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dma-buf: use atomic64_inc_return() in dma_buf_getfile()

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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/20241007083921.47525-1-ubizjak@gmail.com
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Uros Bizjak 2024-10-07 10:37:52 +02:00 committed by Andrew Morton
parent 82e33f249f
commit 777620b890
1 changed files with 1 additions and 1 deletions
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2
drivers/dma-buf/dma-buf.c
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@ -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);