diff options
Diffstat (limited to 'fs/xfs/scrub/common.c')
| -rw-r--r-- | fs/xfs/scrub/common.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c index 68fea09cd673..f5df8f2859d7 100644 --- a/fs/xfs/scrub/common.c +++ b/fs/xfs/scrub/common.c @@ -325,6 +325,59 @@ xfs_scrub_set_incomplete( } /* + * rmap scrubbing -- compute the number of blocks with a given owner, + * at least according to the reverse mapping data. + */ + +struct xfs_scrub_rmap_ownedby_info { + struct xfs_owner_info *oinfo; + xfs_filblks_t *blocks; +}; + +STATIC int +xfs_scrub_count_rmap_ownedby_irec( + struct xfs_btree_cur *cur, + struct xfs_rmap_irec *rec, + void *priv) +{ + struct xfs_scrub_rmap_ownedby_info *sroi = priv; + bool irec_attr; + bool oinfo_attr; + + irec_attr = rec->rm_flags & XFS_RMAP_ATTR_FORK; + oinfo_attr = sroi->oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK; + + if (rec->rm_owner != sroi->oinfo->oi_owner) + return 0; + + if (XFS_RMAP_NON_INODE_OWNER(rec->rm_owner) || irec_attr == oinfo_attr) + (*sroi->blocks) += rec->rm_blockcount; + + return 0; +} + +/* + * Calculate the number of blocks the rmap thinks are owned by something. + * The caller should pass us an rmapbt cursor. + */ +int +xfs_scrub_count_rmap_ownedby_ag( + struct xfs_scrub_context *sc, + struct xfs_btree_cur *cur, + struct xfs_owner_info *oinfo, + xfs_filblks_t *blocks) +{ + struct xfs_scrub_rmap_ownedby_info sroi; + + sroi.oinfo = oinfo; + *blocks = 0; + sroi.blocks = blocks; + + return xfs_rmap_query_all(cur, xfs_scrub_count_rmap_ownedby_irec, + &sroi); +} + +/* * AG scrubbing * * These helpers facilitate locking an allocation group's header |