diff options
Diffstat (limited to 'fs/xfs/scrub/common.h')
| -rw-r--r-- | fs/xfs/scrub/common.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h index cabdc0e168..da09580b45 100644 --- a/fs/xfs/scrub/common.h +++ b/fs/xfs/scrub/common.h @@ -103,9 +103,15 @@ xchk_setup_rtsummary(struct xfs_scrub *sc) } #endif #ifdef CONFIG_XFS_QUOTA +int xchk_ino_dqattach(struct xfs_scrub *sc); int xchk_setup_quota(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; @@ -151,6 +157,11 @@ 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); @@ -158,6 +169,26 @@ 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) +{ + int error; + + ASSERT(sc->tp == NULL); + + error = xchk_trans_alloc(sc, 0); + if (error) + return error; + error = xchk_iget(sc, inum, ipp); + xchk_trans_cancel(sc); + return error; +} + +/* * Don't bother cross-referencing if we already found corruption or cross * referencing discrepancies. */ @@ -167,6 +198,8 @@ static inline bool xchk_skip_xref(struct xfs_scrub_metadata *sm) XFS_SCRUB_OFLAG_XCORRUPT); } +bool xchk_dir_looks_zapped(struct xfs_inode *dp); + #ifdef CONFIG_XFS_ONLINE_REPAIR /* Decide if a repair is required. */ static inline bool xchk_needs_repair(const struct xfs_scrub_metadata *sm) @@ -175,8 +208,21 @@ static inline bool xchk_needs_repair(const struct xfs_scrub_metadata *sm) XFS_SCRUB_OFLAG_XCORRUPT | XFS_SCRUB_OFLAG_PREEN); } + +/* + * "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) +{ + return (sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR) && + !(sc->flags & XREP_ALREADY_FIXED); +} #else # define xchk_needs_repair(sc) (false) +# define xchk_could_repair(sc) (false) #endif /* CONFIG_XFS_ONLINE_REPAIR */ int xchk_metadata_inode_forks(struct xfs_scrub *sc); @@ -188,6 +234,16 @@ int xchk_metadata_inode_forks(struct xfs_scrub *sc); #define xchk_xfile_descr(sc, fmt, ...) \ kasprintf(XCHK_GFP_FLAGS, "XFS (%s): " fmt, \ (sc)->mp->m_super->s_id, ##__VA_ARGS__) +#define xchk_xfile_ag_descr(sc, fmt, ...) \ + kasprintf(XCHK_GFP_FLAGS, "XFS (%s): AG 0x%x " fmt, \ + (sc)->mp->m_super->s_id, \ + (sc)->sa.pag ? (sc)->sa.pag->pag_agno : (sc)->sm->sm_agno, \ + ##__VA_ARGS__) +#define xchk_xfile_ino_descr(sc, fmt, ...) \ + kasprintf(XCHK_GFP_FLAGS, "XFS (%s): inode 0x%llx " fmt, \ + (sc)->mp->m_super->s_id, \ + (sc)->ip ? (sc)->ip->i_ino : (sc)->sm->sm_ino, \ + ##__VA_ARGS__) /* * Setting up a hook to wait for intents to drain is costly -- we have to take |