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staging/android: move sync_file functions comments to sync.c 

To keep comments in line with drivers/dma-buf/ move all sync_file comments
to sync.c.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo Padovan 2016-04-28 10:46:50 -03:00 committed by Greg Kroah-Hartman
parent 2a7c1db557
commit 696f74cf54
2 changed files with 25 additions and 32 deletions
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26
drivers/staging/android/sync.c
View File

@ -173,7 +173,14 @@ static void fence_check_cb_func(struct fence *f, struct fence_cb *cb)
wake_up_all(&sync_file->wq);
}
/* TODO: implement a create which takes more that one fence */
/**
* sync_fence_create() - creates a sync fence
* @name: name of fence to create
* @fence: fence to add to the sync_fence
*
* Creates a sync_file containg @fence. Once this is called, the sync_file
* takes ownership of @fence.
*/
struct sync_file *sync_file_create(const char *name, struct fence *fence)
{
struct sync_file *sync_file;
@ -198,6 +205,13 @@ struct sync_file *sync_file_create(const char *name, struct fence *fence)
}
EXPORT_SYMBOL(sync_file_create);
/**
* sync_file_fdget() - get a sync_file from an fd
* @fd: fd referencing a fence
*
* Ensures @fd references a valid sync_file, increments the refcount of the
* backing file. Returns the sync_file or NULL in case of error.
*/
struct sync_file *sync_file_fdget(int fd)
{
struct file *file = fget(fd);
@ -229,6 +243,16 @@ static void sync_file_add_pt(struct sync_file *sync_file, int *i,
}
}
/**
* sync_file_merge() - merge two sync_files
* @name: name of new fence
* @a: sync_file a
* @b: sync_file b
*
* Creates a new sync_file which contains copies of all the fences in both
* @a and @b. @a and @b remain valid, independent sync_file. Returns the
* new merged sync_file or NULL in case of error.
*/
struct sync_file *sync_file_merge(const char *name,
struct sync_file *a, struct sync_file *b)
{

31
drivers/staging/android/sync.h
View File

@ -167,40 +167,9 @@ void sync_timeline_signal(struct sync_timeline *obj);
*/
struct fence *sync_pt_create(struct sync_timeline *parent, int size);
/**
* sync_fence_create() - creates a sync fence
* @name: name of fence to create
* @fence: fence to add to the sync_fence
*
* Creates a sync_file containg @fence. Once this is called, the sync_file
* takes ownership of @fence.
*/
struct sync_file *sync_file_create(const char *name, struct fence *fence);
/*
* API for sync_file consumers
*/
/**
* sync_file_merge() - merge two sync_files
* @name: name of new fence
* @a: sync_file a
* @b: sync_file b
*
* Creates a new sync_file which contains copies of all the fences in both
* @a and @b. @a and @b remain valid, independent sync_file. Returns the
* new merged sync_file or NULL in case of error.
*/
struct sync_file *sync_file_merge(const char *name,
struct sync_file *a, struct sync_file *b);
/**
* sync_file_fdget() - get a sync_file from an fd
* @fd: fd referencing a fence
*
* Ensures @fd references a valid sync_file, increments the refcount of the
* backing file. Returns the sync_file or NULL in case of error.
*/
struct sync_file *sync_file_fdget(int fd);
#ifdef CONFIG_DEBUG_FS