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Revert "dma-buf/sync-file: Avoid enable fence signaling if poll(.timeout=0)"

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This reverts commit ecebca79f6.

Do not enable fence callback on poll() when using fence_array causes the
fence_array to not signal.

For now we will revert the change and enable signaling everytime time
poll is called with timeout=0 as well.

Cc: Chris Wilson <[email protected]>
Signed-off-by: Gustavo Padovan <[email protected]>
Acked-by: Chris Wilson <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
This commit is contained in:
Gustavo Padovan 2016-11-18 17:26:43 +09:00 • committed by Daniel Vetter
commit 069cad6d02
1 changed files with 1 additions and 2 deletions
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3
drivers/dma-buf/sync_file.c
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@ -308,8 +308,7 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait)
poll_wait(file, &sync_file->wq, wait);
if (!poll_does_not_wait(wait) &&
!test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
if (!test_and_set_bit(POLL_ENABLED, &sync_file->fence->flags)) {
if (dma_fence_add_callback(sync_file->fence, &sync_file->cb,
fence_check_cb_func) < 0)
wake_up_all(&sync_file->wq);