// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2017-2023 Oracle. All Rights Reserved. * Author: Darrick J. Wong <[email protected]> */ #ifndef __XFS_SCRUB_COMMON_H__ #define __XFS_SCRUB_COMMON_H__ int xchk_trans_alloc(struct xfs_scrub *sc, uint resblks); int xchk_trans_alloc_empty(struct xfs_scrub *sc); void xchk_trans_cancel(struct xfs_scrub *sc); bool xchk_process_error(struct xfs_scrub *sc, xfs_agnumber_t agno, xfs_agblock_t bno, int *error); bool xchk_fblock_process_error(struct xfs_scrub *sc, int whichfork, xfs_fileoff_t offset, int *error); bool xchk_xref_process_error(struct xfs_scrub *sc, xfs_agnumber_t agno, xfs_agblock_t bno, int *error); bool xchk_fblock_xref_process_error(struct xfs_scrub *sc, int whichfork, xfs_fileoff_t offset, int *error); void xchk_block_set_preen(struct xfs_scrub *sc, struct xfs_buf *bp); void xchk_ino_set_preen(struct xfs_scrub *sc, xfs_ino_t ino); void xchk_set_corrupt(struct xfs_scrub *sc); void xchk_block_set_corrupt(struct xfs_scrub *sc, struct xfs_buf *bp); void xchk_ino_set_corrupt(struct xfs_scrub *sc, xfs_ino_t ino); void xchk_fblock_set_corrupt(struct xfs_scrub *sc, int whichfork, xfs_fileoff_t offset); #ifdef CONFIG_XFS_QUOTA void xchk_qcheck_set_corrupt(struct xfs_scrub *sc, unsigned int dqtype, xfs_dqid_t id); #endif void xchk_block_xref_set_corrupt(struct xfs_scrub *sc, struct xfs_buf *bp); void xchk_ino_xref_set_corrupt(struct xfs_scrub *sc, xfs_ino_t ino); void xchk_fblock_xref_set_corrupt(struct xfs_scrub *sc, int whichfork, xfs_fileoff_t offset); void xchk_ino_set_warning(struct xfs_scrub *sc, xfs_ino_t ino); void xchk_fblock_set_warning(struct xfs_scrub *sc, int whichfork, xfs_fileoff_t offset); void xchk_set_incomplete(struct xfs_scrub *sc); int xchk_checkpoint_log(struct xfs_mount *mp); /* Are we set up for a cross-referencing check? */ bool xchk_should_check_xref(struct xfs_scrub *sc, int *error, struct xfs_btree_cur **curpp); /* Setup functions */ int xchk_setup_agheader(struct xfs_scrub *sc); int xchk_setup_fs(struct xfs_scrub *sc); int xchk_setup_ag_allocbt(struct xfs_scrub *sc); int xchk_setup_ag_iallocbt(struct xfs_scrub *sc); int xchk_setup_ag_rmapbt(struct xfs_scrub *sc); int xchk_setup_ag_refcountbt(struct xfs_scrub *sc); int xchk_setup_inode(struct xfs_scrub *sc); int xchk_setup_inode_bmap(struct xfs_scrub *sc); int xchk_setup_inode_bmap_data(struct xfs_scrub *sc); int xchk_setup_directory(struct xfs_scrub *sc); int xchk_setup_xattr(struct xfs_scrub *sc); int xchk_setup_symlink(struct xfs_scrub *sc); int xchk_setup_parent(struct xfs_scrub *sc); int xchk_setup_dirtree(struct xfs_scrub *sc); #ifdef CONFIG_XFS_RT int xchk_setup_rtbitmap(struct xfs_scrub *sc); int xchk_setup_rtsummary(struct xfs_scrub *sc); #else static inline int xchk_setup_rtbitmap(struct xfs_scrub *sc) { return -ENOENT; } static inline int xchk_setup_rtsummary(struct xfs_scrub *sc) { return -ENOENT; } #endif #ifdef CONFIG_XFS_QUOTA int xchk_ino_dqattach(struct xfs_scrub *sc); int xchk_setup_quota(struct xfs_scrub *sc); int xchk_setup_quotacheck(struct xfs_scrub *sc); #else static inline int xchk_ino_dqattach(struct xfs_scrub *sc) { return 0; } static inline int xchk_setup_quota(struct xfs_scrub *sc) { return -ENOENT; } static inline int xchk_setup_quotacheck(struct xfs_scrub *sc) { return -ENOENT; } #endif int xchk_setup_fscounters(struct xfs_scrub *sc); int xchk_setup_nlinks(struct xfs_scrub *sc); void xchk_ag_free(struct xfs_scrub *sc, struct xchk_ag *sa); int xchk_ag_init(struct xfs_scrub *sc, xfs_agnumber_t agno, struct xchk_ag *sa); int xchk_perag_drain_and_lock(struct xfs_scrub *sc); /* * Grab all AG resources, treating the inability to grab the perag structure as * a fs corruption. This is intended for callers checking an ondisk reference * to a given AG, which means that the AG must still exist. */ static inline int xchk_ag_init_existing( struct xfs_scrub *sc, xfs_agnumber_t agno, struct xchk_ag *sa) { … } int xchk_ag_read_headers(struct xfs_scrub *sc, xfs_agnumber_t agno, struct xchk_ag *sa); void xchk_ag_btcur_free(struct xchk_ag *sa); void xchk_ag_btcur_init(struct xfs_scrub *sc, struct xchk_ag *sa); int xchk_count_rmap_ownedby_ag(struct xfs_scrub *sc, struct xfs_btree_cur *cur, const struct xfs_owner_info *oinfo, xfs_filblks_t *blocks); int xchk_setup_ag_btree(struct xfs_scrub *sc, bool force_log); int xchk_iget_for_scrubbing(struct xfs_scrub *sc); int xchk_setup_inode_contents(struct xfs_scrub *sc, unsigned int resblks); int xchk_install_live_inode(struct xfs_scrub *sc, struct xfs_inode *ip); void xchk_ilock(struct xfs_scrub *sc, unsigned int ilock_flags); bool xchk_ilock_nowait(struct xfs_scrub *sc, unsigned int ilock_flags); void xchk_iunlock(struct xfs_scrub *sc, unsigned int ilock_flags); void xchk_buffer_recheck(struct xfs_scrub *sc, struct xfs_buf *bp); /* * Grab the inode at @inum. The caller must have created a scrub transaction * so that we can confirm the inumber by walking the inobt and not deadlock on * a loop in the inobt. */ int xchk_iget(struct xfs_scrub *sc, xfs_ino_t inum, struct xfs_inode **ipp); int xchk_iget_agi(struct xfs_scrub *sc, xfs_ino_t inum, struct xfs_buf **agi_bpp, struct xfs_inode **ipp); void xchk_irele(struct xfs_scrub *sc, struct xfs_inode *ip); int xchk_install_handle_inode(struct xfs_scrub *sc, struct xfs_inode *ip); /* * Safe version of (untrusted) xchk_iget that uses an empty transaction to * avoid deadlocking on loops in the inobt. This should only be used in a * scrub or repair setup routine, and only prior to grabbing a transaction. */ static inline int xchk_iget_safe(struct xfs_scrub *sc, xfs_ino_t inum, struct xfs_inode **ipp) { … } /* * Don't bother cross-referencing if we already found corruption or cross * referencing discrepancies. */ static inline bool xchk_skip_xref(struct xfs_scrub_metadata *sm) { … } bool xchk_dir_looks_zapped(struct xfs_inode *dp); bool xchk_pptr_looks_zapped(struct xfs_inode *ip); #ifdef CONFIG_XFS_ONLINE_REPAIR /* Decide if a repair is required. */ static inline bool xchk_needs_repair(const struct xfs_scrub_metadata *sm) { … } /* * "Should we prepare for a repair?" * * Return true if the caller permits us to repair metadata and we're not * setting up for a post-repair evaluation. */ static inline bool xchk_could_repair(const struct xfs_scrub *sc) { … } #else #define xchk_needs_repair … #define xchk_could_repair … #endif /* CONFIG_XFS_ONLINE_REPAIR */ int xchk_metadata_inode_forks(struct xfs_scrub *sc); /* * Helper macros to allocate and format xfile description strings. * Callers must kfree the pointer returned. */ #define xchk_xfile_descr(sc, fmt, ...) … #define xchk_xfile_ag_descr(sc, fmt, ...) … #define xchk_xfile_ino_descr(sc, fmt, ...) … /* * Setting up a hook to wait for intents to drain is costly -- we have to take * the CPU hotplug lock and force an i-cache flush on all CPUs once to set it * up, and again to tear it down. These costs add up quickly, so we only want * to enable the drain waiter if the drain actually detected a conflict with * running intent chains. */ static inline bool xchk_need_intent_drain(struct xfs_scrub *sc) { … } void xchk_fsgates_enable(struct xfs_scrub *sc, unsigned int scrub_fshooks); int xchk_inode_is_allocated(struct xfs_scrub *sc, xfs_agino_t agino, bool *inuse); #endif /* __XFS_SCRUB_COMMON_H__ */
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