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-rw-r--r--fs/xfs/scrub/scrub.h115
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diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h
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+/*
+ * Copyright (C) 2017 Oracle. All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_SCRUB_H__
+#define __XFS_SCRUB_SCRUB_H__
+
+struct xfs_scrub_context;
+
+struct xfs_scrub_meta_ops {
+ /* Acquire whatever resources are needed for the operation. */
+ int (*setup)(struct xfs_scrub_context *,
+ struct xfs_inode *);
+
+ /* Examine metadata for errors. */
+ int (*scrub)(struct xfs_scrub_context *);
+
+ /* Decide if we even have this piece of metadata. */
+ bool (*has)(struct xfs_sb *);
+};
+
+/* Buffer pointers and btree cursors for an entire AG. */
+struct xfs_scrub_ag {
+ xfs_agnumber_t agno;
+
+ /* AG btree roots */
+ struct xfs_buf *agf_bp;
+ struct xfs_buf *agfl_bp;
+ struct xfs_buf *agi_bp;
+
+ /* AG btrees */
+ struct xfs_btree_cur *bno_cur;
+ struct xfs_btree_cur *cnt_cur;
+ struct xfs_btree_cur *ino_cur;
+ struct xfs_btree_cur *fino_cur;
+ struct xfs_btree_cur *rmap_cur;
+ struct xfs_btree_cur *refc_cur;
+};
+
+struct xfs_scrub_context {
+ /* General scrub state. */
+ struct xfs_mount *mp;
+ struct xfs_scrub_metadata *sm;
+ const struct xfs_scrub_meta_ops *ops;
+ struct xfs_trans *tp;
+ struct xfs_inode *ip;
+ void *buf;
+ uint ilock_flags;
+ bool try_harder;
+
+ /* State tracking for single-AG operations. */
+ struct xfs_scrub_ag sa;
+};
+
+/* Metadata scrubbers */
+int xfs_scrub_tester(struct xfs_scrub_context *sc);
+int xfs_scrub_superblock(struct xfs_scrub_context *sc);
+int xfs_scrub_agf(struct xfs_scrub_context *sc);
+int xfs_scrub_agfl(struct xfs_scrub_context *sc);
+int xfs_scrub_agi(struct xfs_scrub_context *sc);
+int xfs_scrub_bnobt(struct xfs_scrub_context *sc);
+int xfs_scrub_cntbt(struct xfs_scrub_context *sc);
+int xfs_scrub_inobt(struct xfs_scrub_context *sc);
+int xfs_scrub_finobt(struct xfs_scrub_context *sc);
+int xfs_scrub_rmapbt(struct xfs_scrub_context *sc);
+int xfs_scrub_refcountbt(struct xfs_scrub_context *sc);
+int xfs_scrub_inode(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_data(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_attr(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_cow(struct xfs_scrub_context *sc);
+int xfs_scrub_directory(struct xfs_scrub_context *sc);
+int xfs_scrub_xattr(struct xfs_scrub_context *sc);
+int xfs_scrub_symlink(struct xfs_scrub_context *sc);
+int xfs_scrub_parent(struct xfs_scrub_context *sc);
+#ifdef CONFIG_XFS_RT
+int xfs_scrub_rtbitmap(struct xfs_scrub_context *sc);
+int xfs_scrub_rtsummary(struct xfs_scrub_context *sc);
+#else
+static inline int
+xfs_scrub_rtbitmap(struct xfs_scrub_context *sc)
+{
+ return -ENOENT;
+}
+static inline int
+xfs_scrub_rtsummary(struct xfs_scrub_context *sc)
+{
+ return -ENOENT;
+}
+#endif
+#ifdef CONFIG_XFS_QUOTA
+int xfs_scrub_quota(struct xfs_scrub_context *sc);
+#else
+static inline int
+xfs_scrub_quota(struct xfs_scrub_context *sc)
+{
+ return -ENOENT;
+}
+#endif
+
+#endif /* __XFS_SCRUB_SCRUB_H__ */