drm: rename drm_fops.c to drm_file.c

It's not just file ops, but drm_file stuff in general. This is prep
work to extracting a drm_file.h header in the next patch.

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-8-daniel.vetter@ffwll.ch

Documentation/gpu/drm-internals.rst

@@ -298,10 +298,10 @@ over.
 File Operations
 ---------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_fops.c
+.. kernel-doc:: drivers/gpu/drm/drm_file.c
    :doc: file operations
 
-.. kernel-doc:: drivers/gpu/drm/drm_fops.c
+.. kernel-doc:: drivers/gpu/drm/drm_file.c
    :export:
 
 IOCTLs

drivers/gpu/drm/Makefile

@@ -4,7 +4,7 @@
 
 drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_context.o drm_dma.o \
-		drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
+		drm_file.o drm_gem.o drm_ioctl.o drm_irq.o \
 		drm_lock.o drm_memory.o drm_drv.o \
 		drm_scatter.o drm_pci.o \
 		drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \

drivers/gpu/drm/drm_fops.c → drivers/gpu/drm/drm_file.c

@@ -1,7 +1,4 @@
 /*
- * \file drm_fops.c
- * File operations for DRM
- *
  * \author Rickard E. (Rik) Faith <faith@valinux.com>
  * \author Daryll Strauss <daryll@valinux.com>
  * \author Gareth Hughes <gareth@valinux.com>

drivers/gpu/drm/drm_internal.h

@@ -24,7 +24,7 @@
 #define DRM_IF_MAJOR 1
 #define DRM_IF_MINOR 4
 
-/* drm_fops.c */
+/* drm_file.c */
 extern struct mutex drm_global_mutex;
 void drm_lastclose(struct drm_device *dev);
 

include/drm/drmP.h

@@ -689,7 +689,7 @@ extern long drm_compat_ioctl(struct file *filp,
 #endif
 extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
 
-/* File Operations (drm_fops.c) */
+/* File Operations (drm_file.c) */
 int drm_open(struct inode *inode, struct file *filp);
 ssize_t drm_read(struct file *filp, char __user *buffer,
 		 size_t count, loff_t *offset);