diff mbox series

[v3,2/4] fs: use fput_close_sync() in close()

Message ID 20250305123644.554845-3-mjguzik@gmail.com (mailing list archive)
State New
Headers show
Series avoid the extra atomic on a ref when closing a fd | expand

Commit Message

Mateusz Guzik March 5, 2025, 12:36 p.m. UTC 
This bumps open+close rate by 1% on Sapphire Rapids by eliding one
atomic.

It would be higher if it was not for several other slowdowns of the same
nature.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
---
 fs/open.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/open.c b/fs/open.c
index a5def5611b2f..f2fcfaeb2232 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1577,7 +1577,7 @@  SYSCALL_DEFINE1(close, unsigned int, fd)
 	 * We're returning to user space. Don't bother
 	 * with any delayed fput() cases.
 	 */
-	__fput_sync(file);
+	fput_close_sync(file);
 
 	if (likely(retval == 0))
 		return 0;