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"
22 #include "xfs_trans.h"
25 #include "xfs_mount.h"
26 #include "xfs_bmap_btree.h"
27 #include "xfs_alloc_btree.h"
28 #include "xfs_ialloc_btree.h"
29 #include "xfs_dinode.h"
30 #include "xfs_inode.h"
31 #include "xfs_inode_item.h"
32 #include "xfs_btree.h"
33 #include "xfs_error.h"
34 #include "xfs_alloc.h"
35 #include "xfs_ialloc.h"
36 #include "xfs_fsops.h"
37 #include "xfs_itable.h"
38 #include "xfs_trans_space.h"
39 #include "xfs_rtalloc.h"
40 #include "xfs_filestream.h"
41 #include "xfs_trace.h"
44 * File system operations
54 memset(geo, 0, sizeof(*geo));
56 geo->blocksize = mp->m_sb.sb_blocksize;
57 geo->rtextsize = mp->m_sb.sb_rextsize;
58 geo->agblocks = mp->m_sb.sb_agblocks;
59 geo->agcount = mp->m_sb.sb_agcount;
60 geo->logblocks = mp->m_sb.sb_logblocks;
61 geo->sectsize = mp->m_sb.sb_sectsize;
62 geo->inodesize = mp->m_sb.sb_inodesize;
63 geo->imaxpct = mp->m_sb.sb_imax_pct;
64 geo->datablocks = mp->m_sb.sb_dblocks;
65 geo->rtblocks = mp->m_sb.sb_rblocks;
66 geo->rtextents = mp->m_sb.sb_rextents;
67 geo->logstart = mp->m_sb.sb_logstart;
68 ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid));
69 memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid));
70 if (new_version >= 2) {
71 geo->sunit = mp->m_sb.sb_unit;
72 geo->swidth = mp->m_sb.sb_width;
74 if (new_version >= 3) {
75 geo->version = XFS_FSOP_GEOM_VERSION;
77 (xfs_sb_version_hasattr(&mp->m_sb) ?
78 XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
79 (xfs_sb_version_hasnlink(&mp->m_sb) ?
80 XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
81 (xfs_sb_version_hasquota(&mp->m_sb) ?
82 XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
83 (xfs_sb_version_hasalign(&mp->m_sb) ?
84 XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
85 (xfs_sb_version_hasdalign(&mp->m_sb) ?
86 XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
87 (xfs_sb_version_hasshared(&mp->m_sb) ?
88 XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
89 (xfs_sb_version_hasextflgbit(&mp->m_sb) ?
90 XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
91 (xfs_sb_version_hasdirv2(&mp->m_sb) ?
92 XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
93 (xfs_sb_version_hassector(&mp->m_sb) ?
94 XFS_FSOP_GEOM_FLAGS_SECTOR : 0) |
95 (xfs_sb_version_hasasciici(&mp->m_sb) ?
96 XFS_FSOP_GEOM_FLAGS_DIRV2CI : 0) |
97 (xfs_sb_version_haslazysbcount(&mp->m_sb) ?
98 XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) |
99 (xfs_sb_version_hasattr2(&mp->m_sb) ?
100 XFS_FSOP_GEOM_FLAGS_ATTR2 : 0) |
101 (xfs_sb_version_hasprojid32bit(&mp->m_sb) ?
102 XFS_FSOP_GEOM_FLAGS_PROJID32 : 0);
103 geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
104 mp->m_sb.sb_logsectsize : BBSIZE;
105 geo->rtsectsize = mp->m_sb.sb_blocksize;
106 geo->dirblocksize = mp->m_dirblksize;
108 if (new_version >= 4) {
110 (xfs_sb_version_haslogv2(&mp->m_sb) ?
111 XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
112 geo->logsunit = mp->m_sb.sb_logsunit;
117 static struct xfs_buf *
118 xfs_growfs_get_hdr_buf(
119 struct xfs_mount *mp,
123 const struct xfs_buf_ops *ops)
127 bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags);
131 xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
133 bp->b_maps[0].bm_bn = blkno;
140 xfs_growfs_data_private(
141 xfs_mount_t *mp, /* mount point for filesystem */
142 xfs_growfs_data_t *in) /* growfs data input struct */
145 struct xfs_agfl *agfl;
149 xfs_extlen_t tmpsize;
150 xfs_alloc_rec_t *arec;
155 xfs_agnumber_t nagcount;
156 xfs_agnumber_t nagimax = 0;
157 xfs_rfsblock_t nb, nb_mod;
159 xfs_rfsblock_t nfree;
160 xfs_agnumber_t oagcount;
166 if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
167 return XFS_ERROR(EINVAL);
168 if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
170 dpct = pct - mp->m_sb.sb_imax_pct;
171 bp = xfs_buf_read_uncached(mp->m_ddev_targp,
172 XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
173 XFS_FSS_TO_BB(mp, 1), 0, NULL);
177 int error = bp->b_error;
183 new = nb; /* use new as a temporary here */
184 nb_mod = do_div(new, mp->m_sb.sb_agblocks);
185 nagcount = new + (nb_mod != 0);
186 if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) {
188 nb = (xfs_rfsblock_t)nagcount * mp->m_sb.sb_agblocks;
189 if (nb < mp->m_sb.sb_dblocks)
190 return XFS_ERROR(EINVAL);
192 new = nb - mp->m_sb.sb_dblocks;
193 oagcount = mp->m_sb.sb_agcount;
195 /* allocate the new per-ag structures */
196 if (nagcount > oagcount) {
197 error = xfs_initialize_perag(mp, nagcount, &nagimax);
202 tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
203 tp->t_flags |= XFS_TRANS_RESERVE;
204 if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
205 XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) {
206 xfs_trans_cancel(tp, 0);
211 * Write new AG headers to disk. Non-transactional, but written
212 * synchronously so they are completed prior to the growfs transaction
216 for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
218 * AG freespace header block
220 bp = xfs_growfs_get_hdr_buf(mp,
221 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
222 XFS_FSS_TO_BB(mp, 1), 0,
229 agf = XFS_BUF_TO_AGF(bp);
230 agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
231 agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
232 agf->agf_seqno = cpu_to_be32(agno);
233 if (agno == nagcount - 1)
236 (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
238 agsize = mp->m_sb.sb_agblocks;
239 agf->agf_length = cpu_to_be32(agsize);
240 agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp));
241 agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
242 agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
243 agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
244 agf->agf_flfirst = 0;
245 agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
246 agf->agf_flcount = 0;
247 tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
248 agf->agf_freeblks = cpu_to_be32(tmpsize);
249 agf->agf_longest = cpu_to_be32(tmpsize);
250 if (xfs_sb_version_hascrc(&mp->m_sb))
251 uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_uuid);
253 error = xfs_bwrite(bp);
259 * AG freelist header block
261 bp = xfs_growfs_get_hdr_buf(mp,
262 XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)),
263 XFS_FSS_TO_BB(mp, 1), 0,
270 agfl = XFS_BUF_TO_AGFL(bp);
271 if (xfs_sb_version_hascrc(&mp->m_sb)) {
272 agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
273 agfl->agfl_seqno = cpu_to_be32(agno);
274 uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_uuid);
276 for (bucket = 0; bucket < XFS_AGFL_SIZE(mp); bucket++)
277 agfl->agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK);
279 error = xfs_bwrite(bp);
285 * AG inode header block
287 bp = xfs_growfs_get_hdr_buf(mp,
288 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
289 XFS_FSS_TO_BB(mp, 1), 0,
296 agi = XFS_BUF_TO_AGI(bp);
297 agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
298 agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
299 agi->agi_seqno = cpu_to_be32(agno);
300 agi->agi_length = cpu_to_be32(agsize);
302 agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp));
303 agi->agi_level = cpu_to_be32(1);
304 agi->agi_freecount = 0;
305 agi->agi_newino = cpu_to_be32(NULLAGINO);
306 agi->agi_dirino = cpu_to_be32(NULLAGINO);
307 if (xfs_sb_version_hascrc(&mp->m_sb))
308 uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_uuid);
309 for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
310 agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
312 error = xfs_bwrite(bp);
318 * BNO btree root block
320 bp = xfs_growfs_get_hdr_buf(mp,
321 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
322 BTOBB(mp->m_sb.sb_blocksize), 0,
323 &xfs_allocbt_buf_ops);
330 if (xfs_sb_version_hascrc(&mp->m_sb))
331 xfs_btree_init_block(mp, bp, XFS_ABTB_CRC_MAGIC, 0, 1,
332 agno, XFS_BTREE_CRC_BLOCKS);
334 xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1,
337 arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
338 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
339 arec->ar_blockcount = cpu_to_be32(
340 agsize - be32_to_cpu(arec->ar_startblock));
342 error = xfs_bwrite(bp);
348 * CNT btree root block
350 bp = xfs_growfs_get_hdr_buf(mp,
351 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
352 BTOBB(mp->m_sb.sb_blocksize), 0,
353 &xfs_allocbt_buf_ops);
359 if (xfs_sb_version_hascrc(&mp->m_sb))
360 xfs_btree_init_block(mp, bp, XFS_ABTC_CRC_MAGIC, 0, 1,
361 agno, XFS_BTREE_CRC_BLOCKS);
363 xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1,
366 arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
367 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
368 arec->ar_blockcount = cpu_to_be32(
369 agsize - be32_to_cpu(arec->ar_startblock));
370 nfree += be32_to_cpu(arec->ar_blockcount);
372 error = xfs_bwrite(bp);
378 * INO btree root block
380 bp = xfs_growfs_get_hdr_buf(mp,
381 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
382 BTOBB(mp->m_sb.sb_blocksize), 0,
389 if (xfs_sb_version_hascrc(&mp->m_sb))
390 xfs_btree_init_block(mp, bp, XFS_IBT_CRC_MAGIC, 0, 0,
391 agno, XFS_BTREE_CRC_BLOCKS);
393 xfs_btree_init_block(mp, bp, XFS_IBT_MAGIC, 0, 0,
396 error = xfs_bwrite(bp);
401 xfs_trans_agblocks_delta(tp, nfree);
403 * There are new blocks in the old last a.g.
407 * Change the agi length.
409 error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
414 agi = XFS_BUF_TO_AGI(bp);
415 be32_add_cpu(&agi->agi_length, new);
416 ASSERT(nagcount == oagcount ||
417 be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
418 xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
422 error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
427 agf = XFS_BUF_TO_AGF(bp);
428 be32_add_cpu(&agf->agf_length, new);
429 ASSERT(be32_to_cpu(agf->agf_length) ==
430 be32_to_cpu(agi->agi_length));
432 xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
434 * Free the new space.
436 error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno,
437 be32_to_cpu(agf->agf_length) - new), new);
444 * Update changed superblock fields transactionally. These are not
445 * seen by the rest of the world until the transaction commit applies
446 * them atomically to the superblock.
448 if (nagcount > oagcount)
449 xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
450 if (nb > mp->m_sb.sb_dblocks)
451 xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
452 nb - mp->m_sb.sb_dblocks);
454 xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
456 xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
457 error = xfs_trans_commit(tp, 0);
461 /* New allocation groups fully initialized, so update mount struct */
463 mp->m_maxagi = nagimax;
464 if (mp->m_sb.sb_imax_pct) {
465 __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
467 mp->m_maxicount = icount << mp->m_sb.sb_inopblog;
470 xfs_set_low_space_thresholds(mp);
472 /* update secondary superblocks. */
473 for (agno = 1; agno < nagcount; agno++) {
476 * new secondary superblocks need to be zeroed, not read from
477 * disk as the contents of the new area we are growing into is
478 * completely unknown.
480 if (agno < oagcount) {
481 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
482 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
483 XFS_FSS_TO_BB(mp, 1), 0, &bp,
486 bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp,
487 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
488 XFS_FSS_TO_BB(mp, 1), 0);
490 bp->b_ops = &xfs_sb_buf_ops;
491 xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
498 "error %d reading secondary superblock for ag %d",
502 xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
505 * If we get an error writing out the alternate superblocks,
506 * just issue a warning and continue. The real work is
507 * already done and committed.
509 error = xfs_bwrite(bp);
513 "write error %d updating secondary superblock for ag %d",
515 break; /* no point in continuing */
521 xfs_trans_cancel(tp, XFS_TRANS_ABORT);
526 xfs_growfs_log_private(
527 xfs_mount_t *mp, /* mount point for filesystem */
528 xfs_growfs_log_t *in) /* growfs log input struct */
533 if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
534 return XFS_ERROR(EINVAL);
535 if (nb == mp->m_sb.sb_logblocks &&
536 in->isint == (mp->m_sb.sb_logstart != 0))
537 return XFS_ERROR(EINVAL);
539 * Moving the log is hard, need new interfaces to sync
540 * the log first, hold off all activity while moving it.
541 * Can have shorter or longer log in the same space,
542 * or transform internal to external log or vice versa.
544 return XFS_ERROR(ENOSYS);
548 * protected versions of growfs function acquire and release locks on the mount
549 * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
557 xfs_growfs_data_t *in)
561 if (!capable(CAP_SYS_ADMIN))
562 return XFS_ERROR(EPERM);
563 if (!mutex_trylock(&mp->m_growlock))
564 return XFS_ERROR(EWOULDBLOCK);
565 error = xfs_growfs_data_private(mp, in);
566 mutex_unlock(&mp->m_growlock);
573 xfs_growfs_log_t *in)
577 if (!capable(CAP_SYS_ADMIN))
578 return XFS_ERROR(EPERM);
579 if (!mutex_trylock(&mp->m_growlock))
580 return XFS_ERROR(EWOULDBLOCK);
581 error = xfs_growfs_log_private(mp, in);
582 mutex_unlock(&mp->m_growlock);
587 * exported through ioctl XFS_IOC_FSCOUNTS
593 xfs_fsop_counts_t *cnt)
595 xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
596 spin_lock(&mp->m_sb_lock);
597 cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
598 cnt->freertx = mp->m_sb.sb_frextents;
599 cnt->freeino = mp->m_sb.sb_ifree;
600 cnt->allocino = mp->m_sb.sb_icount;
601 spin_unlock(&mp->m_sb_lock);
606 * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
608 * xfs_reserve_blocks is called to set m_resblks
609 * in the in-core mount table. The number of unused reserved blocks
610 * is kept in m_resblks_avail.
612 * Reserve the requested number of blocks if available. Otherwise return
613 * as many as possible to satisfy the request. The actual number
614 * reserved are returned in outval
616 * A null inval pointer indicates that only the current reserved blocks
617 * available should be returned no settings are changed.
624 xfs_fsop_resblks_t *outval)
626 __int64_t lcounter, delta, fdblks_delta;
629 /* If inval is null, report current values and return */
630 if (inval == (__uint64_t *)NULL) {
633 outval->resblks = mp->m_resblks;
634 outval->resblks_avail = mp->m_resblks_avail;
641 * With per-cpu counters, this becomes an interesting
642 * problem. we needto work out if we are freeing or allocation
643 * blocks first, then we can do the modification as necessary.
645 * We do this under the m_sb_lock so that if we are near
646 * ENOSPC, we will hold out any changes while we work out
647 * what to do. This means that the amount of free space can
648 * change while we do this, so we need to retry if we end up
649 * trying to reserve more space than is available.
651 * We also use the xfs_mod_incore_sb() interface so that we
652 * don't have to care about whether per cpu counter are
653 * enabled, disabled or even compiled in....
656 spin_lock(&mp->m_sb_lock);
657 xfs_icsb_sync_counters_locked(mp, 0);
660 * If our previous reservation was larger than the current value,
661 * then move any unused blocks back to the free pool.
664 if (mp->m_resblks > request) {
665 lcounter = mp->m_resblks_avail - request;
666 if (lcounter > 0) { /* release unused blocks */
667 fdblks_delta = lcounter;
668 mp->m_resblks_avail -= lcounter;
670 mp->m_resblks = request;
674 free = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
676 goto out; /* ENOSPC and fdblks_delta = 0 */
678 delta = request - mp->m_resblks;
679 lcounter = free - delta;
681 /* We can't satisfy the request, just get what we can */
682 mp->m_resblks += free;
683 mp->m_resblks_avail += free;
684 fdblks_delta = -free;
686 fdblks_delta = -delta;
687 mp->m_resblks = request;
688 mp->m_resblks_avail += delta;
693 outval->resblks = mp->m_resblks;
694 outval->resblks_avail = mp->m_resblks_avail;
696 spin_unlock(&mp->m_sb_lock);
700 * If we are putting blocks back here, m_resblks_avail is
701 * already at its max so this will put it in the free pool.
703 * If we need space, we'll either succeed in getting it
704 * from the free block count or we'll get an enospc. If
705 * we get a ENOSPC, it means things changed while we were
706 * calculating fdblks_delta and so we should try again to
707 * see if there is anything left to reserve.
709 * Don't set the reserved flag here - we don't want to reserve
710 * the extra reserve blocks from the reserve.....
713 error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
722 * Dump a transaction into the log that contains no real change. This is needed
723 * to be able to make the log dirty or stamp the current tail LSN into the log
724 * during the covering operation.
726 * We cannot use an inode here for this - that will push dirty state back up
727 * into the VFS and then periodic inode flushing will prevent log covering from
728 * making progress. Hence we log a field in the superblock instead and use a
729 * synchronous transaction to ensure the superblock is immediately unpinned
730 * and can be written back.
739 tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
740 error = xfs_trans_reserve(tp, 0, XFS_SB_LOG_RES(mp), 0, 0,
741 XFS_DEFAULT_LOG_COUNT);
743 xfs_trans_cancel(tp, 0);
747 /* log the UUID because it is an unchanging field */
748 xfs_mod_sb(tp, XFS_SB_UUID);
749 xfs_trans_set_sync(tp);
750 return xfs_trans_commit(tp, 0);
759 case XFS_FSOP_GOING_FLAGS_DEFAULT: {
760 struct super_block *sb = freeze_bdev(mp->m_super->s_bdev);
762 if (sb && !IS_ERR(sb)) {
763 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
764 thaw_bdev(sb->s_bdev, sb);
769 case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
770 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
772 case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH:
773 xfs_force_shutdown(mp,
774 SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR);
777 return XFS_ERROR(EINVAL);
784 * Force a shutdown of the filesystem instantly while keeping the filesystem
785 * consistent. We don't do an unmount here; just shutdown the shop, make sure
786 * that absolutely nothing persistent happens to this filesystem after this
790 xfs_do_force_shutdown(
798 logerror = flags & SHUTDOWN_LOG_IO_ERROR;
800 if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
802 "%s(0x%x) called from line %d of file %s. Return address = 0x%p",
803 __func__, flags, lnnum, fname, __return_address);
806 * No need to duplicate efforts.
808 if (XFS_FORCED_SHUTDOWN(mp) && !logerror)
812 * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
813 * queue up anybody new on the log reservations, and wakes up
814 * everybody who's sleeping on log reservations to tell them
817 if (xfs_log_force_umount(mp, logerror))
820 if (flags & SHUTDOWN_CORRUPT_INCORE) {
821 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
822 "Corruption of in-memory data detected. Shutting down filesystem");
823 if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
825 } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
827 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
828 "Log I/O Error Detected. Shutting down filesystem");
829 } else if (flags & SHUTDOWN_DEVICE_REQ) {
830 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
831 "All device paths lost. Shutting down filesystem");
832 } else if (!(flags & SHUTDOWN_REMOTE_REQ)) {
833 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
834 "I/O Error Detected. Shutting down filesystem");
837 if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
839 "Please umount the filesystem and rectify the problem(s)");