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| author | Uros Bizjak <[email protected]> | 2024-10-07 08:37:52 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-11-06 21:36:37 +0000 |
| commit | 777620b890d783c6575f172041f390c4c075b666 (patch) | |
| tree | 21013fe801bd083609e57166d472670dcabc104a | |
| parent | fs/proc/kcore.c: fix coccinelle reported ERROR instances (diff) | |
| download | kernel-777620b890d783c6575f172041f390c4c075b666.tar.gz kernel-777620b890d783c6575f172041f390c4c075b666.zip | |
dma-buf: use atomic64_inc_return() in dma_buf_getfile()
Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref) to
use optimized implementation and ease register pressure around the
primitive for targets that implement optimized variant.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Uros Bizjak <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: "Christian König" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | drivers/dma-buf/dma-buf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 8892bc701a66..a3649db76add 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -558,7 +558,7 @@ static struct file *dma_buf_getfile(size_t size, int flags) * Override ->i_ino with the unique and dmabuffs specific * value. */ - inode->i_ino = atomic64_add_return(1, &dmabuf_inode); + inode->i_ino = atomic64_inc_return(&dmabuf_inode); flags &= O_ACCMODE | O_NONBLOCK; file = alloc_file_pseudo(inode, dma_buf_mnt, "dmabuf", flags, &dma_buf_fops); |