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,
126 bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags);
130 xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
132 bp->b_maps[0].bm_bn = blkno;
138 xfs_growfs_data_private(
139 xfs_mount_t *mp, /* mount point for filesystem */
140 xfs_growfs_data_t *in) /* growfs data input struct */
143 struct xfs_agfl *agfl;
147 xfs_extlen_t tmpsize;
148 xfs_alloc_rec_t *arec;
153 xfs_agnumber_t nagcount;
154 xfs_agnumber_t nagimax = 0;
155 xfs_rfsblock_t nb, nb_mod;
157 xfs_rfsblock_t nfree;
158 xfs_agnumber_t oagcount;
164 if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
165 return XFS_ERROR(EINVAL);
166 if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
168 dpct = pct - mp->m_sb.sb_imax_pct;
169 bp = xfs_buf_read_uncached(mp->m_ddev_targp,
170 XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
171 XFS_FSS_TO_BB(mp, 1), 0, NULL);
175 int error = bp->b_error;
181 new = nb; /* use new as a temporary here */
182 nb_mod = do_div(new, mp->m_sb.sb_agblocks);
183 nagcount = new + (nb_mod != 0);
184 if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) {
186 nb = (xfs_rfsblock_t)nagcount * mp->m_sb.sb_agblocks;
187 if (nb < mp->m_sb.sb_dblocks)
188 return XFS_ERROR(EINVAL);
190 new = nb - mp->m_sb.sb_dblocks;
191 oagcount = mp->m_sb.sb_agcount;
193 /* allocate the new per-ag structures */
194 if (nagcount > oagcount) {
195 error = xfs_initialize_perag(mp, nagcount, &nagimax);
200 tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
201 tp->t_flags |= XFS_TRANS_RESERVE;
202 if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
203 XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) {
204 xfs_trans_cancel(tp, 0);
209 * Write new AG headers to disk. Non-transactional, but written
210 * synchronously so they are completed prior to the growfs transaction
214 for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
216 * AG freespace header block
218 bp = xfs_growfs_get_hdr_buf(mp,
219 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
220 XFS_FSS_TO_BB(mp, 1), 0);
225 bp->b_pre_io = xfs_agf_write_verify;
227 agf = XFS_BUF_TO_AGF(bp);
228 agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
229 agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
230 agf->agf_seqno = cpu_to_be32(agno);
231 if (agno == nagcount - 1)
234 (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
236 agsize = mp->m_sb.sb_agblocks;
237 agf->agf_length = cpu_to_be32(agsize);
238 agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp));
239 agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
240 agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
241 agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
242 agf->agf_flfirst = 0;
243 agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
244 agf->agf_flcount = 0;
245 tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
246 agf->agf_freeblks = cpu_to_be32(tmpsize);
247 agf->agf_longest = cpu_to_be32(tmpsize);
248 error = xfs_bwrite(bp);
254 * AG freelist header block
256 bp = xfs_growfs_get_hdr_buf(mp,
257 XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)),
258 XFS_FSS_TO_BB(mp, 1), 0);
263 bp->b_pre_io = xfs_agfl_write_verify;
265 agfl = XFS_BUF_TO_AGFL(bp);
266 for (bucket = 0; bucket < XFS_AGFL_SIZE(mp); bucket++)
267 agfl->agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK);
269 error = xfs_bwrite(bp);
275 * AG inode header block
277 bp = xfs_growfs_get_hdr_buf(mp,
278 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
279 XFS_FSS_TO_BB(mp, 1), 0);
284 bp->b_pre_io = xfs_agi_write_verify;
286 agi = XFS_BUF_TO_AGI(bp);
287 agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
288 agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
289 agi->agi_seqno = cpu_to_be32(agno);
290 agi->agi_length = cpu_to_be32(agsize);
292 agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp));
293 agi->agi_level = cpu_to_be32(1);
294 agi->agi_freecount = 0;
295 agi->agi_newino = cpu_to_be32(NULLAGINO);
296 agi->agi_dirino = cpu_to_be32(NULLAGINO);
297 for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
298 agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
299 error = xfs_bwrite(bp);
305 * BNO btree root block
307 bp = xfs_growfs_get_hdr_buf(mp,
308 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
309 BTOBB(mp->m_sb.sb_blocksize), 0);
316 xfs_btree_init_block(mp, bp, XFS_ABTB_MAGIC, 0, 1, 0);
317 arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
318 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
319 arec->ar_blockcount = cpu_to_be32(
320 agsize - be32_to_cpu(arec->ar_startblock));
322 error = xfs_bwrite(bp);
328 * CNT btree root block
330 bp = xfs_growfs_get_hdr_buf(mp,
331 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
332 BTOBB(mp->m_sb.sb_blocksize), 0);
338 xfs_btree_init_block(mp, bp, XFS_ABTC_MAGIC, 0, 1, 0);
339 arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
340 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
341 arec->ar_blockcount = cpu_to_be32(
342 agsize - be32_to_cpu(arec->ar_startblock));
343 nfree += be32_to_cpu(arec->ar_blockcount);
345 error = xfs_bwrite(bp);
351 * INO btree root block
353 bp = xfs_growfs_get_hdr_buf(mp,
354 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
355 BTOBB(mp->m_sb.sb_blocksize), 0);
361 xfs_btree_init_block(mp, bp, XFS_IBT_MAGIC, 0, 0, 0);
363 error = xfs_bwrite(bp);
368 xfs_trans_agblocks_delta(tp, nfree);
370 * There are new blocks in the old last a.g.
374 * Change the agi length.
376 error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
381 agi = XFS_BUF_TO_AGI(bp);
382 be32_add_cpu(&agi->agi_length, new);
383 ASSERT(nagcount == oagcount ||
384 be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
385 xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
389 error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
394 agf = XFS_BUF_TO_AGF(bp);
395 be32_add_cpu(&agf->agf_length, new);
396 ASSERT(be32_to_cpu(agf->agf_length) ==
397 be32_to_cpu(agi->agi_length));
399 xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
401 * Free the new space.
403 error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno,
404 be32_to_cpu(agf->agf_length) - new), new);
411 * Update changed superblock fields transactionally. These are not
412 * seen by the rest of the world until the transaction commit applies
413 * them atomically to the superblock.
415 if (nagcount > oagcount)
416 xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
417 if (nb > mp->m_sb.sb_dblocks)
418 xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
419 nb - mp->m_sb.sb_dblocks);
421 xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
423 xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
424 error = xfs_trans_commit(tp, 0);
428 /* New allocation groups fully initialized, so update mount struct */
430 mp->m_maxagi = nagimax;
431 if (mp->m_sb.sb_imax_pct) {
432 __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
434 mp->m_maxicount = icount << mp->m_sb.sb_inopblog;
437 xfs_set_low_space_thresholds(mp);
439 /* update secondary superblocks. */
440 for (agno = 1; agno < nagcount; agno++) {
443 * new secondary superblocks need to be zeroed, not read from
444 * disk as the contents of the new area we are growing into is
445 * completely unknown.
447 if (agno < oagcount) {
448 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
449 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
450 XFS_FSS_TO_BB(mp, 1), 0, &bp,
453 bp = xfs_trans_get_buf(NULL, mp->m_ddev_targp,
454 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
455 XFS_FSS_TO_BB(mp, 1), 0);
457 xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
458 bp->b_pre_io = xfs_sb_write_verify;
465 "error %d reading secondary superblock for ag %d",
469 xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
472 * If we get an error writing out the alternate superblocks,
473 * just issue a warning and continue. The real work is
474 * already done and committed.
476 error = xfs_bwrite(bp);
480 "write error %d updating secondary superblock for ag %d",
482 break; /* no point in continuing */
488 xfs_trans_cancel(tp, XFS_TRANS_ABORT);
493 xfs_growfs_log_private(
494 xfs_mount_t *mp, /* mount point for filesystem */
495 xfs_growfs_log_t *in) /* growfs log input struct */
500 if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
501 return XFS_ERROR(EINVAL);
502 if (nb == mp->m_sb.sb_logblocks &&
503 in->isint == (mp->m_sb.sb_logstart != 0))
504 return XFS_ERROR(EINVAL);
506 * Moving the log is hard, need new interfaces to sync
507 * the log first, hold off all activity while moving it.
508 * Can have shorter or longer log in the same space,
509 * or transform internal to external log or vice versa.
511 return XFS_ERROR(ENOSYS);
515 * protected versions of growfs function acquire and release locks on the mount
516 * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
524 xfs_growfs_data_t *in)
528 if (!capable(CAP_SYS_ADMIN))
529 return XFS_ERROR(EPERM);
530 if (!mutex_trylock(&mp->m_growlock))
531 return XFS_ERROR(EWOULDBLOCK);
532 error = xfs_growfs_data_private(mp, in);
533 mutex_unlock(&mp->m_growlock);
540 xfs_growfs_log_t *in)
544 if (!capable(CAP_SYS_ADMIN))
545 return XFS_ERROR(EPERM);
546 if (!mutex_trylock(&mp->m_growlock))
547 return XFS_ERROR(EWOULDBLOCK);
548 error = xfs_growfs_log_private(mp, in);
549 mutex_unlock(&mp->m_growlock);
554 * exported through ioctl XFS_IOC_FSCOUNTS
560 xfs_fsop_counts_t *cnt)
562 xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
563 spin_lock(&mp->m_sb_lock);
564 cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
565 cnt->freertx = mp->m_sb.sb_frextents;
566 cnt->freeino = mp->m_sb.sb_ifree;
567 cnt->allocino = mp->m_sb.sb_icount;
568 spin_unlock(&mp->m_sb_lock);
573 * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
575 * xfs_reserve_blocks is called to set m_resblks
576 * in the in-core mount table. The number of unused reserved blocks
577 * is kept in m_resblks_avail.
579 * Reserve the requested number of blocks if available. Otherwise return
580 * as many as possible to satisfy the request. The actual number
581 * reserved are returned in outval
583 * A null inval pointer indicates that only the current reserved blocks
584 * available should be returned no settings are changed.
591 xfs_fsop_resblks_t *outval)
593 __int64_t lcounter, delta, fdblks_delta;
596 /* If inval is null, report current values and return */
597 if (inval == (__uint64_t *)NULL) {
600 outval->resblks = mp->m_resblks;
601 outval->resblks_avail = mp->m_resblks_avail;
608 * With per-cpu counters, this becomes an interesting
609 * problem. we needto work out if we are freeing or allocation
610 * blocks first, then we can do the modification as necessary.
612 * We do this under the m_sb_lock so that if we are near
613 * ENOSPC, we will hold out any changes while we work out
614 * what to do. This means that the amount of free space can
615 * change while we do this, so we need to retry if we end up
616 * trying to reserve more space than is available.
618 * We also use the xfs_mod_incore_sb() interface so that we
619 * don't have to care about whether per cpu counter are
620 * enabled, disabled or even compiled in....
623 spin_lock(&mp->m_sb_lock);
624 xfs_icsb_sync_counters_locked(mp, 0);
627 * If our previous reservation was larger than the current value,
628 * then move any unused blocks back to the free pool.
631 if (mp->m_resblks > request) {
632 lcounter = mp->m_resblks_avail - request;
633 if (lcounter > 0) { /* release unused blocks */
634 fdblks_delta = lcounter;
635 mp->m_resblks_avail -= lcounter;
637 mp->m_resblks = request;
641 free = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
643 goto out; /* ENOSPC and fdblks_delta = 0 */
645 delta = request - mp->m_resblks;
646 lcounter = free - delta;
648 /* We can't satisfy the request, just get what we can */
649 mp->m_resblks += free;
650 mp->m_resblks_avail += free;
651 fdblks_delta = -free;
653 fdblks_delta = -delta;
654 mp->m_resblks = request;
655 mp->m_resblks_avail += delta;
660 outval->resblks = mp->m_resblks;
661 outval->resblks_avail = mp->m_resblks_avail;
663 spin_unlock(&mp->m_sb_lock);
667 * If we are putting blocks back here, m_resblks_avail is
668 * already at its max so this will put it in the free pool.
670 * If we need space, we'll either succeed in getting it
671 * from the free block count or we'll get an enospc. If
672 * we get a ENOSPC, it means things changed while we were
673 * calculating fdblks_delta and so we should try again to
674 * see if there is anything left to reserve.
676 * Don't set the reserved flag here - we don't want to reserve
677 * the extra reserve blocks from the reserve.....
680 error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
689 * Dump a transaction into the log that contains no real change. This is needed
690 * to be able to make the log dirty or stamp the current tail LSN into the log
691 * during the covering operation.
693 * We cannot use an inode here for this - that will push dirty state back up
694 * into the VFS and then periodic inode flushing will prevent log covering from
695 * making progress. Hence we log a field in the superblock instead and use a
696 * synchronous transaction to ensure the superblock is immediately unpinned
697 * and can be written back.
706 tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
707 error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
708 XFS_DEFAULT_LOG_COUNT);
710 xfs_trans_cancel(tp, 0);
714 /* log the UUID because it is an unchanging field */
715 xfs_mod_sb(tp, XFS_SB_UUID);
716 xfs_trans_set_sync(tp);
717 return xfs_trans_commit(tp, 0);
726 case XFS_FSOP_GOING_FLAGS_DEFAULT: {
727 struct super_block *sb = freeze_bdev(mp->m_super->s_bdev);
729 if (sb && !IS_ERR(sb)) {
730 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
731 thaw_bdev(sb->s_bdev, sb);
736 case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
737 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
739 case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH:
740 xfs_force_shutdown(mp,
741 SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR);
744 return XFS_ERROR(EINVAL);
751 * Force a shutdown of the filesystem instantly while keeping the filesystem
752 * consistent. We don't do an unmount here; just shutdown the shop, make sure
753 * that absolutely nothing persistent happens to this filesystem after this
757 xfs_do_force_shutdown(
765 logerror = flags & SHUTDOWN_LOG_IO_ERROR;
767 if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
769 "%s(0x%x) called from line %d of file %s. Return address = 0x%p",
770 __func__, flags, lnnum, fname, __return_address);
773 * No need to duplicate efforts.
775 if (XFS_FORCED_SHUTDOWN(mp) && !logerror)
779 * This flags XFS_MOUNT_FS_SHUTDOWN, makes sure that we don't
780 * queue up anybody new on the log reservations, and wakes up
781 * everybody who's sleeping on log reservations to tell them
784 if (xfs_log_force_umount(mp, logerror))
787 if (flags & SHUTDOWN_CORRUPT_INCORE) {
788 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
789 "Corruption of in-memory data detected. Shutting down filesystem");
790 if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
792 } else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
794 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
795 "Log I/O Error Detected. Shutting down filesystem");
796 } else if (flags & SHUTDOWN_DEVICE_REQ) {
797 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
798 "All device paths lost. Shutting down filesystem");
799 } else if (!(flags & SHUTDOWN_REMOTE_REQ)) {
800 xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
801 "I/O Error Detected. Shutting down filesystem");
804 if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
806 "Please umount the filesystem and rectify the problem(s)");