2 * Copyright (c) 2000-2005 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
20 #include "xfs_types.h"
23 #include "xfs_trans.h"
26 #include "xfs_mount.h"
27 #include "xfs_bmap_btree.h"
28 #include "xfs_alloc_btree.h"
29 #include "xfs_ialloc_btree.h"
30 #include "xfs_dinode.h"
31 #include "xfs_inode.h"
32 #include "xfs_inode_item.h"
33 #include "xfs_btree.h"
34 #include "xfs_error.h"
35 #include "xfs_alloc.h"
36 #include "xfs_ialloc.h"
37 #include "xfs_fsops.h"
38 #include "xfs_itable.h"
39 #include "xfs_trans_space.h"
40 #include "xfs_rtalloc.h"
41 #include "xfs_filestream.h"
42 #include "xfs_trace.h"
45 * File system operations
55 memset(geo
, 0, sizeof(*geo
));
57 geo
->blocksize
= mp
->m_sb
.sb_blocksize
;
58 geo
->rtextsize
= mp
->m_sb
.sb_rextsize
;
59 geo
->agblocks
= mp
->m_sb
.sb_agblocks
;
60 geo
->agcount
= mp
->m_sb
.sb_agcount
;
61 geo
->logblocks
= mp
->m_sb
.sb_logblocks
;
62 geo
->sectsize
= mp
->m_sb
.sb_sectsize
;
63 geo
->inodesize
= mp
->m_sb
.sb_inodesize
;
64 geo
->imaxpct
= mp
->m_sb
.sb_imax_pct
;
65 geo
->datablocks
= mp
->m_sb
.sb_dblocks
;
66 geo
->rtblocks
= mp
->m_sb
.sb_rblocks
;
67 geo
->rtextents
= mp
->m_sb
.sb_rextents
;
68 geo
->logstart
= mp
->m_sb
.sb_logstart
;
69 ASSERT(sizeof(geo
->uuid
)==sizeof(mp
->m_sb
.sb_uuid
));
70 memcpy(geo
->uuid
, &mp
->m_sb
.sb_uuid
, sizeof(mp
->m_sb
.sb_uuid
));
71 if (new_version
>= 2) {
72 geo
->sunit
= mp
->m_sb
.sb_unit
;
73 geo
->swidth
= mp
->m_sb
.sb_width
;
75 if (new_version
>= 3) {
76 geo
->version
= XFS_FSOP_GEOM_VERSION
;
78 (xfs_sb_version_hasattr(&mp
->m_sb
) ?
79 XFS_FSOP_GEOM_FLAGS_ATTR
: 0) |
80 (xfs_sb_version_hasnlink(&mp
->m_sb
) ?
81 XFS_FSOP_GEOM_FLAGS_NLINK
: 0) |
82 (xfs_sb_version_hasquota(&mp
->m_sb
) ?
83 XFS_FSOP_GEOM_FLAGS_QUOTA
: 0) |
84 (xfs_sb_version_hasalign(&mp
->m_sb
) ?
85 XFS_FSOP_GEOM_FLAGS_IALIGN
: 0) |
86 (xfs_sb_version_hasdalign(&mp
->m_sb
) ?
87 XFS_FSOP_GEOM_FLAGS_DALIGN
: 0) |
88 (xfs_sb_version_hasshared(&mp
->m_sb
) ?
89 XFS_FSOP_GEOM_FLAGS_SHARED
: 0) |
90 (xfs_sb_version_hasextflgbit(&mp
->m_sb
) ?
91 XFS_FSOP_GEOM_FLAGS_EXTFLG
: 0) |
92 (xfs_sb_version_hasdirv2(&mp
->m_sb
) ?
93 XFS_FSOP_GEOM_FLAGS_DIRV2
: 0) |
94 (xfs_sb_version_hassector(&mp
->m_sb
) ?
95 XFS_FSOP_GEOM_FLAGS_SECTOR
: 0) |
96 (xfs_sb_version_hasasciici(&mp
->m_sb
) ?
97 XFS_FSOP_GEOM_FLAGS_DIRV2CI
: 0) |
98 (xfs_sb_version_haslazysbcount(&mp
->m_sb
) ?
99 XFS_FSOP_GEOM_FLAGS_LAZYSB
: 0) |
100 (xfs_sb_version_hasattr2(&mp
->m_sb
) ?
101 XFS_FSOP_GEOM_FLAGS_ATTR2
: 0);
102 geo
->logsectsize
= xfs_sb_version_hassector(&mp
->m_sb
) ?
103 mp
->m_sb
.sb_logsectsize
: BBSIZE
;
104 geo
->rtsectsize
= mp
->m_sb
.sb_blocksize
;
105 geo
->dirblocksize
= mp
->m_dirblksize
;
107 if (new_version
>= 4) {
109 (xfs_sb_version_haslogv2(&mp
->m_sb
) ?
110 XFS_FSOP_GEOM_FLAGS_LOGV2
: 0);
111 geo
->logsunit
= mp
->m_sb
.sb_logsunit
;
117 xfs_growfs_data_private(
118 xfs_mount_t
*mp
, /* mount point for filesystem */
119 xfs_growfs_data_t
*in
) /* growfs data input struct */
125 xfs_extlen_t tmpsize
;
126 xfs_alloc_rec_t
*arec
;
127 struct xfs_btree_block
*block
;
132 xfs_agnumber_t nagcount
;
133 xfs_agnumber_t nagimax
= 0;
134 xfs_rfsblock_t nb
, nb_mod
;
136 xfs_rfsblock_t nfree
;
137 xfs_agnumber_t oagcount
;
143 if (nb
< mp
->m_sb
.sb_dblocks
|| pct
< 0 || pct
> 100)
144 return XFS_ERROR(EINVAL
);
145 if ((error
= xfs_sb_validate_fsb_count(&mp
->m_sb
, nb
)))
147 dpct
= pct
- mp
->m_sb
.sb_imax_pct
;
148 bp
= xfs_buf_read_uncached(mp
->m_ddev_targp
,
149 XFS_FSB_TO_BB(mp
, nb
) - XFS_FSS_TO_BB(mp
, 1),
150 XFS_FSS_TO_BB(mp
, 1), 0);
155 new = nb
; /* use new as a temporary here */
156 nb_mod
= do_div(new, mp
->m_sb
.sb_agblocks
);
157 nagcount
= new + (nb_mod
!= 0);
158 if (nb_mod
&& nb_mod
< XFS_MIN_AG_BLOCKS
) {
160 nb
= (xfs_rfsblock_t
)nagcount
* mp
->m_sb
.sb_agblocks
;
161 if (nb
< mp
->m_sb
.sb_dblocks
)
162 return XFS_ERROR(EINVAL
);
164 new = nb
- mp
->m_sb
.sb_dblocks
;
165 oagcount
= mp
->m_sb
.sb_agcount
;
167 /* allocate the new per-ag structures */
168 if (nagcount
> oagcount
) {
169 error
= xfs_initialize_perag(mp
, nagcount
, &nagimax
);
174 tp
= xfs_trans_alloc(mp
, XFS_TRANS_GROWFS
);
175 tp
->t_flags
|= XFS_TRANS_RESERVE
;
176 if ((error
= xfs_trans_reserve(tp
, XFS_GROWFS_SPACE_RES(mp
),
177 XFS_GROWDATA_LOG_RES(mp
), 0, 0, 0))) {
178 xfs_trans_cancel(tp
, 0);
183 * Write new AG headers to disk. Non-transactional, but written
184 * synchronously so they are completed prior to the growfs transaction
188 for (agno
= nagcount
- 1; agno
>= oagcount
; agno
--, new -= agsize
) {
190 * AG freelist header block
192 bp
= xfs_buf_get(mp
->m_ddev_targp
,
193 XFS_AG_DADDR(mp
, agno
, XFS_AGF_DADDR(mp
)),
194 XFS_FSS_TO_BB(mp
, 1), XBF_MAPPED
);
199 agf
= XFS_BUF_TO_AGF(bp
);
200 memset(agf
, 0, mp
->m_sb
.sb_sectsize
);
201 agf
->agf_magicnum
= cpu_to_be32(XFS_AGF_MAGIC
);
202 agf
->agf_versionnum
= cpu_to_be32(XFS_AGF_VERSION
);
203 agf
->agf_seqno
= cpu_to_be32(agno
);
204 if (agno
== nagcount
- 1)
207 (agno
* (xfs_rfsblock_t
)mp
->m_sb
.sb_agblocks
);
209 agsize
= mp
->m_sb
.sb_agblocks
;
210 agf
->agf_length
= cpu_to_be32(agsize
);
211 agf
->agf_roots
[XFS_BTNUM_BNOi
] = cpu_to_be32(XFS_BNO_BLOCK(mp
));
212 agf
->agf_roots
[XFS_BTNUM_CNTi
] = cpu_to_be32(XFS_CNT_BLOCK(mp
));
213 agf
->agf_levels
[XFS_BTNUM_BNOi
] = cpu_to_be32(1);
214 agf
->agf_levels
[XFS_BTNUM_CNTi
] = cpu_to_be32(1);
215 agf
->agf_flfirst
= 0;
216 agf
->agf_fllast
= cpu_to_be32(XFS_AGFL_SIZE(mp
) - 1);
217 agf
->agf_flcount
= 0;
218 tmpsize
= agsize
- XFS_PREALLOC_BLOCKS(mp
);
219 agf
->agf_freeblks
= cpu_to_be32(tmpsize
);
220 agf
->agf_longest
= cpu_to_be32(tmpsize
);
221 error
= xfs_bwrite(bp
);
227 * AG inode header block
229 bp
= xfs_buf_get(mp
->m_ddev_targp
,
230 XFS_AG_DADDR(mp
, agno
, XFS_AGI_DADDR(mp
)),
231 XFS_FSS_TO_BB(mp
, 1), XBF_MAPPED
);
236 agi
= XFS_BUF_TO_AGI(bp
);
237 memset(agi
, 0, mp
->m_sb
.sb_sectsize
);
238 agi
->agi_magicnum
= cpu_to_be32(XFS_AGI_MAGIC
);
239 agi
->agi_versionnum
= cpu_to_be32(XFS_AGI_VERSION
);
240 agi
->agi_seqno
= cpu_to_be32(agno
);
241 agi
->agi_length
= cpu_to_be32(agsize
);
243 agi
->agi_root
= cpu_to_be32(XFS_IBT_BLOCK(mp
));
244 agi
->agi_level
= cpu_to_be32(1);
245 agi
->agi_freecount
= 0;
246 agi
->agi_newino
= cpu_to_be32(NULLAGINO
);
247 agi
->agi_dirino
= cpu_to_be32(NULLAGINO
);
248 for (bucket
= 0; bucket
< XFS_AGI_UNLINKED_BUCKETS
; bucket
++)
249 agi
->agi_unlinked
[bucket
] = cpu_to_be32(NULLAGINO
);
250 error
= xfs_bwrite(bp
);
256 * BNO btree root block
258 bp
= xfs_buf_get(mp
->m_ddev_targp
,
259 XFS_AGB_TO_DADDR(mp
, agno
, XFS_BNO_BLOCK(mp
)),
260 BTOBB(mp
->m_sb
.sb_blocksize
), XBF_MAPPED
);
265 block
= XFS_BUF_TO_BLOCK(bp
);
266 memset(block
, 0, mp
->m_sb
.sb_blocksize
);
267 block
->bb_magic
= cpu_to_be32(XFS_ABTB_MAGIC
);
269 block
->bb_numrecs
= cpu_to_be16(1);
270 block
->bb_u
.s
.bb_leftsib
= cpu_to_be32(NULLAGBLOCK
);
271 block
->bb_u
.s
.bb_rightsib
= cpu_to_be32(NULLAGBLOCK
);
272 arec
= XFS_ALLOC_REC_ADDR(mp
, block
, 1);
273 arec
->ar_startblock
= cpu_to_be32(XFS_PREALLOC_BLOCKS(mp
));
274 arec
->ar_blockcount
= cpu_to_be32(
275 agsize
- be32_to_cpu(arec
->ar_startblock
));
276 error
= xfs_bwrite(bp
);
282 * CNT btree root block
284 bp
= xfs_buf_get(mp
->m_ddev_targp
,
285 XFS_AGB_TO_DADDR(mp
, agno
, XFS_CNT_BLOCK(mp
)),
286 BTOBB(mp
->m_sb
.sb_blocksize
), XBF_MAPPED
);
291 block
= XFS_BUF_TO_BLOCK(bp
);
292 memset(block
, 0, mp
->m_sb
.sb_blocksize
);
293 block
->bb_magic
= cpu_to_be32(XFS_ABTC_MAGIC
);
295 block
->bb_numrecs
= cpu_to_be16(1);
296 block
->bb_u
.s
.bb_leftsib
= cpu_to_be32(NULLAGBLOCK
);
297 block
->bb_u
.s
.bb_rightsib
= cpu_to_be32(NULLAGBLOCK
);
298 arec
= XFS_ALLOC_REC_ADDR(mp
, block
, 1);
299 arec
->ar_startblock
= cpu_to_be32(XFS_PREALLOC_BLOCKS(mp
));
300 arec
->ar_blockcount
= cpu_to_be32(
301 agsize
- be32_to_cpu(arec
->ar_startblock
));
302 nfree
+= be32_to_cpu(arec
->ar_blockcount
);
303 error
= xfs_bwrite(bp
);
309 * INO btree root block
311 bp
= xfs_buf_get(mp
->m_ddev_targp
,
312 XFS_AGB_TO_DADDR(mp
, agno
, XFS_IBT_BLOCK(mp
)),
313 BTOBB(mp
->m_sb
.sb_blocksize
), XBF_MAPPED
);
318 block
= XFS_BUF_TO_BLOCK(bp
);
319 memset(block
, 0, mp
->m_sb
.sb_blocksize
);
320 block
->bb_magic
= cpu_to_be32(XFS_IBT_MAGIC
);
322 block
->bb_numrecs
= 0;
323 block
->bb_u
.s
.bb_leftsib
= cpu_to_be32(NULLAGBLOCK
);
324 block
->bb_u
.s
.bb_rightsib
= cpu_to_be32(NULLAGBLOCK
);
325 error
= xfs_bwrite(bp
);
330 xfs_trans_agblocks_delta(tp
, nfree
);
332 * There are new blocks in the old last a.g.
336 * Change the agi length.
338 error
= xfs_ialloc_read_agi(mp
, tp
, agno
, &bp
);
343 agi
= XFS_BUF_TO_AGI(bp
);
344 be32_add_cpu(&agi
->agi_length
, new);
345 ASSERT(nagcount
== oagcount
||
346 be32_to_cpu(agi
->agi_length
) == mp
->m_sb
.sb_agblocks
);
347 xfs_ialloc_log_agi(tp
, bp
, XFS_AGI_LENGTH
);
351 error
= xfs_alloc_read_agf(mp
, tp
, agno
, 0, &bp
);
356 agf
= XFS_BUF_TO_AGF(bp
);
357 be32_add_cpu(&agf
->agf_length
, new);
358 ASSERT(be32_to_cpu(agf
->agf_length
) ==
359 be32_to_cpu(agi
->agi_length
));
361 xfs_alloc_log_agf(tp
, bp
, XFS_AGF_LENGTH
);
363 * Free the new space.
365 error
= xfs_free_extent(tp
, XFS_AGB_TO_FSB(mp
, agno
,
366 be32_to_cpu(agf
->agf_length
) - new), new);
373 * Update changed superblock fields transactionally. These are not
374 * seen by the rest of the world until the transaction commit applies
375 * them atomically to the superblock.
377 if (nagcount
> oagcount
)
378 xfs_trans_mod_sb(tp
, XFS_TRANS_SB_AGCOUNT
, nagcount
- oagcount
);
379 if (nb
> mp
->m_sb
.sb_dblocks
)
380 xfs_trans_mod_sb(tp
, XFS_TRANS_SB_DBLOCKS
,
381 nb
- mp
->m_sb
.sb_dblocks
);
383 xfs_trans_mod_sb(tp
, XFS_TRANS_SB_FDBLOCKS
, nfree
);
385 xfs_trans_mod_sb(tp
, XFS_TRANS_SB_IMAXPCT
, dpct
);
386 error
= xfs_trans_commit(tp
, 0);
390 /* New allocation groups fully initialized, so update mount struct */
392 mp
->m_maxagi
= nagimax
;
393 if (mp
->m_sb
.sb_imax_pct
) {
394 __uint64_t icount
= mp
->m_sb
.sb_dblocks
* mp
->m_sb
.sb_imax_pct
;
396 mp
->m_maxicount
= icount
<< mp
->m_sb
.sb_inopblog
;
399 xfs_set_low_space_thresholds(mp
);
401 /* update secondary superblocks. */
402 for (agno
= 1; agno
< nagcount
; agno
++) {
403 error
= xfs_trans_read_buf(mp
, NULL
, mp
->m_ddev_targp
,
404 XFS_AGB_TO_DADDR(mp
, agno
, XFS_SB_BLOCK(mp
)),
405 XFS_FSS_TO_BB(mp
, 1), 0, &bp
);
408 "error %d reading secondary superblock for ag %d",
412 xfs_sb_to_disk(XFS_BUF_TO_SBP(bp
), &mp
->m_sb
, XFS_SB_ALL_BITS
);
414 * If we get an error writing out the alternate superblocks,
415 * just issue a warning and continue. The real work is
416 * already done and committed.
418 error
= xfs_bwrite(bp
);
422 "write error %d updating secondary superblock for ag %d",
424 break; /* no point in continuing */
430 xfs_trans_cancel(tp
, XFS_TRANS_ABORT
);
435 xfs_growfs_log_private(
436 xfs_mount_t
*mp
, /* mount point for filesystem */
437 xfs_growfs_log_t
*in
) /* growfs log input struct */
442 if (nb
< XFS_MIN_LOG_BLOCKS
|| nb
< XFS_B_TO_FSB(mp
, XFS_MIN_LOG_BYTES
))
443 return XFS_ERROR(EINVAL
);
444 if (nb
== mp
->m_sb
.sb_logblocks
&&
445 in
->isint
== (mp
->m_sb
.sb_logstart
!= 0))
446 return XFS_ERROR(EINVAL
);
448 * Moving the log is hard, need new interfaces to sync
449 * the log first, hold off all activity while moving it.
450 * Can have shorter or longer log in the same space,
451 * or transform internal to external log or vice versa.
453 return XFS_ERROR(ENOSYS
);
457 * protected versions of growfs function acquire and release locks on the mount
458 * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
466 xfs_growfs_data_t
*in
)
470 if (!capable(CAP_SYS_ADMIN
))
471 return XFS_ERROR(EPERM
);
472 if (!mutex_trylock(&mp
->m_growlock
))
473 return XFS_ERROR(EWOULDBLOCK
);
474 error
= xfs_growfs_data_private(mp
, in
);
475 mutex_unlock(&mp
->m_growlock
);
482 xfs_growfs_log_t
*in
)
486 if (!capable(CAP_SYS_ADMIN
))
487 return XFS_ERROR(EPERM
);
488 if (!mutex_trylock(&mp
->m_growlock
))
489 return XFS_ERROR(EWOULDBLOCK
);
490 error
= xfs_growfs_log_private(mp
, in
);
491 mutex_unlock(&mp
->m_growlock
);
496 * exported through ioctl XFS_IOC_FSCOUNTS
502 xfs_fsop_counts_t
*cnt
)
504 xfs_icsb_sync_counters(mp
, XFS_ICSB_LAZY_COUNT
);
505 spin_lock(&mp
->m_sb_lock
);
506 cnt
->freedata
= mp
->m_sb
.sb_fdblocks
- XFS_ALLOC_SET_ASIDE(mp
);
507 cnt
->freertx
= mp
->m_sb
.sb_frextents
;
508 cnt
->freeino
= mp
->m_sb
.sb_ifree
;
509 cnt
->allocino
= mp
->m_sb
.sb_icount
;
510 spin_unlock(&mp
->m_sb_lock
);
515 * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
517 * xfs_reserve_blocks is called to set m_resblks
518 * in the in-core mount table. The number of unused reserved blocks
519 * is kept in m_resblks_avail.
521 * Reserve the requested number of blocks if available. Otherwise return
522 * as many as possible to satisfy the request. The actual number
523 * reserved are returned in outval
525 * A null inval pointer indicates that only the current reserved blocks
526 * available should be returned no settings are changed.
533 xfs_fsop_resblks_t
*outval
)
535 __int64_t lcounter
, delta
, fdblks_delta
;
538 /* If inval is null, report current values and return */
539 if (inval
== (__uint64_t
*)NULL
) {
542 outval
->resblks
= mp
->m_resblks
;
543 outval
->resblks_avail
= mp
->m_resblks_avail
;
550 * With per-cpu counters, this becomes an interesting
551 * problem. we needto work out if we are freeing or allocation
552 * blocks first, then we can do the modification as necessary.
554 * We do this under the m_sb_lock so that if we are near
555 * ENOSPC, we will hold out any changes while we work out
556 * what to do. This means that the amount of free space can
557 * change while we do this, so we need to retry if we end up
558 * trying to reserve more space than is available.
560 * We also use the xfs_mod_incore_sb() interface so that we
561 * don't have to care about whether per cpu counter are
562 * enabled, disabled or even compiled in....
565 spin_lock(&mp
->m_sb_lock
);
566 xfs_icsb_sync_counters_locked(mp
, 0);
569 * If our previous reservation was larger than the current value,
570 * then move any unused blocks back to the free pool.
573 if (mp
->m_resblks
> request
) {
574 lcounter
= mp
->m_resblks_avail
- request
;
575 if (lcounter
> 0) { /* release unused blocks */
576 fdblks_delta
= lcounter
;
577 mp
->m_resblks_avail
-= lcounter
;
579 mp
->m_resblks
= request
;
583 free
= mp
->m_sb
.sb_fdblocks
- XFS_ALLOC_SET_ASIDE(mp
);
585 goto out
; /* ENOSPC and fdblks_delta = 0 */
587 delta
= request
- mp
->m_resblks
;
588 lcounter
= free
- delta
;
590 /* We can't satisfy the request, just get what we can */
591 mp
->m_resblks
+= free
;
592 mp
->m_resblks_avail
+= free
;
593 fdblks_delta
= -free
;
595 fdblks_delta
= -delta
;
596 mp
->m_resblks
= request
;
597 mp
->m_resblks_avail
+= delta
;
602 outval
->resblks
= mp
->m_resblks
;
603 outval
->resblks_avail
= mp
->m_resblks_avail
;
605 spin_unlock(&mp
->m_sb_lock
);
609 * If we are putting blocks back here, m_resblks_avail is
610 * already at its max so this will put it in the free pool.
612 * If we need space, we'll either succeed in getting it
613 * from the free block count or we'll get an enospc. If
614 * we get a ENOSPC, it means things changed while we were
615 * calculating fdblks_delta and so we should try again to
616 * see if there is anything left to reserve.
618 * Don't set the reserved flag here - we don't want to reserve
619 * the extra reserve blocks from the reserve.....
622 error
= xfs_icsb_modify_counters(mp
, XFS_SBS_FDBLOCKS
,
631 * Dump a transaction into the log that contains no real change. This is needed
632 * to be able to make the log dirty or stamp the current tail LSN into the log
633 * during the covering operation.
635 * We cannot use an inode here for this - that will push dirty state back up
636 * into the VFS and then periodic inode flushing will prevent log covering from
637 * making progress. Hence we log a field in the superblock instead and use a
638 * synchronous transaction to ensure the superblock is immediately unpinned
639 * and can be written back.
648 tp
= _xfs_trans_alloc(mp
, XFS_TRANS_DUMMY1
, KM_SLEEP
);
649 error
= xfs_trans_reserve(tp
, 0, mp
->m_sb
.sb_sectsize
+ 128, 0, 0,
650 XFS_DEFAULT_LOG_COUNT
);
652 xfs_trans_cancel(tp
, 0);
656 /* log the UUID because it is an unchanging field */
657 xfs_mod_sb(tp
, XFS_SB_UUID
);
658 xfs_trans_set_sync(tp
);
659 return xfs_trans_commit(tp
, 0);
668 case XFS_FSOP_GOING_FLAGS_DEFAULT
: {
669 struct super_block
*sb
= freeze_bdev(mp
->m_super
->s_bdev
);
671 if (sb
&& !IS_ERR(sb
)) {
672 xfs_force_shutdown(mp
, SHUTDOWN_FORCE_UMOUNT
);
673 thaw_bdev(sb
->s_bdev
, sb
);
678 case XFS_FSOP_GOING_FLAGS_LOGFLUSH
:
679 xfs_force_shutdown(mp
, SHUTDOWN_FORCE_UMOUNT
);
681 case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH
:
682 xfs_force_shutdown(mp
,
683 SHUTDOWN_FORCE_UMOUNT
| SHUTDOWN_LOG_IO_ERROR
);
686 return XFS_ERROR(EINVAL
);
693 * Force a shutdown of the filesystem instantly while keeping the filesystem
694 * consistent. We don't do an unmount here; just shutdown the shop, make sure
695 * that absolutely nothing persistent happens to this filesystem after this
699 xfs_do_force_shutdown(
707 logerror
= flags
& SHUTDOWN_LOG_IO_ERROR
;
709 if (!(flags
& SHUTDOWN_FORCE_UMOUNT
)) {
711 "%s(0x%x) called from line %d of file %s. Return address = 0x%p",
712 __func__
, flags
, lnnum
, fname
, __return_address
);
715 * No need to duplicate efforts.
717 if (XFS_FORCED_SHUTDOWN(mp
) && !logerror
)
721 * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
722 * queue up anybody new on the log reservations, and wakes up
723 * everybody who's sleeping on log reservations to tell them
726 if (xfs_log_force_umount(mp
, logerror
))
729 if (flags
& SHUTDOWN_CORRUPT_INCORE
) {
730 xfs_alert_tag(mp
, XFS_PTAG_SHUTDOWN_CORRUPT
,
731 "Corruption of in-memory data detected. Shutting down filesystem");
732 if (XFS_ERRLEVEL_HIGH
<= xfs_error_level
)
734 } else if (!(flags
& SHUTDOWN_FORCE_UMOUNT
)) {
736 xfs_alert_tag(mp
, XFS_PTAG_SHUTDOWN_LOGERROR
,
737 "Log I/O Error Detected. Shutting down filesystem");
738 } else if (flags
& SHUTDOWN_DEVICE_REQ
) {
739 xfs_alert_tag(mp
, XFS_PTAG_SHUTDOWN_IOERROR
,
740 "All device paths lost. Shutting down filesystem");
741 } else if (!(flags
& SHUTDOWN_REMOTE_REQ
)) {
742 xfs_alert_tag(mp
, XFS_PTAG_SHUTDOWN_IOERROR
,
743 "I/O Error Detected. Shutting down filesystem");
746 if (!(flags
& SHUTDOWN_FORCE_UMOUNT
)) {
748 "Please umount the filesystem and rectify the problem(s)");