[PATCH 08/10] ocfs2: honor AT_STATX_DONT_SYNC

From	Miklos Szeredi <mszeredi@redhat.com>
Newsgroups	linux.kernel
Subject	[PATCH 08/10] ocfs2: honor AT_STATX_DONT_SYNC
Date	2017-09-20 10:50 +0200
Message-ID	<urIRI-Bk-25@gated-at.bofh.it> (permalink)
References	<urIRH-Bk-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
---
 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

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[PATCH 08/10] ocfs2: honor AT_STATX_DONT_SYNC Miklos Szeredi <mszeredi@redhat.com> - 2017-09-20 10:50 +0200

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