xfs: toggle readonly state around xfs_log_mount_finish
When we do log recovery on a readonly mount, unlinked inode
processing does not happen due to the readonly checks in
xfs_inactive(), which are trying to prevent any I/O on a
readonly mount.
This is misguided - we do I/O on readonly mounts all the time,
for consistency; for example, log recovery. So do the same
RDONLY flag twiddling around xfs_log_mount_finish() as we
do around xfs_log_mount(), for the same reason.
This all cries out for a big rework but for now this is a
simple fix to an obvious problem.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 972eda8..f467f12 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -743,10 +743,14 @@
struct xfs_mount *mp)
{
int error = 0;
+ bool readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
return 0;
+ } else if (readonly) {
+ /* Allow unlinked processing to proceed */
+ mp->m_flags &= ~XFS_MOUNT_RDONLY;
}
/*
@@ -764,6 +768,9 @@
xfs_log_work_queue(mp);
mp->m_super->s_flags &= ~MS_ACTIVE;
+ if (readonly)
+ mp->m_flags |= XFS_MOUNT_RDONLY;
+
return error;
}