From 19298f48694987fac843261c84e24834c255b451 Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Thu, 10 Oct 2024 09:10:04 +0200 Subject: [PATCH] futex: Use atomic64_inc_return() in get_inode_sequence_number() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 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. Signed-off-by: Uros Bizjak Signed-off-by: Thomas Gleixner Reviewed-by: André Almeida Link: https://lore.kernel.org/all/20241010071023.21913-1-ubizjak@gmail.com --- kernel/futex/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/futex/core.c b/kernel/futex/core.c index 136768ae2637..3146730e55f7 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -181,7 +181,7 @@ static u64 get_inode_sequence_number(struct inode *inode) return old; for (;;) { - u64 new = atomic64_add_return(1, &i_seq); + u64 new = atomic64_inc_return(&i_seq); if (WARN_ON_ONCE(!new)) continue; -- 2.51.0