A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

dma-buf/sync_file: add sync_file_get_fence()

Browse source 
Creates a function that given an sync file descriptor returns a
fence containing all fences in the sync_file.

v2: Comments by Daniel Vetter
	- Adapt to new version of fence_collection_init()
	- Hold a reference for the fence we return

v3:
	- Adapt to use fput() directly
	- rename to sync_file_get_fence() as we always return one fence

v4: Adapt to use fence_array

v5: set fence through fence_get()

Signed-off-by: Gustavo Padovan <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Acked-by: Christian König <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
This commit is contained in:
Gustavo Padovan 2016-08-05 10:39:36 -03:00 • committed by Sumit Semwal
commit 972526a409
2 changed files with 24 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

23
drivers/dma-buf/sync_file.c
View file

@ -116,6 +116,29 @@ err:
return NULL;
}
/**
* sync_file_get_fence - get the fence related to the sync_file fd
* @fd: sync_file fd to get the fence from
*
* Ensures @fd references a valid sync_file and returns a fence that
* represents all fence in the sync_file. On error NULL is returned.
*/
struct fence *sync_file_get_fence(int fd)
{
struct sync_file *sync_file;
struct fence *fence;
sync_file = sync_file_fdget(fd);
if (!sync_file)
return NULL;
fence = fence_get(sync_file->fence);
fput(sync_file->file);
return fence;
}
EXPORT_SYMBOL(sync_file_get_fence);
static int sync_file_set_fence(struct sync_file *sync_file,
struct fence **fences, int num_fences)
{