[PATCH 09/11] vfs: error out -EAGAIN if atime needs to be updated

Hao Xu
2023-08-27T13:35:12Z

From: Hao Xu <howeyxu@tencent.com>

To enforce nowait semantics, error out -EAGAIN if atime needs to be
updated.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
---
fs/inode.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/fs/inode.c b/fs/inode.c
index e83b836f2d09..32d81be65cf9 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1970,6 +1970,9 @@ int touch_atime(const struct path *path, bool nowait)
if (!atime_needs_update(path, inode))
return 0;

+ if (nowait)
+ return -EAGAIN;
+
if (!sb_start_write_trylock(inode->i_sb))
return 0;

--
2.25.1