Merge tag 'v3.10-rc2' into drm-intel-next-queued

Backmerge Linux 3.10-rc2 since the various (rather trivial) conflicts
grew a bit out of hand. intel_dp.c has the only real functional
conflict since the logic changed while dev_priv->edp.bpp was moved
around.

Also squash in a whitespace fixup from Ben Widawsky for
i915_gem_gtt.c, git seems to do something pretty strange in there
(which I don't fully understand tbh).

Conflicts:
	drivers/gpu/drm/i915/i915_reg.h
	drivers/gpu/drm/i915/intel_dp.c

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 6 insertions, 5 deletions

diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ad1a427b5267..b8809fef61f5 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -27,6 +27,7 @@ struct pipe_buffer {
 
 /**
  *	struct pipe_inode_info - a linux kernel pipe
+ *	@mutex: mutex protecting the whole thing
  *	@wait: reader/writer wait point in case of empty/full pipe
  *	@nrbufs: the number of non-empty pipe buffers in this pipe
  *	@buffers: total number of buffers (should be a power of 2)
@@ -34,26 +35,27 @@ struct pipe_buffer {
  *	@tmp_page: cached released page
  *	@readers: number of current readers of this pipe
  *	@writers: number of current writers of this pipe
+ *	@files: number of struct file refering this pipe (protected by ->i_lock)
  *	@waiting_writers: number of writers blocked waiting for room
  *	@r_counter: reader counter
  *	@w_counter: writer counter
  *	@fasync_readers: reader side fasync
  *	@fasync_writers: writer side fasync
- *	@inode: inode this pipe is attached to
  *	@bufs: the circular array of pipe buffers
  **/
 struct pipe_inode_info {
+	struct mutex mutex;
 	wait_queue_head_t wait;
 	unsigned int nrbufs, curbuf, buffers;
 	unsigned int readers;
 	unsigned int writers;
+	unsigned int files;
 	unsigned int waiting_writers;
 	unsigned int r_counter;
 	unsigned int w_counter;
 	struct page *tmp_page;
 	struct fasync_struct *fasync_readers;
 	struct fasync_struct *fasync_writers;
-	struct inode *inode;
 	struct pipe_buffer *bufs;
 };
 
@@ -144,9 +146,8 @@ int pipe_proc_fn(struct ctl_table *, int, void __user *, size_t *, loff_t *);
 /* Drop the inode semaphore and wait for a pipe event, atomically */
 void pipe_wait(struct pipe_inode_info *pipe);
 
-struct pipe_inode_info * alloc_pipe_info(struct inode * inode);
-void free_pipe_info(struct inode * inode);
-void __free_pipe_info(struct pipe_inode_info *);
+struct pipe_inode_info *alloc_pipe_info(void);
+void free_pipe_info(struct pipe_inode_info *);
 
 /* Generic pipe buffer ops functions */
 void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int);