diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.h | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index f93374278aa1..355b304696e6 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -135,7 +135,7 @@ struct xfs_btree_ops { /* offset of btree stats array */ unsigned int statoff; - /* sick mask for health reporting (only for XFS_BTREE_TYPE_AG) */ + /* sick mask for health reporting (not for bmap btrees) */ unsigned int sick_mask; /* cursor operations */ @@ -154,12 +154,6 @@ struct xfs_btree_ops { int *stat); int (*free_block)(struct xfs_btree_cur *cur, struct xfs_buf *bp); - /* update last record information */ - void (*update_lastrec)(struct xfs_btree_cur *cur, - const struct xfs_btree_block *block, - const union xfs_btree_rec *rec, - int ptr, int reason); - /* records in block/level */ int (*get_minrecs)(struct xfs_btree_cur *cur, int level); int (*get_maxrecs)(struct xfs_btree_cur *cur, int level); @@ -219,19 +213,27 @@ struct xfs_btree_ops { const union xfs_btree_key *key1, const union xfs_btree_key *key2, const union xfs_btree_key *mask); + + /* + * Reallocate the space for if_broot to fit the number of records. + * Move the records and pointers in if_broot to fit the new size. When + * shrinking this will eliminate holes between the records and pointers + * created by the caller. When growing this will create holes to be + * filled in by the caller. + * + * The caller must not request to add more records than would fit in + * the on-disk inode root. If the if_broot is currently NULL, then if + * we are adding records, one will be allocated. The caller must also + * not request that the number of records go below zero, although it + * can go to zero. + */ + struct xfs_btree_block *(*broot_realloc)(struct xfs_btree_cur *cur, + unsigned int new_numrecs); }; /* btree geometry flags */ -#define XFS_BTGEO_LASTREC_UPDATE (1U << 0) /* track last rec externally */ -#define XFS_BTGEO_OVERLAPPING (1U << 1) /* overlapping intervals */ - -/* - * Reasons for the update_lastrec method to be called. - */ -#define LASTREC_UPDATE 0 -#define LASTREC_INSREC 1 -#define LASTREC_DELREC 2 - +#define XFS_BTGEO_OVERLAPPING (1U << 0) /* overlapping intervals */ +#define XFS_BTGEO_IROOT_RECORDS (1U << 1) /* iroot can store records */ union xfs_btree_irec { struct xfs_alloc_rec_incore a; @@ -268,6 +270,7 @@ struct xfs_btree_cur union xfs_btree_irec bc_rec; /* current insert/search record value */ uint8_t bc_nlevels; /* number of levels in the tree */ uint8_t bc_maxlevels; /* maximum levels for this btree type */ + struct xfs_group *bc_group; /* per-type information */ union { @@ -278,13 +281,11 @@ struct xfs_btree_cur struct xbtree_ifakeroot *ifake; /* for staging cursor */ } bc_ino; struct { - struct xfs_perag *pag; struct xfs_buf *agbp; struct xbtree_afakeroot *afake; /* for staging cursor */ } bc_ag; struct { struct xfbtree *xfbtree; - struct xfs_perag *pag; } bc_mem; }; @@ -296,7 +297,7 @@ struct xfs_btree_cur struct { unsigned int nr_ops; /* # record updates */ unsigned int shape_changes; /* # of extent splits */ - } bc_refc; /* refcountbt */ + } bc_refc; /* refcountbt/rtrefcountbt */ }; /* Must be at the end of the struct! */ @@ -499,7 +500,7 @@ typedef int (*xfs_btree_visit_blocks_fn)(struct xfs_btree_cur *cur, int level, int xfs_btree_visit_blocks(struct xfs_btree_cur *cur, xfs_btree_visit_blocks_fn fn, unsigned int flags, void *data); -int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_extlen_t *blocks); +int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_filblks_t *blocks); union xfs_btree_rec *xfs_btree_rec_addr(struct xfs_btree_cur *cur, int n, struct xfs_btree_block *block); @@ -702,4 +703,10 @@ xfs_btree_at_iroot( level == cur->bc_nlevels - 1; } +int xfs_btree_alloc_metafile_block(struct xfs_btree_cur *cur, + const union xfs_btree_ptr *start, union xfs_btree_ptr *newp, + int *stat); +int xfs_btree_free_metafile_block(struct xfs_btree_cur *cur, + struct xfs_buf *bp); + #endif /* __XFS_BTREE_H__ */ |