Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/fs/xfs/scrub/repair.h b/fs/xfs/scrub/repair.h
new file mode 100644
index 000000000..9de321eee
--- /dev/null
+++ b/fs/xfs/scrub/repair.h
@@ -0,0 +1,93 @@
+// 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__
+
+static inline int xrep_notsupported(struct xfs_scrub *sc)
+{
+	return -EOPNOTSUPP;
+}
+
+#ifdef CONFIG_XFS_ONLINE_REPAIR
+
+/* Repair helpers */
+
+int xrep_attempt(struct xfs_inode *ip, struct xfs_scrub *sc, bool *fixed);
+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, 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 xfs_bitmap;
+
+int xrep_fix_freelist(struct xfs_scrub *sc, bool can_shrink);
+int xrep_invalidate_blocks(struct xfs_scrub *sc, struct xfs_bitmap *btlist);
+int xrep_reap_extents(struct xfs_scrub *sc, struct xfs_bitmap *exlist,
+		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: magic number of the btree */
+	uint32_t			magic;
+
+	/* 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, uint dqtype);
+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_inode	*ip,
+	struct xfs_scrub	*sc,
+	bool			*fixed)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline void xrep_failure(struct xfs_mount *mp) {}
+
+static inline xfs_extlen_t
+xrep_calc_ag_resblks(
+	struct xfs_scrub	*sc)
+{
+	ASSERT(!(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR));
+	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__ */