Do this before adding more core checks.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c
index dc1f33a..16932f9 100644
--- a/fs/xfs/scrub/scrub.c
+++ b/fs/xfs/scrub/scrub.c
@@ -285,47 +285,34 @@
"EXPERIMENTAL online scrub feature in use. Use at your own risk!");
}
-/* Dispatch metadata scrubbing. */
-int
-xfs_scrub_metadata(
- struct xfs_inode *ip,
+static int
+xfs_scrub_validate(
+ struct xfs_mount *mp,
struct xfs_scrub_metadata *sm)
{
- struct xfs_scrub_context sc;
- struct xfs_mount *mp = ip->i_mount;
+ int error;
const struct xfs_scrub_meta_ops *ops;
- bool try_harder = false;
- int error = 0;
-
- BUILD_BUG_ON(sizeof(meta_scrub_ops) !=
- (sizeof(struct xfs_scrub_meta_ops) * XFS_SCRUB_TYPE_NR));
-
- trace_xfs_scrub_start(ip, sm, error);
-
- /* Forbidden if we are shut down or mounted norecovery. */
- error = -ESHUTDOWN;
- if (XFS_FORCED_SHUTDOWN(mp))
- goto out;
- error = -ENOTRECOVERABLE;
- if (mp->m_flags & XFS_MOUNT_NORECOVERY)
- goto out;
- /* Check our inputs. */
error = -EINVAL;
+ /* Check our inputs. */
sm->sm_flags &= ~XFS_SCRUB_FLAGS_OUT;
if (sm->sm_flags & ~XFS_SCRUB_FLAGS_IN)
goto out;
if (memchr_inv(sm->sm_reserved, 0, sizeof(sm->sm_reserved)))
goto out;
- /* Do we know about this type of metadata? */
error = -ENOENT;
+ /* Do we know about this type of metadata? */
if (sm->sm_type >= XFS_SCRUB_TYPE_NR)
goto out;
ops = &meta_scrub_ops[sm->sm_type];
if (ops->setup == NULL || ops->scrub == NULL)
goto out;
+ /* Does this fs even support this type of metadata? */
+ if (ops->has && !ops->has(&mp->m_sb))
+ goto out;
+ error = -EOPNOTSUPP;
/*
* We won't scrub any filesystem that doesn't have the ability
* to record unwritten extents. The option was made default in
@@ -335,20 +322,46 @@
* We also don't support v1-v3 filesystems, which aren't
* mountable.
*/
- error = -EOPNOTSUPP;
if (!xfs_sb_version_hasextflgbit(&mp->m_sb))
goto out;
- /* Does this fs even support this type of metadata? */
- error = -ENOENT;
- if (ops->has && !ops->has(&mp->m_sb))
- goto out;
-
/* We don't know how to repair anything yet. */
- error = -EOPNOTSUPP;
if (sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR)
goto out;
+ error = 0;
+out:
+ return error;
+}
+
+/* Dispatch metadata scrubbing. */
+int
+xfs_scrub_metadata(
+ struct xfs_inode *ip,
+ struct xfs_scrub_metadata *sm)
+{
+ struct xfs_scrub_context sc;
+ struct xfs_mount *mp = ip->i_mount;
+ bool try_harder = false;
+ int error = 0;
+
+ BUILD_BUG_ON(sizeof(meta_scrub_ops) !=
+ (sizeof(struct xfs_scrub_meta_ops) * XFS_SCRUB_TYPE_NR));
+
+ trace_xfs_scrub_start(ip, sm, error);
+
+ /* Forbidden if we are shut down or mounted norecovery. */
+ error = -ESHUTDOWN;
+ if (XFS_FORCED_SHUTDOWN(mp))
+ goto out;
+ error = -ENOTRECOVERABLE;
+ if (mp->m_flags & XFS_MOUNT_NORECOVERY)
+ goto out;
+
+ error = xfs_scrub_validate(mp, sm);
+ if (error)
+ goto out;
+
xfs_scrub_experimental_warning(mp);
retry_op:
@@ -356,7 +369,7 @@
memset(&sc, 0, sizeof(sc));
sc.mp = ip->i_mount;
sc.sm = sm;
- sc.ops = ops;
+ sc.ops = &meta_scrub_ops[sm->sm_type];
sc.try_harder = try_harder;
sc.sa.agno = NULLAGNUMBER;
error = sc.ops->setup(&sc, ip);
--
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