linux-kernel - [PATCH 4.19 472/639] ceph: fix "ceph.dir.rctime" vxattr value

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Message-Id: <20200124093146.764584528@linuxfoundation.org>
Date:   Fri, 24 Jan 2020 10:30:42 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, David Disseldorp <ddiss@...e.de>,
        Ilya Dryomov <idryomov@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 472/639] ceph: fix "ceph.dir.rctime" vxattr value

From: David Disseldorp <ddiss@...e.de>

[ Upstream commit 718807289d4130be1fe13f24f018733116958070 ]

The vxattr value incorrectly places a "09" prefix to the nanoseconds
field, instead of providing it as a zero-pad width specifier after '%'.

Fixes: 3489b42a72a4 ("ceph: fix three bugs, two in ceph_vxattrcb_file_layout()")
Link: https://tracker.ceph.com/issues/39943
Signed-off-by: David Disseldorp <ddiss@...e.de>
Reviewed-by: Ilya Dryomov <idryomov@...il.com>
Signed-off-by: Ilya Dryomov <idryomov@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/ceph/xattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 5e4f3f833e85e..a09ce27ab2204 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -221,7 +221,7 @@ static size_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,
 static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
 				       size_t size)
 {
-	return snprintf(val, size, "%lld.09%ld", ci->i_rctime.tv_sec,
+	return snprintf(val, size, "%lld.%09ld", ci->i_rctime.tv_sec,
 			ci->i_rctime.tv_nsec);
 }
 
-- 
2.20.1