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[PATCH 05/10] gfs2: honor AT_STATX_DONT_SYNC

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  [PATCH 05/10] gfs2: honor AT_STATX_DONT_SYNC Miklos Szeredi <mszeredi@redhat.com> - 2017-09-20 10:50 +0200

#1735640 — [PATCH 05/10] gfs2: honor AT_STATX_DONT_SYNC

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@redhat.com>
Cc: Bob Peterson <rpeterso@redhat.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 863749e29bf9..c59d36a3b724 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1989,7 +1989,8 @@ static int gfs2_getattr(const struct path *path, struct kstat *stat,
 	int error;
 
 	gfs2_holder_mark_uninitialized(&gh);
-	if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) {
+	if (!(flags & AT_STATX_DONT_SYNC) &&
+	    gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) {
 		error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
 		if (error)
 			return error;
-- 
2.5.5

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