[PATCH 08/10] ocfs2: honor AT_STATX_DONT_SYNC

From: Miklos Szeredi
Date: Wed Sep 20 2017 - 04:41:16 EST


The description of this flag says "Don't sync attributes with the server".
In other words: always use the attributes cached in the kernel and don't
send network or local messages to refresh the attributes.

Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
---
fs/ocfs2/file.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 6e41fc8fabbe..2d248d71c275 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1307,11 +1307,13 @@ int ocfs2_getattr(const struct path *path, struct kstat *stat,
struct ocfs2_super *osb = sb->s_fs_info;
int err;

- err = ocfs2_inode_revalidate(path->dentry);
- if (err) {
- if (err != -ENOENT)
- mlog_errno(err);
- goto bail;
+ if (!(flags & AT_STATX_DONT_SYNC)) {
+ err = ocfs2_inode_revalidate(path->dentry);
+ if (err) {
+ if (err != -ENOENT)
+ mlog_errno(err);
+ goto bail;
+ }
}

generic_fillattr(inode, stat);
--
2.5.5