[PATCH v2 2/4] fs: use fput_close_sync() in close()
From: Mateusz Guzik
Date: Tue Mar 04 2025 - 13:45:11 EST
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@xxxxxxxxx>
---
fs/open.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/open.c b/fs/open.c
index 57e088c01ea4..fc1c6118eb30 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1615,7 +1615,7 @@ 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;
--
2.43.0