Dave Chinner wrote:

> xfs_fs_log_dummy() currently is void because it had nowhere to
> return errors to. It silently throws away errors because of this.
> Hence the correct thing to do here is to fix xfs_fs_log_dummy()
> to return the errors it currently ignores. i.e. catch the errors
> from xfs_trans_reserve() and xfs_trans_commit() calls in
> xfs_fs_log_dummy().
>
> Cheers,
>
> Dave.
>
Here's that part in case it's helpful Feel free to roll it into
your patch.

-Eric

Make xfs_fs_log_dummy() return errors which can then be returned by
xfs_fs_lockfs(), once it is capable of doing so.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>

---

Index: linux-2.6/fs/xfs/xfs_fsops.c
================================================== =================
--- linux-2.6.orig/fs/xfs/xfs_fsops.c 2008-08-04 15:30:31.000000000 -0500
+++ linux-2.6/fs/xfs/xfs_fsops.c 2008-09-25 16:16:46.916001110 -0500
@@ -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 = 0;

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
Index: linux-2.6/fs/xfs/xfs_fsops.h
================================================== =================
--- linux-2.6.orig/fs/xfs/xfs_fsops.h 2008-06-05 13:44:24.000000000 -0500
+++ linux-2.6/fs/xfs/xfs_fsops.h 2008-09-25 16:16:58.303000603 -0500
@@ -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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