summaryrefslogtreecommitdiffstats
path: root/fs/xfs/scrub/repair.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/scrub/repair.h')
-rw-r--r--fs/xfs/scrub/repair.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/fs/xfs/scrub/repair.h b/fs/xfs/scrub/repair.h
new file mode 100644
index 000000000..840f74ec4
--- /dev/null
+++ b/fs/xfs/scrub/repair.h
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ */
+#ifndef __XFS_SCRUB_REPAIR_H__
+#define __XFS_SCRUB_REPAIR_H__
+
+#include "xfs_quota_defs.h"
+
+static inline int xrep_notsupported(struct xfs_scrub *sc)
+{
+ return -EOPNOTSUPP;
+}
+
+#ifdef CONFIG_XFS_ONLINE_REPAIR
+
+/* Repair helpers */
+
+int xrep_attempt(struct xfs_scrub *sc);
+void xrep_failure(struct xfs_mount *mp);
+int xrep_roll_ag_trans(struct xfs_scrub *sc);
+bool xrep_ag_has_space(struct xfs_perag *pag, xfs_extlen_t nr_blocks,
+ enum xfs_ag_resv_type type);
+xfs_extlen_t xrep_calc_ag_resblks(struct xfs_scrub *sc);
+int xrep_alloc_ag_block(struct xfs_scrub *sc,
+ const struct xfs_owner_info *oinfo, xfs_fsblock_t *fsbno,
+ enum xfs_ag_resv_type resv);
+int xrep_init_btblock(struct xfs_scrub *sc, xfs_fsblock_t fsb,
+ struct xfs_buf **bpp, xfs_btnum_t btnum,
+ const struct xfs_buf_ops *ops);
+
+struct xbitmap;
+
+int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
+int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xbitmap *btlist);
+int xrep_reap_extents(struct xfs_scrub *sc, struct xbitmap *exlist,
+ const struct xfs_owner_info *oinfo, enum xfs_ag_resv_type type);
+
+struct xrep_find_ag_btree {
+ /* in: rmap owner of the btree we're looking for */
+ uint64_t rmap_owner;
+
+ /* in: buffer ops */
+ const struct xfs_buf_ops *buf_ops;
+
+ /* in: maximum btree height */
+ unsigned int maxlevels;
+
+ /* out: the highest btree block found and the tree height */
+ xfs_agblock_t root;
+ unsigned int height;
+};
+
+int xrep_find_ag_btree_roots(struct xfs_scrub *sc, struct xfs_buf *agf_bp,
+ struct xrep_find_ag_btree *btree_info, struct xfs_buf *agfl_bp);
+void xrep_force_quotacheck(struct xfs_scrub *sc, xfs_dqtype_t type);
+int xrep_ino_dqattach(struct xfs_scrub *sc);
+
+/* Metadata repairers */
+
+int xrep_probe(struct xfs_scrub *sc);
+int xrep_superblock(struct xfs_scrub *sc);
+int xrep_agf(struct xfs_scrub *sc);
+int xrep_agfl(struct xfs_scrub *sc);
+int xrep_agi(struct xfs_scrub *sc);
+
+#else
+
+static inline int
+xrep_attempt(
+ struct xfs_scrub *sc)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline void xrep_failure(struct xfs_mount *mp) {}
+
+static inline xfs_extlen_t
+xrep_calc_ag_resblks(
+ struct xfs_scrub *sc)
+{
+ return 0;
+}
+
+#define xrep_probe xrep_notsupported
+#define xrep_superblock xrep_notsupported
+#define xrep_agf xrep_notsupported
+#define xrep_agfl xrep_notsupported
+#define xrep_agi xrep_notsupported
+
+#endif /* CONFIG_XFS_ONLINE_REPAIR */
+
+#endif /* __XFS_SCRUB_REPAIR_H__ */