[PATCH 09/11] vfs: error out -EAGAIN if atime needs to be updated
From: Hao Xu <hidden>
Date: 2023-08-27 13:36:15
Also in:
bpf, io-uring, linux-block, linux-btrfs, linux-cifs, linux-ext4, linux-f2fs-devel, linux-fsdevel, linux-mm, linux-nfs, linux-s390, linux-unionfs, linux-xfs, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
From: Hao Xu <redacted> To enforce nowait semantics, error out -EAGAIN if atime needs to be updated. Signed-off-by: Hao Xu <redacted> --- 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