drm: Replace filp in ioctl arguments with drm_file *file_priv.

As a fallout, replace filp storage with file_priv storage for "unique
identifier of a client" all over the DRM.  There is a 1:1 mapping, so this
should be a noop.  This could be a minor performance improvement, as everyth
on Linux dereferenced filp to get file_priv anyway, while only the mmap ioct
went the other direction.

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/char/drm/drm_dma.c b/drivers/char/drm/drm_dma.c
index 802fbdbfe1b3..7a8e2fba4678 100644
--- a/drivers/char/drm/drm_dma.c
+++ b/drivers/char/drm/drm_dma.c
@@ -136,7 +136,7 @@ void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
 
         buf->waiting = 0;
         buf->pending = 0;
-        buf->filp = NULL;
+        buf->file_priv = NULL;
         buf->used = 0;
 
         if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE)
@@ -148,11 +148,12 @@ void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
 /**
  * Reclaim the buffers.
  *
- * \param filp file pointer.
+ * \param file_priv DRM file private.
  *
- * Frees each buffer associated with \p filp not already on the hardware.
+ * Frees each buffer associated with \p file_priv not already on the hardware.
  */
-void drm_core_reclaim_buffers(struct drm_device *dev, struct file *filp)
+void drm_core_reclaim_buffers(struct drm_device *dev,
+                              struct drm_file *file_priv)
 {
         struct drm_device_dma *dma = dev->dma;
         int i;
@@ -160,7 +161,7 @@ void drm_core_reclaim_buffers(struct drm_device *dev, struct file *filp)
         if (!dma)
                 return;
         for (i = 0; i < dma->buf_count; i++) {
-                if (dma->buflist[i]->filp == filp) {
+                if (dma->buflist[i]->file_priv == file_priv) {
                         switch (dma->buflist[i]->list) {
                         case DRM_LIST_NONE:
                                 drm_free_buffer(dev, dma->buflist[i]);