Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only

arch/ia64/kernel/perfmon.c

@@ -2159,7 +2159,7 @@ static const struct file_operations pfm_file_ops = {
 static char *pfmfs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
 	return dynamic_dname(dentry, buffer, buflen, "pfm:[%lu]",
-			     dentry->d_inode->i_ino);
+			     d_inode(dentry)->i_ino);
 }
 
 static const struct dentry_operations pfmfs_dentry_operations = {

arch/powerpc/platforms/cell/spufs/inode.c

@@ -111,7 +111,7 @@ out:
 static int
 spufs_setattr(struct dentry *dentry, struct iattr *attr)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	if ((attr->ia_valid & ATTR_SIZE) &&
 	    (attr->ia_size != inode->i_size))
@@ -163,14 +163,14 @@ static void spufs_prune_dir(struct dentry *dir)
 {
 	struct dentry *dentry, *tmp;
 
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock(&d_inode(dir)->i_mutex);
 	list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) {
 		spin_lock(&dentry->d_lock);
-		if (!(d_unhashed(dentry)) && dentry->d_inode) {
+		if (!(d_unhashed(dentry)) && d_really_is_positive(dentry)) {
 			dget_dlock(dentry);
 			__d_drop(dentry);
 			spin_unlock(&dentry->d_lock);
-			simple_unlink(dir->d_inode, dentry);
+			simple_unlink(d_inode(dir), dentry);
 			/* XXX: what was dcache_lock protecting here? Other
 			 * filesystems (IB, configfs) release dcache_lock
 			 * before unlink */
@@ -180,7 +180,7 @@ static void spufs_prune_dir(struct dentry *dir)
 		}
 	}
 	shrink_dcache_parent(dir);
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 }
 
 /* Caller must hold parent->i_mutex */
@@ -192,7 +192,7 @@ static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 	d_drop(dir);
 	res = simple_rmdir(parent, dir);
 	/* We have to give up the mm_struct */
-	spu_forget(SPUFS_I(dir->d_inode)->i_ctx);
+	spu_forget(SPUFS_I(d_inode(dir))->i_ctx);
 	return res;
 }
 
@@ -222,8 +222,8 @@ static int spufs_dir_close(struct inode *inode, struct file *file)
 	int ret;
 
 	dir = file->f_path.dentry;
-	parent = dir->d_parent->d_inode;
-	ctx = SPUFS_I(dir->d_inode)->i_ctx;
+	parent = d_inode(dir->d_parent);
+	ctx = SPUFS_I(d_inode(dir))->i_ctx;
 
 	mutex_lock_nested(&parent->i_mutex, I_MUTEX_PARENT);
 	ret = spufs_rmdir(parent, dir);
@@ -460,7 +460,7 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 		goto out_aff_unlock;
 
 	if (affinity) {
-		spufs_set_affinity(flags, SPUFS_I(dentry->d_inode)->i_ctx,
+		spufs_set_affinity(flags, SPUFS_I(d_inode(dentry))->i_ctx,
 								neighbor);
 		if (neighbor)
 			put_spu_context(neighbor);
@@ -504,7 +504,7 @@ spufs_mkgang(struct inode *dir, struct dentry *dentry, umode_t mode)
 
 	d_instantiate(dentry, inode);
 	inc_nlink(dir);
-	inc_nlink(dentry->d_inode);
+	inc_nlink(d_inode(dentry));
 	return ret;
 
 out_iput:
@@ -561,7 +561,7 @@ static struct file_system_type spufs_type;
 long spufs_create(struct path *path, struct dentry *dentry,
 		unsigned int flags, umode_t mode, struct file *filp)
 {
-	struct inode *dir = path->dentry->d_inode;
+	struct inode *dir = d_inode(path->dentry);
 	int ret;
 
 	/* check if we are on spufs */

arch/s390/hypfs/inode.c

@@ -48,7 +48,7 @@ static struct dentry *hypfs_last_dentry;
 static void hypfs_update_update(struct super_block *sb)
 {
 	struct hypfs_sb_info *sb_info = sb->s_fs_info;
-	struct inode *inode = sb_info->update_file->d_inode;
+	struct inode *inode = d_inode(sb_info->update_file);
 
 	sb_info->last_update = get_seconds();
 	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -64,7 +64,7 @@ static void hypfs_add_dentry(struct dentry *dentry)
 
 static inline int hypfs_positive(struct dentry *dentry)
 {
-	return dentry->d_inode && !d_unhashed(dentry);
+	return d_really_is_positive(dentry) && !d_unhashed(dentry);
 }
 
 static void hypfs_remove(struct dentry *dentry)
@@ -72,16 +72,16 @@ static void hypfs_remove(struct dentry *dentry)
 	struct dentry *parent;
 
 	parent = dentry->d_parent;
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	if (hypfs_positive(dentry)) {
 		if (d_is_dir(dentry))
-			simple_rmdir(parent->d_inode, dentry);
+			simple_rmdir(d_inode(parent), dentry);
 		else
-			simple_unlink(parent->d_inode, dentry);
+			simple_unlink(d_inode(parent), dentry);
 	}
 	d_delete(dentry);
 	dput(dentry);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 }
 
 static void hypfs_delete_tree(struct dentry *root)
@@ -336,7 +336,7 @@ static struct dentry *hypfs_create_file(struct dentry *parent, const char *name,
 	struct dentry *dentry;
 	struct inode *inode;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	dentry = lookup_one_len(name, parent, strlen(name));
 	if (IS_ERR(dentry)) {
 		dentry = ERR_PTR(-ENOMEM);
@@ -357,14 +357,14 @@ static struct dentry *hypfs_create_file(struct dentry *parent, const char *name,
 	} else if (S_ISDIR(mode)) {
 		inode->i_op = &simple_dir_inode_operations;
 		inode->i_fop = &simple_dir_operations;
-		inc_nlink(parent->d_inode);
+		inc_nlink(d_inode(parent));
 	} else
 		BUG();
 	inode->i_private = data;
 	d_instantiate(dentry, inode);
 	dget(dentry);
 fail:
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	return dentry;
 }
 

arch/x86/kvm/assigned-dev.c

@@ -666,7 +666,7 @@ static int probe_sysfs_permissions(struct pci_dev *dev)
 		if (r)
 			return r;
 
-		inode = path.dentry->d_inode;
+		inode = d_backing_inode(path.dentry);
 
 		r = inode_permission(inode, MAY_READ | MAY_WRITE | MAY_ACCESS);
 		path_put(&path);

drivers/base/devtmpfs.c

@@ -157,10 +157,10 @@ static int dev_mkdir(const char *name, umode_t mode)
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
+	err = vfs_mkdir(d_inode(path.dentry), dentry, mode);
 	if (!err)
 		/* mark as kernel-created inode */
-		dentry->d_inode->i_private = &thread;
+		d_inode(dentry)->i_private = &thread;
 	done_path_create(&path, dentry);
 	return err;
 }
@@ -207,7 +207,7 @@ static int handle_create(const char *nodename, umode_t mode, kuid_t uid,
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	err = vfs_mknod(path.dentry->d_inode, dentry, mode, dev->devt);
+	err = vfs_mknod(d_inode(path.dentry), dentry, mode, dev->devt);
 	if (!err) {
 		struct iattr newattrs;
 
@@ -215,12 +215,12 @@ static int handle_create(const char *nodename, umode_t mode, kuid_t uid,
 		newattrs.ia_uid = uid;
 		newattrs.ia_gid = gid;
 		newattrs.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID;
-		mutex_lock(&dentry->d_inode->i_mutex);
+		mutex_lock(&d_inode(dentry)->i_mutex);
 		notify_change(dentry, &newattrs, NULL);
-		mutex_unlock(&dentry->d_inode->i_mutex);
+		mutex_unlock(&d_inode(dentry)->i_mutex);
 
 		/* mark as kernel-created inode */
-		dentry->d_inode->i_private = &thread;
+		d_inode(dentry)->i_private = &thread;
 	}
 	done_path_create(&path, dentry);
 	return err;
@@ -235,16 +235,16 @@ static int dev_rmdir(const char *name)
 	dentry = kern_path_locked(name, &parent);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
-	if (dentry->d_inode) {
-		if (dentry->d_inode->i_private == &thread)
-			err = vfs_rmdir(parent.dentry->d_inode, dentry);
+	if (d_really_is_positive(dentry)) {
+		if (d_inode(dentry)->i_private == &thread)
+			err = vfs_rmdir(d_inode(parent.dentry), dentry);
 		else
 			err = -EPERM;
 	} else {
 		err = -ENOENT;
 	}
 	dput(dentry);
-	mutex_unlock(&parent.dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent.dentry)->i_mutex);
 	path_put(&parent);
 	return err;
 }
@@ -306,11 +306,11 @@ static int handle_remove(const char *nodename, struct device *dev)
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		struct kstat stat;
 		struct path p = {.mnt = parent.mnt, .dentry = dentry};
 		err = vfs_getattr(&p, &stat);
-		if (!err && dev_mynode(dev, dentry->d_inode, &stat)) {
+		if (!err && dev_mynode(dev, d_inode(dentry), &stat)) {
 			struct iattr newattrs;
 			/*
 			 * before unlinking this node, reset permissions
@@ -321,10 +321,10 @@ static int handle_remove(const char *nodename, struct device *dev)
 			newattrs.ia_mode = stat.mode & ~0777;
 			newattrs.ia_valid =
 				ATTR_UID|ATTR_GID|ATTR_MODE;
-			mutex_lock(&dentry->d_inode->i_mutex);
+			mutex_lock(&d_inode(dentry)->i_mutex);
 			notify_change(dentry, &newattrs, NULL);
-			mutex_unlock(&dentry->d_inode->i_mutex);
-			err = vfs_unlink(parent.dentry->d_inode, dentry, NULL);
+			mutex_unlock(&d_inode(dentry)->i_mutex);
+			err = vfs_unlink(d_inode(parent.dentry), dentry, NULL);
 			if (!err || err == -ENOENT)
 				deleted = 1;
 		}
@@ -332,7 +332,7 @@ static int handle_remove(const char *nodename, struct device *dev)
 		err = -ENOENT;
 	}
 	dput(dentry);
-	mutex_unlock(&parent.dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent.dentry)->i_mutex);
 
 	path_put(&parent);
 	if (deleted && strchr(nodename, '/'))

drivers/block/drbd/drbd_debugfs.c

@@ -424,7 +424,7 @@ static int in_flight_summary_show(struct seq_file *m, void *pos)
  * So we have our own inline version of it above.  :-( */
 static inline int debugfs_positive(struct dentry *dentry)
 {
-        return dentry->d_inode && !d_unhashed(dentry);
+        return d_really_is_positive(dentry) && !d_unhashed(dentry);
 }
 
 /* make sure at *open* time that the respective object won't go away. */
@@ -439,15 +439,15 @@ static int drbd_single_open(struct file *file, int (*show)(struct seq_file *, vo
 	 * or has debugfs_remove() already been called? */
 	parent = file->f_path.dentry->d_parent;
 	/* not sure if this can happen: */
-	if (!parent || !parent->d_inode)
+	if (!parent || d_really_is_negative(parent))
 		goto out;
 	/* serialize with d_delete() */
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	/* Make sure the object is still alive */
 	if (debugfs_positive(file->f_path.dentry)
 	&& kref_get_unless_zero(kref))
 		ret = 0;
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	if (!ret) {
 		ret = single_open(file, show, data);
 		if (ret)

drivers/infiniband/hw/ipath/ipath_fs.c

@@ -82,14 +82,14 @@ static int create_file(const char *name, umode_t mode,
 {
 	int error;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
 	if (!IS_ERR(*dentry))
-		error = ipathfs_mknod(parent->d_inode, *dentry,
+		error = ipathfs_mknod(d_inode(parent), *dentry,
 				      mode, fops, data);
 	else
 		error = PTR_ERR(*dentry);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 
 	return error;
 }
@@ -277,11 +277,11 @@ static int remove_file(struct dentry *parent, char *name)
 	}
 
 	spin_lock(&tmp->d_lock);
-	if (!d_unhashed(tmp) && tmp->d_inode) {
+	if (!d_unhashed(tmp) && d_really_is_positive(tmp)) {
 		dget_dlock(tmp);
 		__d_drop(tmp);
 		spin_unlock(&tmp->d_lock);
-		simple_unlink(parent->d_inode, tmp);
+		simple_unlink(d_inode(parent), tmp);
 	} else
 		spin_unlock(&tmp->d_lock);
 
@@ -302,7 +302,7 @@ static int remove_device_files(struct super_block *sb,
 	int ret;
 
 	root = dget(sb->s_root);
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 	snprintf(unit, sizeof unit, "%02d", dd->ipath_unit);
 	dir = lookup_one_len(unit, root, strlen(unit));
 
@@ -315,10 +315,10 @@ static int remove_device_files(struct super_block *sb,
 	remove_file(dir, "flash");
 	remove_file(dir, "atomic_counters");
 	d_delete(dir);
-	ret = simple_rmdir(root->d_inode, dir);
+	ret = simple_rmdir(d_inode(root), dir);
 
 bail:
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 	dput(root);
 	return ret;
 }

drivers/infiniband/hw/qib/qib_fs.c

@@ -89,14 +89,14 @@ static int create_file(const char *name, umode_t mode,
 {
 	int error;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
 	if (!IS_ERR(*dentry))
-		error = qibfs_mknod(parent->d_inode, *dentry,
+		error = qibfs_mknod(d_inode(parent), *dentry,
 				    mode, fops, data);
 	else
 		error = PTR_ERR(*dentry);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 
 	return error;
 }
@@ -455,10 +455,10 @@ static int remove_file(struct dentry *parent, char *name)
 	}
 
 	spin_lock(&tmp->d_lock);
-	if (!d_unhashed(tmp) && tmp->d_inode) {
+	if (!d_unhashed(tmp) && d_really_is_positive(tmp)) {
 		__d_drop(tmp);
 		spin_unlock(&tmp->d_lock);
-		simple_unlink(parent->d_inode, tmp);
+		simple_unlink(d_inode(parent), tmp);
 	} else {
 		spin_unlock(&tmp->d_lock);
 	}
@@ -481,7 +481,7 @@ static int remove_device_files(struct super_block *sb,
 	int ret, i;
 
 	root = dget(sb->s_root);
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 	snprintf(unit, sizeof(unit), "%u", dd->unit);
 	dir = lookup_one_len(unit, root, strlen(unit));
 
@@ -491,7 +491,7 @@ static int remove_device_files(struct super_block *sb,
 		goto bail;
 	}
 
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock(&d_inode(dir)->i_mutex);
 	remove_file(dir, "counters");
 	remove_file(dir, "counter_names");
 	remove_file(dir, "portcounter_names");
@@ -506,13 +506,13 @@ static int remove_device_files(struct super_block *sb,
 		}
 	}
 	remove_file(dir, "flash");
-	mutex_unlock(&dir->d_inode->i_mutex);
-	ret = simple_rmdir(root->d_inode, dir);
+	mutex_unlock(&d_inode(dir)->i_mutex);
+	ret = simple_rmdir(d_inode(root), dir);
 	d_delete(dir);
 	dput(dir);
 
 bail:
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 	dput(root);
 	return ret;
 }

drivers/mtd/ubi/build.c

@@ -1169,9 +1169,9 @@ static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev)
 		return ERR_PTR(err);
 
 	/* MTD device number is defined by the major / minor numbers */
-	major = imajor(path.dentry->d_inode);
-	minor = iminor(path.dentry->d_inode);
-	mode = path.dentry->d_inode->i_mode;
+	major = imajor(d_backing_inode(path.dentry));
+	minor = iminor(d_backing_inode(path.dentry));
+	mode = d_backing_inode(path.dentry)->i_mode;
 	path_put(&path);
 	if (major != MTD_CHAR_MAJOR || !S_ISCHR(mode))
 		return ERR_PTR(-EINVAL);

drivers/mtd/ubi/kapi.c

@@ -314,7 +314,7 @@ struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode)
 	if (error)
 		return ERR_PTR(error);
 
-	inode = path.dentry->d_inode;
+	inode = d_backing_inode(path.dentry);
 	mod = inode->i_mode;
 	ubi_num = ubi_major2num(imajor(inode));
 	vol_id = iminor(inode) - 1;

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c

@@ -538,7 +538,7 @@ static ssize_t tp_la_write(struct file *file, const char __user *buf,
 	char s[32];
 	unsigned long val;
 	size_t size = min(sizeof(s) - 1, count);
-	struct adapter *adap = FILE_DATA(file)->i_private;
+	struct adapter *adap = file_inode(file)->i_private;
 
 	if (copy_from_user(s, buf, size))
 		return -EFAULT;
@@ -647,7 +647,7 @@ static int pm_stats_open(struct inode *inode, struct file *file)
 static ssize_t pm_stats_clear(struct file *file, const char __user *buf,
 			      size_t count, loff_t *pos)
 {
-	struct adapter *adap = FILE_DATA(file)->i_private;
+	struct adapter *adap = file_inode(file)->i_private;
 
 	t4_write_reg(adap, PM_RX_STAT_CONFIG_A, 0);
 	t4_write_reg(adap, PM_TX_STAT_CONFIG_A, 0);
@@ -1005,7 +1005,7 @@ static ssize_t mbox_write(struct file *file, const char __user *buf,
 		   &data[7], &c) < 8 || c != '\n')
 		return -EINVAL;
 
-	ino = FILE_DATA(file);
+	ino = file_inode(file);
 	mbox = (uintptr_t)ino->i_private & 7;
 	adap = ino->i_private - mbox;
 	addr = adap->regs + PF_REG(mbox, CIM_PF_MAILBOX_DATA_A);
@@ -1034,7 +1034,7 @@ static ssize_t flash_read(struct file *file, char __user *buf, size_t count,
 			  loff_t *ppos)
 {
 	loff_t pos = *ppos;
-	loff_t avail = FILE_DATA(file)->i_size;
+	loff_t avail = file_inode(file)->i_size;
 	struct adapter *adap = file->private_data;
 
 	if (pos < 0)
@@ -1479,7 +1479,7 @@ static ssize_t rss_key_write(struct file *file, const char __user *buf,
 	int i, j;
 	u32 key[10];
 	char s[100], *p;
-	struct adapter *adap = FILE_DATA(file)->i_private;
+	struct adapter *adap = file_inode(file)->i_private;
 
 	if (count > sizeof(s) - 1)
 		return -EINVAL;
@@ -1951,12 +1951,6 @@ static const struct file_operations mem_debugfs_fops = {
 	.llseek  = default_llseek,
 };
 
-static void set_debugfs_file_size(struct dentry *de, loff_t size)
-{
-	if (!IS_ERR(de) && de->d_inode)
-		de->d_inode->i_size = size;
-}
-
 static void add_debugfs_mem(struct adapter *adap, const char *name,
 			    unsigned int idx, unsigned int size_mb)
 {
@@ -2072,9 +2066,8 @@ int t4_setup_debugfs(struct adapter *adap)
 		}
 	}
 
-	de = debugfs_create_file("flash", S_IRUSR, adap->debugfs_root, adap,
-				 &flash_debugfs_fops);
-	set_debugfs_file_size(de, adap->params.sf_size);
+	de = debugfs_create_file_size("flash", S_IRUSR, adap->debugfs_root, adap,
+				      &flash_debugfs_fops, adap->params.sf_size);
 
 	return 0;
 }

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.h

@@ -37,8 +37,6 @@
 
 #include <linux/export.h>
 
-#define FILE_DATA(_file) ((_file)->f_path.dentry->d_inode)
-
 #define DEFINE_SIMPLE_DEBUGFS_FILE(name) \
 static int name##_open(struct inode *inode, struct file *file) \
 { \

drivers/oprofile/oprofilefs.c

@@ -138,22 +138,22 @@ static int __oprofilefs_create_file(struct dentry *root, char const *name,
 	struct dentry *dentry;
 	struct inode *inode;
 
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 	dentry = d_alloc_name(root, name);
 	if (!dentry) {
-		mutex_unlock(&root->d_inode->i_mutex);
+		mutex_unlock(&d_inode(root)->i_mutex);
 		return -ENOMEM;
 	}
 	inode = oprofilefs_get_inode(root->d_sb, S_IFREG | perm);
 	if (!inode) {
 		dput(dentry);
-		mutex_unlock(&root->d_inode->i_mutex);
+		mutex_unlock(&d_inode(root)->i_mutex);
 		return -ENOMEM;
 	}
 	inode->i_fop = fops;
 	inode->i_private = priv;
 	d_add(dentry, inode);
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 	return 0;
 }
 
@@ -215,22 +215,22 @@ struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name)
 	struct dentry *dentry;
 	struct inode *inode;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	dentry = d_alloc_name(parent, name);
 	if (!dentry) {
-		mutex_unlock(&parent->d_inode->i_mutex);
+		mutex_unlock(&d_inode(parent)->i_mutex);
 		return NULL;
 	}
 	inode = oprofilefs_get_inode(parent->d_sb, S_IFDIR | 0755);
 	if (!inode) {
 		dput(dentry);
-		mutex_unlock(&parent->d_inode->i_mutex);
+		mutex_unlock(&d_inode(parent)->i_mutex);
 		return NULL;
 	}
 	inode->i_op = &simple_dir_inode_operations;
 	inode->i_fop = &simple_dir_operations;
 	d_add(dentry, inode);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	return dentry;
 }
 

drivers/staging/lustre/lustre/llite/dcache.c

@@ -153,7 +153,7 @@ static int ll_ddelete(const struct dentry *de)
 
 	CDEBUG(D_DENTRY, "%s dentry %pd (%p, parent %p, inode %p) %s%s\n",
 	       d_lustre_invalid((struct dentry *)de) ? "deleting" : "keeping",
-	       de, de, de->d_parent, de->d_inode,
+	       de, de, de->d_parent, d_inode(de),
 	       d_unhashed(de) ? "" : "hashed,",
 	       list_empty(&de->d_subdirs) ? "" : "subdirs");
 
@@ -167,8 +167,8 @@ static int ll_ddelete(const struct dentry *de)
 #if 0
 	/* if not ldlm lock for this inode, set i_nlink to 0 so that
 	 * this inode can be recycled later b=20433 */
-	if (de->d_inode && !find_cbdata(de->d_inode))
-		clear_nlink(de->d_inode);
+	if (d_really_is_positive(de) && !find_cbdata(d_inode(de)))
+		clear_nlink(d_inode(de));
 #endif
 
 	if (d_lustre_invalid((struct dentry *)de))
@@ -181,7 +181,7 @@ int ll_d_init(struct dentry *de)
 	LASSERT(de != NULL);
 
 	CDEBUG(D_DENTRY, "ldd on dentry %pd (%p) parent %p inode %p refc %d\n",
-		de, de, de->d_parent, de->d_inode,
+		de, de, de->d_parent, d_inode(de),
 		d_count(de));
 
 	if (de->d_fsdata == NULL) {
@@ -261,7 +261,7 @@ void ll_invalidate_aliases(struct inode *inode)
 	ll_d_hlist_for_each_entry(dentry, p, &inode->i_dentry, d_u.d_alias) {
 		CDEBUG(D_DENTRY, "dentry in drop %pd (%p) parent %p inode %p flags %d\n",
 		       dentry, dentry, dentry->d_parent,
-		       dentry->d_inode, dentry->d_flags);
+		       d_inode(dentry), dentry->d_flags);
 
 		d_lustre_invalidate(dentry, 0);
 	}
@@ -309,7 +309,7 @@ void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode)
 static int ll_revalidate_dentry(struct dentry *dentry,
 				unsigned int lookup_flags)
 {
-	struct inode *dir = dentry->d_parent->d_inode;
+	struct inode *dir = d_inode(dentry->d_parent);
 
 	/*
 	 * if open&create is set, talk to MDS to make sure file is created if
@@ -329,7 +329,7 @@ static int ll_revalidate_dentry(struct dentry *dentry,
 	if (lookup_flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	do_statahead_enter(dir, &dentry, dentry->d_inode == NULL);
+	do_statahead_enter(dir, &dentry, d_inode(dentry) == NULL);
 	ll_statahead_mark(dir, dentry);
 	return 1;
 }

drivers/staging/lustre/lustre/llite/file.c

@@ -388,7 +388,7 @@ int ll_file_release(struct inode *inode, struct file *file)
 static int ll_intent_file_open(struct dentry *dentry, void *lmm,
 			       int lmmsize, struct lookup_intent *itp)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 	struct dentry *parent = dentry->d_parent;
 	const char *name = dentry->d_name.name;
@@ -413,7 +413,7 @@ static int ll_intent_file_open(struct dentry *dentry, void *lmm,
 			opc = LUSTRE_OPC_CREATE;
 	}
 
-	op_data  = ll_prep_md_op_data(NULL, parent->d_inode,
+	op_data  = ll_prep_md_op_data(NULL, d_inode(parent),
 				      inode, name, len,
 				      O_RDWR, opc, NULL);
 	if (IS_ERR(op_data))
@@ -2896,7 +2896,7 @@ static int ll_inode_revalidate_fini(struct inode *inode, int rc)
 
 static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ptlrpc_request *req = NULL;
 	struct obd_export *exp;
 	int rc = 0;
@@ -2948,12 +2948,12 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 		   do_lookup() -> ll_revalidate_it(). We cannot use d_drop
 		   here to preserve get_cwd functionality on 2.6.
 		   Bug 10503 */
-		if (!dentry->d_inode->i_nlink)
+		if (!d_inode(dentry)->i_nlink)
 			d_lustre_invalidate(dentry, 0);
 
 		ll_lookup_finish_locks(&oit, inode);
-	} else if (!ll_have_md_lock(dentry->d_inode, &ibits, LCK_MINMODE)) {
-		struct ll_sb_info *sbi = ll_i2sbi(dentry->d_inode);
+	} else if (!ll_have_md_lock(d_inode(dentry), &ibits, LCK_MINMODE)) {
+		struct ll_sb_info *sbi = ll_i2sbi(d_inode(dentry));
 		u64 valid = OBD_MD_FLGETATTR;
 		struct md_op_data *op_data;
 		int ealen = 0;
@@ -2991,7 +2991,7 @@ out:
 
 static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int rc;
 
 	rc = __ll_inode_revalidate(dentry, ibits);
@@ -3019,7 +3019,7 @@ static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
 
 int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
 {
-	struct inode *inode = de->d_inode;
+	struct inode *inode = d_inode(de);
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 	struct ll_inode_info *lli = ll_i2info(inode);
 	int res = 0;

drivers/staging/lustre/lustre/llite/llite_internal.h

@@ -1488,7 +1488,7 @@ static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
 {
 	CDEBUG(D_DENTRY, "invalidate dentry %pd (%p) parent %p inode %p refc %d\n",
 	       dentry, dentry,
-	       dentry->d_parent, dentry->d_inode, d_count(dentry));
+	       dentry->d_parent, d_inode(dentry), d_count(dentry));
 
 	spin_lock_nested(&dentry->d_lock,
 			 nested ? DENTRY_D_LOCK_NESTED : DENTRY_D_LOCK_NORMAL);

drivers/staging/lustre/lustre/llite/llite_lib.c

@@ -1166,7 +1166,7 @@ static int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
 		  struct md_open_data **mod)
 {
 	struct lustre_md md;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ll_sb_info *sbi = ll_i2sbi(inode);
 	struct ptlrpc_request *request = NULL;
 	int rc, ia_valid;
@@ -1290,7 +1290,7 @@ static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
  */
 int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ll_inode_info *lli = ll_i2info(inode);
 	struct md_op_data *op_data = NULL;
 	struct md_open_data *mod = NULL;
@@ -1465,7 +1465,7 @@ out:
 
 int ll_setattr(struct dentry *de, struct iattr *attr)
 {
-	int mode = de->d_inode->i_mode;
+	int mode = d_inode(de)->i_mode;
 
 	if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
 			      (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))

drivers/staging/lustre/lustre/llite/llite_nfs.c

@@ -230,11 +230,11 @@ static int ll_nfs_get_name_filldir(struct dir_context *ctx, const char *name,
 static int ll_get_name(struct dentry *dentry, char *name,
 		       struct dentry *child)
 {
-	struct inode *dir = dentry->d_inode;
+	struct inode *dir = d_inode(dentry);
 	int rc;
 	struct ll_getname_data lgd = {
 		.lgd_name = name,
-		.lgd_fid = ll_i2info(child->d_inode)->lli_fid,
+		.lgd_fid = ll_i2info(d_inode(child))->lli_fid,
 		.ctx.actor = ll_nfs_get_name_filldir,
 	};
 
@@ -282,7 +282,7 @@ static struct dentry *ll_fh_to_parent(struct super_block *sb, struct fid *fid,
 static struct dentry *ll_get_parent(struct dentry *dchild)
 {
 	struct ptlrpc_request *req = NULL;
-	struct inode	  *dir = dchild->d_inode;
+	struct inode	  *dir = d_inode(dchild);
 	struct ll_sb_info     *sbi;
 	struct dentry	 *result = NULL;
 	struct mdt_body       *body;

drivers/staging/lustre/lustre/llite/namei.c

@@ -155,7 +155,7 @@ static void ll_invalidate_negative_children(struct inode *dir)
 			list_for_each_entry_safe(child, tmp_subdir,
 						 &dentry->d_subdirs,
 						 d_child) {
-				if (child->d_inode == NULL)
+				if (d_really_is_negative(child))
 					d_lustre_invalidate(child, 1);
 			}
 		}
@@ -392,7 +392,7 @@ struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
 			iput(inode);
 			CDEBUG(D_DENTRY,
 			       "Reuse dentry %p inode %p refc %d flags %#x\n",
-			      new, new->d_inode, d_count(new), new->d_flags);
+			      new, d_inode(new), d_count(new), new->d_flags);
 			return new;
 		}
 	}
@@ -401,7 +401,7 @@ struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
 		return ERR_PTR(rc);
 	d_add(de, inode);
 	CDEBUG(D_DENTRY, "Add dentry %p inode %p refc %d flags %#x\n",
-	       de, de->d_inode, d_count(de), de->d_flags);
+	       de, d_inode(de), d_count(de), de->d_flags);
 	return de;
 }
 
@@ -448,7 +448,7 @@ static int ll_lookup_it_finish(struct ptlrpc_request *request,
 		   !it_disposition(it, DISP_OPEN_CREATE)) {
 		/* With DISP_OPEN_CREATE dentry will
 		   instantiated in ll_create_it. */
-		LASSERT((*de)->d_inode == NULL);
+		LASSERT(d_inode(*de) == NULL);
 		d_instantiate(*de, inode);
 	}
 
@@ -541,7 +541,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 		goto out;
 	}
 
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	if ((it->it_op & IT_OPEN) && inode &&
 	    !S_ISREG(inode->i_mode) &&
 	    !S_ISDIR(inode->i_mode)) {
@@ -638,9 +638,9 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 
 			*opened |= FILE_CREATED;
 		}
-		if (dentry->d_inode && it_disposition(it, DISP_OPEN_OPEN)) {
+		if (d_really_is_positive(dentry) && it_disposition(it, DISP_OPEN_OPEN)) {
 			/* Open dentry. */
-			if (S_ISFIFO(dentry->d_inode->i_mode)) {
+			if (S_ISFIFO(d_inode(dentry)->i_mode)) {
 				/* We cannot call open here as it would
 				 * deadlock.
 				 */
@@ -862,8 +862,8 @@ static int ll_create_nd(struct inode *dir, struct dentry *dentry,
 
 static inline void ll_get_child_fid(struct dentry *child, struct lu_fid *fid)
 {
-	if (child->d_inode)
-		*fid = *ll_inode2fid(child->d_inode);
+	if (d_really_is_positive(child))
+		*fid = *ll_inode2fid(d_inode(child));
 }
 
 /**
@@ -1076,7 +1076,7 @@ static int ll_symlink(struct inode *dir, struct dentry *dentry,
 static int ll_link(struct dentry *old_dentry, struct inode *dir,
 		   struct dentry *new_dentry)
 {
-	struct inode *src = old_dentry->d_inode;
+	struct inode *src = d_inode(old_dentry);
 	struct ll_sb_info *sbi = ll_i2sbi(dir);
 	struct ptlrpc_request *request = NULL;
 	struct md_op_data *op_data;

drivers/staging/lustre/lustre/llite/statahead.c

@@ -880,7 +880,7 @@ static int do_sa_lookup(struct inode *dir, struct ll_sa_entry *entry)
 static int do_sa_revalidate(struct inode *dir, struct ll_sa_entry *entry,
 			    struct dentry *dentry)
 {
-	struct inode	     *inode = dentry->d_inode;
+	struct inode	     *inode = d_inode(dentry);
 	struct lookup_intent      it = { .it_op = IT_GETATTR,
 					 .d.lustre.it_lock_handle = 0 };
 	struct md_enqueue_info   *minfo;
@@ -926,7 +926,7 @@ static int do_sa_revalidate(struct inode *dir, struct ll_sa_entry *entry,
 static void ll_statahead_one(struct dentry *parent, const char *entry_name,
 			     int entry_name_len)
 {
-	struct inode	     *dir    = parent->d_inode;
+	struct inode	     *dir    = d_inode(parent);
 	struct ll_inode_info     *lli    = ll_i2info(dir);
 	struct ll_statahead_info *sai    = lli->lli_sai;
 	struct dentry	    *dentry = NULL;
@@ -944,8 +944,8 @@ static void ll_statahead_one(struct dentry *parent, const char *entry_name,
 		rc = do_sa_lookup(dir, entry);
 	} else {
 		rc = do_sa_revalidate(dir, entry, dentry);
-		if (rc == 1 && agl_should_run(sai, dentry->d_inode))
-			ll_agl_add(sai, dentry->d_inode, entry->se_index);
+		if (rc == 1 && agl_should_run(sai, d_inode(dentry)))
+			ll_agl_add(sai, d_inode(dentry), entry->se_index);
 	}
 
 	if (dentry != NULL)
@@ -968,7 +968,7 @@ static void ll_statahead_one(struct dentry *parent, const char *entry_name,
 static int ll_agl_thread(void *arg)
 {
 	struct dentry	    *parent = (struct dentry *)arg;
-	struct inode	     *dir    = parent->d_inode;
+	struct inode	     *dir    = d_inode(parent);
 	struct ll_inode_info     *plli   = ll_i2info(dir);
 	struct ll_inode_info     *clli;
 	struct ll_sb_info	*sbi    = ll_i2sbi(dir);
@@ -1042,7 +1042,7 @@ static void ll_start_agl(struct dentry *parent, struct ll_statahead_info *sai)
 	CDEBUG(D_READA, "start agl thread: sai %p, parent %pd\n",
 	       sai, parent);
 
-	plli = ll_i2info(parent->d_inode);
+	plli = ll_i2info(d_inode(parent));
 	task = kthread_run(ll_agl_thread, parent,
 			       "ll_agl_%u", plli->lli_opendir_pid);
 	if (IS_ERR(task)) {
@@ -1059,7 +1059,7 @@ static void ll_start_agl(struct dentry *parent, struct ll_statahead_info *sai)
 static int ll_statahead_thread(void *arg)
 {
 	struct dentry	    *parent = (struct dentry *)arg;
-	struct inode	     *dir    = parent->d_inode;
+	struct inode	     *dir    = d_inode(parent);
 	struct ll_inode_info     *plli   = ll_i2info(dir);
 	struct ll_inode_info     *clli;
 	struct ll_sb_info	*sbi    = ll_i2sbi(dir);
@@ -1604,7 +1604,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 			rc = md_revalidate_lock(ll_i2mdexp(dir), &it,
 						ll_inode2fid(inode), &bits);
 			if (rc == 1) {
-				if ((*dentryp)->d_inode == NULL) {
+				if (d_inode(*dentryp) == NULL) {
 					struct dentry *alias;
 
 					alias = ll_splice_alias(inode,
@@ -1614,13 +1614,13 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 						return PTR_ERR(alias);
 					}
 					*dentryp = alias;
-				} else if ((*dentryp)->d_inode != inode) {
+				} else if (d_inode(*dentryp) != inode) {
 					/* revalidate, but inode is recreated */
 					CDEBUG(D_READA,
 					      "stale dentry %pd inode %lu/%u, statahead inode %lu/%u\n",
 					      *dentryp,
-					      (*dentryp)->d_inode->i_ino,
-					      (*dentryp)->d_inode->i_generation,
+					      d_inode(*dentryp)->i_ino,
+					      d_inode(*dentryp)->i_generation,
 					      inode->i_ino,
 					      inode->i_generation);
 					ll_sai_unplug(sai, entry);
@@ -1666,8 +1666,8 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 
 	/* get parent reference count here, and put it in ll_statahead_thread */
 	parent = dget((*dentryp)->d_parent);
-	if (unlikely(sai->sai_inode != parent->d_inode)) {
-		struct ll_inode_info *nlli = ll_i2info(parent->d_inode);
+	if (unlikely(sai->sai_inode != d_inode(parent))) {
+		struct ll_inode_info *nlli = ll_i2info(d_inode(parent));
 
 		CWARN("Race condition, someone changed %pd just now: old parent "DFID", new parent "DFID"\n",
 		      *dentryp,
@@ -1689,7 +1689,7 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp,
 	ll_sai_get(sai);
 	lli->lli_sai = sai;
 
-	plli = ll_i2info(parent->d_inode);
+	plli = ll_i2info(d_inode(parent));
 	rc = PTR_ERR(kthread_run(ll_statahead_thread, parent,
 				 "ll_sa_%u", plli->lli_opendir_pid));
 	thread = &sai->sai_thread;

drivers/staging/lustre/lustre/llite/symlink.c

@@ -120,7 +120,7 @@ failed:
 
 static void *ll_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ptlrpc_request *request = NULL;
 	int rc;
 	char *symname = NULL;

drivers/staging/lustre/lustre/llite/xattr.c

@@ -214,7 +214,7 @@ int ll_setxattr_common(struct inode *inode, const char *name,
 int ll_setxattr(struct dentry *dentry, const char *name,
 		const void *value, size_t size, int flags)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	LASSERT(inode);
 	LASSERT(name);
@@ -267,7 +267,7 @@ int ll_setxattr(struct dentry *dentry, const char *name,
 
 int ll_removexattr(struct dentry *dentry, const char *name)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	LASSERT(inode);
 	LASSERT(name);
@@ -457,7 +457,7 @@ out:
 ssize_t ll_getxattr(struct dentry *dentry, const char *name,
 		    void *buffer, size_t size)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	LASSERT(inode);
 	LASSERT(name);
@@ -545,7 +545,7 @@ out:
 
 ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int rc = 0, rc2 = 0;
 	struct lov_mds_md *lmm = NULL;
 	struct ptlrpc_request *request = NULL;

drivers/usb/gadget/legacy/inode.c

@@ -1505,7 +1505,7 @@ static void destroy_ep_files (struct dev_data *dev)
 		list_del_init (&ep->epfiles);
 		dentry = ep->dentry;
 		ep->dentry = NULL;
-		parent = dentry->d_parent->d_inode;
+		parent = d_inode(dentry->d_parent);
 
 		/* break link to controller */
 		if (ep->state == STATE_EP_ENABLED)

fs/9p/acl.c

@@ -247,7 +247,7 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
 	if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
 		return v9fs_remote_get_acl(dentry, name, buffer, size, type);
 
-	acl = v9fs_get_cached_acl(dentry->d_inode, type);
+	acl = v9fs_get_cached_acl(d_inode(dentry), type);
 	if (IS_ERR(acl))
 		return PTR_ERR(acl);
 	if (acl == NULL)
@@ -285,7 +285,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
 	int retval;
 	struct posix_acl *acl;
 	struct v9fs_session_info *v9ses;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	if (strcmp(name, "") != 0)
 		return -EINVAL;

fs/9p/vfs_dentry.c

@@ -53,7 +53,7 @@ static int v9fs_cached_dentry_delete(const struct dentry *dentry)
 		 dentry, dentry);
 
 	/* Don't cache negative dentries */
-	if (!dentry->d_inode)
+	if (d_really_is_negative(dentry))
 		return 1;
 	return 0;
 }
@@ -83,7 +83,7 @@ static int v9fs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	if (!inode)
 		goto out_valid;
 

fs/9p/vfs_dir.c

@@ -138,6 +138,8 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx)
 					   &err);
 			if (err)
 				return err;
+			if (n == 0)
+				return 0;
 
 			rdir->head = 0;
 			rdir->tail = n;

fs/9p/vfs_inode.c

@@ -595,7 +595,7 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
 		 dir, dentry, flags);
 
 	v9ses = v9fs_inode2v9ses(dir);
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	dfid = v9fs_fid_lookup(dentry->d_parent);
 	if (IS_ERR(dfid)) {
 		retval = PTR_ERR(dfid);
@@ -864,7 +864,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
 	}
 
 	/* Only creates */
-	if (!(flags & O_CREAT) || dentry->d_inode)
+	if (!(flags & O_CREAT) || d_really_is_positive(dentry))
 		return finish_no_open(file, res);
 
 	err = 0;
@@ -881,7 +881,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
 	}
 
 	v9fs_invalidate_inode_attr(dir);
-	v9inode = V9FS_I(dentry->d_inode);
+	v9inode = V9FS_I(d_inode(dentry));
 	mutex_lock(&v9inode->v_mutex);
 	if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) &&
 	    !v9inode->writeback_fid &&
@@ -908,7 +908,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
 
 	file->private_data = fid;
 	if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
-		v9fs_cache_inode_set_cookie(dentry->d_inode, file);
+		v9fs_cache_inode_set_cookie(d_inode(dentry), file);
 
 	*opened |= FILE_CREATED;
 out:
@@ -969,8 +969,8 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 	p9_debug(P9_DEBUG_VFS, "\n");
 	retval = 0;
-	old_inode = old_dentry->d_inode;
-	new_inode = new_dentry->d_inode;
+	old_inode = d_inode(old_dentry);
+	new_inode = d_inode(new_dentry);
 	v9ses = v9fs_inode2v9ses(old_inode);
 	oldfid = v9fs_fid_lookup(old_dentry);
 	if (IS_ERR(oldfid))
@@ -1061,7 +1061,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
 	v9ses = v9fs_dentry2v9ses(dentry);
 	if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
-		generic_fillattr(dentry->d_inode, stat);
+		generic_fillattr(d_inode(dentry), stat);
 		return 0;
 	}
 	fid = v9fs_fid_lookup(dentry);
@@ -1072,8 +1072,8 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	if (IS_ERR(st))
 		return PTR_ERR(st);
 
-	v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb);
-	generic_fillattr(dentry->d_inode, stat);
+	v9fs_stat2inode(st, d_inode(dentry), d_inode(dentry)->i_sb);
+	generic_fillattr(d_inode(dentry), stat);
 
 	p9stat_free(st);
 	kfree(st);
@@ -1095,7 +1095,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct p9_wstat wstat;
 
 	p9_debug(P9_DEBUG_VFS, "\n");
-	retval = inode_change_ok(dentry->d_inode, iattr);
+	retval = inode_change_ok(d_inode(dentry), iattr);
 	if (retval)
 		return retval;
 
@@ -1128,20 +1128,20 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
 
 	/* Write all dirty data */
 	if (d_is_reg(dentry))
-		filemap_write_and_wait(dentry->d_inode->i_mapping);
+		filemap_write_and_wait(d_inode(dentry)->i_mapping);
 
 	retval = p9_client_wstat(fid, &wstat);
 	if (retval < 0)
 		return retval;
 
 	if ((iattr->ia_valid & ATTR_SIZE) &&
-	    iattr->ia_size != i_size_read(dentry->d_inode))
-		truncate_setsize(dentry->d_inode, iattr->ia_size);
+	    iattr->ia_size != i_size_read(d_inode(dentry)))
+		truncate_setsize(d_inode(dentry), iattr->ia_size);
 
-	v9fs_invalidate_inode_attr(dentry->d_inode);
+	v9fs_invalidate_inode_attr(d_inode(dentry));
 
-	setattr_copy(dentry->d_inode, iattr);
-	mark_inode_dirty(dentry->d_inode);
+	setattr_copy(d_inode(dentry), iattr);
+	mark_inode_dirty(d_inode(dentry));
 	return 0;
 }
 
@@ -1403,7 +1403,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
 	retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
 	__putname(name);
 	if (!retval) {
-		v9fs_refresh_inode(oldfid, old_dentry->d_inode);
+		v9fs_refresh_inode(oldfid, d_inode(old_dentry));
 		v9fs_invalidate_inode_attr(dir);
 	}
 clunk_fid:

fs/9p/vfs_inode_dotl.c

@@ -265,7 +265,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
 	}
 
 	/* Only creates */
-	if (!(flags & O_CREAT) || dentry->d_inode)
+	if (!(flags & O_CREAT) || d_really_is_positive(dentry))
 		return	finish_no_open(file, res);
 
 	v9ses = v9fs_inode2v9ses(dir);
@@ -481,7 +481,7 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
 	p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
 	v9ses = v9fs_dentry2v9ses(dentry);
 	if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
-		generic_fillattr(dentry->d_inode, stat);
+		generic_fillattr(d_inode(dentry), stat);
 		return 0;
 	}
 	fid = v9fs_fid_lookup(dentry);
@@ -496,8 +496,8 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
 	if (IS_ERR(st))
 		return PTR_ERR(st);
 
-	v9fs_stat2inode_dotl(st, dentry->d_inode);
-	generic_fillattr(dentry->d_inode, stat);
+	v9fs_stat2inode_dotl(st, d_inode(dentry));
+	generic_fillattr(d_inode(dentry), stat);
 	/* Change block size to what the server returned */
 	stat->blksize = st->st_blksize;
 
@@ -557,7 +557,7 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 	int retval;
 	struct p9_fid *fid;
 	struct p9_iattr_dotl p9attr;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	p9_debug(P9_DEBUG_VFS, "\n");
 
@@ -795,10 +795,10 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
 		if (IS_ERR(fid))
 			return PTR_ERR(fid);
 
-		v9fs_refresh_inode_dotl(fid, old_dentry->d_inode);
+		v9fs_refresh_inode_dotl(fid, d_inode(old_dentry));
 	}
-	ihold(old_dentry->d_inode);
-	d_instantiate(dentry, old_dentry->d_inode);
+	ihold(d_inode(old_dentry));
+	d_instantiate(dentry, d_inode(old_dentry));
 
 	return err;
 }

fs/9p/vfs_super.c

@@ -168,8 +168,8 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
 			retval = PTR_ERR(st);
 			goto release_sb;
 		}
-		root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
-		v9fs_stat2inode_dotl(st, root->d_inode);
+		d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
+		v9fs_stat2inode_dotl(st, d_inode(root));
 		kfree(st);
 	} else {
 		struct p9_wstat *st = NULL;
@@ -179,8 +179,8 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
 			goto release_sb;
 		}
 
-		root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
-		v9fs_stat2inode(st, root->d_inode, sb);
+		d_inode(root)->i_ino = v9fs_qid2ino(&st->qid);
+		v9fs_stat2inode(st, d_inode(root), sb);
 
 		p9stat_free(st);
 		kfree(st);

fs/adfs/inode.c

@@ -298,7 +298,7 @@ out:
 int
 adfs_notify_change(struct dentry *dentry, struct iattr *attr)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct super_block *sb = inode->i_sb;
 	unsigned int ia_valid = attr->ia_valid;
 	int error;

fs/affs/amigaffs.c

@@ -138,7 +138,7 @@ affs_fix_dcache(struct inode *inode, u32 entry_ino)
 static int
 affs_remove_link(struct dentry *dentry)
 {
-	struct inode *dir, *inode = dentry->d_inode;
+	struct inode *dir, *inode = d_inode(dentry);
 	struct super_block *sb = inode->i_sb;
 	struct buffer_head *bh = NULL, *link_bh = NULL;
 	u32 link_ino, ino;
@@ -268,11 +268,11 @@ affs_remove_header(struct dentry *dentry)
 	struct buffer_head *bh = NULL;
 	int retval;
 
-	dir = dentry->d_parent->d_inode;
+	dir = d_inode(dentry->d_parent);
 	sb = dir->i_sb;
 
 	retval = -ENOENT;
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	if (!inode)
 		goto done;
 
@@ -471,10 +471,9 @@ affs_warning(struct super_block *sb, const char *function, const char *fmt, ...)
 bool
 affs_nofilenametruncate(const struct dentry *dentry)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	return affs_test_opt(AFFS_SB(inode->i_sb)->s_flags, SF_NO_TRUNCATE);
-
 }
 
 /* Check if the name is valid for a affs object. */

fs/affs/inode.c

@@ -213,7 +213,7 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc)
 int
 affs_notify_change(struct dentry *dentry, struct iattr *attr)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int error;
 
 	pr_debug("notify_change(%lu,0x%x)\n", inode->i_ino, attr->ia_valid);

fs/affs/namei.c

@@ -251,7 +251,7 @@ int
 affs_unlink(struct inode *dir, struct dentry *dentry)
 {
 	pr_debug("%s(dir=%lu, %lu \"%pd\")\n", __func__, dir->i_ino,
-		 dentry->d_inode->i_ino, dentry);
+		 d_inode(dentry)->i_ino, dentry);
 
 	return affs_remove_header(dentry);
 }
@@ -320,7 +320,7 @@ int
 affs_rmdir(struct inode *dir, struct dentry *dentry)
 {
 	pr_debug("%s(dir=%lu, %lu \"%pd\")\n", __func__, dir->i_ino,
-		 dentry->d_inode->i_ino, dentry);
+		 d_inode(dentry)->i_ino, dentry);
 
 	return affs_remove_header(dentry);
 }
@@ -403,7 +403,7 @@ err:
 int
 affs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
 {
-	struct inode *inode = old_dentry->d_inode;
+	struct inode *inode = d_inode(old_dentry);
 
 	pr_debug("%s(%lu, %lu, \"%pd\")\n", __func__, inode->i_ino, dir->i_ino,
 		 dentry);
@@ -430,13 +430,13 @@ affs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		return retval;
 
 	/* Unlink destination if it already exists */
-	if (new_dentry->d_inode) {
+	if (d_really_is_positive(new_dentry)) {
 		retval = affs_remove_header(new_dentry);
 		if (retval)
 			return retval;
 	}
 
-	bh = affs_bread(sb, old_dentry->d_inode->i_ino);
+	bh = affs_bread(sb, d_inode(old_dentry)->i_ino);
 	if (!bh)
 		return -EIO;
 

fs/afs/dir.c

@@ -505,7 +505,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
 	_enter("{%x:%u},%p{%pd},",
 	       vnode->fid.vid, vnode->fid.vnode, dentry, dentry);
 
-	ASSERTCMP(dentry->d_inode, ==, NULL);
+	ASSERTCMP(d_inode(dentry), ==, NULL);
 
 	if (dentry->d_name.len >= AFSNAMEMAX) {
 		_leave(" = -ENAMETOOLONG");
@@ -563,8 +563,8 @@ success:
 	_leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%u }",
 	       fid.vnode,
 	       fid.unique,
-	       dentry->d_inode->i_ino,
-	       dentry->d_inode->i_generation);
+	       d_inode(dentry)->i_ino,
+	       d_inode(dentry)->i_generation);
 
 	return NULL;
 }
@@ -586,9 +586,9 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	vnode = AFS_FS_I(dentry->d_inode);
+	vnode = AFS_FS_I(d_inode(dentry));
 
-	if (dentry->d_inode)
+	if (d_really_is_positive(dentry))
 		_enter("{v={%x:%u} n=%pd fl=%lx},",
 		       vnode->fid.vid, vnode->fid.vnode, dentry,
 		       vnode->flags);
@@ -601,7 +601,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
 
 	/* lock down the parent dentry so we can peer at it */
 	parent = dget_parent(dentry);
-	dir = AFS_FS_I(parent->d_inode);
+	dir = AFS_FS_I(d_inode(parent));
 
 	/* validate the parent directory */
 	if (test_bit(AFS_VNODE_MODIFIED, &dir->flags))
@@ -623,9 +623,9 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
 	switch (ret) {
 	case 0:
 		/* the filename maps to something */
-		if (!dentry->d_inode)
+		if (d_really_is_negative(dentry))
 			goto out_bad;
-		if (is_bad_inode(dentry->d_inode)) {
+		if (is_bad_inode(d_inode(dentry))) {
 			printk("kAFS: afs_d_revalidate: %pd2 has bad inode\n",
 			       dentry);
 			goto out_bad;
@@ -647,7 +647,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
 			_debug("%pd: file deleted (uq %u -> %u I:%u)",
 			       dentry, fid.unique,
 			       vnode->fid.unique,
-			       dentry->d_inode->i_generation);
+			       d_inode(dentry)->i_generation);
 			spin_lock(&vnode->lock);
 			set_bit(AFS_VNODE_DELETED, &vnode->flags);
 			spin_unlock(&vnode->lock);
@@ -658,7 +658,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
 	case -ENOENT:
 		/* the filename is unknown */
 		_debug("%pd: dirent not found", dentry);
-		if (dentry->d_inode)
+		if (d_really_is_positive(dentry))
 			goto not_found;
 		goto out_valid;
 
@@ -703,9 +703,9 @@ static int afs_d_delete(const struct dentry *dentry)
 	if (dentry->d_flags & DCACHE_NFSFS_RENAMED)
 		goto zap;
 
-	if (dentry->d_inode &&
-	    (test_bit(AFS_VNODE_DELETED,   &AFS_FS_I(dentry->d_inode)->flags) ||
-	     test_bit(AFS_VNODE_PSEUDODIR, &AFS_FS_I(dentry->d_inode)->flags)))
+	if (d_really_is_positive(dentry) &&
+	    (test_bit(AFS_VNODE_DELETED,   &AFS_FS_I(d_inode(dentry))->flags) ||
+	     test_bit(AFS_VNODE_PSEUDODIR, &AFS_FS_I(d_inode(dentry))->flags)))
 		goto zap;
 
 	_leave(" = 0 [keep]");
@@ -814,8 +814,8 @@ static int afs_rmdir(struct inode *dir, struct dentry *dentry)
 	if (ret < 0)
 		goto rmdir_error;
 
-	if (dentry->d_inode) {
-		vnode = AFS_FS_I(dentry->d_inode);
+	if (d_really_is_positive(dentry)) {
+		vnode = AFS_FS_I(d_inode(dentry));
 		clear_nlink(&vnode->vfs_inode);
 		set_bit(AFS_VNODE_DELETED, &vnode->flags);
 		afs_discard_callback_on_delete(vnode);
@@ -856,8 +856,8 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
 		goto error;
 	}
 
-	if (dentry->d_inode) {
-		vnode = AFS_FS_I(dentry->d_inode);
+	if (d_really_is_positive(dentry)) {
+		vnode = AFS_FS_I(d_inode(dentry));
 
 		/* make sure we have a callback promise on the victim */
 		ret = afs_validate(vnode, key);
@@ -869,7 +869,7 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
 	if (ret < 0)
 		goto remove_error;
 
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		/* if the file wasn't deleted due to excess hard links, the
 		 * fileserver will break the callback promise on the file - if
 		 * it had one - before it returns to us, and if it was deleted,
@@ -879,7 +879,7 @@ static int afs_unlink(struct inode *dir, struct dentry *dentry)
 		 * or it was outstanding on a different server, then it won't
 		 * break it either...
 		 */
-		vnode = AFS_FS_I(dentry->d_inode);
+		vnode = AFS_FS_I(d_inode(dentry));
 		if (test_bit(AFS_VNODE_DELETED, &vnode->flags))
 			_debug("AFS_VNODE_DELETED");
 		if (test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags))
@@ -977,7 +977,7 @@ static int afs_link(struct dentry *from, struct inode *dir,
 	struct key *key;
 	int ret;
 
-	vnode = AFS_FS_I(from->d_inode);
+	vnode = AFS_FS_I(d_inode(from));
 	dvnode = AFS_FS_I(dir);
 
 	_enter("{%x:%u},{%x:%u},{%pd}",
@@ -1089,7 +1089,7 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct key *key;
 	int ret;
 
-	vnode = AFS_FS_I(old_dentry->d_inode);
+	vnode = AFS_FS_I(d_inode(old_dentry));
 	orig_dvnode = AFS_FS_I(old_dir);
 	new_dvnode = AFS_FS_I(new_dir);
 

fs/afs/inode.c

@@ -379,7 +379,7 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 {
 	struct inode *inode;
 
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 
 	_enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation);
 
@@ -458,7 +458,7 @@ void afs_evict_inode(struct inode *inode)
  */
 int afs_setattr(struct dentry *dentry, struct iattr *attr)
 {
-	struct afs_vnode *vnode = AFS_FS_I(dentry->d_inode);
+	struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
 	struct key *key;
 	int ret;
 

fs/afs/mntpt.c

@@ -134,7 +134,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 
 	_enter("{%pd}", mntpt);
 
-	BUG_ON(!mntpt->d_inode);
+	BUG_ON(!d_inode(mntpt));
 
 	ret = -ENOMEM;
 	devname = (char *) get_zeroed_page(GFP_KERNEL);
@@ -145,7 +145,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 	if (!options)
 		goto error_no_options;
 
-	vnode = AFS_FS_I(mntpt->d_inode);
+	vnode = AFS_FS_I(d_inode(mntpt));
 	if (test_bit(AFS_VNODE_PSEUDODIR, &vnode->flags)) {
 		/* if the directory is a pseudo directory, use the d_name */
 		static const char afs_root_cell[] = ":root.cell.";
@@ -169,14 +169,14 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
 		}
 	} else {
 		/* read the contents of the AFS special symlink */
-		loff_t size = i_size_read(mntpt->d_inode);
+		loff_t size = i_size_read(d_inode(mntpt));
 		char *buf;
 
 		ret = -EINVAL;
 		if (size > PAGE_SIZE - 1)
 			goto error_no_page;
 
-		page = read_mapping_page(mntpt->d_inode->i_mapping, 0, NULL);
+		page = read_mapping_page(d_inode(mntpt)->i_mapping, 0, NULL);
 		if (IS_ERR(page)) {
 			ret = PTR_ERR(page);
 			goto error_no_page;

fs/afs/super.c

@@ -529,7 +529,7 @@ static void afs_destroy_inode(struct inode *inode)
 static int afs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct afs_volume_status vs;
-	struct afs_vnode *vnode = AFS_FS_I(dentry->d_inode);
+	struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
 	struct key *key;
 	int ret;
 

fs/autofs4/autofs_i.h

@@ -235,12 +235,12 @@ static inline u32 autofs4_get_dev(struct autofs_sb_info *sbi)
 
 static inline u64 autofs4_get_ino(struct autofs_sb_info *sbi)
 {
-	return sbi->sb->s_root->d_inode->i_ino;
+	return d_inode(sbi->sb->s_root)->i_ino;
 }
 
 static inline int simple_positive(struct dentry *dentry)
 {
-	return dentry->d_inode && !d_unhashed(dentry);
+	return d_really_is_positive(dentry) && !d_unhashed(dentry);
 }
 
 static inline void __autofs4_add_expiring(struct dentry *dentry)

fs/autofs4/expire.c

@@ -374,7 +374,7 @@ static struct dentry *should_expire(struct dentry *dentry,
 		return NULL;
 	}
 
-	if (dentry->d_inode && d_is_symlink(dentry)) {
+	if (d_really_is_positive(dentry) && d_is_symlink(dentry)) {
 		DPRINTK("checking symlink %p %pd", dentry, dentry);
 		/*
 		 * A symlink can't be "busy" in the usual sense so

fs/autofs4/inode.c

@@ -71,7 +71,7 @@ void autofs4_kill_sb(struct super_block *sb)
 static int autofs4_show_options(struct seq_file *m, struct dentry *root)
 {
 	struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
-	struct inode *root_inode = root->d_sb->s_root->d_inode;
+	struct inode *root_inode = d_inode(root->d_sb->s_root);
 
 	if (!sbi)
 		return 0;
@@ -352,8 +352,8 @@ struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
 
 	inode->i_mode = mode;
 	if (sb->s_root) {
-		inode->i_uid = sb->s_root->d_inode->i_uid;
-		inode->i_gid = sb->s_root->d_inode->i_gid;
+		inode->i_uid = d_inode(sb->s_root)->i_uid;
+		inode->i_gid = d_inode(sb->s_root)->i_gid;
 	}
 	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
 	inode->i_ino = get_next_ino();

fs/autofs4/root.c

@@ -240,7 +240,7 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry,
 		spin_lock(&expiring->d_lock);
 
 		/* We've already been dentry_iput or unlinked */
-		if (!expiring->d_inode)
+		if (d_really_is_negative(expiring))
 			goto next;
 
 		qstr = &expiring->d_name;
@@ -371,7 +371,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
 	 * having d_mountpoint() true, so there's no need to call back
 	 * to the daemon.
 	 */
-	if (dentry->d_inode && d_is_symlink(dentry)) {
+	if (d_really_is_positive(dentry) && d_is_symlink(dentry)) {
 		spin_unlock(&sbi->fs_lock);
 		goto done;
 	}
@@ -459,7 +459,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
 			return 0;
 		if (d_mountpoint(dentry))
 			return 0;
-		inode = ACCESS_ONCE(dentry->d_inode);
+		inode = d_inode_rcu(dentry);
 		if (inode && S_ISLNK(inode->i_mode))
 			return -EISDIR;
 		if (list_empty(&dentry->d_subdirs))
@@ -485,7 +485,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
 		 * an incorrect ELOOP error return.
 		 */
 		if ((!d_mountpoint(dentry) && !simple_empty(dentry)) ||
-		    (dentry->d_inode && d_is_symlink(dentry)))
+		    (d_really_is_positive(dentry) && d_is_symlink(dentry)))
 			status = -EISDIR;
 	}
 	spin_unlock(&sbi->fs_lock);
@@ -625,8 +625,8 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
 	}
 	dput(ino->dentry);
 
-	dentry->d_inode->i_size = 0;
-	clear_nlink(dentry->d_inode);
+	d_inode(dentry)->i_size = 0;
+	clear_nlink(d_inode(dentry));
 
 	dir->i_mtime = CURRENT_TIME;
 
@@ -719,8 +719,8 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
 			atomic_dec(&p_ino->count);
 	}
 	dput(ino->dentry);
-	dentry->d_inode->i_size = 0;
-	clear_nlink(dentry->d_inode);
+	d_inode(dentry)->i_size = 0;
+	clear_nlink(d_inode(dentry));
 
 	if (dir->i_nlink)
 		drop_nlink(dir);
@@ -839,7 +839,7 @@ static inline int autofs4_ask_umount(struct vfsmount *mnt, int __user *p)
 */
 int is_autofs4_dentry(struct dentry *dentry)
 {
-	return dentry && dentry->d_inode &&
+	return dentry && d_really_is_positive(dentry) &&
 		dentry->d_op == &autofs4_dentry_operations &&
 		dentry->d_fsdata != NULL;
 }

fs/autofs4/symlink.c

@@ -18,7 +18,7 @@ static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
 	if (ino && !autofs4_oz_mode(sbi))
 		ino->last_used = jiffies;
-	nd_set_link(nd, dentry->d_inode->i_private);
+	nd_set_link(nd, d_inode(dentry)->i_private);
 	return NULL;
 }
 

fs/autofs4/waitq.c

@@ -322,7 +322,7 @@ static int validate_request(struct autofs_wait_queue **wait,
 		 * continue on and create a new request.
 		 */
 		if (!IS_ROOT(dentry)) {
-			if (dentry->d_inode && d_unhashed(dentry)) {
+			if (d_really_is_positive(dentry) && d_unhashed(dentry)) {
 				struct dentry *parent = dentry->d_parent;
 				new = d_lookup(parent, &dentry->d_name);
 				if (new)
@@ -364,7 +364,7 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
 	if (pid == 0 || tgid == 0)
 		return -ENOENT;
 
-	if (!dentry->d_inode) {
+	if (d_really_is_negative(dentry)) {
 		/*
 		 * A wait for a negative dentry is invalid for certain
 		 * cases. A direct or offset mount "always" has its mount

fs/befs/linuxvfs.c

@@ -471,7 +471,7 @@ static void *
 befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	struct super_block *sb = dentry->d_sb;
-	struct befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+	struct befs_inode_info *befs_ino = BEFS_I(d_inode(dentry));
 	befs_data_stream *data = &befs_ino->i_data.ds;
 	befs_off_t len = data->size;
 	char *link;
@@ -501,7 +501,7 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 static void *
 befs_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-	struct befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+	struct befs_inode_info *befs_ino = BEFS_I(d_inode(dentry));
 
 	nd_set_link(nd, befs_ino->i_data.symlink);
 	return NULL;

fs/bfs/dir.c

@@ -153,7 +153,7 @@ static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
 static int bfs_link(struct dentry *old, struct inode *dir,
 						struct dentry *new)
 {
-	struct inode *inode = old->d_inode;
+	struct inode *inode = d_inode(old);
 	struct bfs_sb_info *info = BFS_SB(inode->i_sb);
 	int err;
 
@@ -176,7 +176,7 @@ static int bfs_link(struct dentry *old, struct inode *dir,
 static int bfs_unlink(struct inode *dir, struct dentry *dentry)
 {
 	int error = -ENOENT;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct buffer_head *bh;
 	struct bfs_dirent *de;
 	struct bfs_sb_info *info = BFS_SB(inode->i_sb);
@@ -216,7 +216,7 @@ static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	int error = -ENOENT;
 
 	old_bh = new_bh = NULL;
-	old_inode = old_dentry->d_inode;
+	old_inode = d_inode(old_dentry);
 	if (S_ISDIR(old_inode->i_mode))
 		return -EINVAL;
 
@@ -231,7 +231,7 @@ static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		goto end_rename;
 
 	error = -EPERM;
-	new_inode = new_dentry->d_inode;
+	new_inode = d_inode(new_dentry);
 	new_bh = bfs_find_entry(new_dir, 
 				new_dentry->d_name.name, 
 				new_dentry->d_name.len, &new_de);

fs/binfmt_misc.c

@@ -591,7 +591,7 @@ static void kill_node(Node *e)
 	write_unlock(&entries_lock);
 
 	if (dentry) {
-		drop_nlink(dentry->d_inode);
+		drop_nlink(d_inode(dentry));
 		d_drop(dentry);
 		dput(dentry);
 		simple_release_fs(&bm_mnt, &entry_count);
@@ -638,11 +638,11 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
 	case 3:
 		/* Delete this handler. */
 		root = dget(file->f_path.dentry->d_sb->s_root);
-		mutex_lock(&root->d_inode->i_mutex);
+		mutex_lock(&d_inode(root)->i_mutex);
 
 		kill_node(e);
 
-		mutex_unlock(&root->d_inode->i_mutex);
+		mutex_unlock(&d_inode(root)->i_mutex);
 		dput(root);
 		break;
 	default:
@@ -675,14 +675,14 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
 		return PTR_ERR(e);
 
 	root = dget(sb->s_root);
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 	dentry = lookup_one_len(e->name, root, strlen(e->name));
 	err = PTR_ERR(dentry);
 	if (IS_ERR(dentry))
 		goto out;
 
 	err = -EEXIST;
-	if (dentry->d_inode)
+	if (d_really_is_positive(dentry))
 		goto out2;
 
 	inode = bm_get_inode(sb, S_IFREG | 0644);
@@ -711,7 +711,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
 out2:
 	dput(dentry);
 out:
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 	dput(root);
 
 	if (err) {
@@ -754,12 +754,12 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
 	case 3:
 		/* Delete all handlers. */
 		root = dget(file->f_path.dentry->d_sb->s_root);
-		mutex_lock(&root->d_inode->i_mutex);
+		mutex_lock(&d_inode(root)->i_mutex);
 
 		while (!list_empty(&entries))
 			kill_node(list_entry(entries.next, Node, list));
 
-		mutex_unlock(&root->d_inode->i_mutex);
+		mutex_unlock(&d_inode(root)->i_mutex);
 		dput(root);
 		break;
 	default:

fs/block_dev.c

@@ -152,7 +152,8 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
 	struct inode *inode = file->f_mapping->host;
 
 	return __blockdev_direct_IO(iocb, inode, I_BDEV(inode), iter, offset,
-				    blkdev_get_block, NULL, NULL, 0);
+				    blkdev_get_block, NULL, NULL,
+				    DIO_SKIP_DIO_COUNT);
 }
 
 int __sync_blockdev(struct block_device *bdev, int wait)
@@ -1716,7 +1717,7 @@ struct block_device *lookup_bdev(const char *pathname)
 	if (error)
 		return ERR_PTR(error);
 
-	inode = path.dentry->d_inode;
+	inode = d_backing_inode(path.dentry);
 	error = -ENOTBLK;
 	if (!S_ISBLK(inode->i_mode))
 		goto fail;

fs/btrfs/export.c

@@ -152,7 +152,7 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
 
 static struct dentry *btrfs_get_parent(struct dentry *child)
 {
-	struct inode *dir = child->d_inode;
+	struct inode *dir = d_inode(child);
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct btrfs_path *path;
 	struct extent_buffer *leaf;
@@ -220,8 +220,8 @@ fail:
 static int btrfs_get_name(struct dentry *parent, char *name,
 			  struct dentry *child)
 {
-	struct inode *inode = child->d_inode;
-	struct inode *dir = parent->d_inode;
+	struct inode *inode = d_inode(child);
+	struct inode *dir = d_inode(parent);
 	struct btrfs_path *path;
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct btrfs_inode_ref *iref;

fs/btrfs/file.c

@@ -1862,7 +1862,7 @@ static int start_ordered_ops(struct inode *inode, loff_t start, loff_t end)
 int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct dentry *dentry = file->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct btrfs_trans_handle *trans;
 	struct btrfs_log_ctx ctx;

fs/btrfs/inode.c

@@ -4020,16 +4020,16 @@ static int btrfs_unlink(struct inode *dir, struct dentry *dentry)
 {
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct btrfs_trans_handle *trans;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int ret;
 
 	trans = __unlink_start_trans(dir);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
 
-	btrfs_record_unlink_dir(trans, dir, dentry->d_inode, 0);
+	btrfs_record_unlink_dir(trans, dir, d_inode(dentry), 0);
 
-	ret = btrfs_unlink_inode(trans, root, dir, dentry->d_inode,
+	ret = btrfs_unlink_inode(trans, root, dir, d_inode(dentry),
 				 dentry->d_name.name, dentry->d_name.len);
 	if (ret)
 		goto out;
@@ -4128,7 +4128,7 @@ out:
 
 static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int err = 0;
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct btrfs_trans_handle *trans;
@@ -4155,7 +4155,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
 		goto out;
 
 	/* now the directory is empty */
-	err = btrfs_unlink_inode(trans, root, dir, dentry->d_inode,
+	err = btrfs_unlink_inode(trans, root, dir, d_inode(dentry),
 				 dentry->d_name.name, dentry->d_name.len);
 	if (!err)
 		btrfs_i_size_write(inode, 0);
@@ -4915,7 +4915,7 @@ static int btrfs_setsize(struct inode *inode, struct iattr *attr)
 
 static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	int err;
 
@@ -5547,10 +5547,10 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
 static int btrfs_dentry_delete(const struct dentry *dentry)
 {
 	struct btrfs_root *root;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	if (!inode && !IS_ROOT(dentry))
-		inode = dentry->d_parent->d_inode;
+		inode = d_inode(dentry->d_parent);
 
 	if (inode) {
 		root = BTRFS_I(inode)->root;
@@ -6357,7 +6357,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
 {
 	struct btrfs_trans_handle *trans;
 	struct btrfs_root *root = BTRFS_I(dir)->root;
-	struct inode *inode = old_dentry->d_inode;
+	struct inode *inode = d_inode(old_dentry);
 	u64 index;
 	int err;
 	int drop_inode = 0;
@@ -8260,7 +8260,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 	if (check_direct_IO(BTRFS_I(inode)->root, iocb, iter, offset))
 		return 0;
 
-	atomic_inc(&inode->i_dio_count);
+	inode_dio_begin(inode);
 	smp_mb__after_atomic();
 
 	/*
@@ -8300,7 +8300,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 		current->journal_info = &outstanding_extents;
 	} else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
 				     &BTRFS_I(inode)->runtime_flags)) {
-		inode_dio_done(inode);
+		inode_dio_end(inode);
 		flags = DIO_LOCKING | DIO_SKIP_HOLES;
 		wakeup = false;
 	}
@@ -8319,7 +8319,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
 	}
 out:
 	if (wakeup)
-		inode_dio_done(inode);
+		inode_dio_end(inode);
 	if (relock)
 		mutex_lock(&inode->i_mutex);
 
@@ -9006,7 +9006,7 @@ static int btrfs_getattr(struct vfsmount *mnt,
 			 struct dentry *dentry, struct kstat *stat)
 {
 	u64 delalloc_bytes;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	u32 blocksize = inode->i_sb->s_blocksize;
 
 	generic_fillattr(inode, stat);
@@ -9027,8 +9027,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct btrfs_trans_handle *trans;
 	struct btrfs_root *root = BTRFS_I(old_dir)->root;
 	struct btrfs_root *dest = BTRFS_I(new_dir)->root;
-	struct inode *new_inode = new_dentry->d_inode;
-	struct inode *old_inode = old_dentry->d_inode;
+	struct inode *new_inode = d_inode(new_dentry);
+	struct inode *old_inode = d_inode(old_dentry);
 	struct timespec ctime = CURRENT_TIME;
 	u64 index = 0;
 	u64 root_objectid;
@@ -9140,7 +9140,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 					old_dentry->d_name.len);
 	} else {
 		ret = __btrfs_unlink_inode(trans, root, old_dir,
-					old_dentry->d_inode,
+					d_inode(old_dentry),
 					old_dentry->d_name.name,
 					old_dentry->d_name.len);
 		if (!ret)
@@ -9164,12 +9164,12 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			BUG_ON(new_inode->i_nlink == 0);
 		} else {
 			ret = btrfs_unlink_inode(trans, dest, new_dir,
-						 new_dentry->d_inode,
+						 d_inode(new_dentry),
 						 new_dentry->d_name.name,
 						 new_dentry->d_name.len);
 		}
 		if (!ret && new_inode->i_nlink == 0)
-			ret = btrfs_orphan_add(trans, new_dentry->d_inode);
+			ret = btrfs_orphan_add(trans, d_inode(new_dentry));
 		if (ret) {
 			btrfs_abort_transaction(trans, root, ret);
 			goto out_fail;

fs/btrfs/ioctl.c

@@ -724,7 +724,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 	if (ret)
 		goto fail;
 
-	inode = btrfs_lookup_dentry(dentry->d_parent->d_inode, dentry);
+	inode = btrfs_lookup_dentry(d_inode(dentry->d_parent), dentry);
 	if (IS_ERR(inode)) {
 		ret = PTR_ERR(inode);
 		goto fail;
@@ -768,10 +768,10 @@ static int btrfs_may_delete(struct inode *dir, struct dentry *victim, int isdir)
 {
 	int error;
 
-	if (!victim->d_inode)
+	if (d_really_is_negative(victim))
 		return -ENOENT;
 
-	BUG_ON(victim->d_parent->d_inode != dir);
+	BUG_ON(d_inode(victim->d_parent) != dir);
 	audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE);
 
 	error = inode_permission(dir, MAY_WRITE | MAY_EXEC);
@@ -779,8 +779,8 @@ static int btrfs_may_delete(struct inode *dir, struct dentry *victim, int isdir)
 		return error;
 	if (IS_APPEND(dir))
 		return -EPERM;
-	if (check_sticky(dir, victim->d_inode) || IS_APPEND(victim->d_inode) ||
-	    IS_IMMUTABLE(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
+	if (check_sticky(dir, d_inode(victim)) || IS_APPEND(d_inode(victim)) ||
+	    IS_IMMUTABLE(d_inode(victim)) || IS_SWAPFILE(d_inode(victim)))
 		return -EPERM;
 	if (isdir) {
 		if (!d_is_dir(victim))
@@ -799,7 +799,7 @@ static int btrfs_may_delete(struct inode *dir, struct dentry *victim, int isdir)
 /* copy of may_create in fs/namei.c() */
 static inline int btrfs_may_create(struct inode *dir, struct dentry *child)
 {
-	if (child->d_inode)
+	if (d_really_is_positive(child))
 		return -EEXIST;
 	if (IS_DEADDIR(dir))
 		return -ENOENT;
@@ -817,7 +817,7 @@ static noinline int btrfs_mksubvol(struct path *parent,
 				   u64 *async_transid, bool readonly,
 				   struct btrfs_qgroup_inherit *inherit)
 {
-	struct inode *dir  = parent->dentry->d_inode;
+	struct inode *dir  = d_inode(parent->dentry);
 	struct dentry *dentry;
 	int error;
 
@@ -831,7 +831,7 @@ static noinline int btrfs_mksubvol(struct path *parent,
 		goto out_unlock;
 
 	error = -EEXIST;
-	if (dentry->d_inode)
+	if (d_really_is_positive(dentry))
 		goto out_dput;
 
 	error = btrfs_may_create(dir, dentry);
@@ -2301,7 +2301,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 {
 	struct dentry *parent = file->f_path.dentry;
 	struct dentry *dentry;
-	struct inode *dir = parent->d_inode;
+	struct inode *dir = d_inode(parent);
 	struct inode *inode;
 	struct btrfs_root *root = BTRFS_I(dir)->root;
 	struct btrfs_root *dest = NULL;
@@ -2340,12 +2340,12 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 		goto out_unlock_dir;
 	}
 
-	if (!dentry->d_inode) {
+	if (d_really_is_negative(dentry)) {
 		err = -ENOENT;
 		goto out_dput;
 	}
 
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	dest = BTRFS_I(inode)->root;
 	if (!capable(CAP_SYS_ADMIN)) {
 		/*

fs/btrfs/super.c

@@ -925,7 +925,7 @@ setup_root:
 	 * a reference to the dentry.  We will have already gotten a reference
 	 * to the inode in btrfs_fill_super so we're good to go.
 	 */
-	if (!new && sb->s_root->d_inode == inode) {
+	if (!new && d_inode(sb->s_root) == inode) {
 		iput(inode);
 		return dget(sb->s_root);
 	}
@@ -1230,7 +1230,7 @@ static struct dentry *mount_subvol(const char *subvol_name, int flags,
 
 	root = mount_subtree(mnt, subvol_name);
 
-	if (!IS_ERR(root) && !is_subvolume_inode(root->d_inode)) {
+	if (!IS_ERR(root) && !is_subvolume_inode(d_inode(root))) {
 		struct super_block *s = root->d_sb;
 		dput(root);
 		root = ERR_PTR(-EINVAL);
@@ -1895,8 +1895,8 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_fsid.val[0] = be32_to_cpu(fsid[0]) ^ be32_to_cpu(fsid[2]);
 	buf->f_fsid.val[1] = be32_to_cpu(fsid[1]) ^ be32_to_cpu(fsid[3]);
 	/* Mask in the root object ID too, to disambiguate subvols */
-	buf->f_fsid.val[0] ^= BTRFS_I(dentry->d_inode)->root->objectid >> 32;
-	buf->f_fsid.val[1] ^= BTRFS_I(dentry->d_inode)->root->objectid;
+	buf->f_fsid.val[0] ^= BTRFS_I(d_inode(dentry))->root->objectid >> 32;
+	buf->f_fsid.val[1] ^= BTRFS_I(d_inode(dentry))->root->objectid;
 
 	return 0;
 }

fs/btrfs/tree-log.c

@@ -4474,9 +4474,9 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
 			goto out;
 
 	if (!S_ISDIR(inode->i_mode)) {
-		if (!parent || !parent->d_inode || sb != parent->d_inode->i_sb)
+		if (!parent || d_really_is_negative(parent) || sb != d_inode(parent)->i_sb)
 			goto out;
-		inode = parent->d_inode;
+		inode = d_inode(parent);
 	}
 
 	while (1) {
@@ -4502,7 +4502,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
 			break;
 		}
 
-		if (!parent || !parent->d_inode || sb != parent->d_inode->i_sb)
+		if (!parent || d_really_is_negative(parent) || sb != d_inode(parent)->i_sb)
 			break;
 
 		if (IS_ROOT(parent))
@@ -4511,7 +4511,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans,
 		parent = dget_parent(parent);
 		dput(old_parent);
 		old_parent = parent;
-		inode = parent->d_inode;
+		inode = d_inode(parent);
 
 	}
 	dput(old_parent);
@@ -4777,10 +4777,10 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans,
 		log_dentries = true;
 
 	while (1) {
-		if (!parent || !parent->d_inode || sb != parent->d_inode->i_sb)
+		if (!parent || d_really_is_negative(parent) || sb != d_inode(parent)->i_sb)
 			break;
 
-		inode = parent->d_inode;
+		inode = d_inode(parent);
 		if (root != BTRFS_I(inode)->root)
 			break;
 
@@ -4845,7 +4845,7 @@ int btrfs_log_dentry_safe(struct btrfs_trans_handle *trans,
 	struct dentry *parent = dget_parent(dentry);
 	int ret;
 
-	ret = btrfs_log_inode_parent(trans, root, dentry->d_inode, parent,
+	ret = btrfs_log_inode_parent(trans, root, d_inode(dentry), parent,
 				     start, end, 0, ctx);
 	dput(parent);
 

fs/btrfs/xattr.c

@@ -261,7 +261,7 @@ out:
 ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 {
 	struct btrfs_key key, found_key;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct btrfs_path *path;
 	struct extent_buffer *leaf;
@@ -411,13 +411,13 @@ ssize_t btrfs_getxattr(struct dentry *dentry, const char *name,
 	ret = btrfs_is_valid_xattr(name);
 	if (ret)
 		return ret;
-	return __btrfs_getxattr(dentry->d_inode, name, buffer, size);
+	return __btrfs_getxattr(d_inode(dentry), name, buffer, size);
 }
 
 int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 		   size_t size, int flags)
 {
-	struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root;
+	struct btrfs_root *root = BTRFS_I(d_inode(dentry))->root;
 	int ret;
 
 	/*
@@ -440,19 +440,19 @@ int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 		return ret;
 
 	if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN))
-		return btrfs_set_prop(dentry->d_inode, name,
+		return btrfs_set_prop(d_inode(dentry), name,
 				      value, size, flags);
 
 	if (size == 0)
 		value = "";  /* empty EA, do not remove */
 
-	return __btrfs_setxattr(NULL, dentry->d_inode, name, value, size,
+	return __btrfs_setxattr(NULL, d_inode(dentry), name, value, size,
 				flags);
 }
 
 int btrfs_removexattr(struct dentry *dentry, const char *name)
 {
-	struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root;
+	struct btrfs_root *root = BTRFS_I(d_inode(dentry))->root;
 	int ret;
 
 	/*
@@ -475,10 +475,10 @@ int btrfs_removexattr(struct dentry *dentry, const char *name)
 		return ret;
 
 	if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN))
-		return btrfs_set_prop(dentry->d_inode, name,
+		return btrfs_set_prop(d_inode(dentry), name,
 				      NULL, 0, XATTR_REPLACE);
 
-	return __btrfs_setxattr(NULL, dentry->d_inode, name, NULL, 0,
+	return __btrfs_setxattr(NULL, d_inode(dentry), name, NULL, 0,
 				XATTR_REPLACE);
 }
 

fs/cachefiles/bind.c

@@ -123,11 +123,11 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
 
 	/* check parameters */
 	ret = -EOPNOTSUPP;
-	if (!root->d_inode ||
-	    !root->d_inode->i_op->lookup ||
-	    !root->d_inode->i_op->mkdir ||
-	    !root->d_inode->i_op->setxattr ||
-	    !root->d_inode->i_op->getxattr ||
+	if (d_is_negative(root) ||
+	    !d_backing_inode(root)->i_op->lookup ||
+	    !d_backing_inode(root)->i_op->mkdir ||
+	    !d_backing_inode(root)->i_op->setxattr ||
+	    !d_backing_inode(root)->i_op->getxattr ||
 	    !root->d_sb->s_op->statfs ||
 	    !root->d_sb->s_op->sync_fs)
 		goto error_unsupported;

fs/cachefiles/interface.c

@@ -441,12 +441,12 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
 
 	fscache_set_store_limit(&object->fscache, ni_size);
 
-	oi_size = i_size_read(object->backer->d_inode);
+	oi_size = i_size_read(d_backing_inode(object->backer));
 	if (oi_size == ni_size)
 		return 0;
 
 	cachefiles_begin_secure(cache, &saved_cred);
-	mutex_lock(&object->backer->d_inode->i_mutex);
+	mutex_lock(&d_inode(object->backer)->i_mutex);
 
 	/* if there's an extension to a partial page at the end of the backing
 	 * file, we need to discard the partial page so that we pick up new
@@ -465,7 +465,7 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
 	ret = notify_change(object->backer, &newattrs, NULL);
 
 truncate_failed:
-	mutex_unlock(&object->backer->d_inode->i_mutex);
+	mutex_unlock(&d_inode(object->backer)->i_mutex);
 	cachefiles_end_secure(cache, saved_cred);
 
 	if (ret == -EIO) {

fs/cachefiles/namei.c

@@ -286,13 +286,13 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
 		if (ret < 0) {
 			cachefiles_io_error(cache, "Unlink security error");
 		} else {
-			ret = vfs_unlink(dir->d_inode, rep, NULL);
+			ret = vfs_unlink(d_inode(dir), rep, NULL);
 
 			if (preemptive)
 				cachefiles_mark_object_buried(cache, rep);
 		}
 
-		mutex_unlock(&dir->d_inode->i_mutex);
+		mutex_unlock(&d_inode(dir)->i_mutex);
 
 		if (ret == -EIO)
 			cachefiles_io_error(cache, "Unlink failed");
@@ -303,7 +303,7 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
 
 	/* directories have to be moved to the graveyard */
 	_debug("move stale object to graveyard");
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 
 try_again:
 	/* first step is to make up a grave dentry in the graveyard */
@@ -355,7 +355,7 @@ try_again:
 		return -EIO;
 	}
 
-	if (grave->d_inode) {
+	if (d_is_positive(grave)) {
 		unlock_rename(cache->graveyard, dir);
 		dput(grave);
 		grave = NULL;
@@ -387,8 +387,8 @@ try_again:
 	if (ret < 0) {
 		cachefiles_io_error(cache, "Rename security error %d", ret);
 	} else {
-		ret = vfs_rename(dir->d_inode, rep,
-				 cache->graveyard->d_inode, grave, NULL, 0);
+		ret = vfs_rename(d_inode(dir), rep,
+				 d_inode(cache->graveyard), grave, NULL, 0);
 		if (ret != 0 && ret != -ENOMEM)
 			cachefiles_io_error(cache,
 					    "Rename failed with error %d", ret);
@@ -415,18 +415,18 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 	_enter(",OBJ%x{%p}", object->fscache.debug_id, object->dentry);
 
 	ASSERT(object->dentry);
-	ASSERT(object->dentry->d_inode);
+	ASSERT(d_backing_inode(object->dentry));
 	ASSERT(object->dentry->d_parent);
 
 	dir = dget_parent(object->dentry);
 
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
+	mutex_lock_nested(&d_inode(dir)->i_mutex, I_MUTEX_PARENT);
 
 	if (test_bit(CACHEFILES_OBJECT_BURIED, &object->flags)) {
 		/* object allocation for the same key preemptively deleted this
 		 * object's file so that it could create its own file */
 		_debug("object preemptively buried");
-		mutex_unlock(&dir->d_inode->i_mutex);
+		mutex_unlock(&d_inode(dir)->i_mutex);
 		ret = 0;
 	} else {
 		/* we need to check that our parent is _still_ our parent - it
@@ -438,7 +438,7 @@ int cachefiles_delete_object(struct cachefiles_cache *cache,
 			/* it got moved, presumably by cachefilesd culling it,
 			 * so it's no longer in the key path and we can ignore
 			 * it */
-			mutex_unlock(&dir->d_inode->i_mutex);
+			mutex_unlock(&d_inode(dir)->i_mutex);
 			ret = 0;
 		}
 	}
@@ -473,7 +473,7 @@ int cachefiles_walk_to_object(struct cachefiles_object *parent,
 	path.mnt = cache->mnt;
 
 	ASSERT(parent->dentry);
-	ASSERT(parent->dentry->d_inode);
+	ASSERT(d_backing_inode(parent->dentry));
 
 	if (!(d_is_dir(parent->dentry))) {
 		// TODO: convert file to dir
@@ -497,7 +497,7 @@ lookup_again:
 	/* search the current directory for the element name */
 	_debug("lookup '%s'", name);
 
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
+	mutex_lock_nested(&d_inode(dir)->i_mutex, I_MUTEX_PARENT);
 
 	start = jiffies;
 	next = lookup_one_len(name, dir, nlen);
@@ -505,21 +505,21 @@ lookup_again:
 	if (IS_ERR(next))
 		goto lookup_error;
 
-	_debug("next -> %p %s", next, next->d_inode ? "positive" : "negative");
+	_debug("next -> %p %s", next, d_backing_inode(next) ? "positive" : "negative");
 
 	if (!key)
-		object->new = !next->d_inode;
+		object->new = !d_backing_inode(next);
 
 	/* if this element of the path doesn't exist, then the lookup phase
 	 * failed, and we can release any readers in the certain knowledge that
 	 * there's nothing for them to actually read */
-	if (!next->d_inode)
+	if (d_is_negative(next))
 		fscache_object_lookup_negative(&object->fscache);
 
 	/* we need to create the object if it's negative */
 	if (key || object->type == FSCACHE_COOKIE_TYPE_INDEX) {
 		/* index objects and intervening tree levels must be subdirs */
-		if (!next->d_inode) {
+		if (d_is_negative(next)) {
 			ret = cachefiles_has_space(cache, 1, 0);
 			if (ret < 0)
 				goto create_error;
@@ -529,26 +529,26 @@ lookup_again:
 			if (ret < 0)
 				goto create_error;
 			start = jiffies;
-			ret = vfs_mkdir(dir->d_inode, next, 0);
+			ret = vfs_mkdir(d_inode(dir), next, 0);
 			cachefiles_hist(cachefiles_mkdir_histogram, start);
 			if (ret < 0)
 				goto create_error;
 
-			ASSERT(next->d_inode);
+			ASSERT(d_backing_inode(next));
 
 			_debug("mkdir -> %p{%p{ino=%lu}}",
-			       next, next->d_inode, next->d_inode->i_ino);
+			       next, d_backing_inode(next), d_backing_inode(next)->i_ino);
 
 		} else if (!d_can_lookup(next)) {
 			pr_err("inode %lu is not a directory\n",
-			       next->d_inode->i_ino);
+			       d_backing_inode(next)->i_ino);
 			ret = -ENOBUFS;
 			goto error;
 		}
 
 	} else {
 		/* non-index objects start out life as files */
-		if (!next->d_inode) {
+		if (d_is_negative(next)) {
 			ret = cachefiles_has_space(cache, 1, 0);
 			if (ret < 0)
 				goto create_error;
@@ -558,21 +558,21 @@ lookup_again:
 			if (ret < 0)
 				goto create_error;
 			start = jiffies;
-			ret = vfs_create(dir->d_inode, next, S_IFREG, true);
+			ret = vfs_create(d_inode(dir), next, S_IFREG, true);
 			cachefiles_hist(cachefiles_create_histogram, start);
 			if (ret < 0)
 				goto create_error;
 
-			ASSERT(next->d_inode);
+			ASSERT(d_backing_inode(next));
 
 			_debug("create -> %p{%p{ino=%lu}}",
-			       next, next->d_inode, next->d_inode->i_ino);
+			       next, d_backing_inode(next), d_backing_inode(next)->i_ino);
 
 		} else if (!d_can_lookup(next) &&
 			   !d_is_reg(next)
 			   ) {
 			pr_err("inode %lu is not a file or directory\n",
-			       next->d_inode->i_ino);
+			       d_backing_inode(next)->i_ino);
 			ret = -ENOBUFS;
 			goto error;
 		}
@@ -581,7 +581,7 @@ lookup_again:
 	/* process the next component */
 	if (key) {
 		_debug("advance");
-		mutex_unlock(&dir->d_inode->i_mutex);
+		mutex_unlock(&d_inode(dir)->i_mutex);
 		dput(dir);
 		dir = next;
 		next = NULL;
@@ -617,7 +617,7 @@ lookup_again:
 	/* note that we're now using this object */
 	ret = cachefiles_mark_object_active(cache, object);
 
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(dir);
 	dir = NULL;
 
@@ -646,7 +646,7 @@ lookup_again:
 			const struct address_space_operations *aops;
 
 			ret = -EPERM;
-			aops = object->dentry->d_inode->i_mapping->a_ops;
+			aops = d_backing_inode(object->dentry)->i_mapping->a_ops;
 			if (!aops->bmap)
 				goto check_error;
 
@@ -659,7 +659,7 @@ lookup_again:
 	object->new = 0;
 	fscache_obtained_object(&object->fscache);
 
-	_leave(" = 0 [%lu]", object->dentry->d_inode->i_ino);
+	_leave(" = 0 [%lu]", d_backing_inode(object->dentry)->i_ino);
 	return 0;
 
 create_error:
@@ -695,7 +695,7 @@ lookup_error:
 		cachefiles_io_error(cache, "Lookup failed");
 	next = NULL;
 error:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(next);
 error_out2:
 	dput(dir);
@@ -719,7 +719,7 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
 	_enter(",,%s", dirname);
 
 	/* search the current directory for the element name */
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock(&d_inode(dir)->i_mutex);
 
 	start = jiffies;
 	subdir = lookup_one_len(dirname, dir, strlen(dirname));
@@ -731,10 +731,10 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
 	}
 
 	_debug("subdir -> %p %s",
-	       subdir, subdir->d_inode ? "positive" : "negative");
+	       subdir, d_backing_inode(subdir) ? "positive" : "negative");
 
 	/* we need to create the subdir if it doesn't exist yet */
-	if (!subdir->d_inode) {
+	if (d_is_negative(subdir)) {
 		ret = cachefiles_has_space(cache, 1, 0);
 		if (ret < 0)
 			goto mkdir_error;
@@ -746,22 +746,22 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
 		ret = security_path_mkdir(&path, subdir, 0700);
 		if (ret < 0)
 			goto mkdir_error;
-		ret = vfs_mkdir(dir->d_inode, subdir, 0700);
+		ret = vfs_mkdir(d_inode(dir), subdir, 0700);
 		if (ret < 0)
 			goto mkdir_error;
 
-		ASSERT(subdir->d_inode);
+		ASSERT(d_backing_inode(subdir));
 
 		_debug("mkdir -> %p{%p{ino=%lu}}",
 		       subdir,
-		       subdir->d_inode,
-		       subdir->d_inode->i_ino);
+		       d_backing_inode(subdir),
+		       d_backing_inode(subdir)->i_ino);
 	}
 
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 
 	/* we need to make sure the subdir is a directory */
-	ASSERT(subdir->d_inode);
+	ASSERT(d_backing_inode(subdir));
 
 	if (!d_can_lookup(subdir)) {
 		pr_err("%s is not a directory\n", dirname);
@@ -770,18 +770,18 @@ struct dentry *cachefiles_get_directory(struct cachefiles_cache *cache,
 	}
 
 	ret = -EPERM;
-	if (!subdir->d_inode->i_op->setxattr ||
-	    !subdir->d_inode->i_op->getxattr ||
-	    !subdir->d_inode->i_op->lookup ||
-	    !subdir->d_inode->i_op->mkdir ||
-	    !subdir->d_inode->i_op->create ||
-	    (!subdir->d_inode->i_op->rename &&
-	     !subdir->d_inode->i_op->rename2) ||
-	    !subdir->d_inode->i_op->rmdir ||
-	    !subdir->d_inode->i_op->unlink)
+	if (!d_backing_inode(subdir)->i_op->setxattr ||
+	    !d_backing_inode(subdir)->i_op->getxattr ||
+	    !d_backing_inode(subdir)->i_op->lookup ||
+	    !d_backing_inode(subdir)->i_op->mkdir ||
+	    !d_backing_inode(subdir)->i_op->create ||
+	    (!d_backing_inode(subdir)->i_op->rename &&
+	     !d_backing_inode(subdir)->i_op->rename2) ||
+	    !d_backing_inode(subdir)->i_op->rmdir ||
+	    !d_backing_inode(subdir)->i_op->unlink)
 		goto check_error;
 
-	_leave(" = [%lu]", subdir->d_inode->i_ino);
+	_leave(" = [%lu]", d_backing_inode(subdir)->i_ino);
 	return subdir;
 
 check_error:
@@ -790,19 +790,19 @@ check_error:
 	return ERR_PTR(ret);
 
 mkdir_error:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(subdir);
 	pr_err("mkdir %s failed with error %d\n", dirname, ret);
 	return ERR_PTR(ret);
 
 lookup_error:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	ret = PTR_ERR(subdir);
 	pr_err("Lookup %s failed with error %d\n", dirname, ret);
 	return ERR_PTR(ret);
 
 nomem_d_alloc:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	_leave(" = -ENOMEM");
 	return ERR_PTR(-ENOMEM);
 }
@@ -827,7 +827,7 @@ static struct dentry *cachefiles_check_active(struct cachefiles_cache *cache,
 	//       dir, filename);
 
 	/* look up the victim */
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
+	mutex_lock_nested(&d_inode(dir)->i_mutex, I_MUTEX_PARENT);
 
 	start = jiffies;
 	victim = lookup_one_len(filename, dir, strlen(filename));
@@ -836,13 +836,13 @@ static struct dentry *cachefiles_check_active(struct cachefiles_cache *cache,
 		goto lookup_error;
 
 	//_debug("victim -> %p %s",
-	//       victim, victim->d_inode ? "positive" : "negative");
+	//       victim, d_backing_inode(victim) ? "positive" : "negative");
 
 	/* if the object is no longer there then we probably retired the object
 	 * at the netfs's request whilst the cull was in progress
 	 */
-	if (!victim->d_inode) {
-		mutex_unlock(&dir->d_inode->i_mutex);
+	if (d_is_negative(victim)) {
+		mutex_unlock(&d_inode(dir)->i_mutex);
 		dput(victim);
 		_leave(" = -ENOENT [absent]");
 		return ERR_PTR(-ENOENT);
@@ -871,13 +871,13 @@ static struct dentry *cachefiles_check_active(struct cachefiles_cache *cache,
 
 object_in_use:
 	read_unlock(&cache->active_lock);
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(victim);
 	//_leave(" = -EBUSY [in use]");
 	return ERR_PTR(-EBUSY);
 
 lookup_error:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	ret = PTR_ERR(victim);
 	if (ret == -ENOENT) {
 		/* file or dir now absent - probably retired by netfs */
@@ -913,7 +913,7 @@ int cachefiles_cull(struct cachefiles_cache *cache, struct dentry *dir,
 		return PTR_ERR(victim);
 
 	_debug("victim -> %p %s",
-	       victim, victim->d_inode ? "positive" : "negative");
+	       victim, d_backing_inode(victim) ? "positive" : "negative");
 
 	/* okay... the victim is not being used so we can cull it
 	 * - start by marking it as stale
@@ -936,7 +936,7 @@ int cachefiles_cull(struct cachefiles_cache *cache, struct dentry *dir,
 	return 0;
 
 error_unlock:
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 error:
 	dput(victim);
 	if (ret == -ENOENT) {
@@ -971,7 +971,7 @@ int cachefiles_check_in_use(struct cachefiles_cache *cache, struct dentry *dir,
 	if (IS_ERR(victim))
 		return PTR_ERR(victim);
 
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(victim);
 	//_leave(" = 0");
 	return 0;

fs/cachefiles/rdwr.c

@@ -74,12 +74,12 @@ static int cachefiles_read_waiter(wait_queue_t *wait, unsigned mode,
 static int cachefiles_read_reissue(struct cachefiles_object *object,
 				   struct cachefiles_one_read *monitor)
 {
-	struct address_space *bmapping = object->backer->d_inode->i_mapping;
+	struct address_space *bmapping = d_backing_inode(object->backer)->i_mapping;
 	struct page *backpage = monitor->back_page, *backpage2;
 	int ret;
 
 	_enter("{ino=%lx},{%lx,%lx}",
-	       object->backer->d_inode->i_ino,
+	       d_backing_inode(object->backer)->i_ino,
 	       backpage->index, backpage->flags);
 
 	/* skip if the page was truncated away completely */
@@ -157,7 +157,7 @@ static void cachefiles_read_copier(struct fscache_operation *_op)
 	object = container_of(op->op.object,
 			      struct cachefiles_object, fscache);
 
-	_enter("{ino=%lu}", object->backer->d_inode->i_ino);
+	_enter("{ino=%lu}", d_backing_inode(object->backer)->i_ino);
 
 	max = 8;
 	spin_lock_irq(&object->work_lock);
@@ -247,7 +247,7 @@ static int cachefiles_read_backing_file_one(struct cachefiles_object *object,
 	init_waitqueue_func_entry(&monitor->monitor, cachefiles_read_waiter);
 
 	/* attempt to get hold of the backing page */
-	bmapping = object->backer->d_inode->i_mapping;
+	bmapping = d_backing_inode(object->backer)->i_mapping;
 	newpage = NULL;
 
 	for (;;) {
@@ -408,7 +408,7 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
 	if (!object->backer)
 		goto enobufs;
 
-	inode = object->backer->d_inode;
+	inode = d_backing_inode(object->backer);
 	ASSERT(S_ISREG(inode->i_mode));
 	ASSERT(inode->i_mapping->a_ops->bmap);
 	ASSERT(inode->i_mapping->a_ops->readpages);
@@ -468,7 +468,7 @@ static int cachefiles_read_backing_file(struct cachefiles_object *object,
 					struct list_head *list)
 {
 	struct cachefiles_one_read *monitor = NULL;
-	struct address_space *bmapping = object->backer->d_inode->i_mapping;
+	struct address_space *bmapping = d_backing_inode(object->backer)->i_mapping;
 	struct page *newpage = NULL, *netpage, *_n, *backpage = NULL;
 	int ret = 0;
 
@@ -705,7 +705,7 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,
 	if (cachefiles_has_space(cache, 0, *nr_pages) < 0)
 		space = 0;
 
-	inode = object->backer->d_inode;
+	inode = d_backing_inode(object->backer);
 	ASSERT(S_ISREG(inode->i_mode));
 	ASSERT(inode->i_mapping->a_ops->bmap);
 	ASSERT(inode->i_mapping->a_ops->readpages);

fs/cachefiles/security.c

@@ -55,14 +55,14 @@ static int cachefiles_check_cache_dir(struct cachefiles_cache *cache,
 {
 	int ret;
 
-	ret = security_inode_mkdir(root->d_inode, root, 0);
+	ret = security_inode_mkdir(d_backing_inode(root), root, 0);
 	if (ret < 0) {
 		pr_err("Security denies permission to make dirs: error %d",
 		       ret);
 		return ret;
 	}
 
-	ret = security_inode_create(root->d_inode, root, 0);
+	ret = security_inode_create(d_backing_inode(root), root, 0);
 	if (ret < 0)
 		pr_err("Security denies permission to create files: error %d",
 		       ret);
@@ -95,7 +95,7 @@ int cachefiles_determine_cache_security(struct cachefiles_cache *cache,
 
 	/* use the cache root dir's security context as the basis with
 	 * which create files */
-	ret = set_create_files_as(new, root->d_inode);
+	ret = set_create_files_as(new, d_backing_inode(root));
 	if (ret < 0) {
 		abort_creds(new);
 		cachefiles_begin_secure(cache, _saved_cred);

fs/cachefiles/xattr.c

@@ -33,7 +33,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object)
 	int ret;
 
 	ASSERT(dentry);
-	ASSERT(dentry->d_inode);
+	ASSERT(d_backing_inode(dentry));
 
 	if (!object->fscache.cookie)
 		strcpy(type, "C3");
@@ -52,7 +52,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object)
 
 	if (ret != -EEXIST) {
 		pr_err("Can't set xattr on %pd [%lu] (err %d)\n",
-		       dentry, dentry->d_inode->i_ino,
+		       dentry, d_backing_inode(dentry)->i_ino,
 		       -ret);
 		goto error;
 	}
@@ -64,7 +64,7 @@ int cachefiles_check_object_type(struct cachefiles_object *object)
 			goto bad_type_length;
 
 		pr_err("Can't read xattr on %pd [%lu] (err %d)\n",
-		       dentry, dentry->d_inode->i_ino,
+		       dentry, d_backing_inode(dentry)->i_ino,
 		       -ret);
 		goto error;
 	}
@@ -84,14 +84,14 @@ error:
 
 bad_type_length:
 	pr_err("Cache object %lu type xattr length incorrect\n",
-	       dentry->d_inode->i_ino);
+	       d_backing_inode(dentry)->i_ino);
 	ret = -EIO;
 	goto error;
 
 bad_type:
 	xtype[2] = 0;
 	pr_err("Cache object %pd [%lu] type %s not %s\n",
-	       dentry, dentry->d_inode->i_ino,
+	       dentry, d_backing_inode(dentry)->i_ino,
 	       xtype, type);
 	ret = -EIO;
 	goto error;
@@ -165,7 +165,7 @@ int cachefiles_check_auxdata(struct cachefiles_object *object)
 	int ret;
 
 	ASSERT(dentry);
-	ASSERT(dentry->d_inode);
+	ASSERT(d_backing_inode(dentry));
 	ASSERT(object->fscache.cookie->def->check_aux);
 
 	auxbuf = kmalloc(sizeof(struct cachefiles_xattr) + 512, GFP_KERNEL);
@@ -204,7 +204,7 @@ int cachefiles_check_object_xattr(struct cachefiles_object *object,
 	_enter("%p,#%d", object, auxdata->len);
 
 	ASSERT(dentry);
-	ASSERT(dentry->d_inode);
+	ASSERT(d_backing_inode(dentry));
 
 	auxbuf = kmalloc(sizeof(struct cachefiles_xattr) + 512, cachefiles_gfp);
 	if (!auxbuf) {
@@ -225,7 +225,7 @@ int cachefiles_check_object_xattr(struct cachefiles_object *object,
 
 		cachefiles_io_error_obj(object,
 					"Can't read xattr on %lu (err %d)",
-					dentry->d_inode->i_ino, -ret);
+					d_backing_inode(dentry)->i_ino, -ret);
 		goto error;
 	}
 
@@ -276,7 +276,7 @@ int cachefiles_check_object_xattr(struct cachefiles_object *object,
 			cachefiles_io_error_obj(object,
 						"Can't update xattr on %lu"
 						" (error %d)",
-						dentry->d_inode->i_ino, -ret);
+						d_backing_inode(dentry)->i_ino, -ret);
 			goto error;
 		}
 	}
@@ -291,7 +291,7 @@ error:
 
 bad_type_length:
 	pr_err("Cache object %lu xattr length incorrect\n",
-	       dentry->d_inode->i_ino);
+	       d_backing_inode(dentry)->i_ino);
 	ret = -EIO;
 	goto error;
 
@@ -316,7 +316,7 @@ int cachefiles_remove_object_xattr(struct cachefiles_cache *cache,
 			cachefiles_io_error(cache,
 					    "Can't remove xattr from %lu"
 					    " (error %d)",
-					    dentry->d_inode->i_ino, -ret);
+					    d_backing_inode(dentry)->i_ino, -ret);
 	}
 
 	_leave(" = %d", ret);

fs/ceph/caps.c

@@ -3422,7 +3422,7 @@ int ceph_encode_inode_release(void **p, struct inode *inode,
 int ceph_encode_dentry_release(void **p, struct dentry *dentry,
 			       int mds, int drop, int unless)
 {
-	struct inode *dir = dentry->d_parent->d_inode;
+	struct inode *dir = d_inode(dentry->d_parent);
 	struct ceph_mds_request_release *rel = *p;
 	struct ceph_dentry_info *di = ceph_dentry(dentry);
 	int force = 0;

fs/ceph/debugfs.c

@@ -84,7 +84,7 @@ static int mdsc_show(struct seq_file *s, void *p)
 				path = NULL;
 			spin_lock(&req->r_dentry->d_lock);
 			seq_printf(s, " #%llx/%pd (%s)",
-				   ceph_ino(req->r_dentry->d_parent->d_inode),
+				   ceph_ino(d_inode(req->r_dentry->d_parent)),
 				   req->r_dentry,
 				   path ? path : "");
 			spin_unlock(&req->r_dentry->d_lock);

fs/ceph/dir.c

@@ -49,9 +49,9 @@ int ceph_init_dentry(struct dentry *dentry)
 		goto out_unlock;
 	}
 
-	if (ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
+	if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_NOSNAP)
 		d_set_d_op(dentry, &ceph_dentry_ops);
-	else if (ceph_snap(dentry->d_parent->d_inode) == CEPH_SNAPDIR)
+	else if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_SNAPDIR)
 		d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
 	else
 		d_set_d_op(dentry, &ceph_snap_dentry_ops);
@@ -77,7 +77,7 @@ struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry)
 
 	spin_lock(&dentry->d_lock);
 	if (!IS_ROOT(dentry)) {
-		inode = dentry->d_parent->d_inode;
+		inode = d_inode(dentry->d_parent);
 		ihold(inode);
 	}
 	spin_unlock(&dentry->d_lock);
@@ -122,7 +122,7 @@ static int __dcache_readdir(struct file *file,  struct dir_context *ctx,
 {
 	struct ceph_file_info *fi = file->private_data;
 	struct dentry *parent = file->f_path.dentry;
-	struct inode *dir = parent->d_inode;
+	struct inode *dir = d_inode(parent);
 	struct list_head *p;
 	struct dentry *dentry, *last;
 	struct ceph_dentry_info *di;
@@ -161,15 +161,15 @@ more:
 		}
 		spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
 		if (di->lease_shared_gen == shared_gen &&
-		    !d_unhashed(dentry) && dentry->d_inode &&
-		    ceph_snap(dentry->d_inode) != CEPH_SNAPDIR &&
-		    ceph_ino(dentry->d_inode) != CEPH_INO_CEPH &&
+		    !d_unhashed(dentry) && d_really_is_positive(dentry) &&
+		    ceph_snap(d_inode(dentry)) != CEPH_SNAPDIR &&
+		    ceph_ino(d_inode(dentry)) != CEPH_INO_CEPH &&
 		    fpos_cmp(ctx->pos, di->offset) <= 0)
 			break;
 		dout(" skipping %p %pd at %llu (%llu)%s%s\n", dentry,
 		     dentry, di->offset,
 		     ctx->pos, d_unhashed(dentry) ? " unhashed" : "",
-		     !dentry->d_inode ? " null" : "");
+		     !d_inode(dentry) ? " null" : "");
 		spin_unlock(&dentry->d_lock);
 		p = p->prev;
 		dentry = list_entry(p, struct dentry, d_child);
@@ -189,11 +189,11 @@ more:
 	}
 
 	dout(" %llu (%llu) dentry %p %pd %p\n", di->offset, ctx->pos,
-	     dentry, dentry, dentry->d_inode);
+	     dentry, dentry, d_inode(dentry));
 	if (!dir_emit(ctx, dentry->d_name.name,
 		      dentry->d_name.len,
-		      ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino),
-		      dentry->d_inode->i_mode >> 12)) {
+		      ceph_translate_ino(dentry->d_sb, d_inode(dentry)->i_ino),
+		      d_inode(dentry)->i_mode >> 12)) {
 		if (last) {
 			/* remember our position */
 			fi->dentry = last;
@@ -543,7 +543,7 @@ int ceph_handle_snapdir(struct ceph_mds_request *req,
 			struct dentry *dentry, int err)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
-	struct inode *parent = dentry->d_parent->d_inode; /* we hold i_mutex */
+	struct inode *parent = d_inode(dentry->d_parent); /* we hold i_mutex */
 
 	/* .snap dir? */
 	if (err == -ENOENT &&
@@ -579,8 +579,8 @@ struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
 		err = 0;
 		if (!req->r_reply_info.head->is_dentry) {
 			dout("ENOENT and no trace, dentry %p inode %p\n",
-			     dentry, dentry->d_inode);
-			if (dentry->d_inode) {
+			     dentry, d_inode(dentry));
+			if (d_really_is_positive(dentry)) {
 				d_drop(dentry);
 				err = -ENOENT;
 			} else {
@@ -627,7 +627,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry,
 		return ERR_PTR(err);
 
 	/* can we conclude ENOENT locally? */
-	if (dentry->d_inode == NULL) {
+	if (d_really_is_negative(dentry)) {
 		struct ceph_inode_info *ci = ceph_inode(dir);
 		struct ceph_dentry_info *di = ceph_dentry(dentry);
 
@@ -734,7 +734,7 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
 	ceph_mdsc_put_request(req);
 out:
 	if (!err)
-		ceph_init_inode_acls(dentry->d_inode, &acls);
+		ceph_init_inode_acls(d_inode(dentry), &acls);
 	else
 		d_drop(dentry);
 	ceph_release_acls_info(&acls);
@@ -835,7 +835,7 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	ceph_mdsc_put_request(req);
 out:
 	if (!err)
-		ceph_init_inode_acls(dentry->d_inode, &acls);
+		ceph_init_inode_acls(d_inode(dentry), &acls);
 	else
 		d_drop(dentry);
 	ceph_release_acls_info(&acls);
@@ -872,8 +872,8 @@ static int ceph_link(struct dentry *old_dentry, struct inode *dir,
 	if (err) {
 		d_drop(dentry);
 	} else if (!req->r_reply_info.head->is_dentry) {
-		ihold(old_dentry->d_inode);
-		d_instantiate(dentry, old_dentry->d_inode);
+		ihold(d_inode(old_dentry));
+		d_instantiate(dentry, d_inode(old_dentry));
 	}
 	ceph_mdsc_put_request(req);
 	return err;
@@ -906,7 +906,7 @@ static int ceph_unlink(struct inode *dir, struct dentry *dentry)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
 	struct ceph_mds_client *mdsc = fsc->mdsc;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_mds_request *req;
 	int err = -EROFS;
 	int op;
@@ -975,8 +975,8 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
 	req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
 	/* release LINK_RDCACHE on source inode (mds will lock it) */
 	req->r_old_inode_drop = CEPH_CAP_LINK_SHARED;
-	if (new_dentry->d_inode)
-		req->r_inode_drop = drop_caps_for_unlink(new_dentry->d_inode);
+	if (d_really_is_positive(new_dentry))
+		req->r_inode_drop = drop_caps_for_unlink(d_inode(new_dentry));
 	err = ceph_mdsc_do_request(mdsc, old_dir, req);
 	if (!err && !req->r_reply_info.head->is_dentry) {
 		/*
@@ -1042,7 +1042,7 @@ static int dentry_lease_is_valid(struct dentry *dentry)
 			if (di->lease_renew_after &&
 			    time_after(jiffies, di->lease_renew_after)) {
 				/* we should renew */
-				dir = dentry->d_parent->d_inode;
+				dir = d_inode(dentry->d_parent);
 				session = ceph_get_mds_session(s);
 				seq = di->lease_seq;
 				di->lease_renew_after = 0;
@@ -1092,22 +1092,22 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
 		return -ECHILD;
 
 	dout("d_revalidate %p '%pd' inode %p offset %lld\n", dentry,
-	     dentry, dentry->d_inode, ceph_dentry(dentry)->offset);
+	     dentry, d_inode(dentry), ceph_dentry(dentry)->offset);
 
 	dir = ceph_get_dentry_parent_inode(dentry);
 
 	/* always trust cached snapped dentries, snapdir dentry */
 	if (ceph_snap(dir) != CEPH_NOSNAP) {
 		dout("d_revalidate %p '%pd' inode %p is SNAPPED\n", dentry,
-		     dentry, dentry->d_inode);
+		     dentry, d_inode(dentry));
 		valid = 1;
-	} else if (dentry->d_inode &&
-		   ceph_snap(dentry->d_inode) == CEPH_SNAPDIR) {
+	} else if (d_really_is_positive(dentry) &&
+		   ceph_snap(d_inode(dentry)) == CEPH_SNAPDIR) {
 		valid = 1;
 	} else if (dentry_lease_is_valid(dentry) ||
 		   dir_lease_is_valid(dir, dentry)) {
-		if (dentry->d_inode)
-			valid = ceph_is_any_caps(dentry->d_inode);
+		if (d_really_is_positive(dentry))
+			valid = ceph_is_any_caps(d_inode(dentry));
 		else
 			valid = 1;
 	}
@@ -1169,7 +1169,7 @@ static void ceph_d_prune(struct dentry *dentry)
 	 * we hold d_lock, so d_parent is stable, and d_fsdata is never
 	 * cleared until d_release
 	 */
-	ceph_dir_clear_complete(dentry->d_parent->d_inode);
+	ceph_dir_clear_complete(d_inode(dentry->d_parent));
 }
 
 /*

fs/ceph/export.c

@@ -136,8 +136,8 @@ static struct dentry *__get_parent(struct super_block *sb,
 		return ERR_CAST(req);
 
 	if (child) {
-		req->r_inode = child->d_inode;
-		ihold(child->d_inode);
+		req->r_inode = d_inode(child);
+		ihold(d_inode(child));
 	} else {
 		req->r_ino1 = (struct ceph_vino) {
 			.ino = ino,
@@ -164,7 +164,7 @@ static struct dentry *__get_parent(struct super_block *sb,
 		return ERR_PTR(err);
 	}
 	dout("__get_parent ino %llx parent %p ino %llx.%llx\n",
-	     child ? ceph_ino(child->d_inode) : ino,
+	     child ? ceph_ino(d_inode(child)) : ino,
 	     dentry, ceph_vinop(inode));
 	return dentry;
 }
@@ -172,11 +172,11 @@ static struct dentry *__get_parent(struct super_block *sb,
 static struct dentry *ceph_get_parent(struct dentry *child)
 {
 	/* don't re-export snaps */
-	if (ceph_snap(child->d_inode) != CEPH_NOSNAP)
+	if (ceph_snap(d_inode(child)) != CEPH_NOSNAP)
 		return ERR_PTR(-EINVAL);
 
 	dout("get_parent %p ino %llx.%llx\n",
-	     child, ceph_vinop(child->d_inode));
+	     child, ceph_vinop(d_inode(child)));
 	return __get_parent(child->d_sb, child, 0);
 }
 
@@ -209,32 +209,32 @@ static int ceph_get_name(struct dentry *parent, char *name,
 	struct ceph_mds_request *req;
 	int err;
 
-	mdsc = ceph_inode_to_client(child->d_inode)->mdsc;
+	mdsc = ceph_inode_to_client(d_inode(child))->mdsc;
 	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_LOOKUPNAME,
 				       USE_ANY_MDS);
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 
-	req->r_inode = child->d_inode;
-	ihold(child->d_inode);
-	req->r_ino2 = ceph_vino(parent->d_inode);
-	req->r_locked_dir = parent->d_inode;
+	req->r_inode = d_inode(child);
+	ihold(d_inode(child));
+	req->r_ino2 = ceph_vino(d_inode(parent));
+	req->r_locked_dir = d_inode(parent);
 	req->r_num_caps = 2;
 	err = ceph_mdsc_do_request(mdsc, NULL, req);
 
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 
 	if (!err) {
 		struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info;
 		memcpy(name, rinfo->dname, rinfo->dname_len);
 		name[rinfo->dname_len] = 0;
 		dout("get_name %p ino %llx.%llx name %s\n",
-		     child, ceph_vinop(child->d_inode), name);
+		     child, ceph_vinop(d_inode(child)), name);
 	} else {
 		dout("get_name %p ino %llx.%llx err %d\n",
-		     child, ceph_vinop(child->d_inode), err);
+		     child, ceph_vinop(d_inode(child)), err);
 	}
 
 	ceph_mdsc_put_request(req);

fs/ceph/file.c

@@ -291,14 +291,14 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
 	}
 	if (err)
 		goto out_req;
-	if (dn || dentry->d_inode == NULL || d_is_symlink(dentry)) {
+	if (dn || d_really_is_negative(dentry) || d_is_symlink(dentry)) {
 		/* make vfs retry on splice, ENOENT, or symlink */
 		dout("atomic_open finish_no_open on dn %p\n", dn);
 		err = finish_no_open(file, dn);
 	} else {
 		dout("atomic_open finish_open on dn %p\n", dn);
 		if (req->r_op == CEPH_MDS_OP_CREATE && req->r_reply_info.has_create_ino) {
-			ceph_init_inode_acls(dentry->d_inode, &acls);
+			ceph_init_inode_acls(d_inode(dentry), &acls);
 			*opened |= FILE_CREATED;
 		}
 		err = finish_open(file, dentry, ceph_open, opened);

fs/ceph/inode.c

@@ -940,7 +940,7 @@ static void update_dentry_lease(struct dentry *dentry,
 	     dentry, duration, ttl);
 
 	/* make lease_rdcache_gen match directory */
-	dir = dentry->d_parent->d_inode;
+	dir = d_inode(dentry->d_parent);
 	di->lease_shared_gen = ceph_inode(dir)->i_shared_gen;
 
 	if (duration == 0)
@@ -980,7 +980,7 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
 {
 	struct dentry *realdn;
 
-	BUG_ON(dn->d_inode);
+	BUG_ON(d_inode(dn));
 
 	/* dn must be unhashed */
 	if (!d_unhashed(dn))
@@ -998,13 +998,13 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
 		     "inode %p ino %llx.%llx\n",
 		     dn, d_count(dn),
 		     realdn, d_count(realdn),
-		     realdn->d_inode, ceph_vinop(realdn->d_inode));
+		     d_inode(realdn), ceph_vinop(d_inode(realdn)));
 		dput(dn);
 		dn = realdn;
 	} else {
 		BUG_ON(!ceph_dentry(dn));
 		dout("dn %p attached to %p ino %llx.%llx\n",
-		     dn, dn->d_inode, ceph_vinop(dn->d_inode));
+		     dn, d_inode(dn), ceph_vinop(d_inode(dn)));
 	}
 	if ((!prehash || *prehash) && d_unhashed(dn))
 		d_rehash(dn);
@@ -1125,11 +1125,11 @@ retry_lookup:
 					dput(parent);
 					goto done;
 				}
-			} else if (dn->d_inode &&
-				   (ceph_ino(dn->d_inode) != vino.ino ||
-				    ceph_snap(dn->d_inode) != vino.snap)) {
+			} else if (d_really_is_positive(dn) &&
+				   (ceph_ino(d_inode(dn)) != vino.ino ||
+				    ceph_snap(d_inode(dn)) != vino.snap)) {
 				dout(" dn %p points to wrong inode %p\n",
-				     dn, dn->d_inode);
+				     dn, d_inode(dn));
 				d_delete(dn);
 				dput(dn);
 				goto retry_lookup;
@@ -1183,7 +1183,7 @@ retry_lookup:
 
 		BUG_ON(!dn);
 		BUG_ON(!dir);
-		BUG_ON(dn->d_parent->d_inode != dir);
+		BUG_ON(d_inode(dn->d_parent) != dir);
 		BUG_ON(ceph_ino(dir) !=
 		       le64_to_cpu(rinfo->diri.in->ino));
 		BUG_ON(ceph_snap(dir) !=
@@ -1235,7 +1235,7 @@ retry_lookup:
 		/* null dentry? */
 		if (!rinfo->head->is_target) {
 			dout("fill_trace null dentry\n");
-			if (dn->d_inode) {
+			if (d_really_is_positive(dn)) {
 				ceph_dir_clear_ordered(dir);
 				dout("d_delete %p\n", dn);
 				d_delete(dn);
@@ -1252,7 +1252,7 @@ retry_lookup:
 		}
 
 		/* attach proper inode */
-		if (!dn->d_inode) {
+		if (d_really_is_negative(dn)) {
 			ceph_dir_clear_ordered(dir);
 			ihold(in);
 			dn = splice_dentry(dn, in, &have_lease);
@@ -1261,9 +1261,9 @@ retry_lookup:
 				goto done;
 			}
 			req->r_dentry = dn;  /* may have spliced */
-		} else if (dn->d_inode && dn->d_inode != in) {
+		} else if (d_really_is_positive(dn) && d_inode(dn) != in) {
 			dout(" %p links to %p %llx.%llx, not %llx.%llx\n",
-			     dn, dn->d_inode, ceph_vinop(dn->d_inode),
+			     dn, d_inode(dn), ceph_vinop(d_inode(dn)),
 			     ceph_vinop(in));
 			have_lease = false;
 		}
@@ -1363,7 +1363,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
 		return readdir_prepopulate_inodes_only(req, session);
 
 	if (le32_to_cpu(rinfo->head->op) == CEPH_MDS_OP_LSSNAP) {
-		snapdir = ceph_get_snapdir(parent->d_inode);
+		snapdir = ceph_get_snapdir(d_inode(parent));
 		parent = d_find_alias(snapdir);
 		dout("readdir_prepopulate %d items under SNAPDIR dn %p\n",
 		     rinfo->dir_nr, parent);
@@ -1371,7 +1371,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
 		dout("readdir_prepopulate %d items under dn %p\n",
 		     rinfo->dir_nr, parent);
 		if (rinfo->dir_dir)
-			ceph_fill_dirfrag(parent->d_inode, rinfo->dir_dir);
+			ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir);
 	}
 
 	/* FIXME: release caps/leases if error occurs */
@@ -1405,11 +1405,11 @@ retry_lookup:
 				err = ret;
 				goto out;
 			}
-		} else if (dn->d_inode &&
-			   (ceph_ino(dn->d_inode) != vino.ino ||
-			    ceph_snap(dn->d_inode) != vino.snap)) {
+		} else if (d_really_is_positive(dn) &&
+			   (ceph_ino(d_inode(dn)) != vino.ino ||
+			    ceph_snap(d_inode(dn)) != vino.snap)) {
 			dout(" dn %p points to wrong inode %p\n",
-			     dn, dn->d_inode);
+			     dn, d_inode(dn));
 			d_delete(dn);
 			dput(dn);
 			goto retry_lookup;
@@ -1423,8 +1423,8 @@ retry_lookup:
 		}
 
 		/* inode */
-		if (dn->d_inode) {
-			in = dn->d_inode;
+		if (d_really_is_positive(dn)) {
+			in = d_inode(dn);
 		} else {
 			in = ceph_get_inode(parent->d_sb, vino);
 			if (IS_ERR(in)) {
@@ -1440,13 +1440,13 @@ retry_lookup:
 			       req->r_request_started, -1,
 			       &req->r_caps_reservation) < 0) {
 			pr_err("fill_inode badness on %p\n", in);
-			if (!dn->d_inode)
+			if (d_really_is_negative(dn))
 				iput(in);
 			d_drop(dn);
 			goto next_item;
 		}
 
-		if (!dn->d_inode) {
+		if (d_really_is_negative(dn)) {
 			struct dentry *realdn = splice_dentry(dn, in, NULL);
 			if (IS_ERR(realdn)) {
 				err = PTR_ERR(realdn);
@@ -1693,7 +1693,7 @@ retry:
  */
 static void *ceph_sym_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-	struct ceph_inode_info *ci = ceph_inode(dentry->d_inode);
+	struct ceph_inode_info *ci = ceph_inode(d_inode(dentry));
 	nd_set_link(nd, ci->i_symlink);
 	return NULL;
 }
@@ -1714,7 +1714,7 @@ static const struct inode_operations ceph_symlink_iops = {
  */
 int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	const unsigned int ia_valid = attr->ia_valid;
 	struct ceph_mds_request *req;
@@ -1990,7 +1990,7 @@ int ceph_permission(struct inode *inode, int mask)
 int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
 		 struct kstat *stat)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	int err;
 

fs/ceph/mds_client.c

@@ -679,7 +679,7 @@ static struct dentry *get_nonsnap_parent(struct dentry *dentry)
 	 * except to resplice to another snapdir, and either the old or new
 	 * result is a valid result.
 	 */
-	while (!IS_ROOT(dentry) && ceph_snap(dentry->d_inode) != CEPH_NOSNAP)
+	while (!IS_ROOT(dentry) && ceph_snap(d_inode(dentry)) != CEPH_NOSNAP)
 		dentry = dentry->d_parent;
 	return dentry;
 }
@@ -716,20 +716,20 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
 	} else if (req->r_dentry) {
 		/* ignore race with rename; old or new d_parent is okay */
 		struct dentry *parent = req->r_dentry->d_parent;
-		struct inode *dir = parent->d_inode;
+		struct inode *dir = d_inode(parent);
 
 		if (dir->i_sb != mdsc->fsc->sb) {
 			/* not this fs! */
-			inode = req->r_dentry->d_inode;
+			inode = d_inode(req->r_dentry);
 		} else if (ceph_snap(dir) != CEPH_NOSNAP) {
 			/* direct snapped/virtual snapdir requests
 			 * based on parent dir inode */
 			struct dentry *dn = get_nonsnap_parent(parent);
-			inode = dn->d_inode;
+			inode = d_inode(dn);
 			dout("__choose_mds using nonsnap parent %p\n", inode);
 		} else {
 			/* dentry target */
-			inode = req->r_dentry->d_inode;
+			inode = d_inode(req->r_dentry);
 			if (!inode || mode == USE_AUTH_MDS) {
 				/* dir + name */
 				inode = dir;
@@ -1732,7 +1732,7 @@ retry:
 	seq = read_seqbegin(&rename_lock);
 	rcu_read_lock();
 	for (temp = dentry; !IS_ROOT(temp);) {
-		struct inode *inode = temp->d_inode;
+		struct inode *inode = d_inode(temp);
 		if (inode && ceph_snap(inode) == CEPH_SNAPDIR)
 			len++;  /* slash only */
 		else if (stop_on_nosnap && inode &&
@@ -1756,7 +1756,7 @@ retry:
 		struct inode *inode;
 
 		spin_lock(&temp->d_lock);
-		inode = temp->d_inode;
+		inode = d_inode(temp);
 		if (inode && ceph_snap(inode) == CEPH_SNAPDIR) {
 			dout("build_path path+%d: %p SNAPDIR\n",
 			     pos, temp);
@@ -1790,7 +1790,7 @@ retry:
 		goto retry;
 	}
 
-	*base = ceph_ino(temp->d_inode);
+	*base = ceph_ino(d_inode(temp));
 	*plen = len;
 	dout("build_path on %p %d built %llx '%.*s'\n",
 	     dentry, d_count(dentry), *base, len, path);
@@ -1803,8 +1803,8 @@ static int build_dentry_path(struct dentry *dentry,
 {
 	char *path;
 
-	if (ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP) {
-		*pino = ceph_ino(dentry->d_parent->d_inode);
+	if (ceph_snap(d_inode(dentry->d_parent)) == CEPH_NOSNAP) {
+		*pino = ceph_ino(d_inode(dentry->d_parent));
 		*ppath = dentry->d_name.name;
 		*ppathlen = dentry->d_name.len;
 		return 0;
@@ -1945,7 +1945,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
 	releases = 0;
 	if (req->r_inode_drop)
 		releases += ceph_encode_inode_release(&p,
-		      req->r_inode ? req->r_inode : req->r_dentry->d_inode,
+		      req->r_inode ? req->r_inode : d_inode(req->r_dentry),
 		      mds, req->r_inode_drop, req->r_inode_unless, 0);
 	if (req->r_dentry_drop)
 		releases += ceph_encode_dentry_release(&p, req->r_dentry,
@@ -1955,7 +1955,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc,
 		       mds, req->r_old_dentry_drop, req->r_old_dentry_unless);
 	if (req->r_old_inode_drop)
 		releases += ceph_encode_inode_release(&p,
-		      req->r_old_dentry->d_inode,
+		      d_inode(req->r_old_dentry),
 		      mds, req->r_old_inode_drop, req->r_old_inode_unless, 0);
 
 	if (drop_cap_releases) {

fs/ceph/super.c

@@ -44,7 +44,7 @@ static void ceph_put_super(struct super_block *s)
 
 static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
-	struct ceph_fs_client *fsc = ceph_inode_to_client(dentry->d_inode);
+	struct ceph_fs_client *fsc = ceph_inode_to_client(d_inode(dentry));
 	struct ceph_monmap *monmap = fsc->client->monc.monmap;
 	struct ceph_statfs st;
 	u64 fsid;
@@ -972,7 +972,7 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type,
 	if (IS_ERR(res))
 		goto out_splat;
 	dout("root %p inode %p ino %llx.%llx\n", res,
-	     res->d_inode, ceph_vinop(res->d_inode));
+	     d_inode(res), ceph_vinop(d_inode(res)));
 	return res;
 
 out_splat:

fs/ceph/xattr.c

@@ -776,12 +776,12 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
 	if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
 		return generic_getxattr(dentry, name, value, size);
 
-	return __ceph_getxattr(dentry->d_inode, name, value, size);
+	return __ceph_getxattr(d_inode(dentry), name, value, size);
 }
 
 ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_vxattr *vxattrs = ceph_inode_vxattrs(inode);
 	u32 vir_namelen = 0;
@@ -847,7 +847,7 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
 			      const char *value, size_t size, int flags)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_mds_request *req;
 	struct ceph_mds_client *mdsc = fsc->mdsc;
@@ -908,7 +908,7 @@ out:
 int __ceph_setxattr(struct dentry *dentry, const char *name,
 			const void *value, size_t size, int flags)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_vxattr *vxattr;
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	int issued;
@@ -1002,7 +1002,7 @@ out:
 int ceph_setxattr(struct dentry *dentry, const char *name,
 		  const void *value, size_t size, int flags)
 {
-	if (ceph_snap(dentry->d_inode) != CEPH_NOSNAP)
+	if (ceph_snap(d_inode(dentry)) != CEPH_NOSNAP)
 		return -EROFS;
 
 	if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
@@ -1018,7 +1018,7 @@ static int ceph_send_removexattr(struct dentry *dentry, const char *name)
 {
 	struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
 	struct ceph_mds_client *mdsc = fsc->mdsc;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_mds_request *req;
 	int err;
 
@@ -1041,7 +1041,7 @@ static int ceph_send_removexattr(struct dentry *dentry, const char *name)
 
 int __ceph_removexattr(struct dentry *dentry, const char *name)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ceph_vxattr *vxattr;
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	int issued;
@@ -1107,7 +1107,7 @@ out:
 
 int ceph_removexattr(struct dentry *dentry, const char *name)
 {
-	if (ceph_snap(dentry->d_inode) != CEPH_NOSNAP)
+	if (ceph_snap(d_inode(dentry)) != CEPH_NOSNAP)
 		return -EROFS;
 
 	if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))

fs/cifs/cifs_dfs_ref.c

@@ -301,7 +301,7 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
 	if (full_path == NULL)
 		goto cdda_exit;
 
-	cifs_sb = CIFS_SB(mntpt->d_inode->i_sb);
+	cifs_sb = CIFS_SB(d_inode(mntpt)->i_sb);
 	tlink = cifs_sb_tlink(cifs_sb);
 	if (IS_ERR(tlink)) {
 		mnt = ERR_CAST(tlink);

fs/cifs/cifsfs.c

@@ -607,7 +607,7 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
 	p = s = full_path;
 
 	do {
-		struct inode *dir = dentry->d_inode;
+		struct inode *dir = d_inode(dentry);
 		struct dentry *child;
 
 		if (!dir) {

fs/cifs/cifssmb.c

@@ -1898,7 +1898,7 @@ static void
 cifs_writev_requeue(struct cifs_writedata *wdata)
 {
 	int i, rc = 0;
-	struct inode *inode = wdata->cfile->dentry->d_inode;
+	struct inode *inode = d_inode(wdata->cfile->dentry);
 	struct TCP_Server_Info *server;
 	unsigned int rest_len;
 
@@ -1981,7 +1981,7 @@ cifs_writev_complete(struct work_struct *work)
 {
 	struct cifs_writedata *wdata = container_of(work,
 						struct cifs_writedata, work);
-	struct inode *inode = wdata->cfile->dentry->d_inode;
+	struct inode *inode = d_inode(wdata->cfile->dentry);
 	int i = 0;
 
 	if (wdata->result == 0) {

fs/cifs/dir.c

@@ -745,13 +745,13 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 		goto lookup_out;
 	}
 
-	if (direntry->d_inode != NULL) {
+	if (d_really_is_positive(direntry)) {
 		cifs_dbg(FYI, "non-NULL inode in lookup\n");
 	} else {
 		cifs_dbg(FYI, "NULL inode in lookup\n");
 	}
 	cifs_dbg(FYI, "Full path: %s inode = 0x%p\n",
-		 full_path, direntry->d_inode);
+		 full_path, d_inode(direntry));
 
 	if (pTcon->unix_ext) {
 		rc = cifs_get_inode_info_unix(&newInode, full_path,
@@ -792,7 +792,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	if (direntry->d_inode) {
+	if (d_really_is_positive(direntry)) {
 		if (cifs_revalidate_dentry(direntry))
 			return 0;
 		else {
@@ -803,7 +803,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
 			 * attributes will have been updated by
 			 * cifs_revalidate_dentry().
 			 */
-			if (IS_AUTOMOUNT(direntry->d_inode) &&
+			if (IS_AUTOMOUNT(d_inode(direntry)) &&
 			   !(direntry->d_flags & DCACHE_NEED_AUTOMOUNT)) {
 				spin_lock(&direntry->d_lock);
 				direntry->d_flags |= DCACHE_NEED_AUTOMOUNT;

fs/cifs/file.c

@@ -273,7 +273,7 @@ cifs_new_fileinfo(struct cifs_fid *fid, struct file *file,
 		  struct tcon_link *tlink, __u32 oplock)
 {
 	struct dentry *dentry = file->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct cifsInodeInfo *cinode = CIFS_I(inode);
 	struct cifsFileInfo *cfile;
 	struct cifs_fid_locks *fdlocks;
@@ -357,7 +357,7 @@ cifsFileInfo_get(struct cifsFileInfo *cifs_file)
  */
 void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
 {
-	struct inode *inode = cifs_file->dentry->d_inode;
+	struct inode *inode = d_inode(cifs_file->dentry);
 	struct cifs_tcon *tcon = tlink_tcon(cifs_file->tlink);
 	struct TCP_Server_Info *server = tcon->ses->server;
 	struct cifsInodeInfo *cifsi = CIFS_I(inode);
@@ -386,7 +386,7 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
 
 	if (list_empty(&cifsi->openFileList)) {
 		cifs_dbg(FYI, "closing last open instance for inode %p\n",
-			 cifs_file->dentry->d_inode);
+			 d_inode(cifs_file->dentry));
 		/*
 		 * In strict cache mode we need invalidate mapping on the last
 		 * close  because it may cause a error when we open this file
@@ -572,7 +572,7 @@ static int
 cifs_relock_file(struct cifsFileInfo *cfile)
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(cfile->dentry->d_sb);
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	int rc = 0;
 
@@ -620,7 +620,7 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
 		return rc;
 	}
 
-	inode = cfile->dentry->d_inode;
+	inode = d_inode(cfile->dentry);
 	cifs_sb = CIFS_SB(inode->i_sb);
 	tcon = tlink_tcon(cfile->tlink);
 	server = tcon->ses->server;
@@ -874,7 +874,7 @@ cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset, __u64 length,
 {
 	bool rc = false;
 	struct cifs_fid_locks *cur;
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 
 	list_for_each_entry(cur, &cinode->llist, llist) {
 		rc = cifs_find_fid_lock_conflict(cur, offset, length, type,
@@ -899,7 +899,7 @@ cifs_lock_test(struct cifsFileInfo *cfile, __u64 offset, __u64 length,
 {
 	int rc = 0;
 	struct cifsLockInfo *conf_lock;
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
 	bool exist;
 
@@ -927,7 +927,7 @@ cifs_lock_test(struct cifsFileInfo *cfile, __u64 offset, __u64 length,
 static void
 cifs_lock_add(struct cifsFileInfo *cfile, struct cifsLockInfo *lock)
 {
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	down_write(&cinode->lock_sem);
 	list_add_tail(&lock->llist, &cfile->llist->locks);
 	up_write(&cinode->lock_sem);
@@ -944,7 +944,7 @@ cifs_lock_add_if(struct cifsFileInfo *cfile, struct cifsLockInfo *lock,
 		 bool wait)
 {
 	struct cifsLockInfo *conf_lock;
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	bool exist;
 	int rc = 0;
 
@@ -1125,7 +1125,7 @@ struct lock_to_push {
 static int
 cifs_push_posix_locks(struct cifsFileInfo *cfile)
 {
-	struct inode *inode = cfile->dentry->d_inode;
+	struct inode *inode = d_inode(cfile->dentry);
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	struct file_lock *flock;
 	struct file_lock_context *flctx = inode->i_flctx;
@@ -1214,7 +1214,7 @@ static int
 cifs_push_locks(struct cifsFileInfo *cfile)
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(cfile->dentry->d_sb);
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	int rc = 0;
 
@@ -1382,7 +1382,7 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 	unsigned int max_num, num, max_buf;
 	LOCKING_ANDX_RANGE *buf, *cur;
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct cifsLockInfo *li, *tmp;
 	__u64 length = 1 + flock->fl_end - flock->fl_start;
 	struct list_head tmp_llist;
@@ -1488,7 +1488,7 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type,
 	struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	struct TCP_Server_Info *server = tcon->ses->server;
-	struct inode *inode = cfile->dentry->d_inode;
+	struct inode *inode = d_inode(cfile->dentry);
 
 	if (posix_lck) {
 		int posix_lock_type;
@@ -1643,7 +1643,7 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
 	struct TCP_Server_Info *server;
 	unsigned int xid;
 	struct dentry *dentry = open_file->dentry;
-	struct cifsInodeInfo *cifsi = CIFS_I(dentry->d_inode);
+	struct cifsInodeInfo *cifsi = CIFS_I(d_inode(dentry));
 	struct cifs_io_parms io_parms;
 
 	cifs_sb = CIFS_SB(dentry->d_sb);
@@ -1676,7 +1676,7 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
 					break;
 			}
 
-			len = min(server->ops->wp_retry_size(dentry->d_inode),
+			len = min(server->ops->wp_retry_size(d_inode(dentry)),
 				  (unsigned int)write_size - total_written);
 			/* iov[0] is reserved for smb header */
 			iov[1].iov_base = (char *)write_data + total_written;
@@ -1696,9 +1696,9 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
 				return rc;
 			}
 		} else {
-			spin_lock(&dentry->d_inode->i_lock);
+			spin_lock(&d_inode(dentry)->i_lock);
 			cifs_update_eof(cifsi, *offset, bytes_written);
-			spin_unlock(&dentry->d_inode->i_lock);
+			spin_unlock(&d_inode(dentry)->i_lock);
 			*offset += bytes_written;
 		}
 	}
@@ -1706,12 +1706,12 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
 	cifs_stats_bytes_written(tcon, total_written);
 
 	if (total_written > 0) {
-		spin_lock(&dentry->d_inode->i_lock);
-		if (*offset > dentry->d_inode->i_size)
-			i_size_write(dentry->d_inode, *offset);
-		spin_unlock(&dentry->d_inode->i_lock);
+		spin_lock(&d_inode(dentry)->i_lock);
+		if (*offset > d_inode(dentry)->i_size)
+			i_size_write(d_inode(dentry), *offset);
+		spin_unlock(&d_inode(dentry)->i_lock);
 	}
-	mark_inode_dirty_sync(dentry->d_inode);
+	mark_inode_dirty_sync(d_inode(dentry));
 	free_xid(xid);
 	return total_written;
 }
@@ -2406,7 +2406,7 @@ cifs_uncached_writev_complete(struct work_struct *work)
 {
 	struct cifs_writedata *wdata = container_of(work,
 					struct cifs_writedata, work);
-	struct inode *inode = wdata->cfile->dentry->d_inode;
+	struct inode *inode = d_inode(wdata->cfile->dentry);
 	struct cifsInodeInfo *cifsi = CIFS_I(inode);
 
 	spin_lock(&inode->i_lock);
@@ -3794,7 +3794,7 @@ void cifs_oplock_break(struct work_struct *work)
 {
 	struct cifsFileInfo *cfile = container_of(work, struct cifsFileInfo,
 						  oplock_break);
-	struct inode *inode = cfile->dentry->d_inode;
+	struct inode *inode = d_inode(cfile->dentry);
 	struct cifsInodeInfo *cinode = CIFS_I(inode);
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
 	struct TCP_Server_Info *server = tcon->ses->server;

fs/cifs/inode.c

@@ -1067,7 +1067,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry,
 	int rc;
 	struct cifs_fid fid;
 	struct cifs_open_parms oparms;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct tcon_link *tlink;
@@ -1196,7 +1196,7 @@ cifs_drop_nlink(struct inode *inode)
 }
 
 /*
- * If dentry->d_inode is null (usually meaning the cached dentry
+ * If d_inode(dentry) is null (usually meaning the cached dentry
  * is a negative dentry) then we would attempt a standard SMB delete, but
  * if that fails we can not attempt the fall back mechanisms on EACCESS
  * but will return the EACCESS to the caller. Note that the VFS does not call
@@ -1207,7 +1207,7 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)
 	int rc = 0;
 	unsigned int xid;
 	char *full_path = NULL;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct cifsInodeInfo *cifs_inode;
 	struct super_block *sb = dir->i_sb;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
@@ -1551,13 +1551,13 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
 	cifs_put_tlink(tlink);
 
 	if (!rc) {
-		spin_lock(&direntry->d_inode->i_lock);
-		i_size_write(direntry->d_inode, 0);
-		clear_nlink(direntry->d_inode);
-		spin_unlock(&direntry->d_inode->i_lock);
+		spin_lock(&d_inode(direntry)->i_lock);
+		i_size_write(d_inode(direntry), 0);
+		clear_nlink(d_inode(direntry));
+		spin_unlock(&d_inode(direntry)->i_lock);
 	}
 
-	cifsInode = CIFS_I(direntry->d_inode);
+	cifsInode = CIFS_I(d_inode(direntry));
 	/* force revalidate to go get info when needed */
 	cifsInode->time = 0;
 
@@ -1568,7 +1568,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
 	 */
 	cifsInode->time = 0;
 
-	direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime =
+	d_inode(direntry)->i_ctime = inode->i_ctime = inode->i_mtime =
 		current_fs_time(inode->i_sb);
 
 rmdir_exit:
@@ -1727,7 +1727,7 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
 
 unlink_target:
 	/* Try unlinking the target dentry if it's not negative */
-	if (target_dentry->d_inode && (rc == -EACCES || rc == -EEXIST)) {
+	if (d_really_is_positive(target_dentry) && (rc == -EACCES || rc == -EEXIST)) {
 		if (d_is_dir(target_dentry))
 			tmprc = cifs_rmdir(target_dir, target_dentry);
 		else
@@ -1867,7 +1867,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)
 {
 	unsigned int xid;
 	int rc = 0;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct super_block *sb = dentry->d_sb;
 	char *full_path = NULL;
 
@@ -1919,7 +1919,7 @@ int cifs_revalidate_file(struct file *filp)
 int cifs_revalidate_dentry(struct dentry *dentry)
 {
 	int rc;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 
 	rc = cifs_revalidate_dentry_attr(dentry);
 	if (rc)
@@ -1933,7 +1933,7 @@ int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(dentry->d_sb);
 	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	int rc;
 
 	/*
@@ -2110,7 +2110,7 @@ cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
 	int rc;
 	unsigned int xid;
 	char *full_path = NULL;
-	struct inode *inode = direntry->d_inode;
+	struct inode *inode = d_inode(direntry);
 	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct tcon_link *tlink;
@@ -2251,7 +2251,7 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
 	unsigned int xid;
 	kuid_t uid = INVALID_UID;
 	kgid_t gid = INVALID_GID;
-	struct inode *inode = direntry->d_inode;
+	struct inode *inode = d_inode(direntry);
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
 	char *full_path = NULL;
@@ -2409,7 +2409,7 @@ cifs_setattr_exit:
 int
 cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 {
-	struct inode *inode = direntry->d_inode;
+	struct inode *inode = d_inode(direntry);
 	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
 	struct cifs_tcon *pTcon = cifs_sb_master_tcon(cifs_sb);
 

fs/cifs/link.c

@@ -586,12 +586,12 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
 	 * if source file is cached (oplocked) revalidate will not go to server
 	 * until the file is closed or oplock broken so update nlinks locally
 	 */
-	if (old_file->d_inode) {
-		cifsInode = CIFS_I(old_file->d_inode);
+	if (d_really_is_positive(old_file)) {
+		cifsInode = CIFS_I(d_inode(old_file));
 		if (rc == 0) {
-			spin_lock(&old_file->d_inode->i_lock);
-			inc_nlink(old_file->d_inode);
-			spin_unlock(&old_file->d_inode->i_lock);
+			spin_lock(&d_inode(old_file)->i_lock);
+			inc_nlink(d_inode(old_file));
+			spin_unlock(&d_inode(old_file)->i_lock);
 
 			/*
 			 * parent dir timestamps will update from srv within a
@@ -629,7 +629,7 @@ cifs_hl_exit:
 void *
 cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
 {
-	struct inode *inode = direntry->d_inode;
+	struct inode *inode = d_inode(direntry);
 	int rc = -ENOMEM;
 	unsigned int xid;
 	char *full_path = NULL;

fs/cifs/misc.c

@@ -473,7 +473,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
 					continue;
 
 				cifs_dbg(FYI, "file id match, oplock break\n");
-				pCifsInode = CIFS_I(netfile->dentry->d_inode);
+				pCifsInode = CIFS_I(d_inode(netfile->dentry));
 
 				set_bit(CIFS_INODE_PENDING_OPLOCK_BREAK,
 					&pCifsInode->flags);

fs/cifs/readdir.c

@@ -78,7 +78,7 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
 {
 	struct dentry *dentry, *alias;
 	struct inode *inode;
-	struct super_block *sb = parent->d_inode->i_sb;
+	struct super_block *sb = d_inode(parent)->i_sb;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
 
 	cifs_dbg(FYI, "%s: for %s\n", __func__, name->name);
@@ -88,7 +88,7 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
 		return;
 
 	if (dentry) {
-		inode = dentry->d_inode;
+		inode = d_inode(dentry);
 		if (inode) {
 			/*
 			 * If we're generating inode numbers, then we don't

fs/cifs/smb1ops.c

@@ -722,7 +722,7 @@ cifs_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
 static void
 cifs_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
 {
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	cfile->fid.netfid = fid->netfid;
 	cifs_set_oplock_level(cinode, oplock);
 	cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);

fs/cifs/smb2file.c

@@ -95,7 +95,7 @@ smb2_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 	unsigned int max_num, num = 0, max_buf;
 	struct smb2_lock_element *buf, *cur;
 	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct cifsLockInfo *li, *tmp;
 	__u64 length = 1 + flock->fl_end - flock->fl_start;
 	struct list_head tmp_llist;
@@ -231,7 +231,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
 	unsigned int xid;
 	unsigned int max_num, max_buf;
 	struct smb2_lock_element *buf;
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct cifs_fid_locks *fdlocks;
 
 	xid = get_xid();

fs/cifs/smb2misc.c

@@ -453,7 +453,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
 
 	list_for_each(tmp, &tcon->openFileList) {
 		cfile = list_entry(tmp, struct cifsFileInfo, tlist);
-		cinode = CIFS_I(cfile->dentry->d_inode);
+		cinode = CIFS_I(d_inode(cfile->dentry));
 
 		if (memcmp(cinode->lease_key, rsp->LeaseKey,
 							SMB2_LEASE_KEY_SIZE))
@@ -590,7 +590,7 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
 					continue;
 
 				cifs_dbg(FYI, "file id match, oplock break\n");
-				cinode = CIFS_I(cfile->dentry->d_inode);
+				cinode = CIFS_I(d_inode(cfile->dentry));
 
 				if (!CIFS_CACHE_WRITE(cinode) &&
 				    rsp->OplockLevel == SMB2_OPLOCK_LEVEL_NONE)

fs/cifs/smb2ops.c

@@ -524,7 +524,7 @@ smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
 static void
 smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
 {
-	struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+	struct cifsInodeInfo *cinode = CIFS_I(d_inode(cfile->dentry));
 	struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
 
 	cfile->fid.persistent_fid = fid->persistent_fid;
@@ -793,7 +793,7 @@ smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
 	 * If extending file more than one page make sparse. Many Linux fs
 	 * make files sparse by default when extending via ftruncate
 	 */
-	inode = cfile->dentry->d_inode;
+	inode = d_inode(cfile->dentry);
 
 	if (!set_alloc && (size > inode->i_size + 8192)) {
 		__u8 set_sparse = 1;
@@ -1032,7 +1032,7 @@ static long smb3_zero_range(struct file *file, struct cifs_tcon *tcon,
 
 	xid = get_xid();
 
-	inode = cfile->dentry->d_inode;
+	inode = d_inode(cfile->dentry);
 	cifsi = CIFS_I(inode);
 
 	/* if file not oplocked can't be sure whether asking to extend size */
@@ -1083,7 +1083,7 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
 
 	xid = get_xid();
 
-	inode = cfile->dentry->d_inode;
+	inode = d_inode(cfile->dentry);
 	cifsi = CIFS_I(inode);
 
 	/* Need to make file sparse, if not already, before freeing range. */
@@ -1115,7 +1115,7 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon,
 
 	xid = get_xid();
 
-	inode = cfile->dentry->d_inode;
+	inode = d_inode(cfile->dentry);
 	cifsi = CIFS_I(inode);
 
 	/* if file not oplocked can't be sure whether asking to extend size */

fs/cifs/xattr.c

@@ -50,9 +50,9 @@ int cifs_removexattr(struct dentry *direntry, const char *ea_name)
 
 	if (direntry == NULL)
 		return -EIO;
-	if (direntry->d_inode == NULL)
+	if (d_really_is_negative(direntry))
 		return -EIO;
-	sb = direntry->d_inode->i_sb;
+	sb = d_inode(direntry)->i_sb;
 	if (sb == NULL)
 		return -EIO;
 
@@ -111,9 +111,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
 
 	if (direntry == NULL)
 		return -EIO;
-	if (direntry->d_inode == NULL)
+	if (d_really_is_negative(direntry))
 		return -EIO;
-	sb = direntry->d_inode->i_sb;
+	sb = d_inode(direntry)->i_sb;
 	if (sb == NULL)
 		return -EIO;
 
@@ -177,12 +177,12 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name,
 			memcpy(pacl, ea_value, value_size);
 			if (pTcon->ses->server->ops->set_acl)
 				rc = pTcon->ses->server->ops->set_acl(pacl,
-						value_size, direntry->d_inode,
+						value_size, d_inode(direntry),
 						full_path, CIFS_ACL_DACL);
 			else
 				rc = -EOPNOTSUPP;
 			if (rc == 0) /* force revalidate of the inode */
-				CIFS_I(direntry->d_inode)->time = 0;
+				CIFS_I(d_inode(direntry))->time = 0;
 			kfree(pacl);
 		}
 #else
@@ -246,9 +246,9 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
 
 	if (direntry == NULL)
 		return -EIO;
-	if (direntry->d_inode == NULL)
+	if (d_really_is_negative(direntry))
 		return -EIO;
-	sb = direntry->d_inode->i_sb;
+	sb = d_inode(direntry)->i_sb;
 	if (sb == NULL)
 		return -EIO;
 
@@ -324,7 +324,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
 				goto get_ea_exit; /* rc already EOPNOTSUPP */
 
 			pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
-					direntry->d_inode, full_path, &acllen);
+					d_inode(direntry), full_path, &acllen);
 			if (IS_ERR(pacl)) {
 				rc = PTR_ERR(pacl);
 				cifs_dbg(VFS, "%s: error %zd getting sec desc\n",
@@ -382,9 +382,9 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size)
 
 	if (direntry == NULL)
 		return -EIO;
-	if (direntry->d_inode == NULL)
+	if (d_really_is_negative(direntry))
 		return -EIO;
-	sb = direntry->d_inode->i_sb;
+	sb = d_inode(direntry)->i_sb;
 	if (sb == NULL)
 		return -EIO;
 

fs/coda/cache.c

@@ -94,8 +94,8 @@ static void coda_flag_children(struct dentry *parent, int flag)
 	spin_lock(&parent->d_lock);
 	list_for_each_entry(de, &parent->d_subdirs, d_child) {
 		/* don't know what to do with negative dentries */
-		if (de->d_inode ) 
-			coda_flag_inode(de->d_inode, flag);
+		if (d_inode(de) ) 
+			coda_flag_inode(d_inode(de), flag);
 	}
 	spin_unlock(&parent->d_lock);
 	return; 

fs/coda/dir.c

@@ -201,7 +201,7 @@ err_out:
 static int coda_link(struct dentry *source_de, struct inode *dir_inode, 
 	  struct dentry *de)
 {
-	struct inode *inode = source_de->d_inode;
+	struct inode *inode = d_inode(source_de);
         const char * name = de->d_name.name;
 	int len = de->d_name.len;
 	int error;
@@ -266,7 +266,7 @@ static int coda_unlink(struct inode *dir, struct dentry *de)
 		return error;
 
 	coda_dir_update_mtime(dir);
-	drop_nlink(de->d_inode);
+	drop_nlink(d_inode(de));
 	return 0;
 }
 
@@ -279,8 +279,8 @@ static int coda_rmdir(struct inode *dir, struct dentry *de)
 	error = venus_rmdir(dir->i_sb, coda_i2f(dir), name, len);
 	if (!error) {
 		/* VFS may delete the child */
-		if (de->d_inode)
-			clear_nlink(de->d_inode);
+		if (d_really_is_positive(de))
+			clear_nlink(d_inode(de));
 
 		/* fix the link count of the parent */
 		coda_dir_drop_nlink(dir);
@@ -303,14 +303,14 @@ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry,
 			     coda_i2f(new_dir), old_length, new_length,
 			     (const char *) old_name, (const char *)new_name);
 	if (!error) {
-		if (new_dentry->d_inode) {
+		if (d_really_is_positive(new_dentry)) {
 			if (d_is_dir(new_dentry)) {
 				coda_dir_drop_nlink(old_dir);
 				coda_dir_inc_nlink(new_dir);
 			}
 			coda_dir_update_mtime(old_dir);
 			coda_dir_update_mtime(new_dir);
-			coda_flag_inode(new_dentry->d_inode, C_VATTR);
+			coda_flag_inode(d_inode(new_dentry), C_VATTR);
 		} else {
 			coda_flag_inode(old_dir, C_VATTR);
 			coda_flag_inode(new_dir, C_VATTR);
@@ -449,13 +449,13 @@ static int coda_dentry_revalidate(struct dentry *de, unsigned int flags)
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	inode = de->d_inode;
+	inode = d_inode(de);
 	if (!inode || is_root_inode(inode))
 		goto out;
 	if (is_bad_inode(inode))
 		goto bad;
 
-	cii = ITOC(de->d_inode);
+	cii = ITOC(d_inode(de));
 	if (!(cii->c_flags & (C_PURGE | C_FLUSH)))
 		goto out;
 
@@ -487,11 +487,11 @@ static int coda_dentry_delete(const struct dentry * dentry)
 {
 	int flags;
 
-	if (!dentry->d_inode) 
+	if (d_really_is_negative(dentry)) 
 		return 0;
 
-	flags = (ITOC(dentry->d_inode)->c_flags) & C_PURGE;
-	if (is_bad_inode(dentry->d_inode) || flags) {
+	flags = (ITOC(d_inode(dentry))->c_flags) & C_PURGE;
+	if (is_bad_inode(d_inode(dentry)) || flags) {
 		return 1;
 	}
 	return 0;

fs/coda/inode.c

@@ -257,15 +257,15 @@ static void coda_evict_inode(struct inode *inode)
 
 int coda_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 {
-	int err = coda_revalidate_inode(dentry->d_inode);
+	int err = coda_revalidate_inode(d_inode(dentry));
 	if (!err)
-		generic_fillattr(dentry->d_inode, stat);
+		generic_fillattr(d_inode(dentry), stat);
 	return err;
 }
 
 int coda_setattr(struct dentry *de, struct iattr *iattr)
 {
-	struct inode *inode = de->d_inode;
+	struct inode *inode = d_inode(de);
 	struct coda_vattr vattr;
 	int error;
 

fs/coda/pioctl.c

@@ -72,7 +72,7 @@ static long coda_pioctl(struct file *filp, unsigned int cmd,
 	if (error)
 		return error;
 
-	target_inode = path.dentry->d_inode;
+	target_inode = d_inode(path.dentry);
 
 	/* return if it is not a Coda inode */
 	if (target_inode->i_sb != inode->i_sb) {

fs/coda/upcall.c

@@ -820,8 +820,8 @@ int coda_downcall(struct venus_comm *vcp, int opcode, union outputArgs *out)
 	case CODA_FLUSH:
 		coda_cache_clear_all(sb);
 		shrink_dcache_sb(sb);
-		if (sb->s_root->d_inode)
-			coda_flag_inode(sb->s_root->d_inode, C_FLUSH);
+		if (d_really_is_positive(sb->s_root))
+			coda_flag_inode(d_inode(sb->s_root), C_FLUSH);
 		break;
 
 	case CODA_PURGEUSER:

fs/configfs/dir.c

@@ -289,7 +289,7 @@ static int configfs_create_dir(struct config_item *item, struct dentry *dentry)
 	configfs_set_dir_dirent_depth(p->d_fsdata, dentry->d_fsdata);
 	error = configfs_create(dentry, mode, init_dir);
 	if (!error) {
-		inc_nlink(p->d_inode);
+		inc_nlink(d_inode(p));
 		item->ci_dentry = dentry;
 	} else {
 		struct configfs_dirent *sd = dentry->d_fsdata;
@@ -375,8 +375,8 @@ static void remove_dir(struct dentry * d)
 	list_del_init(&sd->s_sibling);
 	spin_unlock(&configfs_dirent_lock);
 	configfs_put(sd);
-	if (d->d_inode)
-		simple_rmdir(parent->d_inode,d);
+	if (d_really_is_positive(d))
+		simple_rmdir(d_inode(parent),d);
 
 	pr_debug(" o %pd removing done (%d)\n", d, d_count(d));
 
@@ -513,7 +513,7 @@ static int configfs_detach_prep(struct dentry *dentry, struct mutex **wait_mutex
 			/* Abort if racing with mkdir() */
 			if (sd->s_type & CONFIGFS_USET_IN_MKDIR) {
 				if (wait_mutex)
-					*wait_mutex = &sd->s_dentry->d_inode->i_mutex;
+					*wait_mutex = &d_inode(sd->s_dentry)->i_mutex;
 				return -EAGAIN;
 			}
 
@@ -624,13 +624,13 @@ static void detach_groups(struct config_group *group)
 
 		child = sd->s_dentry;
 
-		mutex_lock(&child->d_inode->i_mutex);
+		mutex_lock(&d_inode(child)->i_mutex);
 
 		configfs_detach_group(sd->s_element);
-		child->d_inode->i_flags |= S_DEAD;
+		d_inode(child)->i_flags |= S_DEAD;
 		dont_mount(child);
 
-		mutex_unlock(&child->d_inode->i_mutex);
+		mutex_unlock(&d_inode(child)->i_mutex);
 
 		d_delete(child);
 		dput(child);
@@ -672,7 +672,7 @@ static int create_default_group(struct config_group *parent_group,
 			sd = child->d_fsdata;
 			sd->s_type |= CONFIGFS_USET_DEFAULT;
 		} else {
-			BUG_ON(child->d_inode);
+			BUG_ON(d_inode(child));
 			d_drop(child);
 			dput(child);
 		}
@@ -818,11 +818,11 @@ static int configfs_attach_item(struct config_item *parent_item,
 			 * the VFS may already have hit and used them. Thus,
 			 * we must lock them as rmdir() would.
 			 */
-			mutex_lock(&dentry->d_inode->i_mutex);
+			mutex_lock(&d_inode(dentry)->i_mutex);
 			configfs_remove_dir(item);
-			dentry->d_inode->i_flags |= S_DEAD;
+			d_inode(dentry)->i_flags |= S_DEAD;
 			dont_mount(dentry);
-			mutex_unlock(&dentry->d_inode->i_mutex);
+			mutex_unlock(&d_inode(dentry)->i_mutex);
 			d_delete(dentry);
 		}
 	}
@@ -858,16 +858,16 @@ static int configfs_attach_group(struct config_item *parent_item,
 		 * We must also lock the inode to remove it safely in case of
 		 * error, as rmdir() would.
 		 */
-		mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD);
+		mutex_lock_nested(&d_inode(dentry)->i_mutex, I_MUTEX_CHILD);
 		configfs_adjust_dir_dirent_depth_before_populate(sd);
 		ret = populate_groups(to_config_group(item));
 		if (ret) {
 			configfs_detach_item(item);
-			dentry->d_inode->i_flags |= S_DEAD;
+			d_inode(dentry)->i_flags |= S_DEAD;
 			dont_mount(dentry);
 		}
 		configfs_adjust_dir_dirent_depth_after_populate(sd);
-		mutex_unlock(&dentry->d_inode->i_mutex);
+		mutex_unlock(&d_inode(dentry)->i_mutex);
 		if (ret)
 			d_delete(dentry);
 	}
@@ -1075,7 +1075,7 @@ int configfs_depend_item(struct configfs_subsystem *subsys,
 	 * subsystem is really registered, and so we need to lock out
 	 * configfs_[un]register_subsystem().
 	 */
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 
 	root_sd = root->d_fsdata;
 
@@ -1111,7 +1111,7 @@ int configfs_depend_item(struct configfs_subsystem *subsys,
 out_unlock_dirent_lock:
 	spin_unlock(&configfs_dirent_lock);
 out_unlock_fs:
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 
 	/*
 	 * If we succeeded, the fs is pinned via other methods.  If not,
@@ -1453,11 +1453,11 @@ int configfs_rename_dir(struct config_item * item, const char *new_name)
 	down_write(&configfs_rename_sem);
 	parent = item->parent->dentry;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 
 	new_dentry = lookup_one_len(new_name, parent, strlen(new_name));
 	if (!IS_ERR(new_dentry)) {
-		if (!new_dentry->d_inode) {
+		if (d_really_is_negative(new_dentry)) {
 			error = config_item_set_name(item, "%s", new_name);
 			if (!error) {
 				d_add(new_dentry, NULL);
@@ -1469,7 +1469,7 @@ int configfs_rename_dir(struct config_item * item, const char *new_name)
 			error = -EEXIST;
 		dput(new_dentry);
 	}
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	up_write(&configfs_rename_sem);
 
 	return error;
@@ -1482,7 +1482,7 @@ static int configfs_dir_open(struct inode *inode, struct file *file)
 	struct configfs_dirent * parent_sd = dentry->d_fsdata;
 	int err;
 
-	mutex_lock(&dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(dentry)->i_mutex);
 	/*
 	 * Fake invisibility if dir belongs to a group/default groups hierarchy
 	 * being attached
@@ -1495,7 +1495,7 @@ static int configfs_dir_open(struct inode *inode, struct file *file)
 		else
 			err = 0;
 	}
-	mutex_unlock(&dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry)->i_mutex);
 
 	return err;
 }
@@ -1505,11 +1505,11 @@ static int configfs_dir_close(struct inode *inode, struct file *file)
 	struct dentry * dentry = file->f_path.dentry;
 	struct configfs_dirent * cursor = file->private_data;
 
-	mutex_lock(&dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(dentry)->i_mutex);
 	spin_lock(&configfs_dirent_lock);
 	list_del_init(&cursor->s_sibling);
 	spin_unlock(&configfs_dirent_lock);
-	mutex_unlock(&dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry)->i_mutex);
 
 	release_configfs_dirent(cursor);
 
@@ -1567,7 +1567,7 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
 		spin_lock(&configfs_dirent_lock);
 		dentry = next->s_dentry;
 		if (dentry)
-			inode = dentry->d_inode;
+			inode = d_inode(dentry);
 		if (inode)
 			ino = inode->i_ino;
 		spin_unlock(&configfs_dirent_lock);
@@ -1590,7 +1590,7 @@ static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence)
 {
 	struct dentry * dentry = file->f_path.dentry;
 
-	mutex_lock(&dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(dentry)->i_mutex);
 	switch (whence) {
 		case 1:
 			offset += file->f_pos;
@@ -1598,7 +1598,7 @@ static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence)
 			if (offset >= 0)
 				break;
 		default:
-			mutex_unlock(&dentry->d_inode->i_mutex);
+			mutex_unlock(&d_inode(dentry)->i_mutex);
 			return -EINVAL;
 	}
 	if (offset != file->f_pos) {
@@ -1624,7 +1624,7 @@ static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence)
 			spin_unlock(&configfs_dirent_lock);
 		}
 	}
-	mutex_unlock(&dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry)->i_mutex);
 	return offset;
 }
 
@@ -1654,7 +1654,7 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
 	sd = root->d_fsdata;
 	link_group(to_config_group(sd->s_element), group);
 
-	mutex_lock_nested(&root->d_inode->i_mutex, I_MUTEX_PARENT);
+	mutex_lock_nested(&d_inode(root)->i_mutex, I_MUTEX_PARENT);
 
 	err = -ENOMEM;
 	dentry = d_alloc_name(root, group->cg_item.ci_name);
@@ -1664,7 +1664,7 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
 		err = configfs_attach_group(sd->s_element, &group->cg_item,
 					    dentry);
 		if (err) {
-			BUG_ON(dentry->d_inode);
+			BUG_ON(d_inode(dentry));
 			d_drop(dentry);
 			dput(dentry);
 		} else {
@@ -1674,7 +1674,7 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
 		}
 	}
 
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 
 	if (err) {
 		unlink_group(group);
@@ -1695,9 +1695,9 @@ void configfs_unregister_subsystem(struct configfs_subsystem *subsys)
 		return;
 	}
 
-	mutex_lock_nested(&root->d_inode->i_mutex,
+	mutex_lock_nested(&d_inode(root)->i_mutex,
 			  I_MUTEX_PARENT);
-	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD);
+	mutex_lock_nested(&d_inode(dentry)->i_mutex, I_MUTEX_CHILD);
 	mutex_lock(&configfs_symlink_mutex);
 	spin_lock(&configfs_dirent_lock);
 	if (configfs_detach_prep(dentry, NULL)) {
@@ -1706,13 +1706,13 @@ void configfs_unregister_subsystem(struct configfs_subsystem *subsys)
 	spin_unlock(&configfs_dirent_lock);
 	mutex_unlock(&configfs_symlink_mutex);
 	configfs_detach_group(&group->cg_item);
-	dentry->d_inode->i_flags |= S_DEAD;
+	d_inode(dentry)->i_flags |= S_DEAD;
 	dont_mount(dentry);
-	mutex_unlock(&dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry)->i_mutex);
 
 	d_delete(dentry);
 
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 
 	dput(dentry);
 

fs/configfs/file.c

@@ -326,10 +326,10 @@ int configfs_create_file(struct config_item * item, const struct configfs_attrib
 	umode_t mode = (attr->ca_mode & S_IALLUGO) | S_IFREG;
 	int error = 0;
 
-	mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_NORMAL);
+	mutex_lock_nested(&d_inode(dir)->i_mutex, I_MUTEX_NORMAL);
 	error = configfs_make_dirent(parent_sd, NULL, (void *) attr, mode,
 				     CONFIGFS_ITEM_ATTR);
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 
 	return error;
 }

fs/configfs/inode.c

@@ -56,7 +56,7 @@ static const struct inode_operations configfs_inode_operations ={
 
 int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
 {
-	struct inode * inode = dentry->d_inode;
+	struct inode * inode = d_inode(dentry);
 	struct configfs_dirent * sd = dentry->d_fsdata;
 	struct iattr * sd_iattr;
 	unsigned int ia_valid = iattr->ia_valid;
@@ -186,7 +186,7 @@ int configfs_create(struct dentry * dentry, umode_t mode, void (*init)(struct in
 	if (!dentry)
 		return -ENOENT;
 
-	if (dentry->d_inode)
+	if (d_really_is_positive(dentry))
 		return -EEXIST;
 
 	sd = dentry->d_fsdata;
@@ -194,7 +194,7 @@ int configfs_create(struct dentry * dentry, umode_t mode, void (*init)(struct in
 	if (!inode)
 		return -ENOMEM;
 
-	p_inode = dentry->d_parent->d_inode;
+	p_inode = d_inode(dentry->d_parent);
 	p_inode->i_mtime = p_inode->i_ctime = CURRENT_TIME;
 	configfs_set_inode_lock_class(sd, inode);
 
@@ -236,11 +236,11 @@ void configfs_drop_dentry(struct configfs_dirent * sd, struct dentry * parent)
 
 	if (dentry) {
 		spin_lock(&dentry->d_lock);
-		if (!d_unhashed(dentry) && dentry->d_inode) {
+		if (!d_unhashed(dentry) && d_really_is_positive(dentry)) {
 			dget_dlock(dentry);
 			__d_drop(dentry);
 			spin_unlock(&dentry->d_lock);
-			simple_unlink(parent->d_inode, dentry);
+			simple_unlink(d_inode(parent), dentry);
 		} else
 			spin_unlock(&dentry->d_lock);
 	}
@@ -251,11 +251,11 @@ void configfs_hash_and_remove(struct dentry * dir, const char * name)
 	struct configfs_dirent * sd;
 	struct configfs_dirent * parent_sd = dir->d_fsdata;
 
-	if (dir->d_inode == NULL)
+	if (d_really_is_negative(dir))
 		/* no inode means this hasn't been made visible yet */
 		return;
 
-	mutex_lock(&dir->d_inode->i_mutex);
+	mutex_lock(&d_inode(dir)->i_mutex);
 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
 		if (!sd->s_element)
 			continue;
@@ -268,5 +268,5 @@ void configfs_hash_and_remove(struct dentry * dir, const char * name)
 			break;
 		}
 	}
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 }

fs/dax.c

@@ -209,7 +209,7 @@ ssize_t dax_do_io(struct kiocb *iocb, struct inode *inode,
 	}
 
 	/* Protects against truncate */
-	atomic_inc(&inode->i_dio_count);
+	inode_dio_begin(inode);
 
 	retval = dax_io(inode, iter, pos, end, get_block, &bh);
 
@@ -219,7 +219,7 @@ ssize_t dax_do_io(struct kiocb *iocb, struct inode *inode,
 	if ((retval > 0) && end_io)
 		end_io(iocb, pos, retval, bh.b_private);
 
-	inode_dio_done(inode);
+	inode_dio_end(inode);
  out:
 	return retval;
 }

fs/debugfs/file.c

@@ -45,7 +45,7 @@ const struct file_operations debugfs_file_operations = {
 
 static void *debugfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-	nd_set_link(nd, dentry->d_inode->i_private);
+	nd_set_link(nd, d_inode(dentry)->i_private);
 	return NULL;
 }
 

fs/debugfs/inode.c

@@ -46,7 +46,7 @@ static struct inode *debugfs_get_inode(struct super_block *sb)
 
 static inline int debugfs_positive(struct dentry *dentry)
 {
-	return dentry->d_inode && !d_unhashed(dentry);
+	return d_really_is_positive(dentry) && !d_unhashed(dentry);
 }
 
 struct debugfs_mount_opts {
@@ -124,7 +124,7 @@ static int debugfs_parse_options(char *data, struct debugfs_mount_opts *opts)
 static int debugfs_apply_options(struct super_block *sb)
 {
 	struct debugfs_fs_info *fsi = sb->s_fs_info;
-	struct inode *inode = sb->s_root->d_inode;
+	struct inode *inode = d_inode(sb->s_root);
 	struct debugfs_mount_opts *opts = &fsi->mount_opts;
 
 	inode->i_mode &= ~S_IALLUGO;
@@ -188,7 +188,7 @@ static struct vfsmount *debugfs_automount(struct path *path)
 {
 	struct vfsmount *(*f)(void *);
 	f = (struct vfsmount *(*)(void *))path->dentry->d_fsdata;
-	return f(path->dentry->d_inode->i_private);
+	return f(d_inode(path->dentry)->i_private);
 }
 
 static const struct dentry_operations debugfs_dops = {
@@ -270,20 +270,20 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
 	if (!parent)
 		parent = debugfs_mount->mnt_root;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	dentry = lookup_one_len(name, parent, strlen(name));
-	if (!IS_ERR(dentry) && dentry->d_inode) {
+	if (!IS_ERR(dentry) && d_really_is_positive(dentry)) {
 		dput(dentry);
 		dentry = ERR_PTR(-EEXIST);
 	}
 	if (IS_ERR(dentry))
-		mutex_unlock(&parent->d_inode->i_mutex);
+		mutex_unlock(&d_inode(parent)->i_mutex);
 	return dentry;
 }
 
 static struct dentry *failed_creating(struct dentry *dentry)
 {
-	mutex_unlock(&dentry->d_parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry->d_parent)->i_mutex);
 	dput(dentry);
 	simple_release_fs(&debugfs_mount, &debugfs_mount_count);
 	return NULL;
@@ -291,7 +291,7 @@ static struct dentry *failed_creating(struct dentry *dentry)
 
 static struct dentry *end_creating(struct dentry *dentry)
 {
-	mutex_unlock(&dentry->d_parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dentry->d_parent)->i_mutex);
 	return dentry;
 }
 
@@ -344,7 +344,7 @@ struct dentry *debugfs_create_file(const char *name, umode_t mode,
 	inode->i_fop = fops ? fops : &debugfs_file_operations;
 	inode->i_private = data;
 	d_instantiate(dentry, inode);
-	fsnotify_create(dentry->d_parent->d_inode, dentry);
+	fsnotify_create(d_inode(dentry->d_parent), dentry);
 	return end_creating(dentry);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_file);
@@ -384,7 +384,7 @@ struct dentry *debugfs_create_file_size(const char *name, umode_t mode,
 	struct dentry *de = debugfs_create_file(name, mode, parent, data, fops);
 
 	if (de)
-		de->d_inode->i_size = file_size;
+		d_inode(de)->i_size = file_size;
 	return de;
 }
 EXPORT_SYMBOL_GPL(debugfs_create_file_size);
@@ -426,8 +426,8 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 	/* directory inodes start off with i_nlink == 2 (for "." entry) */
 	inc_nlink(inode);
 	d_instantiate(dentry, inode);
-	inc_nlink(dentry->d_parent->d_inode);
-	fsnotify_mkdir(dentry->d_parent->d_inode, dentry);
+	inc_nlink(d_inode(dentry->d_parent));
+	fsnotify_mkdir(d_inode(dentry->d_parent), dentry);
 	return end_creating(dentry);
 }
 EXPORT_SYMBOL_GPL(debugfs_create_dir);
@@ -525,9 +525,9 @@ static int __debugfs_remove(struct dentry *dentry, struct dentry *parent)
 	if (debugfs_positive(dentry)) {
 		dget(dentry);
 		if (d_is_dir(dentry))
-			ret = simple_rmdir(parent->d_inode, dentry);
+			ret = simple_rmdir(d_inode(parent), dentry);
 		else
-			simple_unlink(parent->d_inode, dentry);
+			simple_unlink(d_inode(parent), dentry);
 		if (!ret)
 			d_delete(dentry);
 		dput(dentry);
@@ -557,12 +557,12 @@ void debugfs_remove(struct dentry *dentry)
 		return;
 
 	parent = dentry->d_parent;
-	if (!parent || !parent->d_inode)
+	if (!parent || d_really_is_negative(parent))
 		return;
 
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 	ret = __debugfs_remove(dentry, parent);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	if (!ret)
 		simple_release_fs(&debugfs_mount, &debugfs_mount_count);
 }
@@ -588,12 +588,12 @@ void debugfs_remove_recursive(struct dentry *dentry)
 		return;
 
 	parent = dentry->d_parent;
-	if (!parent || !parent->d_inode)
+	if (!parent || d_really_is_negative(parent))
 		return;
 
 	parent = dentry;
  down:
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
  loop:
 	/*
 	 * The parent->d_subdirs is protected by the d_lock. Outside that
@@ -608,7 +608,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
 		/* perhaps simple_empty(child) makes more sense */
 		if (!list_empty(&child->d_subdirs)) {
 			spin_unlock(&parent->d_lock);
-			mutex_unlock(&parent->d_inode->i_mutex);
+			mutex_unlock(&d_inode(parent)->i_mutex);
 			parent = child;
 			goto down;
 		}
@@ -629,10 +629,10 @@ void debugfs_remove_recursive(struct dentry *dentry)
 	}
 	spin_unlock(&parent->d_lock);
 
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	child = parent;
 	parent = parent->d_parent;
-	mutex_lock(&parent->d_inode->i_mutex);
+	mutex_lock(&d_inode(parent)->i_mutex);
 
 	if (child != dentry)
 		/* go up */
@@ -640,7 +640,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
 
 	if (!__debugfs_remove(child, parent))
 		simple_release_fs(&debugfs_mount, &debugfs_mount_count);
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 }
 EXPORT_SYMBOL_GPL(debugfs_remove_recursive);
 
@@ -672,27 +672,27 @@ struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
 
 	trap = lock_rename(new_dir, old_dir);
 	/* Source or destination directories don't exist? */
-	if (!old_dir->d_inode || !new_dir->d_inode)
+	if (d_really_is_negative(old_dir) || d_really_is_negative(new_dir))
 		goto exit;
 	/* Source does not exist, cyclic rename, or mountpoint? */
-	if (!old_dentry->d_inode || old_dentry == trap ||
+	if (d_really_is_negative(old_dentry) || old_dentry == trap ||
 	    d_mountpoint(old_dentry))
 		goto exit;
 	dentry = lookup_one_len(new_name, new_dir, strlen(new_name));
 	/* Lookup failed, cyclic rename or target exists? */
-	if (IS_ERR(dentry) || dentry == trap || dentry->d_inode)
+	if (IS_ERR(dentry) || dentry == trap || d_really_is_positive(dentry))
 		goto exit;
 
 	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
 
-	error = simple_rename(old_dir->d_inode, old_dentry, new_dir->d_inode,
+	error = simple_rename(d_inode(old_dir), old_dentry, d_inode(new_dir),
 		dentry);
 	if (error) {
 		fsnotify_oldname_free(old_name);
 		goto exit;
 	}
 	d_move(old_dentry, dentry);
-	fsnotify_move(old_dir->d_inode, new_dir->d_inode, old_name,
+	fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name,
 		d_is_dir(old_dentry),
 		NULL, old_dentry);
 	fsnotify_oldname_free(old_name);

fs/devpts/inode.c

@@ -253,7 +253,7 @@ static int mknod_ptmx(struct super_block *sb)
 	if (!uid_valid(root_uid) || !gid_valid(root_gid))
 		return -EINVAL;
 
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 
 	/* If we have already created ptmx node, return */
 	if (fsi->ptmx_dentry) {
@@ -290,7 +290,7 @@ static int mknod_ptmx(struct super_block *sb)
 	fsi->ptmx_dentry = dentry;
 	rc = 0;
 out:
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 	return rc;
 }
 
@@ -298,7 +298,7 @@ static void update_ptmx_mode(struct pts_fs_info *fsi)
 {
 	struct inode *inode;
 	if (fsi->ptmx_dentry) {
-		inode = fsi->ptmx_dentry->d_inode;
+		inode = d_inode(fsi->ptmx_dentry);
 		inode->i_mode = S_IFCHR|fsi->mount_opts.ptmxmode;
 	}
 }
@@ -602,18 +602,18 @@ struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
 
 	sprintf(s, "%d", index);
 
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 
 	dentry = d_alloc_name(root, s);
 	if (dentry) {
 		d_add(dentry, inode);
-		fsnotify_create(root->d_inode, dentry);
+		fsnotify_create(d_inode(root), dentry);
 	} else {
 		iput(inode);
 		inode = ERR_PTR(-ENOMEM);
 	}
 
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 
 	return inode;
 }
@@ -658,7 +658,7 @@ void devpts_pty_kill(struct inode *inode)
 
 	BUG_ON(inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR));
 
-	mutex_lock(&root->d_inode->i_mutex);
+	mutex_lock(&d_inode(root)->i_mutex);
 
 	dentry = d_find_alias(inode);
 
@@ -667,7 +667,7 @@ void devpts_pty_kill(struct inode *inode)
 	dput(dentry);	/* d_alloc_name() in devpts_pty_new() */
 	dput(dentry);		/* d_find_alias above */
 
-	mutex_unlock(&root->d_inode->i_mutex);
+	mutex_unlock(&d_inode(root)->i_mutex);
 }
 
 static int __init init_devpts_fs(void)

fs/direct-io.c

@@ -253,7 +253,9 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,
 	if (dio->end_io && dio->result)
 		dio->end_io(dio->iocb, offset, transferred, dio->private);
 
-	inode_dio_done(dio->inode);
+	if (!(dio->flags & DIO_SKIP_DIO_COUNT))
+		inode_dio_end(dio->inode);
+
 	if (is_async) {
 		if (dio->rw & WRITE) {
 			int err;
@@ -1195,7 +1197,8 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 	/*
 	 * Will be decremented at I/O completion time.
 	 */
-	atomic_inc(&inode->i_dio_count);
+	if (!(dio->flags & DIO_SKIP_DIO_COUNT))
+		inode_dio_begin(inode);
 
 	retval = 0;
 	sdio.blkbits = blkbits;

fs/ecryptfs/crypto.c

@@ -1326,7 +1326,7 @@ static int ecryptfs_read_headers_virt(char *page_virt,
 	if (rc)
 		goto out;
 	if (!(crypt_stat->flags & ECRYPTFS_I_SIZE_INITIALIZED))
-		ecryptfs_i_size_init(page_virt, ecryptfs_dentry->d_inode);
+		ecryptfs_i_size_init(page_virt, d_inode(ecryptfs_dentry));
 	offset += MAGIC_ECRYPTFS_MARKER_SIZE_BYTES;
 	rc = ecryptfs_process_flags(crypt_stat, (page_virt + offset),
 				    &bytes_read);
@@ -1425,7 +1425,7 @@ int ecryptfs_read_metadata(struct dentry *ecryptfs_dentry)
 {
 	int rc;
 	char *page_virt;
-	struct inode *ecryptfs_inode = ecryptfs_dentry->d_inode;
+	struct inode *ecryptfs_inode = d_inode(ecryptfs_dentry);
 	struct ecryptfs_crypt_stat *crypt_stat =
 	    &ecryptfs_inode_to_private(ecryptfs_inode)->crypt_stat;
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat =

fs/ecryptfs/dentry.c

@@ -54,11 +54,11 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags)
 		return -ECHILD;
 
 	rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		struct inode *lower_inode =
-			ecryptfs_inode_to_lower(dentry->d_inode);
+			ecryptfs_inode_to_lower(d_inode(dentry));
 
-		fsstack_copy_attr_all(dentry->d_inode, lower_inode);
+		fsstack_copy_attr_all(d_inode(dentry), lower_inode);
 	}
 	return rc;
 }

fs/ecryptfs/file.c

@@ -130,7 +130,7 @@ struct kmem_cache *ecryptfs_file_info_cache;
 
 static int read_or_initialize_metadata(struct dentry *dentry)
 {
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
 	struct ecryptfs_crypt_stat *crypt_stat;
 	int rc;

fs/ecryptfs/inode.c

@@ -41,13 +41,13 @@ static struct dentry *lock_parent(struct dentry *dentry)
 	struct dentry *dir;
 
 	dir = dget_parent(dentry);
-	mutex_lock_nested(&(dir->d_inode->i_mutex), I_MUTEX_PARENT);
+	mutex_lock_nested(&(d_inode(dir)->i_mutex), I_MUTEX_PARENT);
 	return dir;
 }
 
 static void unlock_dir(struct dentry *dir)
 {
-	mutex_unlock(&dir->d_inode->i_mutex);
+	mutex_unlock(&d_inode(dir)->i_mutex);
 	dput(dir);
 }
 
@@ -131,7 +131,7 @@ struct inode *ecryptfs_get_inode(struct inode *lower_inode,
 static int ecryptfs_interpose(struct dentry *lower_dentry,
 			      struct dentry *dentry, struct super_block *sb)
 {
-	struct inode *inode = ecryptfs_get_inode(lower_dentry->d_inode, sb);
+	struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb);
 
 	if (IS_ERR(inode))
 		return PTR_ERR(inode);
@@ -189,21 +189,21 @@ ecryptfs_do_create(struct inode *directory_inode,
 
 	lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry);
 	lower_dir_dentry = lock_parent(lower_dentry);
-	rc = vfs_create(lower_dir_dentry->d_inode, lower_dentry, mode, true);
+	rc = vfs_create(d_inode(lower_dir_dentry), lower_dentry, mode, true);
 	if (rc) {
 		printk(KERN_ERR "%s: Failure to create dentry in lower fs; "
 		       "rc = [%d]\n", __func__, rc);
 		inode = ERR_PTR(rc);
 		goto out_lock;
 	}
-	inode = __ecryptfs_get_inode(lower_dentry->d_inode,
+	inode = __ecryptfs_get_inode(d_inode(lower_dentry),
 				     directory_inode->i_sb);
 	if (IS_ERR(inode)) {
-		vfs_unlink(lower_dir_dentry->d_inode, lower_dentry, NULL);
+		vfs_unlink(d_inode(lower_dir_dentry), lower_dentry, NULL);
 		goto out_lock;
 	}
-	fsstack_copy_attr_times(directory_inode, lower_dir_dentry->d_inode);
-	fsstack_copy_inode_size(directory_inode, lower_dir_dentry->d_inode);
+	fsstack_copy_attr_times(directory_inode, d_inode(lower_dir_dentry));
+	fsstack_copy_inode_size(directory_inode, d_inode(lower_dir_dentry));
 out_lock:
 	unlock_dir(lower_dir_dentry);
 	return inode;
@@ -332,7 +332,7 @@ static int ecryptfs_lookup_interpose(struct dentry *dentry,
 				     struct dentry *lower_dentry,
 				     struct inode *dir_inode)
 {
-	struct inode *inode, *lower_inode = lower_dentry->d_inode;
+	struct inode *inode, *lower_inode = d_inode(lower_dentry);
 	struct ecryptfs_dentry_info *dentry_info;
 	struct vfsmount *lower_mnt;
 	int rc = 0;
@@ -347,14 +347,14 @@ static int ecryptfs_lookup_interpose(struct dentry *dentry,
 	}
 
 	lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(dentry->d_parent));
-	fsstack_copy_attr_atime(dir_inode, lower_dentry->d_parent->d_inode);
+	fsstack_copy_attr_atime(dir_inode, d_inode(lower_dentry->d_parent));
 	BUG_ON(!d_count(lower_dentry));
 
 	ecryptfs_set_dentry_private(dentry, dentry_info);
 	dentry_info->lower_path.mnt = lower_mnt;
 	dentry_info->lower_path.dentry = lower_dentry;
 
-	if (!lower_dentry->d_inode) {
+	if (d_really_is_negative(lower_dentry)) {
 		/* We want to add because we couldn't find in lower */
 		d_add(dentry, NULL);
 		return 0;
@@ -400,11 +400,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
 	int rc = 0;
 
 	lower_dir_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry->d_parent);
-	mutex_lock(&lower_dir_dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(lower_dir_dentry)->i_mutex);
 	lower_dentry = lookup_one_len(ecryptfs_dentry->d_name.name,
 				      lower_dir_dentry,
 				      ecryptfs_dentry->d_name.len);
-	mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex);
 	if (IS_ERR(lower_dentry)) {
 		rc = PTR_ERR(lower_dentry);
 		ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
@@ -412,7 +412,7 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
 				ecryptfs_dentry);
 		goto out;
 	}
-	if (lower_dentry->d_inode)
+	if (d_really_is_positive(lower_dentry))
 		goto interpose;
 	mount_crypt_stat = &ecryptfs_superblock_to_private(
 				ecryptfs_dentry->d_sb)->mount_crypt_stat;
@@ -429,11 +429,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
 		       "filename; rc = [%d]\n", __func__, rc);
 		goto out;
 	}
-	mutex_lock(&lower_dir_dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(lower_dir_dentry)->i_mutex);
 	lower_dentry = lookup_one_len(encrypted_and_encoded_name,
 				      lower_dir_dentry,
 				      encrypted_and_encoded_name_size);
-	mutex_unlock(&lower_dir_dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex);
 	if (IS_ERR(lower_dentry)) {
 		rc = PTR_ERR(lower_dentry);
 		ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned "
@@ -458,24 +458,24 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
 	u64 file_size_save;
 	int rc;
 
-	file_size_save = i_size_read(old_dentry->d_inode);
+	file_size_save = i_size_read(d_inode(old_dentry));
 	lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry);
 	lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry);
 	dget(lower_old_dentry);
 	dget(lower_new_dentry);
 	lower_dir_dentry = lock_parent(lower_new_dentry);
-	rc = vfs_link(lower_old_dentry, lower_dir_dentry->d_inode,
+	rc = vfs_link(lower_old_dentry, d_inode(lower_dir_dentry),
 		      lower_new_dentry, NULL);
-	if (rc || !lower_new_dentry->d_inode)
+	if (rc || d_really_is_negative(lower_new_dentry))
 		goto out_lock;
 	rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb);
 	if (rc)
 		goto out_lock;
-	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-	fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
-	set_nlink(old_dentry->d_inode,
-		  ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink);
-	i_size_write(new_dentry->d_inode, file_size_save);
+	fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
+	fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry));
+	set_nlink(d_inode(old_dentry),
+		  ecryptfs_inode_to_lower(d_inode(old_dentry))->i_nlink);
+	i_size_write(d_inode(new_dentry), file_size_save);
 out_lock:
 	unlock_dir(lower_dir_dentry);
 	dput(lower_new_dentry);
@@ -485,7 +485,7 @@ out_lock:
 
 static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry)
 {
-	return ecryptfs_do_unlink(dir, dentry, dentry->d_inode);
+	return ecryptfs_do_unlink(dir, dentry, d_inode(dentry));
 }
 
 static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,
@@ -510,20 +510,20 @@ static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry,
 						  strlen(symname));
 	if (rc)
 		goto out_lock;
-	rc = vfs_symlink(lower_dir_dentry->d_inode, lower_dentry,
+	rc = vfs_symlink(d_inode(lower_dir_dentry), lower_dentry,
 			 encoded_symname);
 	kfree(encoded_symname);
-	if (rc || !lower_dentry->d_inode)
+	if (rc || d_really_is_negative(lower_dentry))
 		goto out_lock;
 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);
 	if (rc)
 		goto out_lock;
-	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-	fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
+	fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
+	fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry));
 out_lock:
 	unlock_dir(lower_dir_dentry);
 	dput(lower_dentry);
-	if (!dentry->d_inode)
+	if (d_really_is_negative(dentry))
 		d_drop(dentry);
 	return rc;
 }
@@ -536,18 +536,18 @@ static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	lower_dir_dentry = lock_parent(lower_dentry);
-	rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode);
-	if (rc || !lower_dentry->d_inode)
+	rc = vfs_mkdir(d_inode(lower_dir_dentry), lower_dentry, mode);
+	if (rc || d_really_is_negative(lower_dentry))
 		goto out;
 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);
 	if (rc)
 		goto out;
-	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-	fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
-	set_nlink(dir, lower_dir_dentry->d_inode->i_nlink);
+	fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
+	fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry));
+	set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink);
 out:
 	unlock_dir(lower_dir_dentry);
-	if (!dentry->d_inode)
+	if (d_really_is_negative(dentry))
 		d_drop(dentry);
 	return rc;
 }
@@ -562,12 +562,12 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)
 	dget(dentry);
 	lower_dir_dentry = lock_parent(lower_dentry);
 	dget(lower_dentry);
-	rc = vfs_rmdir(lower_dir_dentry->d_inode, lower_dentry);
+	rc = vfs_rmdir(d_inode(lower_dir_dentry), lower_dentry);
 	dput(lower_dentry);
-	if (!rc && dentry->d_inode)
-		clear_nlink(dentry->d_inode);
-	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-	set_nlink(dir, lower_dir_dentry->d_inode->i_nlink);
+	if (!rc && d_really_is_positive(dentry))
+		clear_nlink(d_inode(dentry));
+	fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
+	set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink);
 	unlock_dir(lower_dir_dentry);
 	if (!rc)
 		d_drop(dentry);
@@ -584,17 +584,17 @@ ecryptfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	lower_dir_dentry = lock_parent(lower_dentry);
-	rc = vfs_mknod(lower_dir_dentry->d_inode, lower_dentry, mode, dev);
-	if (rc || !lower_dentry->d_inode)
+	rc = vfs_mknod(d_inode(lower_dir_dentry), lower_dentry, mode, dev);
+	if (rc || d_really_is_negative(lower_dentry))
 		goto out;
 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);
 	if (rc)
 		goto out;
-	fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode);
-	fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode);
+	fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
+	fsstack_copy_inode_size(dir, d_inode(lower_dir_dentry));
 out:
 	unlock_dir(lower_dir_dentry);
-	if (!dentry->d_inode)
+	if (d_really_is_negative(dentry))
 		d_drop(dentry);
 	return rc;
 }
@@ -617,7 +617,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	dget(lower_new_dentry);
 	lower_old_dir_dentry = dget_parent(lower_old_dentry);
 	lower_new_dir_dentry = dget_parent(lower_new_dentry);
-	target_inode = new_dentry->d_inode;
+	target_inode = d_inode(new_dentry);
 	trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
 	/* source should not be ancestor of target */
 	if (trap == lower_old_dentry) {
@@ -629,17 +629,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		rc = -ENOTEMPTY;
 		goto out_lock;
 	}
-	rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry,
-			lower_new_dir_dentry->d_inode, lower_new_dentry,
+	rc = vfs_rename(d_inode(lower_old_dir_dentry), lower_old_dentry,
+			d_inode(lower_new_dir_dentry), lower_new_dentry,
 			NULL, 0);
 	if (rc)
 		goto out_lock;
 	if (target_inode)
 		fsstack_copy_attr_all(target_inode,
 				      ecryptfs_inode_to_lower(target_inode));
-	fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode);
+	fsstack_copy_attr_all(new_dir, d_inode(lower_new_dir_dentry));
 	if (new_dir != old_dir)
-		fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode);
+		fsstack_copy_attr_all(old_dir, d_inode(lower_old_dir_dentry));
 out_lock:
 	unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
 	dput(lower_new_dir_dentry);
@@ -662,7 +662,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
 		return ERR_PTR(-ENOMEM);
 	old_fs = get_fs();
 	set_fs(get_ds());
-	rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
+	rc = d_inode(lower_dentry)->i_op->readlink(lower_dentry,
 						   (char __user *)lower_buf,
 						   PATH_MAX);
 	set_fs(old_fs);
@@ -681,8 +681,8 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	char *buf = ecryptfs_readlink_lower(dentry, &len);
 	if (IS_ERR(buf))
 		goto out;
-	fsstack_copy_attr_atime(dentry->d_inode,
-				ecryptfs_dentry_to_lower(dentry)->d_inode);
+	fsstack_copy_attr_atime(d_inode(dentry),
+				d_inode(ecryptfs_dentry_to_lower(dentry)));
 	buf[len] = '\0';
 out:
 	nd_set_link(nd, buf);
@@ -738,7 +738,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
 			  struct iattr *lower_ia)
 {
 	int rc = 0;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = d_inode(dentry);
 	struct ecryptfs_crypt_stat *crypt_stat;
 	loff_t i_size = i_size_read(inode);
 	loff_t lower_size_before_truncate;
@@ -751,7 +751,7 @@ static int truncate_upper(struct dentry *dentry, struct iattr *ia,
 	rc = ecryptfs_get_lower_file(dentry, inode);
 	if (rc)
 		return rc;
-	crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat;
+	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;
 	/* Switch on growing or shrinking file */
 	if (ia->ia_size > i_size) {
 		char zero[] = { 0x00 };
@@ -858,7 +858,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
 	struct iattr lower_ia = { .ia_valid = 0 };
 	int rc;
 
-	rc = ecryptfs_inode_newsize_ok(dentry->d_inode, new_length);
+	rc = ecryptfs_inode_newsize_ok(d_inode(dentry), new_length);
 	if (rc)
 		return rc;
 
@@ -866,9 +866,9 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
 	if (!rc && lower_ia.ia_valid & ATTR_SIZE) {
 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
 
-		mutex_lock(&lower_dentry->d_inode->i_mutex);
+		mutex_lock(&d_inode(lower_dentry)->i_mutex);
 		rc = notify_change(lower_dentry, &lower_ia, NULL);
-		mutex_unlock(&lower_dentry->d_inode->i_mutex);
+		mutex_unlock(&d_inode(lower_dentry)->i_mutex);
 	}
 	return rc;
 }
@@ -900,10 +900,10 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 	struct inode *lower_inode;
 	struct ecryptfs_crypt_stat *crypt_stat;
 
-	crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat;
+	crypt_stat = &ecryptfs_inode_to_private(d_inode(dentry))->crypt_stat;
 	if (!(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED))
 		ecryptfs_init_crypt_stat(crypt_stat);
-	inode = dentry->d_inode;
+	inode = d_inode(dentry);
 	lower_inode = ecryptfs_inode_to_lower(inode);
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	mutex_lock(&crypt_stat->cs_mutex);
@@ -967,9 +967,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 	if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
 		lower_ia.ia_valid &= ~ATTR_MODE;
 
-	mutex_lock(&lower_dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(lower_dentry)->i_mutex);
 	rc = notify_change(lower_dentry, &lower_ia, NULL);
-	mutex_unlock(&lower_dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(lower_dentry)->i_mutex);
 out:
 	fsstack_copy_attr_all(inode, lower_inode);
 	return rc;
@@ -983,7 +983,7 @@ static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,
 
 	mount_crypt_stat = &ecryptfs_superblock_to_private(
 						dentry->d_sb)->mount_crypt_stat;
-	generic_fillattr(dentry->d_inode, stat);
+	generic_fillattr(d_inode(dentry), stat);
 	if (mount_crypt_stat->flags & ECRYPTFS_GLOBAL_ENCRYPT_FILENAMES) {
 		char *target;
 		size_t targetsiz;
@@ -1007,9 +1007,9 @@ static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 
 	rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat);
 	if (!rc) {
-		fsstack_copy_attr_all(dentry->d_inode,
-				      ecryptfs_inode_to_lower(dentry->d_inode));
-		generic_fillattr(dentry->d_inode, stat);
+		fsstack_copy_attr_all(d_inode(dentry),
+				      ecryptfs_inode_to_lower(d_inode(dentry)));
+		generic_fillattr(d_inode(dentry), stat);
 		stat->blocks = lower_stat.blocks;
 	}
 	return rc;
@@ -1023,14 +1023,14 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 	struct dentry *lower_dentry;
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!lower_dentry->d_inode->i_op->setxattr) {
+	if (!d_inode(lower_dentry)->i_op->setxattr) {
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
 
 	rc = vfs_setxattr(lower_dentry, name, value, size, flags);
-	if (!rc && dentry->d_inode)
-		fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
+	if (!rc && d_really_is_positive(dentry))
+		fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));
 out:
 	return rc;
 }
@@ -1041,14 +1041,14 @@ ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
 {
 	int rc = 0;
 
-	if (!lower_dentry->d_inode->i_op->getxattr) {
+	if (!d_inode(lower_dentry)->i_op->getxattr) {
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
-	mutex_lock(&lower_dentry->d_inode->i_mutex);
-	rc = lower_dentry->d_inode->i_op->getxattr(lower_dentry, name, value,
+	mutex_lock(&d_inode(lower_dentry)->i_mutex);
+	rc = d_inode(lower_dentry)->i_op->getxattr(lower_dentry, name, value,
 						   size);
-	mutex_unlock(&lower_dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(lower_dentry)->i_mutex);
 out:
 	return rc;
 }
@@ -1068,13 +1068,13 @@ ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size)
 	struct dentry *lower_dentry;
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!lower_dentry->d_inode->i_op->listxattr) {
+	if (!d_inode(lower_dentry)->i_op->listxattr) {
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
-	mutex_lock(&lower_dentry->d_inode->i_mutex);
-	rc = lower_dentry->d_inode->i_op->listxattr(lower_dentry, list, size);
-	mutex_unlock(&lower_dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(lower_dentry)->i_mutex);
+	rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size);
+	mutex_unlock(&d_inode(lower_dentry)->i_mutex);
 out:
 	return rc;
 }
@@ -1085,13 +1085,13 @@ static int ecryptfs_removexattr(struct dentry *dentry, const char *name)
 	struct dentry *lower_dentry;
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!lower_dentry->d_inode->i_op->removexattr) {
+	if (!d_inode(lower_dentry)->i_op->removexattr) {
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
-	mutex_lock(&lower_dentry->d_inode->i_mutex);
-	rc = lower_dentry->d_inode->i_op->removexattr(lower_dentry, name);
-	mutex_unlock(&lower_dentry->d_inode->i_mutex);
+	mutex_lock(&d_inode(lower_dentry)->i_mutex);
+	rc = d_inode(lower_dentry)->i_op->removexattr(lower_dentry, name);
+	mutex_unlock(&d_inode(lower_dentry)->i_mutex);
 out:
 	return rc;
 }