2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #include "libxfs_priv.h"
20 #include "xfs_shared.h"
21 #include "xfs_format.h"
22 #include "xfs_log_format.h"
23 #include "xfs_trans_resv.h"
25 #include "xfs_mount.h"
26 #include "xfs_defer.h"
27 #include "xfs_inode.h"
28 #include "xfs_trans.h"
29 #include "xfs_alloc.h"
30 #include "xfs_btree.h"
31 #include "xfs_bmap_btree.h"
33 #include "xfs_trace.h"
34 #include "xfs_cksum.h"
38 * Convert on-disk form of btree root to in-memory form.
43 xfs_bmdr_block_t
*dblock
,
45 struct xfs_btree_block
*rblock
,
48 struct xfs_mount
*mp
= ip
->i_mount
;
55 xfs_btree_init_block_int(mp
, rblock
, XFS_BUF_DADDR_NULL
,
56 XFS_BTNUM_BMAP
, 0, 0, ip
->i_ino
,
58 rblock
->bb_level
= dblock
->bb_level
;
59 ASSERT(be16_to_cpu(rblock
->bb_level
) > 0);
60 rblock
->bb_numrecs
= dblock
->bb_numrecs
;
61 dmxr
= xfs_bmdr_maxrecs(dblocklen
, 0);
62 fkp
= XFS_BMDR_KEY_ADDR(dblock
, 1);
63 tkp
= XFS_BMBT_KEY_ADDR(mp
, rblock
, 1);
64 fpp
= XFS_BMDR_PTR_ADDR(dblock
, 1, dmxr
);
65 tpp
= XFS_BMAP_BROOT_PTR_ADDR(mp
, rblock
, 1, rblocklen
);
66 dmxr
= be16_to_cpu(dblock
->bb_numrecs
);
67 memcpy(tkp
, fkp
, sizeof(*fkp
) * dmxr
);
68 memcpy(tpp
, fpp
, sizeof(*fpp
) * dmxr
);
72 xfs_bmbt_disk_get_all(
73 struct xfs_bmbt_rec
*rec
,
74 struct xfs_bmbt_irec
*irec
)
76 uint64_t l0
= get_unaligned_be64(&rec
->l0
);
77 uint64_t l1
= get_unaligned_be64(&rec
->l1
);
79 irec
->br_startoff
= (l0
& xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN
)) >> 9;
80 irec
->br_startblock
= ((l0
& xfs_mask64lo(9)) << 43) | (l1
>> 21);
81 irec
->br_blockcount
= l1
& xfs_mask64lo(21);
82 if (l0
>> (64 - BMBT_EXNTFLAG_BITLEN
))
83 irec
->br_state
= XFS_EXT_UNWRITTEN
;
85 irec
->br_state
= XFS_EXT_NORM
;
89 * Extract the blockcount field from an on disk bmap extent record.
92 xfs_bmbt_disk_get_blockcount(
95 return (xfs_filblks_t
)(be64_to_cpu(r
->l1
) & xfs_mask64lo(21));
99 * Extract the startoff field from a disk format bmap extent record.
102 xfs_bmbt_disk_get_startoff(
105 return ((xfs_fileoff_t
)be64_to_cpu(r
->l0
) &
106 xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN
)) >> 9;
110 * Set all the fields in a bmap extent record from the uncompressed form.
113 xfs_bmbt_disk_set_all(
114 struct xfs_bmbt_rec
*r
,
115 struct xfs_bmbt_irec
*s
)
117 int extent_flag
= (s
->br_state
!= XFS_EXT_NORM
);
119 ASSERT(s
->br_state
== XFS_EXT_NORM
|| s
->br_state
== XFS_EXT_UNWRITTEN
);
120 ASSERT(!(s
->br_startoff
& xfs_mask64hi(64-BMBT_STARTOFF_BITLEN
)));
121 ASSERT(!(s
->br_blockcount
& xfs_mask64hi(64-BMBT_BLOCKCOUNT_BITLEN
)));
122 ASSERT(!(s
->br_startblock
& xfs_mask64hi(64-BMBT_STARTBLOCK_BITLEN
)));
125 ((xfs_bmbt_rec_base_t
)extent_flag
<< 63) |
126 ((xfs_bmbt_rec_base_t
)s
->br_startoff
<< 9) |
127 ((xfs_bmbt_rec_base_t
)s
->br_startblock
>> 43), &r
->l0
);
129 ((xfs_bmbt_rec_base_t
)s
->br_startblock
<< 21) |
130 ((xfs_bmbt_rec_base_t
)s
->br_blockcount
&
131 (xfs_bmbt_rec_base_t
)xfs_mask64lo(21)), &r
->l1
);
135 * Convert in-memory form of btree root to on-disk form.
139 struct xfs_mount
*mp
,
140 struct xfs_btree_block
*rblock
,
142 xfs_bmdr_block_t
*dblock
,
151 if (xfs_sb_version_hascrc(&mp
->m_sb
)) {
152 ASSERT(rblock
->bb_magic
== cpu_to_be32(XFS_BMAP_CRC_MAGIC
));
153 ASSERT(uuid_equal(&rblock
->bb_u
.l
.bb_uuid
,
154 &mp
->m_sb
.sb_meta_uuid
));
155 ASSERT(rblock
->bb_u
.l
.bb_blkno
==
156 cpu_to_be64(XFS_BUF_DADDR_NULL
));
158 ASSERT(rblock
->bb_magic
== cpu_to_be32(XFS_BMAP_MAGIC
));
159 ASSERT(rblock
->bb_u
.l
.bb_leftsib
== cpu_to_be64(NULLFSBLOCK
));
160 ASSERT(rblock
->bb_u
.l
.bb_rightsib
== cpu_to_be64(NULLFSBLOCK
));
161 ASSERT(rblock
->bb_level
!= 0);
162 dblock
->bb_level
= rblock
->bb_level
;
163 dblock
->bb_numrecs
= rblock
->bb_numrecs
;
164 dmxr
= xfs_bmdr_maxrecs(dblocklen
, 0);
165 fkp
= XFS_BMBT_KEY_ADDR(mp
, rblock
, 1);
166 tkp
= XFS_BMDR_KEY_ADDR(dblock
, 1);
167 fpp
= XFS_BMAP_BROOT_PTR_ADDR(mp
, rblock
, 1, rblocklen
);
168 tpp
= XFS_BMDR_PTR_ADDR(dblock
, 1, dmxr
);
169 dmxr
= be16_to_cpu(dblock
->bb_numrecs
);
170 memcpy(tkp
, fkp
, sizeof(*fkp
) * dmxr
);
171 memcpy(tpp
, fpp
, sizeof(*fpp
) * dmxr
);
174 STATIC
struct xfs_btree_cur
*
176 struct xfs_btree_cur
*cur
)
178 struct xfs_btree_cur
*new;
180 new = xfs_bmbt_init_cursor(cur
->bc_mp
, cur
->bc_tp
,
181 cur
->bc_private
.b
.ip
, cur
->bc_private
.b
.whichfork
);
184 * Copy the firstblock, dfops, and flags values,
185 * since init cursor doesn't get them.
187 new->bc_private
.b
.firstblock
= cur
->bc_private
.b
.firstblock
;
188 new->bc_private
.b
.dfops
= cur
->bc_private
.b
.dfops
;
189 new->bc_private
.b
.flags
= cur
->bc_private
.b
.flags
;
195 xfs_bmbt_update_cursor(
196 struct xfs_btree_cur
*src
,
197 struct xfs_btree_cur
*dst
)
199 ASSERT((dst
->bc_private
.b
.firstblock
!= NULLFSBLOCK
) ||
200 (dst
->bc_private
.b
.ip
->i_d
.di_flags
& XFS_DIFLAG_REALTIME
));
201 ASSERT(dst
->bc_private
.b
.dfops
== src
->bc_private
.b
.dfops
);
203 dst
->bc_private
.b
.allocated
+= src
->bc_private
.b
.allocated
;
204 dst
->bc_private
.b
.firstblock
= src
->bc_private
.b
.firstblock
;
206 src
->bc_private
.b
.allocated
= 0;
210 xfs_bmbt_alloc_block(
211 struct xfs_btree_cur
*cur
,
212 union xfs_btree_ptr
*start
,
213 union xfs_btree_ptr
*new,
216 xfs_alloc_arg_t args
; /* block allocation args */
217 int error
; /* error return value */
219 memset(&args
, 0, sizeof(args
));
220 args
.tp
= cur
->bc_tp
;
221 args
.mp
= cur
->bc_mp
;
222 args
.fsbno
= cur
->bc_private
.b
.firstblock
;
223 args
.firstblock
= args
.fsbno
;
224 xfs_rmap_ino_bmbt_owner(&args
.oinfo
, cur
->bc_private
.b
.ip
->i_ino
,
225 cur
->bc_private
.b
.whichfork
);
227 if (args
.fsbno
== NULLFSBLOCK
) {
228 args
.fsbno
= be64_to_cpu(start
->l
);
229 args
.type
= XFS_ALLOCTYPE_START_BNO
;
231 * Make sure there is sufficient room left in the AG to
232 * complete a full tree split for an extent insert. If
233 * we are converting the middle part of an extent then
234 * we may need space for two tree splits.
236 * We are relying on the caller to make the correct block
237 * reservation for this operation to succeed. If the
238 * reservation amount is insufficient then we may fail a
239 * block allocation here and corrupt the filesystem.
241 args
.minleft
= args
.tp
->t_blk_res
;
242 } else if (cur
->bc_private
.b
.dfops
->dop_low
) {
243 args
.type
= XFS_ALLOCTYPE_START_BNO
;
245 args
.type
= XFS_ALLOCTYPE_NEAR_BNO
;
248 args
.minlen
= args
.maxlen
= args
.prod
= 1;
249 args
.wasdel
= cur
->bc_private
.b
.flags
& XFS_BTCUR_BPRV_WASDEL
;
250 if (!args
.wasdel
&& args
.tp
->t_blk_res
== 0) {
254 error
= xfs_alloc_vextent(&args
);
258 if (args
.fsbno
== NULLFSBLOCK
&& args
.minleft
) {
260 * Could not find an AG with enough free space to satisfy
261 * a full btree split. Try again and if
262 * successful activate the lowspace algorithm.
265 args
.type
= XFS_ALLOCTYPE_FIRST_AG
;
266 error
= xfs_alloc_vextent(&args
);
269 cur
->bc_private
.b
.dfops
->dop_low
= true;
271 if (WARN_ON_ONCE(args
.fsbno
== NULLFSBLOCK
)) {
276 ASSERT(args
.len
== 1);
277 cur
->bc_private
.b
.firstblock
= args
.fsbno
;
278 cur
->bc_private
.b
.allocated
++;
279 cur
->bc_private
.b
.ip
->i_d
.di_nblocks
++;
280 xfs_trans_log_inode(args
.tp
, cur
->bc_private
.b
.ip
, XFS_ILOG_CORE
);
281 xfs_trans_mod_dquot_byino(args
.tp
, cur
->bc_private
.b
.ip
,
282 XFS_TRANS_DQ_BCOUNT
, 1L);
284 new->l
= cpu_to_be64(args
.fsbno
);
295 struct xfs_btree_cur
*cur
,
298 struct xfs_mount
*mp
= cur
->bc_mp
;
299 struct xfs_inode
*ip
= cur
->bc_private
.b
.ip
;
300 struct xfs_trans
*tp
= cur
->bc_tp
;
301 xfs_fsblock_t fsbno
= XFS_DADDR_TO_FSB(mp
, XFS_BUF_ADDR(bp
));
302 struct xfs_owner_info oinfo
;
304 xfs_rmap_ino_bmbt_owner(&oinfo
, ip
->i_ino
, cur
->bc_private
.b
.whichfork
);
305 xfs_bmap_add_free(mp
, cur
->bc_private
.b
.dfops
, fsbno
, 1, &oinfo
);
306 ip
->i_d
.di_nblocks
--;
308 xfs_trans_log_inode(tp
, ip
, XFS_ILOG_CORE
);
309 xfs_trans_mod_dquot_byino(tp
, ip
, XFS_TRANS_DQ_BCOUNT
, -1L);
314 xfs_bmbt_get_minrecs(
315 struct xfs_btree_cur
*cur
,
318 if (level
== cur
->bc_nlevels
- 1) {
319 struct xfs_ifork
*ifp
;
321 ifp
= XFS_IFORK_PTR(cur
->bc_private
.b
.ip
,
322 cur
->bc_private
.b
.whichfork
);
324 return xfs_bmbt_maxrecs(cur
->bc_mp
,
325 ifp
->if_broot_bytes
, level
== 0) / 2;
328 return cur
->bc_mp
->m_bmap_dmnr
[level
!= 0];
332 xfs_bmbt_get_maxrecs(
333 struct xfs_btree_cur
*cur
,
336 if (level
== cur
->bc_nlevels
- 1) {
337 struct xfs_ifork
*ifp
;
339 ifp
= XFS_IFORK_PTR(cur
->bc_private
.b
.ip
,
340 cur
->bc_private
.b
.whichfork
);
342 return xfs_bmbt_maxrecs(cur
->bc_mp
,
343 ifp
->if_broot_bytes
, level
== 0);
346 return cur
->bc_mp
->m_bmap_dmxr
[level
!= 0];
351 * Get the maximum records we could store in the on-disk format.
353 * For non-root nodes this is equivalent to xfs_bmbt_get_maxrecs, but
354 * for the root node this checks the available space in the dinode fork
355 * so that we can resize the in-memory buffer to match it. After a
356 * resize to the maximum size this function returns the same value
357 * as xfs_bmbt_get_maxrecs for the root node, too.
360 xfs_bmbt_get_dmaxrecs(
361 struct xfs_btree_cur
*cur
,
364 if (level
!= cur
->bc_nlevels
- 1)
365 return cur
->bc_mp
->m_bmap_dmxr
[level
!= 0];
366 return xfs_bmdr_maxrecs(cur
->bc_private
.b
.forksize
, level
== 0);
370 xfs_bmbt_init_key_from_rec(
371 union xfs_btree_key
*key
,
372 union xfs_btree_rec
*rec
)
374 key
->bmbt
.br_startoff
=
375 cpu_to_be64(xfs_bmbt_disk_get_startoff(&rec
->bmbt
));
379 xfs_bmbt_init_high_key_from_rec(
380 union xfs_btree_key
*key
,
381 union xfs_btree_rec
*rec
)
383 key
->bmbt
.br_startoff
= cpu_to_be64(
384 xfs_bmbt_disk_get_startoff(&rec
->bmbt
) +
385 xfs_bmbt_disk_get_blockcount(&rec
->bmbt
) - 1);
389 xfs_bmbt_init_rec_from_cur(
390 struct xfs_btree_cur
*cur
,
391 union xfs_btree_rec
*rec
)
393 xfs_bmbt_disk_set_all(&rec
->bmbt
, &cur
->bc_rec
.b
);
397 xfs_bmbt_init_ptr_from_cur(
398 struct xfs_btree_cur
*cur
,
399 union xfs_btree_ptr
*ptr
)
406 struct xfs_btree_cur
*cur
,
407 union xfs_btree_key
*key
)
409 return (int64_t)be64_to_cpu(key
->bmbt
.br_startoff
) -
410 cur
->bc_rec
.b
.br_startoff
;
414 xfs_bmbt_diff_two_keys(
415 struct xfs_btree_cur
*cur
,
416 union xfs_btree_key
*k1
,
417 union xfs_btree_key
*k2
)
419 return (int64_t)be64_to_cpu(k1
->bmbt
.br_startoff
) -
420 be64_to_cpu(k2
->bmbt
.br_startoff
);
423 static xfs_failaddr_t
427 struct xfs_mount
*mp
= bp
->b_target
->bt_mount
;
428 struct xfs_btree_block
*block
= XFS_BUF_TO_BLOCK(bp
);
432 switch (block
->bb_magic
) {
433 case cpu_to_be32(XFS_BMAP_CRC_MAGIC
):
435 * XXX: need a better way of verifying the owner here. Right now
436 * just make sure there has been one set.
438 fa
= xfs_btree_lblock_v5hdr_verify(bp
, XFS_RMAP_OWN_UNKNOWN
);
442 case cpu_to_be32(XFS_BMAP_MAGIC
):
445 return __this_address
;
449 * numrecs and level verification.
451 * We don't know what fork we belong to, so just verify that the level
452 * is less than the maximum of the two. Later checks will be more
455 level
= be16_to_cpu(block
->bb_level
);
456 if (level
> max(mp
->m_bm_maxlevels
[0], mp
->m_bm_maxlevels
[1]))
457 return __this_address
;
459 return xfs_btree_lblock_verify(bp
, mp
->m_bmap_dmxr
[level
!= 0]);
463 xfs_bmbt_read_verify(
468 if (!xfs_btree_lblock_verify_crc(bp
))
469 xfs_verifier_error(bp
, -EFSBADCRC
, __this_address
);
471 fa
= xfs_bmbt_verify(bp
);
473 xfs_verifier_error(bp
, -EFSCORRUPTED
, fa
);
477 trace_xfs_btree_corrupt(bp
, _RET_IP_
);
481 xfs_bmbt_write_verify(
486 fa
= xfs_bmbt_verify(bp
);
488 trace_xfs_btree_corrupt(bp
, _RET_IP_
);
489 xfs_verifier_error(bp
, -EFSCORRUPTED
, fa
);
492 xfs_btree_lblock_calc_crc(bp
);
495 const struct xfs_buf_ops xfs_bmbt_buf_ops
= {
497 .verify_read
= xfs_bmbt_read_verify
,
498 .verify_write
= xfs_bmbt_write_verify
,
499 .verify_struct
= xfs_bmbt_verify
,
504 xfs_bmbt_keys_inorder(
505 struct xfs_btree_cur
*cur
,
506 union xfs_btree_key
*k1
,
507 union xfs_btree_key
*k2
)
509 return be64_to_cpu(k1
->bmbt
.br_startoff
) <
510 be64_to_cpu(k2
->bmbt
.br_startoff
);
514 xfs_bmbt_recs_inorder(
515 struct xfs_btree_cur
*cur
,
516 union xfs_btree_rec
*r1
,
517 union xfs_btree_rec
*r2
)
519 return xfs_bmbt_disk_get_startoff(&r1
->bmbt
) +
520 xfs_bmbt_disk_get_blockcount(&r1
->bmbt
) <=
521 xfs_bmbt_disk_get_startoff(&r2
->bmbt
);
524 static const struct xfs_btree_ops xfs_bmbt_ops
= {
525 .rec_len
= sizeof(xfs_bmbt_rec_t
),
526 .key_len
= sizeof(xfs_bmbt_key_t
),
528 .dup_cursor
= xfs_bmbt_dup_cursor
,
529 .update_cursor
= xfs_bmbt_update_cursor
,
530 .alloc_block
= xfs_bmbt_alloc_block
,
531 .free_block
= xfs_bmbt_free_block
,
532 .get_maxrecs
= xfs_bmbt_get_maxrecs
,
533 .get_minrecs
= xfs_bmbt_get_minrecs
,
534 .get_dmaxrecs
= xfs_bmbt_get_dmaxrecs
,
535 .init_key_from_rec
= xfs_bmbt_init_key_from_rec
,
536 .init_high_key_from_rec
= xfs_bmbt_init_high_key_from_rec
,
537 .init_rec_from_cur
= xfs_bmbt_init_rec_from_cur
,
538 .init_ptr_from_cur
= xfs_bmbt_init_ptr_from_cur
,
539 .key_diff
= xfs_bmbt_key_diff
,
540 .diff_two_keys
= xfs_bmbt_diff_two_keys
,
541 .buf_ops
= &xfs_bmbt_buf_ops
,
542 .keys_inorder
= xfs_bmbt_keys_inorder
,
543 .recs_inorder
= xfs_bmbt_recs_inorder
,
547 * Allocate a new bmap btree cursor.
549 struct xfs_btree_cur
* /* new bmap btree cursor */
550 xfs_bmbt_init_cursor(
551 struct xfs_mount
*mp
, /* file system mount point */
552 struct xfs_trans
*tp
, /* transaction pointer */
553 struct xfs_inode
*ip
, /* inode owning the btree */
554 int whichfork
) /* data or attr fork */
556 struct xfs_ifork
*ifp
= XFS_IFORK_PTR(ip
, whichfork
);
557 struct xfs_btree_cur
*cur
;
558 ASSERT(whichfork
!= XFS_COW_FORK
);
560 cur
= kmem_zone_zalloc(xfs_btree_cur_zone
, KM_NOFS
);
564 cur
->bc_nlevels
= be16_to_cpu(ifp
->if_broot
->bb_level
) + 1;
565 cur
->bc_btnum
= XFS_BTNUM_BMAP
;
566 cur
->bc_blocklog
= mp
->m_sb
.sb_blocklog
;
567 cur
->bc_statoff
= XFS_STATS_CALC_INDEX(xs_bmbt_2
);
569 cur
->bc_ops
= &xfs_bmbt_ops
;
570 cur
->bc_flags
= XFS_BTREE_LONG_PTRS
| XFS_BTREE_ROOT_IN_INODE
;
571 if (xfs_sb_version_hascrc(&mp
->m_sb
))
572 cur
->bc_flags
|= XFS_BTREE_CRC_BLOCKS
;
574 cur
->bc_private
.b
.forksize
= XFS_IFORK_SIZE(ip
, whichfork
);
575 cur
->bc_private
.b
.ip
= ip
;
576 cur
->bc_private
.b
.firstblock
= NULLFSBLOCK
;
577 cur
->bc_private
.b
.dfops
= NULL
;
578 cur
->bc_private
.b
.allocated
= 0;
579 cur
->bc_private
.b
.flags
= 0;
580 cur
->bc_private
.b
.whichfork
= whichfork
;
586 * Calculate number of records in a bmap btree block.
590 struct xfs_mount
*mp
,
594 blocklen
-= XFS_BMBT_BLOCK_LEN(mp
);
597 return blocklen
/ sizeof(xfs_bmbt_rec_t
);
598 return blocklen
/ (sizeof(xfs_bmbt_key_t
) + sizeof(xfs_bmbt_ptr_t
));
602 * Calculate number of records in a bmap btree inode root.
609 blocklen
-= sizeof(xfs_bmdr_block_t
);
612 return blocklen
/ sizeof(xfs_bmdr_rec_t
);
613 return blocklen
/ (sizeof(xfs_bmdr_key_t
) + sizeof(xfs_bmdr_ptr_t
));
617 * Change the owner of a btree format fork fo the inode passed in. Change it to
618 * the owner of that is passed in so that we can change owners before or after
619 * we switch forks between inodes. The operation that the caller is doing will
620 * determine whether is needs to change owner before or after the switch.
622 * For demand paged transactional modification, the fork switch should be done
623 * after reading in all the blocks, modifying them and pinning them in the
624 * transaction. For modification when the buffers are already pinned in memory,
625 * the fork switch can be done before changing the owner as we won't need to
626 * validate the owner until the btree buffers are unpinned and writes can occur
629 * For recovery based ownership change, there is no transactional context and
630 * so a buffer list must be supplied so that we can record the buffers that we
631 * modified for the caller to issue IO on.
634 xfs_bmbt_change_owner(
635 struct xfs_trans
*tp
,
636 struct xfs_inode
*ip
,
639 struct list_head
*buffer_list
)
641 struct xfs_btree_cur
*cur
;
644 ASSERT(tp
|| buffer_list
);
645 ASSERT(!(tp
&& buffer_list
));
646 if (whichfork
== XFS_DATA_FORK
)
647 ASSERT(ip
->i_d
.di_format
== XFS_DINODE_FMT_BTREE
);
649 ASSERT(ip
->i_d
.di_aformat
== XFS_DINODE_FMT_BTREE
);
651 cur
= xfs_bmbt_init_cursor(ip
->i_mount
, tp
, ip
, whichfork
);
654 cur
->bc_private
.b
.flags
|= XFS_BTCUR_BPRV_INVALID_OWNER
;
656 error
= xfs_btree_change_owner(cur
, new_owner
, buffer_list
);
657 xfs_btree_del_cursor(cur
, error
? XFS_BTREE_ERROR
: XFS_BTREE_NOERROR
);