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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-23 20:04:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-23 20:04:33 -0700 |
| commit | 329f0a8a35a664fb33f58f10538f5440ee19c54e (patch) | |
| tree | 270e7764e6fe54c982626bd2af294cedf4afbc5f /drivers/dma-buf/sync_file.c | |
| parent | a5fa2660d787d8416f426cd622778a5d8851ac36 (diff) | |
| parent | 520eccdfe187591a51ea9ab4c1a024ae4d0f68d9 (diff) | |
| download | linux-329f0a8a35a664fb33f58f10538f5440ee19c54e.tar.gz linux-329f0a8a35a664fb33f58f10538f5440ee19c54e.tar.bz2 linux-329f0a8a35a664fb33f58f10538f5440ee19c54e.zip | |
Merge 4.13-rc2 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma-buf/sync_file.c')
| -rw-r--r-- | drivers/dma-buf/sync_file.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index 545e2c5c4815..d7e219d2669d 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -391,7 +391,13 @@ static void sync_fill_fence_info(struct dma_fence *fence, sizeof(info->driver_name)); info->status = dma_fence_get_status(fence); - info->timestamp_ns = ktime_to_ns(fence->timestamp); + while (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) && + !test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags)) + cpu_relax(); + info->timestamp_ns = + test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags) ? + ktime_to_ns(fence->timestamp) : + ktime_set(0, 0); } static long sync_file_ioctl_fence_info(struct sync_file *sync_file, |