From 777620b890d783c6575f172041f390c4c075b666 Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Mon, 7 Oct 2024 10:37:52 +0200 Subject: [PATCH] dma-buf: use atomic64_inc_return() in dma_buf_getfile() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Cc: Sumit Semwal Cc: "Christian König" Signed-off-by: Andrew Morton --- drivers/dma-buf/dma-buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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);