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Message-Id: <20080926175807t-sato@mail.jp.nec.com>
Date: Fri, 26 Sep 2008 17:58:06 +0900
From: Takashi Sato <t-sato@...jp.nec.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Christoph Hellwig <hch@...radead.org>,
"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
"dm-devel@...hat.com" <dm-devel@...hat.com>,
"viro@...IV.linux.org.uk" <viro@...IV.linux.org.uk>,
"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
"xfs@....sgi.com" <xfs@....sgi.com>,
"axboe@...nel.dk" <axboe@...nel.dk>,
"mtk.manpages@...glemail.com" <mtk.manpages@...glemail.com>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/10] xfs: Fix error handling in write_super_lockfs/unlockfs
Changed write_super_lockfs so that it returns an error in case of an failure.
unlockfs always returns 0.
Signed-off-by: Eric Sandeen <sandeen@...deen.net>
Signed-off-by: Takashi Sato <t-sato@...jp.nec.com>
Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@...jp.nec.com>
---
linux-2.6/xfs_super.c | 8 ++++----
xfs_fsops.c | 11 +++++++----
xfs_fsops.h | 2 +-
3 files changed, 12 insertions(+), 9 deletions(-)
diff -uprN -X linux-2.6.27-rc7-lockfs-ext4/Documentation/dontdiff linux-2.6.27-rc7-lockfs-ext4/fs/xfs/linux-2.6/xfs_supe
r.c linux-2.6.27-rc7-lockfs-xfs/fs/xfs/linux-2.6/xfs_super.c
--- linux-2.6.27-rc7-lockfs-ext4/fs/xfs/linux-2.6/xfs_super.c 2008-09-22 07:29:55.000000000 +0900
+++ linux-2.6.27-rc7-lockfs-xfs/fs/xfs/linux-2.6/xfs_super.c 2008-09-26 20:43:42.000000000 +0900
@@ -1351,14 +1351,14 @@ xfs_fs_remount(
* need to take care of themetadata. Once that's done write a dummy
* record to dirty the log in case of a crash while frozen.
*/
-STATIC void
-xfs_fs_lockfs(
+STATIC int
+xfs_fs_freeze(
struct super_block *sb)
{
struct xfs_mount *mp = XFS_M(sb);
xfs_attr_quiesce(mp);
- xfs_fs_log_dummy(mp);
+ return -xfs_fs_log_dummy(mp);
}
STATIC int
@@ -1847,7 +1847,7 @@ static struct super_operations xfs_super
.put_super = xfs_fs_put_super,
.write_super = xfs_fs_write_super,
.sync_fs = xfs_fs_sync_super,
- .write_super_lockfs = xfs_fs_lockfs,
+ .freeze_fs = xfs_fs_freeze,
.statfs = xfs_fs_statfs,
.remount_fs = xfs_fs_remount,
.show_options = xfs_fs_show_options,
diff -uprN -X linux-2.6.27-rc7-lockfs-ext4/Documentation/dontdiff linux-2.6.27-rc7-lockfs-ext4/fs/xfs/xfs_fsops.c linux-
2.6.27-rc7-lockfs-xfs/fs/xfs/xfs_fsops.c
--- linux-2.6.27-rc7-lockfs-ext4/fs/xfs/xfs_fsops.c 2008-09-22 07:29:55.000000000 +0900
+++ linux-2.6.27-rc7-lockfs-xfs/fs/xfs/xfs_fsops.c 2008-09-26 20:39:14.000000000 +0900
@@ -589,17 +589,19 @@ out:
return 0;
}
-void
+int
xfs_fs_log_dummy(
xfs_mount_t *mp)
{
xfs_trans_t *tp;
xfs_inode_t *ip;
+ int error;
tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
- if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
+ error = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
+ if (error) {
xfs_trans_cancel(tp, 0);
- return;
+ return error;
}
ip = mp->m_rootip;
@@ -609,9 +611,10 @@ xfs_fs_log_dummy(
xfs_trans_ihold(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
xfs_trans_set_sync(tp);
- xfs_trans_commit(tp, 0);
+ error = xfs_trans_commit(tp, 0);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ return error;
}
int
diff -uprN -X linux-2.6.27-rc7-lockfs-ext4/Documentation/dontdiff linux-2.6.27-rc7-lockfs-ext4/fs/xfs/xfs_fsops.h linux-
2.6.27-rc7-lockfs-xfs/fs/xfs/xfs_fsops.h
--- linux-2.6.27-rc7-lockfs-ext4/fs/xfs/xfs_fsops.h 2008-09-22 07:29:55.000000000 +0900
+++ linux-2.6.27-rc7-lockfs-xfs/fs/xfs/xfs_fsops.h 2008-09-26 20:39:14.000000000 +0900
@@ -25,6 +25,6 @@ extern int xfs_fs_counts(xfs_mount_t *mp
extern int xfs_reserve_blocks(xfs_mount_t *mp, __uint64_t *inval,
xfs_fsop_resblks_t *outval);
extern int xfs_fs_goingdown(xfs_mount_t *mp, __uint32_t inflags);
-extern void xfs_fs_log_dummy(xfs_mount_t *mp);
+extern int xfs_fs_log_dummy(xfs_mount_t *mp);
#endif /* __XFS_FSOPS_H__ */
--
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