Merge tag 'befs-v4.10-rc1' of git://github.com/luisbg/linux-befs

Pull befs updates from Luis de Bethencourt:
 "A series of small fixes and adding NFS export support"

* tag 'befs-v4.10-rc1' of git://github.com/luisbg/linux-befs:
  befs: add NFS export support
  befs: remove trailing whitespaces
  befs: remove signatures from comments
  befs: fix style issues in header files
  befs: fix style issues in linuxvfs.c
  befs: fix typos in linuxvfs.c
  befs: fix style issues in io.c
  befs: fix style issues in inode.c
  befs: fix style issues in debug.c

fs/befs/befs.h

@@ -129,6 +129,7 @@ static inline befs_inode_addr
 blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)
 {
 	befs_inode_addr iaddr;
+
 	iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift;
 	iaddr.start =
 	    blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift);
@@ -140,7 +141,7 @@ blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)
 static inline unsigned int
 befs_iaddrs_per_block(struct super_block *sb)
 {
-	return BEFS_SB(sb)->block_size / sizeof (befs_disk_inode_addr);
+	return BEFS_SB(sb)->block_size / sizeof(befs_disk_inode_addr);
 }
 
 #include "endian.h"

fs/befs/befs_fs_types.h

@@ -55,12 +55,12 @@ enum super_flags {
 };
 
 #define BEFS_BYTEORDER_NATIVE 0x42494745
-#define BEFS_BYTEORDER_NATIVE_LE (__force fs32)cpu_to_le32(BEFS_BYTEORDER_NATIVE)
-#define BEFS_BYTEORDER_NATIVE_BE (__force fs32)cpu_to_be32(BEFS_BYTEORDER_NATIVE)
+#define BEFS_BYTEORDER_NATIVE_LE ((__force fs32)cpu_to_le32(BEFS_BYTEORDER_NATIVE))
+#define BEFS_BYTEORDER_NATIVE_BE ((__force fs32)cpu_to_be32(BEFS_BYTEORDER_NATIVE))
 
 #define BEFS_SUPER_MAGIC BEFS_SUPER_MAGIC1
-#define BEFS_SUPER_MAGIC1_LE (__force fs32)cpu_to_le32(BEFS_SUPER_MAGIC1)
-#define BEFS_SUPER_MAGIC1_BE (__force fs32)cpu_to_be32(BEFS_SUPER_MAGIC1)
+#define BEFS_SUPER_MAGIC1_LE ((__force fs32)cpu_to_le32(BEFS_SUPER_MAGIC1))
+#define BEFS_SUPER_MAGIC1_BE ((__force fs32)cpu_to_be32(BEFS_SUPER_MAGIC1))
 
 /*
  * Flags of inode
@@ -79,7 +79,7 @@ enum inode_flags {
 	BEFS_INODE_WAS_WRITTEN = 0x00020000,
 	BEFS_NO_TRANSACTION = 0x00040000,
 };
-/* 
+/*
  * On-Disk datastructures of BeFS
  */
 
@@ -139,7 +139,7 @@ typedef struct {
 
 } PACKED befs_super_block;
 
-/* 
+/*
  * Note: the indirect and dbl_indir block_runs may
  * be longer than one block!
  */

fs/befs/btree.c

@@ -12,8 +12,8 @@
  *
  * Dominic Giampaolo, author of "Practical File System
  * Design with the Be File System", for such a helpful book.
- * 
- * Marcus J. Ranum, author of the b+tree package in 
+ *
+ * Marcus J. Ranum, author of the b+tree package in
  * comp.sources.misc volume 10. This code is not copied from that
  * work, but it is partially based on it.
  *
@@ -38,38 +38,38 @@
  */
 
 /* Befs B+tree structure:
- * 
+ *
  * The first thing in the tree is the tree superblock. It tells you
  * all kinds of useful things about the tree, like where the rootnode
  * is located, and the size of the nodes (always 1024 with current version
  * of BeOS).
  *
  * The rest of the tree consists of a series of nodes. Nodes contain a header
- * (struct befs_btree_nodehead), the packed key data, an array of shorts 
+ * (struct befs_btree_nodehead), the packed key data, an array of shorts
  * containing the ending offsets for each of the keys, and an array of
- * befs_off_t values. In interior nodes, the keys are the ending keys for 
- * the childnode they point to, and the values are offsets into the 
- * datastream containing the tree. 
+ * befs_off_t values. In interior nodes, the keys are the ending keys for
+ * the childnode they point to, and the values are offsets into the
+ * datastream containing the tree.
  */
 
 /* Note:
- * 
- * The book states 2 confusing things about befs b+trees. First, 
+ *
+ * The book states 2 confusing things about befs b+trees. First,
  * it states that the overflow field of node headers is used by internal nodes
  * to point to another node that "effectively continues this one". Here is what
  * I believe that means. Each key in internal nodes points to another node that
- * contains key values less than itself. Inspection reveals that the last key 
- * in the internal node is not the last key in the index. Keys that are 
- * greater than the last key in the internal node go into the overflow node. 
+ * contains key values less than itself. Inspection reveals that the last key
+ * in the internal node is not the last key in the index. Keys that are
+ * greater than the last key in the internal node go into the overflow node.
  * I imagine there is a performance reason for this.
  *
- * Second, it states that the header of a btree node is sufficient to 
- * distinguish internal nodes from leaf nodes. Without saying exactly how. 
+ * Second, it states that the header of a btree node is sufficient to
+ * distinguish internal nodes from leaf nodes. Without saying exactly how.
  * After figuring out the first, it becomes obvious that internal nodes have
  * overflow nodes and leafnodes do not.
  */
 
-/* 
+/*
  * Currently, this code is only good for directory B+trees.
  * In order to be used for other BFS indexes, it needs to be extended to handle
  * duplicate keys and non-string keytypes (int32, int64, float, double).
@@ -237,8 +237,8 @@ befs_bt_read_node(struct super_block *sb, const befs_data_stream *ds,
  * with @key (usually the disk block number of an inode).
  *
  * On failure, returns BEFS_ERR or BEFS_BT_NOT_FOUND.
- * 
- * Algorithm: 
+ *
+ * Algorithm:
  *   Read the superblock and rootnode of the b+tree.
  *   Drill down through the interior nodes using befs_find_key().
  *   Once at the correct leaf node, use befs_find_key() again to get the
@@ -402,12 +402,12 @@ befs_find_key(struct super_block *sb, struct befs_btree_node *node,
  *
  * Here's how it works: Key_no is the index of the key/value pair to
  * return in keybuf/value.
- * Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is 
+ * Bufsize is the size of keybuf (BEFS_NAME_LEN+1 is a good size). Keysize is
  * the number of characters in the key (just a convenience).
  *
  * Algorithm:
  *   Get the first leafnode of the tree. See if the requested key is in that
- *   node. If not, follow the node->right link to the next leafnode. Repeat 
+ *   node. If not, follow the node->right link to the next leafnode. Repeat
  *   until the (key_no)th key is found or the tree is out of keys.
  */
 int
@@ -536,7 +536,7 @@ befs_btree_read(struct super_block *sb, const befs_data_stream *ds,
  * @node_off: Pointer to offset of current node within datastream. Modified
  * 		by the function.
  *
- * Helper function for btree traverse. Moves the current position to the 
+ * Helper function for btree traverse. Moves the current position to the
  * start of the first leaf node.
  *
  * Also checks for an empty tree. If there are no keys, returns BEFS_BT_EMPTY.
@@ -592,10 +592,10 @@ befs_btree_seekleaf(struct super_block *sb, const befs_data_stream *ds,
 }
 
 /**
- * befs_leafnode - Determine if the btree node is a leaf node or an 
+ * befs_leafnode - Determine if the btree node is a leaf node or an
  * interior node
  * @node: Pointer to node structure to test
- * 
+ *
  * Return 1 if leaf, 0 if interior
  */
 static int
@@ -656,7 +656,7 @@ befs_bt_valarray(struct befs_btree_node *node)
  * @node: Pointer to the node structure to find the keydata array within
  *
  * Returns a pointer to the start of the keydata array
- * of the node pointed to by the node header 
+ * of the node pointed to by the node header
  */
 static char *
 befs_bt_keydata(struct befs_btree_node *node)
@@ -702,7 +702,7 @@ befs_bt_get_key(struct super_block *sb, struct befs_btree_node *node,
 
 /**
  * befs_compare_strings - compare two strings
- * @key1: pointer to the first key to be compared 
+ * @key1: pointer to the first key to be compared
  * @keylen1: length in bytes of key1
  * @key2: pointer to the second key to be compared
  * @keylen2: length in bytes of key2

fs/befs/btree.h

@@ -1,13 +1,11 @@
 /*
  * btree.h
- * 
+ *
  */
 
-
 int befs_btree_find(struct super_block *sb, const befs_data_stream *ds,
-		    const char *key, befs_off_t * value);
+		    const char *key, befs_off_t *value);
 
 int befs_btree_read(struct super_block *sb, const befs_data_stream *ds,
 		    loff_t key_no, size_t bufsize, char *keybuf,
-		    size_t * keysize, befs_off_t * value);
-
+		    size_t *keysize, befs_off_t *value);

fs/befs/datastream.c

@@ -84,13 +84,11 @@ befs_read_datastream(struct super_block *sb, const befs_data_stream *ds,
  *
  * Takes a file position and gives back a brun who's starting block
  * is block number fblock of the file.
- * 
+ *
  * Returns BEFS_OK or BEFS_ERR.
- * 
+ *
  * Calls specialized functions for each of the three possible
  * datastream regions.
- *
- * 2001-11-15 Will Dyson
  */
 int
 befs_fblock2brun(struct super_block *sb, const befs_data_stream *data,
@@ -120,7 +118,7 @@ befs_fblock2brun(struct super_block *sb, const befs_data_stream *data,
 
 /**
  * befs_read_lsmylink - read long symlink from datastream.
- * @sb: Filesystem superblock 
+ * @sb: Filesystem superblock
  * @ds: Datastream to read from
  * @buff: Buffer in which to place long symlink data
  * @len: Length of the long symlink in bytes

fs/befs/datastream.h

@@ -5,10 +5,10 @@
 
 struct buffer_head *befs_read_datastream(struct super_block *sb,
 					 const befs_data_stream *ds,
-					 befs_off_t pos, uint * off);
+					 befs_off_t pos, uint *off);
 
 int befs_fblock2brun(struct super_block *sb, const befs_data_stream *data,
-		     befs_blocknr_t fblock, befs_block_run * run);
+		     befs_blocknr_t fblock, befs_block_run *run);
 
 size_t befs_read_lsymlink(struct super_block *sb, const befs_data_stream *data,
 			  void *buff, befs_off_t len);
@@ -17,4 +17,3 @@ befs_blocknr_t befs_count_blocks(struct super_block *sb,
 			  const befs_data_stream *ds);
 
 extern const befs_inode_addr BAD_IADDR;
-

fs/befs/debug.c

@@ -1,6 +1,6 @@
 /*
  *  linux/fs/befs/debug.c
- * 
+ *
  * Copyright (C) 2001 Will Dyson (will_dyson at pobox.com)
  *
  * With help from the ntfs-tng driver by Anton Altparmakov
@@ -57,6 +57,7 @@ befs_debug(const struct super_block *sb, const char *fmt, ...)
 
 	struct va_format vaf;
 	va_list args;
+
 	va_start(args, fmt);
 	vaf.fmt = fmt;
 	vaf.va = &args;
@@ -67,7 +68,7 @@ befs_debug(const struct super_block *sb, const char *fmt, ...)
 }
 
 void
-befs_dump_inode(const struct super_block *sb, befs_inode * inode)
+befs_dump_inode(const struct super_block *sb, befs_inode *inode)
 {
 #ifdef CONFIG_BEFS_DEBUG
 
@@ -151,7 +152,7 @@ befs_dump_inode(const struct super_block *sb, befs_inode * inode)
  */
 
 void
-befs_dump_super_block(const struct super_block *sb, befs_super_block * sup)
+befs_dump_super_block(const struct super_block *sb, befs_super_block *sup)
 {
 #ifdef CONFIG_BEFS_DEBUG
 
@@ -202,7 +203,7 @@ befs_dump_super_block(const struct super_block *sb, befs_super_block * sup)
 #if 0
 /* unused */
 void
-befs_dump_small_data(const struct super_block *sb, befs_small_data * sd)
+befs_dump_small_data(const struct super_block *sb, befs_small_data *sd)
 {
 }
 
@@ -221,7 +222,8 @@ befs_dump_run(const struct super_block *sb, befs_disk_block_run run)
 #endif  /*  0  */
 
 void
-befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super * super)
+befs_dump_index_entry(const struct super_block *sb,
+		      befs_disk_btree_super *super)
 {
 #ifdef CONFIG_BEFS_DEBUG
 
@@ -242,7 +244,7 @@ befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super * supe
 }
 
 void
-befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead * node)
+befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *node)
 {
 #ifdef CONFIG_BEFS_DEBUG
 

fs/befs/inode.c

@@ -1,6 +1,6 @@
 /*
  * inode.c
- * 
+ *
  * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
  */
 
@@ -10,12 +10,12 @@
 #include "inode.h"
 
 /*
-	Validates the correctness of the befs inode
-	Returns BEFS_OK if the inode should be used, otherwise
-	returns BEFS_BAD_INODE
-*/
+ * Validates the correctness of the befs inode
+ * Returns BEFS_OK if the inode should be used, otherwise
+ * returns BEFS_BAD_INODE
+ */
 int
-befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
+befs_check_inode(struct super_block *sb, befs_inode *raw_inode,
 		 befs_blocknr_t inode)
 {
 	u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1);

fs/befs/inode.h

@@ -1,8 +1,7 @@
 /*
  * inode.h
- * 
+ *
  */
 
-int befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
+int befs_check_inode(struct super_block *sb, befs_inode *raw_inode,
 		     befs_blocknr_t inode);
-

fs/befs/io.c

@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com
  *
- * Based on portions of file.c and inode.c 
+ * Based on portions of file.c and inode.c
  * by Makoto Kato (m_kato@ga2.so-net.ne.jp)
  *
  * Many thanks to Dominic Giampaolo, author of Practical File System
@@ -19,8 +19,7 @@
 /*
  * Converts befs notion of disk addr to a disk offset and uses
  * linux kernel function sb_bread() to get the buffer containing
- * the offset. -Will Dyson
- *
+ * the offset.
  */
 
 struct buffer_head *
@@ -55,7 +54,7 @@ befs_bread_iaddr(struct super_block *sb, befs_inode_addr iaddr)
 	befs_debug(sb, "<--- %s", __func__);
 	return bh;
 
-      error:
+error:
 	befs_debug(sb, "<--- %s ERROR", __func__);
 	return NULL;
 }

fs/befs/io.h

@@ -4,4 +4,3 @@
 
 struct buffer_head *befs_bread_iaddr(struct super_block *sb,
 				     befs_inode_addr iaddr);
-

fs/befs/linuxvfs.c

@@ -18,6 +18,7 @@
 #include <linux/parser.h>
 #include <linux/namei.h>
 #include <linux/sched.h>
+#include <linux/exportfs.h>
 
 #include "befs.h"
 #include "btree.h"
@@ -37,7 +38,8 @@ static int befs_readdir(struct file *, struct dir_context *);
 static int befs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 static int befs_readpage(struct file *file, struct page *page);
 static sector_t befs_bmap(struct address_space *mapping, sector_t block);
-static struct dentry *befs_lookup(struct inode *, struct dentry *, unsigned int);
+static struct dentry *befs_lookup(struct inode *, struct dentry *,
+				  unsigned int);
 static struct inode *befs_iget(struct super_block *, unsigned long);
 static struct inode *befs_alloc_inode(struct super_block *sb);
 static void befs_destroy_inode(struct inode *inode);
@@ -51,6 +53,10 @@ static void befs_put_super(struct super_block *);
 static int befs_remount(struct super_block *, int *, char *);
 static int befs_statfs(struct dentry *, struct kstatfs *);
 static int parse_options(char *, struct befs_mount_options *);
+static struct dentry *befs_fh_to_dentry(struct super_block *sb,
+				struct fid *fid, int fh_len, int fh_type);
+static struct dentry *befs_fh_to_parent(struct super_block *sb,
+				struct fid *fid, int fh_len, int fh_type);
 
 static const struct super_operations befs_sops = {
 	.alloc_inode	= befs_alloc_inode,	/* allocate a new inode */
@@ -83,9 +89,14 @@ static const struct address_space_operations befs_symlink_aops = {
 	.readpage	= befs_symlink_readpage,
 };
 
-/* 
+static const struct export_operations befs_export_operations = {
+	.fh_to_dentry	= befs_fh_to_dentry,
+	.fh_to_parent	= befs_fh_to_parent,
+};
+
+/*
  * Called by generic_file_read() to read a page of data
- * 
+ *
  * In turn, simply calls a generic block read function and
  * passes it the address of befs_get_block, for mapping file
  * positions to disk blocks.
@@ -102,15 +113,13 @@ befs_bmap(struct address_space *mapping, sector_t block)
 	return generic_block_bmap(mapping, block, befs_get_block);
 }
 
-/* 
- * Generic function to map a file position (block) to a 
+/*
+ * Generic function to map a file position (block) to a
  * disk offset (passed back in bh_result).
  *
  * Used by many higher level functions.
  *
  * Calls befs_fblock2brun() in datastream.c to do the real work.
- *
- * -WD 10-26-01
  */
 
 static int
@@ -269,15 +278,15 @@ befs_alloc_inode(struct super_block *sb)
 	struct befs_inode_info *bi;
 
 	bi = kmem_cache_alloc(befs_inode_cachep, GFP_KERNEL);
-        if (!bi)
-                return NULL;
-        return &bi->vfs_inode;
+	if (!bi)
+		return NULL;
+	return &bi->vfs_inode;
 }
 
 static void befs_i_callback(struct rcu_head *head)
 {
 	struct inode *inode = container_of(head, struct inode, i_rcu);
-        kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
+	kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
 }
 
 static void befs_destroy_inode(struct inode *inode)
@@ -287,7 +296,7 @@ static void befs_destroy_inode(struct inode *inode)
 
 static void init_once(void *foo)
 {
-        struct befs_inode_info *bi = (struct befs_inode_info *) foo;
+	struct befs_inode_info *bi = (struct befs_inode_info *) foo;
 
 	inode_init_once(&bi->vfs_inode);
 }
@@ -338,7 +347,7 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
 	/*
 	 * set uid and gid.  But since current BeOS is single user OS, so
 	 * you can change by "uid" or "gid" options.
-	 */   
+	 */
 
 	inode->i_uid = befs_sb->mount_opts.use_uid ?
 		befs_sb->mount_opts.uid :
@@ -353,14 +362,14 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
 	 * BEFS's time is 64 bits, but current VFS is 32 bits...
 	 * BEFS don't have access time. Nor inode change time. VFS
 	 * doesn't have creation time.
-	 * Also, the lower 16 bits of the last_modified_time and 
+	 * Also, the lower 16 bits of the last_modified_time and
 	 * create_time are just a counter to help ensure uniqueness
 	 * for indexing purposes. (PFD, page 54)
 	 */
 
 	inode->i_mtime.tv_sec =
 	    fs64_to_cpu(sb, raw_inode->last_modified_time) >> 16;
-	inode->i_mtime.tv_nsec = 0;   /* lower 16 bits are not a time */	
+	inode->i_mtime.tv_nsec = 0;   /* lower 16 bits are not a time */
 	inode->i_ctime = inode->i_mtime;
 	inode->i_atime = inode->i_mtime;
 
@@ -414,10 +423,10 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
 	unlock_new_inode(inode);
 	return inode;
 
-      unacquire_bh:
+unacquire_bh:
 	brelse(bh);
 
-      unacquire_none:
+unacquire_none:
 	iget_failed(inode);
 	befs_debug(sb, "<--- %s - Bad inode", __func__);
 	return ERR_PTR(-EIO);
@@ -442,7 +451,7 @@ befs_init_inodecache(void)
 }
 
 /* Called at fs teardown.
- * 
+ *
  * Taken from NFS implementation by Al Viro.
  */
 static void
@@ -491,13 +500,10 @@ fail:
 }
 
 /*
- * UTF-8 to NLS charset  convert routine
- * 
+ * UTF-8 to NLS charset convert routine
  *
- * Changed 8/10/01 by Will Dyson. Now use uni2char() / char2uni() rather than
- * the nls tables directly
+ * Uses uni2char() / char2uni() rather than the nls tables directly
  */
-
 static int
 befs_utf2nls(struct super_block *sb, const char *in,
 	     int in_len, char **out, int *out_len)
@@ -521,9 +527,8 @@ befs_utf2nls(struct super_block *sb, const char *in,
 	}
 
 	*out = result = kmalloc(maxlen, GFP_NOFS);
-	if (!*out) {
+	if (!*out)
 		return -ENOMEM;
-	}
 
 	for (i = o = 0; i < in_len; i += utflen, o += unilen) {
 
@@ -546,7 +551,7 @@ befs_utf2nls(struct super_block *sb, const char *in,
 
 	return o;
 
-      conv_err:
+conv_err:
 	befs_error(sb, "Name using character set %s contains a character that "
 		   "cannot be converted to unicode.", nls->charset);
 	befs_debug(sb, "<--- %s", __func__);
@@ -561,18 +566,18 @@ befs_utf2nls(struct super_block *sb, const char *in,
  * @in_len: Length of input string in bytes
  * @out: The output string in UTF-8 format
  * @out_len: Length of the output buffer
- * 
+ *
  * Converts input string @in, which is in the format of the loaded NLS map,
  * into a utf8 string.
- * 
+ *
  * The destination string @out is allocated by this function and the caller is
  * responsible for freeing it with kfree()
- * 
+ *
  * On return, *@out_len is the length of @out in bytes.
  *
  * On success, the return value is the number of utf8 characters written to
  * the output buffer @out.
- *  
+ *
  * On Failure, a negative number coresponding to the error code is returned.
  */
 
@@ -585,9 +590,11 @@ befs_nls2utf(struct super_block *sb, const char *in,
 	wchar_t uni;
 	int unilen, utflen;
 	char *result;
-	/* There're nls characters that will translate to 3-chars-wide UTF-8
-	 * characters, a additional byte is needed to save the final \0
-	 * in special cases */
+	/*
+	 * There are nls characters that will translate to 3-chars-wide UTF-8
+	 * characters, an additional byte is needed to save the final \0
+	 * in special cases
+	 */
 	int maxlen = (3 * in_len) + 1;
 
 	befs_debug(sb, "---> %s\n", __func__);
@@ -624,14 +631,41 @@ befs_nls2utf(struct super_block *sb, const char *in,
 
 	return i;
 
-      conv_err:
-	befs_error(sb, "Name using charecter set %s contains a charecter that "
+conv_err:
+	befs_error(sb, "Name using character set %s contains a character that "
 		   "cannot be converted to unicode.", nls->charset);
 	befs_debug(sb, "<--- %s", __func__);
 	kfree(result);
 	return -EILSEQ;
 }
 
+static struct inode *befs_nfs_get_inode(struct super_block *sb, uint64_t ino,
+					 uint32_t generation)
+{
+	/* No need to handle i_generation */
+	return befs_iget(sb, ino);
+}
+
+/*
+ * Map a NFS file handle to a corresponding dentry
+ */
+static struct dentry *befs_fh_to_dentry(struct super_block *sb,
+				struct fid *fid, int fh_len, int fh_type)
+{
+	return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
+				    befs_nfs_get_inode);
+}
+
+/*
+ * Find the parent for a file specified by NFS handle
+ */
+static struct dentry *befs_fh_to_parent(struct super_block *sb,
+				struct fid *fid, int fh_len, int fh_type)
+{
+	return generic_fh_to_parent(sb, fid, fh_len, fh_type,
+				    befs_nfs_get_inode);
+}
+
 enum {
 	Opt_uid, Opt_gid, Opt_charset, Opt_debug, Opt_err,
 };
@@ -666,6 +700,7 @@ parse_options(char *options, struct befs_mount_options *opts)
 
 	while ((p = strsep(&options, ",")) != NULL) {
 		int token;
+
 		if (!*p)
 			continue;
 
@@ -721,7 +756,7 @@ parse_options(char *options, struct befs_mount_options *opts)
 }
 
 /* This function has the responsibiltiy of getting the
- * filesystem ready for unmounting. 
+ * filesystem ready for unmounting.
  * Basically, we free everything that we allocated in
  * befs_read_inode
  */
@@ -782,8 +817,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	 * Linux 2.4.10 and later refuse to read blocks smaller than
 	 * the logical block size for the device. But we also need to read at
 	 * least 1k to get the second 512 bytes of the volume.
-	 * -WD 10-26-01
-	 */ 
+	 */
 	blocksize = sb_min_blocksize(sb, 1024);
 	if (!blocksize) {
 		if (!silent)
@@ -791,7 +825,8 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 		goto unacquire_priv_sbp;
 	}
 
-	if (!(bh = sb_bread(sb, sb_block))) {
+	bh = sb_bread(sb, sb_block);
+	if (!bh) {
 		if (!silent)
 			befs_error(sb, "unable to read superblock");
 		goto unacquire_priv_sbp;
@@ -816,7 +851,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 
 	brelse(bh);
 
-	if( befs_sb->num_blocks > ~((sector_t)0) ) {
+	if (befs_sb->num_blocks > ~((sector_t)0)) {
 		if (!silent)
 			befs_error(sb, "blocks count: %llu is larger than the host can use",
 					befs_sb->num_blocks);
@@ -831,6 +866,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	/* Set real blocksize of fs */
 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);
 	sb->s_op = &befs_sops;
+	sb->s_export_op = &befs_export_operations;
 	root = befs_iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
 	if (IS_ERR(root)) {
 		ret = PTR_ERR(root);
@@ -861,16 +897,16 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	return 0;
-/*****************/
-      unacquire_bh:
+
+unacquire_bh:
 	brelse(bh);
 
-      unacquire_priv_sbp:
+unacquire_priv_sbp:
 	kfree(befs_sb->mount_opts.iocharset);
 	kfree(sb->s_fs_info);
 	sb->s_fs_info = NULL;
 
-      unacquire_none:
+unacquire_none:
 	return ret;
 }
 
@@ -919,7 +955,7 @@ static struct file_system_type befs_fs_type = {
 	.name		= "befs",
 	.mount		= befs_mount,
 	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,	
+	.fs_flags	= FS_REQUIRES_DEV,
 };
 MODULE_ALIAS_FS("befs");
 
@@ -956,9 +992,9 @@ exit_befs_fs(void)
 }
 
 /*
-Macros that typecheck the init and exit functions,
-ensures that they are called at init and cleanup,
-and eliminates warnings about unused functions.
-*/
+ * Macros that typecheck the init and exit functions,
+ * ensures that they are called at init and cleanup,
+ * and eliminates warnings about unused functions.
+ */
 module_init(init_befs_fs)
 module_exit(exit_befs_fs)

fs/befs/super.h

@@ -2,7 +2,5 @@
  * super.h
  */
 
-int befs_load_sb(struct super_block *sb, befs_super_block * disk_sb);
-
+int befs_load_sb(struct super_block *sb, befs_super_block *disk_sb);
 int befs_check_sb(struct super_block *sb);
-