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2bd0ea18 | 1 | /* |
5e656dbb | 2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
da23017d | 3 | * All Rights Reserved. |
2bd0ea18 | 4 | * |
da23017d NS |
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 | |
2bd0ea18 NS |
7 | * published by the Free Software Foundation. |
8 | * | |
da23017d NS |
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. | |
2bd0ea18 | 13 | * |
da23017d NS |
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 | |
2bd0ea18 | 17 | */ |
9c799827 | 18 | #include "libxfs_priv.h" |
b626fb59 DC |
19 | #include "xfs_fs.h" |
20 | #include "xfs_shared.h" | |
21 | #include "xfs_format.h" | |
22 | #include "xfs_log_format.h" | |
23 | #include "xfs_trans_resv.h" | |
24 | #include "xfs_bit.h" | |
25 | #include "xfs_sb.h" | |
26 | #include "xfs_mount.h" | |
f944d3d0 | 27 | #include "xfs_defer.h" |
b626fb59 DC |
28 | #include "xfs_inode.h" |
29 | #include "xfs_ialloc.h" | |
30 | #include "xfs_alloc.h" | |
31 | #include "xfs_trace.h" | |
32 | #include "xfs_cksum.h" | |
33 | #include "xfs_trans.h" | |
34 | #include "xfs_bmap_btree.h" | |
35 | #include "xfs_alloc_btree.h" | |
36 | #include "xfs_ialloc_btree.h" | |
b3a96b46 | 37 | #include "xfs_rmap_btree.h" |
2bd0ea18 | 38 | |
4896e6c8 DC |
39 | /* |
40 | * Physical superblock buffer manipulations. Shared with libxfs in userspace. | |
41 | */ | |
42 | ||
56b2de80 DC |
43 | /* |
44 | * Reference counting access wrappers to the perag structures. | |
45 | * Because we never free per-ag structures, the only thing we | |
46 | * have to protect against changes is the tree structure itself. | |
47 | */ | |
48 | struct xfs_perag * | |
4896e6c8 DC |
49 | xfs_perag_get( |
50 | struct xfs_mount *mp, | |
51 | xfs_agnumber_t agno) | |
a33a9e62 | 52 | { |
56b2de80 DC |
53 | struct xfs_perag *pag; |
54 | int ref = 0; | |
55 | ||
56 | rcu_read_lock(); | |
57 | pag = radix_tree_lookup(&mp->m_perag_tree, agno); | |
58 | if (pag) { | |
59 | ASSERT(atomic_read(&pag->pag_ref) >= 0); | |
60 | ref = atomic_inc_return(&pag->pag_ref); | |
a33a9e62 | 61 | } |
56b2de80 | 62 | rcu_read_unlock(); |
a2ceac1f | 63 | trace_xfs_perag_get(mp, agno, ref, _RET_IP_); |
56b2de80 DC |
64 | return pag; |
65 | } | |
a33a9e62 | 66 | |
4896e6c8 DC |
67 | /* |
68 | * search from @first to find the next perag with the given tag set. | |
69 | */ | |
70 | struct xfs_perag * | |
71 | xfs_perag_get_tag( | |
72 | struct xfs_mount *mp, | |
73 | xfs_agnumber_t first, | |
74 | int tag) | |
75 | { | |
76 | struct xfs_perag *pag; | |
77 | int found; | |
78 | int ref; | |
79 | ||
80 | rcu_read_lock(); | |
81 | found = radix_tree_gang_lookup_tag(&mp->m_perag_tree, | |
82 | (void **)&pag, first, 1, tag); | |
83 | if (found <= 0) { | |
84 | rcu_read_unlock(); | |
85 | return NULL; | |
86 | } | |
87 | ref = atomic_inc_return(&pag->pag_ref); | |
88 | rcu_read_unlock(); | |
89 | trace_xfs_perag_get_tag(mp, pag->pag_agno, ref, _RET_IP_); | |
90 | return pag; | |
91 | } | |
92 | ||
56b2de80 | 93 | void |
4896e6c8 DC |
94 | xfs_perag_put( |
95 | struct xfs_perag *pag) | |
56b2de80 DC |
96 | { |
97 | int ref; | |
a33a9e62 | 98 | |
56b2de80 DC |
99 | ASSERT(atomic_read(&pag->pag_ref) > 0); |
100 | ref = atomic_dec_return(&pag->pag_ref); | |
101 | trace_xfs_perag_put(pag->pag_mount, pag->pag_agno, ref, _RET_IP_); | |
a33a9e62 | 102 | } |
cdded3d8 | 103 | |
a2ceac1f DC |
104 | /* |
105 | * Check the validity of the SB found. | |
106 | */ | |
107 | STATIC int | |
108 | xfs_mount_validate_sb( | |
109 | xfs_mount_t *mp, | |
110 | xfs_sb_t *sbp, | |
5629f836 DC |
111 | bool check_inprogress, |
112 | bool check_version) | |
a2ceac1f | 113 | { |
a2ceac1f DC |
114 | if (sbp->sb_magicnum != XFS_SB_MAGIC) { |
115 | xfs_warn(mp, "bad magic number"); | |
12b53197 | 116 | return -EWRONGFS; |
a2ceac1f DC |
117 | } |
118 | ||
5565d79a | 119 | |
a2ceac1f DC |
120 | if (!xfs_sb_good_version(sbp)) { |
121 | xfs_warn(mp, "bad version"); | |
12b53197 | 122 | return -EWRONGFS; |
a2ceac1f DC |
123 | } |
124 | ||
5565d79a | 125 | /* |
6567f1f9 | 126 | * Version 5 superblock feature mask validation. Reject combinations the |
4896e6c8 DC |
127 | * kernel cannot support up front before checking anything else. For |
128 | * write validation, we don't need to check feature masks. | |
5565d79a | 129 | */ |
5629f836 | 130 | if (check_version && XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) { |
6567f1f9 DC |
131 | if (xfs_sb_has_compat_feature(sbp, |
132 | XFS_SB_FEAT_COMPAT_UNKNOWN)) { | |
133 | xfs_warn(mp, | |
2c2ec8ff | 134 | "Superblock has unknown compatible features (0x%x) enabled.", |
6567f1f9 DC |
135 | (sbp->sb_features_compat & |
136 | XFS_SB_FEAT_COMPAT_UNKNOWN)); | |
2c2ec8ff JP |
137 | xfs_warn(mp, |
138 | "Using a more recent kernel is recommended."); | |
6567f1f9 DC |
139 | } |
140 | ||
141 | if (xfs_sb_has_ro_compat_feature(sbp, | |
142 | XFS_SB_FEAT_RO_COMPAT_UNKNOWN)) { | |
ff105f75 DC |
143 | xfs_alert(mp, |
144 | "Superblock has unknown read-only compatible features (0x%x) enabled.", | |
6567f1f9 DC |
145 | (sbp->sb_features_ro_compat & |
146 | XFS_SB_FEAT_RO_COMPAT_UNKNOWN)); | |
ff105f75 DC |
147 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { |
148 | xfs_warn(mp, | |
2c2ec8ff JP |
149 | "Attempted to mount read-only compatible filesystem read-write."); |
150 | xfs_warn(mp, | |
ff105f75 | 151 | "Filesystem can only be safely mounted read only."); |
2c2ec8ff | 152 | |
12b53197 | 153 | return -EINVAL; |
ff105f75 | 154 | } |
6567f1f9 DC |
155 | } |
156 | if (xfs_sb_has_incompat_feature(sbp, | |
157 | XFS_SB_FEAT_INCOMPAT_UNKNOWN)) { | |
158 | xfs_warn(mp, | |
2c2ec8ff | 159 | "Superblock has unknown incompatible features (0x%x) enabled.", |
6567f1f9 DC |
160 | (sbp->sb_features_incompat & |
161 | XFS_SB_FEAT_INCOMPAT_UNKNOWN)); | |
2c2ec8ff JP |
162 | xfs_warn(mp, |
163 | "Filesystem can not be safely mounted by this kernel."); | |
12b53197 | 164 | return -EINVAL; |
6567f1f9 | 165 | } |
a65d8d29 BF |
166 | } else if (xfs_sb_version_hascrc(sbp)) { |
167 | /* | |
168 | * We can't read verify the sb LSN because the read verifier is | |
169 | * called before the log is allocated and processed. We know the | |
170 | * log is set up before write verifier (!check_version) calls, | |
171 | * so just check it here. | |
172 | */ | |
173 | if (!xfs_log_check_lsn(mp, sbp->sb_lsn)) | |
174 | return -EFSCORRUPTED; | |
5565d79a DC |
175 | } |
176 | ||
4896e6c8 DC |
177 | if (xfs_sb_version_has_pquotino(sbp)) { |
178 | if (sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) { | |
179 | xfs_notice(mp, | |
12864fd9 | 180 | "Version 5 of Super block has XFS_OQUOTA bits."); |
12b53197 | 181 | return -EFSCORRUPTED; |
4896e6c8 DC |
182 | } |
183 | } else if (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD | | |
184 | XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) { | |
185 | xfs_notice(mp, | |
12864fd9 | 186 | "Superblock earlier than Version 5 has XFS_[PQ]UOTA_{ENFD|CHKD} bits."); |
12b53197 | 187 | return -EFSCORRUPTED; |
342aef1e CS |
188 | } |
189 | ||
7f5cd45d BF |
190 | /* |
191 | * Full inode chunks must be aligned to inode chunk size when | |
192 | * sparse inodes are enabled to support the sparse chunk | |
193 | * allocation algorithm and prevent overlapping inode records. | |
194 | */ | |
195 | if (xfs_sb_version_hassparseinodes(sbp)) { | |
196 | uint32_t align; | |
197 | ||
7f5cd45d BF |
198 | align = XFS_INODES_PER_CHUNK * sbp->sb_inodesize |
199 | >> sbp->sb_blocklog; | |
200 | if (sbp->sb_inoalignmt != align) { | |
201 | xfs_warn(mp, | |
202 | "Inode block alignment (%u) must match chunk size (%u) for sparse inodes.", | |
203 | sbp->sb_inoalignmt, align); | |
204 | return -EINVAL; | |
205 | } | |
206 | } | |
207 | ||
a2ceac1f | 208 | if (unlikely( |
6567f1f9 | 209 | sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) { |
a2ceac1f DC |
210 | xfs_warn(mp, |
211 | "filesystem is marked as having an external log; " | |
212 | "specify logdev on the mount command line."); | |
12b53197 | 213 | return -EINVAL; |
a2ceac1f DC |
214 | } |
215 | ||
216 | if (unlikely( | |
6567f1f9 | 217 | sbp->sb_logstart != 0 && mp->m_logdev_targp != mp->m_ddev_targp)) { |
a2ceac1f DC |
218 | xfs_warn(mp, |
219 | "filesystem is marked as having an internal log; " | |
220 | "do not specify logdev on the mount command line."); | |
12b53197 | 221 | return -EINVAL; |
a2ceac1f DC |
222 | } |
223 | ||
224 | /* | |
225 | * More sanity checking. Most of these were stolen directly from | |
226 | * xfs_repair. | |
227 | */ | |
228 | if (unlikely( | |
229 | sbp->sb_agcount <= 0 || | |
230 | sbp->sb_sectsize < XFS_MIN_SECTORSIZE || | |
231 | sbp->sb_sectsize > XFS_MAX_SECTORSIZE || | |
232 | sbp->sb_sectlog < XFS_MIN_SECTORSIZE_LOG || | |
233 | sbp->sb_sectlog > XFS_MAX_SECTORSIZE_LOG || | |
234 | sbp->sb_sectsize != (1 << sbp->sb_sectlog) || | |
235 | sbp->sb_blocksize < XFS_MIN_BLOCKSIZE || | |
236 | sbp->sb_blocksize > XFS_MAX_BLOCKSIZE || | |
237 | sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG || | |
238 | sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG || | |
239 | sbp->sb_blocksize != (1 << sbp->sb_blocklog) || | |
5a35bf2c | 240 | sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG || |
a2ceac1f DC |
241 | sbp->sb_inodesize < XFS_DINODE_MIN_SIZE || |
242 | sbp->sb_inodesize > XFS_DINODE_MAX_SIZE || | |
243 | sbp->sb_inodelog < XFS_DINODE_MIN_LOG || | |
244 | sbp->sb_inodelog > XFS_DINODE_MAX_LOG || | |
245 | sbp->sb_inodesize != (1 << sbp->sb_inodelog) || | |
5a35bf2c | 246 | sbp->sb_logsunit > XLOG_MAX_RECORD_BSIZE || |
4b0c789d | 247 | sbp->sb_inopblock != howmany(sbp->sb_blocksize,sbp->sb_inodesize) || |
a2ceac1f DC |
248 | (sbp->sb_blocklog - sbp->sb_inodelog != sbp->sb_inopblog) || |
249 | (sbp->sb_rextsize * sbp->sb_blocksize > XFS_MAX_RTEXTSIZE) || | |
250 | (sbp->sb_rextsize * sbp->sb_blocksize < XFS_MIN_RTEXTSIZE) || | |
251 | (sbp->sb_imax_pct > 100 /* zero sb_imax_pct is valid */) || | |
252 | sbp->sb_dblocks == 0 || | |
253 | sbp->sb_dblocks > XFS_MAX_DBLOCKS(sbp) || | |
ff105f75 DC |
254 | sbp->sb_dblocks < XFS_MIN_DBLOCKS(sbp) || |
255 | sbp->sb_shared_vn != 0)) { | |
ba5027e0 | 256 | xfs_notice(mp, "SB sanity check failed"); |
12b53197 | 257 | return -EFSCORRUPTED; |
a2ceac1f DC |
258 | } |
259 | ||
260 | /* | |
261 | * Currently only very few inode sizes are supported. | |
262 | */ | |
263 | switch (sbp->sb_inodesize) { | |
264 | case 256: | |
265 | case 512: | |
266 | case 1024: | |
267 | case 2048: | |
268 | break; | |
269 | default: | |
270 | xfs_warn(mp, "inode size of %d bytes not supported", | |
271 | sbp->sb_inodesize); | |
12b53197 | 272 | return -ENOSYS; |
a2ceac1f DC |
273 | } |
274 | ||
4896e6c8 DC |
275 | if (xfs_sb_validate_fsb_count(sbp, sbp->sb_dblocks) || |
276 | xfs_sb_validate_fsb_count(sbp, sbp->sb_rblocks)) { | |
277 | xfs_warn(mp, | |
278 | "file system too large to be mounted on this system."); | |
12b53197 | 279 | return -EFBIG; |
4896e6c8 DC |
280 | } |
281 | ||
a2ceac1f DC |
282 | return 0; |
283 | } | |
284 | ||
4896e6c8 DC |
285 | void |
286 | xfs_sb_quota_from_disk(struct xfs_sb *sbp) | |
287 | { | |
288 | /* | |
289 | * older mkfs doesn't initialize quota inodes to NULLFSINO. This | |
290 | * leads to in-core values having two different values for a quota | |
291 | * inode to be invalid: 0 and NULLFSINO. Change it to a single value | |
292 | * NULLFSINO. | |
293 | * | |
294 | * Note that this change affect only the in-core values. These | |
295 | * values are not written back to disk unless any quota information | |
296 | * is written to the disk. Even in that case, sb_pquotino field is | |
297 | * not written to disk unless the superblock supports pquotino. | |
298 | */ | |
299 | if (sbp->sb_uquotino == 0) | |
300 | sbp->sb_uquotino = NULLFSINO; | |
301 | if (sbp->sb_gquotino == 0) | |
302 | sbp->sb_gquotino = NULLFSINO; | |
303 | if (sbp->sb_pquotino == 0) | |
304 | sbp->sb_pquotino = NULLFSINO; | |
305 | ||
306 | /* | |
307 | * We need to do these manipilations only if we are working | |
308 | * with an older version of on-disk superblock. | |
309 | */ | |
310 | if (xfs_sb_version_has_pquotino(sbp)) | |
311 | return; | |
312 | ||
313 | if (sbp->sb_qflags & XFS_OQUOTA_ENFD) | |
314 | sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ? | |
315 | XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD; | |
316 | if (sbp->sb_qflags & XFS_OQUOTA_CHKD) | |
317 | sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ? | |
318 | XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD; | |
319 | sbp->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD); | |
320 | ||
ee375425 ES |
321 | if (sbp->sb_qflags & XFS_PQUOTA_ACCT && |
322 | sbp->sb_gquotino != NULLFSINO) { | |
4896e6c8 DC |
323 | /* |
324 | * In older version of superblock, on-disk superblock only | |
325 | * has sb_gquotino, and in-core superblock has both sb_gquotino | |
326 | * and sb_pquotino. But, only one of them is supported at any | |
327 | * point of time. So, if PQUOTA is set in disk superblock, | |
ee375425 ES |
328 | * copy over sb_gquotino to sb_pquotino. The NULLFSINO test |
329 | * above is to make sure we don't do this twice and wipe them | |
330 | * both out! | |
4896e6c8 DC |
331 | */ |
332 | sbp->sb_pquotino = sbp->sb_gquotino; | |
333 | sbp->sb_gquotino = NULLFSINO; | |
334 | } | |
335 | } | |
336 | ||
5a35bf2c DC |
337 | static void |
338 | __xfs_sb_from_disk( | |
4896e6c8 | 339 | struct xfs_sb *to, |
5a35bf2c DC |
340 | xfs_dsb_t *from, |
341 | bool convert_xquota) | |
5e656dbb BN |
342 | { |
343 | to->sb_magicnum = be32_to_cpu(from->sb_magicnum); | |
344 | to->sb_blocksize = be32_to_cpu(from->sb_blocksize); | |
345 | to->sb_dblocks = be64_to_cpu(from->sb_dblocks); | |
346 | to->sb_rblocks = be64_to_cpu(from->sb_rblocks); | |
347 | to->sb_rextents = be64_to_cpu(from->sb_rextents); | |
348 | memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid)); | |
349 | to->sb_logstart = be64_to_cpu(from->sb_logstart); | |
350 | to->sb_rootino = be64_to_cpu(from->sb_rootino); | |
351 | to->sb_rbmino = be64_to_cpu(from->sb_rbmino); | |
352 | to->sb_rsumino = be64_to_cpu(from->sb_rsumino); | |
353 | to->sb_rextsize = be32_to_cpu(from->sb_rextsize); | |
354 | to->sb_agblocks = be32_to_cpu(from->sb_agblocks); | |
355 | to->sb_agcount = be32_to_cpu(from->sb_agcount); | |
356 | to->sb_rbmblocks = be32_to_cpu(from->sb_rbmblocks); | |
357 | to->sb_logblocks = be32_to_cpu(from->sb_logblocks); | |
358 | to->sb_versionnum = be16_to_cpu(from->sb_versionnum); | |
359 | to->sb_sectsize = be16_to_cpu(from->sb_sectsize); | |
360 | to->sb_inodesize = be16_to_cpu(from->sb_inodesize); | |
361 | to->sb_inopblock = be16_to_cpu(from->sb_inopblock); | |
362 | memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname)); | |
363 | to->sb_blocklog = from->sb_blocklog; | |
364 | to->sb_sectlog = from->sb_sectlog; | |
365 | to->sb_inodelog = from->sb_inodelog; | |
366 | to->sb_inopblog = from->sb_inopblog; | |
367 | to->sb_agblklog = from->sb_agblklog; | |
368 | to->sb_rextslog = from->sb_rextslog; | |
369 | to->sb_inprogress = from->sb_inprogress; | |
370 | to->sb_imax_pct = from->sb_imax_pct; | |
371 | to->sb_icount = be64_to_cpu(from->sb_icount); | |
372 | to->sb_ifree = be64_to_cpu(from->sb_ifree); | |
373 | to->sb_fdblocks = be64_to_cpu(from->sb_fdblocks); | |
374 | to->sb_frextents = be64_to_cpu(from->sb_frextents); | |
375 | to->sb_uquotino = be64_to_cpu(from->sb_uquotino); | |
376 | to->sb_gquotino = be64_to_cpu(from->sb_gquotino); | |
377 | to->sb_qflags = be16_to_cpu(from->sb_qflags); | |
378 | to->sb_flags = from->sb_flags; | |
379 | to->sb_shared_vn = from->sb_shared_vn; | |
380 | to->sb_inoalignmt = be32_to_cpu(from->sb_inoalignmt); | |
381 | to->sb_unit = be32_to_cpu(from->sb_unit); | |
382 | to->sb_width = be32_to_cpu(from->sb_width); | |
383 | to->sb_dirblklog = from->sb_dirblklog; | |
384 | to->sb_logsectlog = from->sb_logsectlog; | |
385 | to->sb_logsectsize = be16_to_cpu(from->sb_logsectsize); | |
386 | to->sb_logsunit = be32_to_cpu(from->sb_logsunit); | |
387 | to->sb_features2 = be32_to_cpu(from->sb_features2); | |
388 | to->sb_bad_features2 = be32_to_cpu(from->sb_bad_features2); | |
5565d79a DC |
389 | to->sb_features_compat = be32_to_cpu(from->sb_features_compat); |
390 | to->sb_features_ro_compat = be32_to_cpu(from->sb_features_ro_compat); | |
391 | to->sb_features_incompat = be32_to_cpu(from->sb_features_incompat); | |
6567f1f9 DC |
392 | to->sb_features_log_incompat = |
393 | be32_to_cpu(from->sb_features_log_incompat); | |
5a35bf2c DC |
394 | /* crc is only used on disk, not in memory; just init to 0 here. */ |
395 | to->sb_crc = 0; | |
6bd8b7e1 | 396 | to->sb_spino_align = be32_to_cpu(from->sb_spino_align); |
5565d79a DC |
397 | to->sb_pquotino = be64_to_cpu(from->sb_pquotino); |
398 | to->sb_lsn = be64_to_cpu(from->sb_lsn); | |
9c4e12fb ES |
399 | /* |
400 | * sb_meta_uuid is only on disk if it differs from sb_uuid and the | |
401 | * feature flag is set; if not set we keep it only in memory. | |
402 | */ | |
403 | if (xfs_sb_version_hasmetauuid(to)) | |
404 | uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid); | |
405 | else | |
406 | uuid_copy(&to->sb_meta_uuid, &from->sb_uuid); | |
5a35bf2c DC |
407 | /* Convert on-disk flags to in-memory flags? */ |
408 | if (convert_xquota) | |
409 | xfs_sb_quota_from_disk(to); | |
410 | } | |
411 | ||
412 | void | |
413 | xfs_sb_from_disk( | |
414 | struct xfs_sb *to, | |
415 | xfs_dsb_t *from) | |
416 | { | |
417 | __xfs_sb_from_disk(to, from, true); | |
5e656dbb BN |
418 | } |
419 | ||
19ebedcf | 420 | static void |
342aef1e | 421 | xfs_sb_quota_to_disk( |
19ebedcf DC |
422 | struct xfs_dsb *to, |
423 | struct xfs_sb *from) | |
342aef1e CS |
424 | { |
425 | __uint16_t qflags = from->sb_qflags; | |
426 | ||
19ebedcf DC |
427 | to->sb_uquotino = cpu_to_be64(from->sb_uquotino); |
428 | if (xfs_sb_version_has_pquotino(from)) { | |
429 | to->sb_qflags = cpu_to_be16(from->sb_qflags); | |
430 | to->sb_gquotino = cpu_to_be64(from->sb_gquotino); | |
431 | to->sb_pquotino = cpu_to_be64(from->sb_pquotino); | |
432 | return; | |
433 | } | |
434 | ||
0340d706 | 435 | /* |
19ebedcf DC |
436 | * The in-core version of sb_qflags do not have XFS_OQUOTA_* |
437 | * flags, whereas the on-disk version does. So, convert incore | |
438 | * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags. | |
0340d706 | 439 | */ |
19ebedcf DC |
440 | qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | |
441 | XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); | |
0340d706 | 442 | |
19ebedcf DC |
443 | if (from->sb_qflags & |
444 | (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) | |
445 | qflags |= XFS_OQUOTA_ENFD; | |
446 | if (from->sb_qflags & | |
447 | (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) | |
448 | qflags |= XFS_OQUOTA_CHKD; | |
449 | to->sb_qflags = cpu_to_be16(qflags); | |
0340d706 CS |
450 | |
451 | /* | |
19ebedcf DC |
452 | * GQUOTINO and PQUOTINO cannot be used together in versions |
453 | * of superblock that do not have pquotino. from->sb_flags | |
454 | * tells us which quota is active and should be copied to | |
455 | * disk. If neither are active, we should NULL the inode. | |
ff105f75 | 456 | * |
19ebedcf DC |
457 | * In all cases, the separate pquotino must remain 0 because it |
458 | * it beyond the "end" of the valid non-pquotino superblock. | |
0340d706 | 459 | */ |
19ebedcf | 460 | if (from->sb_qflags & XFS_GQUOTA_ACCT) |
0340d706 | 461 | to->sb_gquotino = cpu_to_be64(from->sb_gquotino); |
19ebedcf | 462 | else if (from->sb_qflags & XFS_PQUOTA_ACCT) |
0340d706 | 463 | to->sb_gquotino = cpu_to_be64(from->sb_pquotino); |
ff105f75 DC |
464 | else { |
465 | /* | |
466 | * We can't rely on just the fields being logged to tell us | |
467 | * that it is safe to write NULLFSINO - we should only do that | |
468 | * if quotas are not actually enabled. Hence only write | |
469 | * NULLFSINO if both in-core quota inodes are NULL. | |
470 | */ | |
471 | if (from->sb_gquotino == NULLFSINO && | |
472 | from->sb_pquotino == NULLFSINO) | |
473 | to->sb_gquotino = cpu_to_be64(NULLFSINO); | |
474 | } | |
0340d706 | 475 | |
19ebedcf | 476 | to->sb_pquotino = 0; |
342aef1e CS |
477 | } |
478 | ||
5e656dbb BN |
479 | void |
480 | xfs_sb_to_disk( | |
19ebedcf DC |
481 | struct xfs_dsb *to, |
482 | struct xfs_sb *from) | |
5e656dbb | 483 | { |
19ebedcf | 484 | xfs_sb_quota_to_disk(to, from); |
5e656dbb | 485 | |
19ebedcf DC |
486 | to->sb_magicnum = cpu_to_be32(from->sb_magicnum); |
487 | to->sb_blocksize = cpu_to_be32(from->sb_blocksize); | |
488 | to->sb_dblocks = cpu_to_be64(from->sb_dblocks); | |
489 | to->sb_rblocks = cpu_to_be64(from->sb_rblocks); | |
490 | to->sb_rextents = cpu_to_be64(from->sb_rextents); | |
491 | memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid)); | |
492 | to->sb_logstart = cpu_to_be64(from->sb_logstart); | |
493 | to->sb_rootino = cpu_to_be64(from->sb_rootino); | |
494 | to->sb_rbmino = cpu_to_be64(from->sb_rbmino); | |
495 | to->sb_rsumino = cpu_to_be64(from->sb_rsumino); | |
496 | to->sb_rextsize = cpu_to_be32(from->sb_rextsize); | |
497 | to->sb_agblocks = cpu_to_be32(from->sb_agblocks); | |
498 | to->sb_agcount = cpu_to_be32(from->sb_agcount); | |
499 | to->sb_rbmblocks = cpu_to_be32(from->sb_rbmblocks); | |
500 | to->sb_logblocks = cpu_to_be32(from->sb_logblocks); | |
501 | to->sb_versionnum = cpu_to_be16(from->sb_versionnum); | |
502 | to->sb_sectsize = cpu_to_be16(from->sb_sectsize); | |
503 | to->sb_inodesize = cpu_to_be16(from->sb_inodesize); | |
504 | to->sb_inopblock = cpu_to_be16(from->sb_inopblock); | |
505 | memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname)); | |
506 | to->sb_blocklog = from->sb_blocklog; | |
507 | to->sb_sectlog = from->sb_sectlog; | |
508 | to->sb_inodelog = from->sb_inodelog; | |
509 | to->sb_inopblog = from->sb_inopblog; | |
510 | to->sb_agblklog = from->sb_agblklog; | |
511 | to->sb_rextslog = from->sb_rextslog; | |
512 | to->sb_inprogress = from->sb_inprogress; | |
513 | to->sb_imax_pct = from->sb_imax_pct; | |
514 | to->sb_icount = cpu_to_be64(from->sb_icount); | |
515 | to->sb_ifree = cpu_to_be64(from->sb_ifree); | |
516 | to->sb_fdblocks = cpu_to_be64(from->sb_fdblocks); | |
517 | to->sb_frextents = cpu_to_be64(from->sb_frextents); | |
518 | ||
519 | to->sb_flags = from->sb_flags; | |
520 | to->sb_shared_vn = from->sb_shared_vn; | |
521 | to->sb_inoalignmt = cpu_to_be32(from->sb_inoalignmt); | |
522 | to->sb_unit = cpu_to_be32(from->sb_unit); | |
523 | to->sb_width = cpu_to_be32(from->sb_width); | |
524 | to->sb_dirblklog = from->sb_dirblklog; | |
525 | to->sb_logsectlog = from->sb_logsectlog; | |
526 | to->sb_logsectsize = cpu_to_be16(from->sb_logsectsize); | |
527 | to->sb_logsunit = cpu_to_be32(from->sb_logsunit); | |
5e656dbb | 528 | |
19ebedcf DC |
529 | /* |
530 | * We need to ensure that bad_features2 always matches features2. | |
531 | * Hence we enforce that here rather than having to remember to do it | |
532 | * everywhere else that updates features2. | |
533 | */ | |
534 | from->sb_bad_features2 = from->sb_features2; | |
535 | to->sb_features2 = cpu_to_be32(from->sb_features2); | |
536 | to->sb_bad_features2 = cpu_to_be32(from->sb_bad_features2); | |
537 | ||
538 | if (xfs_sb_version_hascrc(from)) { | |
539 | to->sb_features_compat = cpu_to_be32(from->sb_features_compat); | |
540 | to->sb_features_ro_compat = | |
541 | cpu_to_be32(from->sb_features_ro_compat); | |
542 | to->sb_features_incompat = | |
543 | cpu_to_be32(from->sb_features_incompat); | |
544 | to->sb_features_log_incompat = | |
545 | cpu_to_be32(from->sb_features_log_incompat); | |
6bd8b7e1 | 546 | to->sb_spino_align = cpu_to_be32(from->sb_spino_align); |
19ebedcf | 547 | to->sb_lsn = cpu_to_be64(from->sb_lsn); |
9c4e12fb ES |
548 | if (xfs_sb_version_hasmetauuid(from)) |
549 | uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid); | |
5e656dbb BN |
550 | } |
551 | } | |
552 | ||
5565d79a | 553 | static int |
a2ceac1f | 554 | xfs_sb_verify( |
f7b80291 | 555 | struct xfs_buf *bp, |
5629f836 | 556 | bool check_version) |
a2ceac1f DC |
557 | { |
558 | struct xfs_mount *mp = bp->b_target->bt_mount; | |
559 | struct xfs_sb sb; | |
a2ceac1f | 560 | |
5a35bf2c DC |
561 | /* |
562 | * Use call variant which doesn't convert quota flags from disk | |
563 | * format, because xfs_mount_validate_sb checks the on-disk flags. | |
564 | */ | |
565 | __xfs_sb_from_disk(&sb, XFS_BUF_TO_SBP(bp), false); | |
a2ceac1f DC |
566 | |
567 | /* | |
568 | * Only check the in progress field for the primary superblock as | |
569 | * mkfs.xfs doesn't clear it from secondary superblocks. | |
570 | */ | |
5629f836 DC |
571 | return xfs_mount_validate_sb(mp, &sb, bp->b_bn == XFS_SB_DADDR, |
572 | check_version); | |
a2ceac1f DC |
573 | } |
574 | ||
5565d79a DC |
575 | /* |
576 | * If the superblock has the CRC feature bit set or the CRC field is non-null, | |
577 | * check that the CRC is valid. We check the CRC field is non-null because a | |
578 | * single bit error could clear the feature bit and unused parts of the | |
579 | * superblock are supposed to be zero. Hence a non-null crc field indicates that | |
580 | * we've potentially lost a feature bit and we should check it anyway. | |
46ea3a62 DC |
581 | * |
582 | * However, past bugs (i.e. in growfs) left non-zeroed regions beyond the | |
583 | * last field in V4 secondary superblocks. So for secondary superblocks, | |
584 | * we are more forgiving, and ignore CRC failures if the primary doesn't | |
585 | * indicate that the fs version is V5. | |
5565d79a | 586 | */ |
a2ceac1f DC |
587 | static void |
588 | xfs_sb_read_verify( | |
589 | struct xfs_buf *bp) | |
590 | { | |
5565d79a DC |
591 | struct xfs_mount *mp = bp->b_target->bt_mount; |
592 | struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp); | |
593 | int error; | |
594 | ||
595 | /* | |
596 | * open code the version check to avoid needing to convert the entire | |
597 | * superblock from disk order just to check the version number | |
598 | */ | |
599 | if (dsb->sb_magicnum == cpu_to_be32(XFS_SB_MAGIC) && | |
600 | (((be16_to_cpu(dsb->sb_versionnum) & XFS_SB_VERSION_NUMBITS) == | |
601 | XFS_SB_VERSION_5) || | |
602 | dsb->sb_crc != 0)) { | |
603 | ||
d21ca64d | 604 | if (!xfs_buf_verify_cksum(bp, XFS_SB_CRC_OFF)) { |
46ea3a62 | 605 | /* Only fail bad secondaries on a known V5 filesystem */ |
f3cddd91 | 606 | if (bp->b_bn == XFS_SB_DADDR || |
46ea3a62 | 607 | xfs_sb_version_hascrc(&mp->m_sb)) { |
12b53197 | 608 | error = -EFSBADCRC; |
46ea3a62 DC |
609 | goto out_error; |
610 | } | |
5565d79a DC |
611 | } |
612 | } | |
f7b80291 | 613 | error = xfs_sb_verify(bp, true); |
5565d79a DC |
614 | |
615 | out_error: | |
616 | if (error) { | |
5565d79a | 617 | xfs_buf_ioerror(bp, error); |
12b53197 | 618 | if (error == -EFSCORRUPTED || error == -EFSBADCRC) |
45922933 | 619 | xfs_verifier_error(bp); |
5565d79a | 620 | } |
a2ceac1f DC |
621 | } |
622 | ||
623 | /* | |
624 | * We may be probed for a filesystem match, so we may not want to emit | |
625 | * messages when the superblock buffer is not actually an XFS superblock. | |
4896e6c8 | 626 | * If we find an XFS superblock, then run a normal, noisy mount because we are |
a2ceac1f DC |
627 | * really going to mount it and want to know about errors. |
628 | */ | |
629 | static void | |
630 | xfs_sb_quiet_read_verify( | |
631 | struct xfs_buf *bp) | |
632 | { | |
5565d79a | 633 | struct xfs_dsb *dsb = XFS_BUF_TO_SBP(bp); |
a2ceac1f | 634 | |
5565d79a | 635 | if (dsb->sb_magicnum == cpu_to_be32(XFS_SB_MAGIC)) { |
a2ceac1f DC |
636 | /* XFS filesystem, verify noisily! */ |
637 | xfs_sb_read_verify(bp); | |
638 | return; | |
639 | } | |
640 | /* quietly fail */ | |
12b53197 | 641 | xfs_buf_ioerror(bp, -EWRONGFS); |
a2ceac1f DC |
642 | } |
643 | ||
644 | static void | |
645 | xfs_sb_write_verify( | |
5565d79a | 646 | struct xfs_buf *bp) |
a2ceac1f | 647 | { |
5565d79a DC |
648 | struct xfs_mount *mp = bp->b_target->bt_mount; |
649 | struct xfs_buf_log_item *bip = bp->b_fspriv; | |
650 | int error; | |
651 | ||
f7b80291 | 652 | error = xfs_sb_verify(bp, false); |
5565d79a | 653 | if (error) { |
5565d79a | 654 | xfs_buf_ioerror(bp, error); |
45922933 | 655 | xfs_verifier_error(bp); |
5565d79a DC |
656 | return; |
657 | } | |
658 | ||
659 | if (!xfs_sb_version_hascrc(&mp->m_sb)) | |
660 | return; | |
661 | ||
662 | if (bip) | |
663 | XFS_BUF_TO_SBP(bp)->sb_lsn = cpu_to_be64(bip->bli_item.li_lsn); | |
664 | ||
43b5aeed | 665 | xfs_buf_update_cksum(bp, XFS_SB_CRC_OFF); |
a2ceac1f DC |
666 | } |
667 | ||
668 | const struct xfs_buf_ops xfs_sb_buf_ops = { | |
a3fac935 | 669 | .name = "xfs_sb", |
a2ceac1f DC |
670 | .verify_read = xfs_sb_read_verify, |
671 | .verify_write = xfs_sb_write_verify, | |
672 | }; | |
673 | ||
4896e6c8 | 674 | const struct xfs_buf_ops xfs_sb_quiet_buf_ops = { |
a3fac935 | 675 | .name = "xfs_sb_quiet", |
a2ceac1f DC |
676 | .verify_read = xfs_sb_quiet_read_verify, |
677 | .verify_write = xfs_sb_write_verify, | |
678 | }; | |
679 | ||
5e656dbb BN |
680 | /* |
681 | * xfs_mount_common | |
682 | * | |
683 | * Mount initialization code establishing various mount | |
684 | * fields from the superblock associated with the given | |
685 | * mount structure | |
5e656dbb BN |
686 | */ |
687 | void | |
4896e6c8 DC |
688 | xfs_sb_mount_common( |
689 | struct xfs_mount *mp, | |
690 | struct xfs_sb *sbp) | |
5e656dbb | 691 | { |
5e656dbb BN |
692 | mp->m_agfrotor = mp->m_agirotor = 0; |
693 | spin_lock_init(&mp->m_agirotor_lock); | |
694 | mp->m_maxagi = mp->m_sb.sb_agcount; | |
695 | mp->m_blkbit_log = sbp->sb_blocklog + XFS_NBBYLOG; | |
696 | mp->m_blkbb_log = sbp->sb_blocklog - BBSHIFT; | |
697 | mp->m_sectbb_log = sbp->sb_sectlog - BBSHIFT; | |
698 | mp->m_agno_log = xfs_highbit32(sbp->sb_agcount - 1) + 1; | |
699 | mp->m_agino_log = sbp->sb_inopblog + sbp->sb_agblklog; | |
5e656dbb BN |
700 | mp->m_blockmask = sbp->sb_blocksize - 1; |
701 | mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG; | |
702 | mp->m_blockwmask = mp->m_blockwsize - 1; | |
5e656dbb | 703 | |
b3563c19 BN |
704 | mp->m_alloc_mxr[0] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 1); |
705 | mp->m_alloc_mxr[1] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 0); | |
706 | mp->m_alloc_mnr[0] = mp->m_alloc_mxr[0] / 2; | |
707 | mp->m_alloc_mnr[1] = mp->m_alloc_mxr[1] / 2; | |
708 | ||
709 | mp->m_inobt_mxr[0] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 1); | |
710 | mp->m_inobt_mxr[1] = xfs_inobt_maxrecs(mp, sbp->sb_blocksize, 0); | |
711 | mp->m_inobt_mnr[0] = mp->m_inobt_mxr[0] / 2; | |
712 | mp->m_inobt_mnr[1] = mp->m_inobt_mxr[1] / 2; | |
713 | ||
714 | mp->m_bmap_dmxr[0] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 1); | |
715 | mp->m_bmap_dmxr[1] = xfs_bmbt_maxrecs(mp, sbp->sb_blocksize, 0); | |
716 | mp->m_bmap_dmnr[0] = mp->m_bmap_dmxr[0] / 2; | |
717 | mp->m_bmap_dmnr[1] = mp->m_bmap_dmxr[1] / 2; | |
5e656dbb | 718 | |
b3a96b46 DW |
719 | mp->m_rmap_mxr[0] = xfs_rmapbt_maxrecs(mp, sbp->sb_blocksize, 1); |
720 | mp->m_rmap_mxr[1] = xfs_rmapbt_maxrecs(mp, sbp->sb_blocksize, 0); | |
721 | mp->m_rmap_mnr[0] = mp->m_rmap_mxr[0] / 2; | |
722 | mp->m_rmap_mnr[1] = mp->m_rmap_mxr[1] / 2; | |
723 | ||
5e656dbb BN |
724 | mp->m_bsize = XFS_FSB_TO_BB(mp, 1); |
725 | mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK, | |
726 | sbp->sb_inopblock); | |
727 | mp->m_ialloc_blks = mp->m_ialloc_inos >> sbp->sb_inopblog; | |
62dc6cdb BF |
728 | |
729 | if (sbp->sb_spino_align) | |
730 | mp->m_ialloc_min_blks = sbp->sb_spino_align; | |
731 | else | |
732 | mp->m_ialloc_min_blks = mp->m_ialloc_blks; | |
b8a8d6e5 DW |
733 | mp->m_alloc_set_aside = xfs_alloc_set_aside(mp); |
734 | mp->m_ag_max_usable = xfs_alloc_ag_max_usable(mp); | |
5e656dbb BN |
735 | } |
736 | ||
cdded3d8 DC |
737 | /* |
738 | * xfs_initialize_perag_data | |
739 | * | |
740 | * Read in each per-ag structure so we can count up the number of | |
741 | * allocated inodes, free inodes and used filesystem blocks as this | |
742 | * information is no longer persistent in the superblock. Once we have | |
743 | * this information, write it into the in-core superblock structure. | |
744 | */ | |
5e656dbb | 745 | int |
4896e6c8 DC |
746 | xfs_initialize_perag_data( |
747 | struct xfs_mount *mp, | |
748 | xfs_agnumber_t agcount) | |
cdded3d8 DC |
749 | { |
750 | xfs_agnumber_t index; | |
751 | xfs_perag_t *pag; | |
752 | xfs_sb_t *sbp = &mp->m_sb; | |
5e656dbb BN |
753 | uint64_t ifree = 0; |
754 | uint64_t ialloc = 0; | |
755 | uint64_t bfree = 0; | |
756 | uint64_t bfreelst = 0; | |
757 | uint64_t btree = 0; | |
cdded3d8 | 758 | int error; |
cdded3d8 DC |
759 | |
760 | for (index = 0; index < agcount; index++) { | |
761 | /* | |
762 | * read the agf, then the agi. This gets us | |
56b2de80 | 763 | * all the information we need and populates the |
cdded3d8 DC |
764 | * per-ag structures for us. |
765 | */ | |
766 | error = xfs_alloc_pagf_init(mp, NULL, index, 0); | |
767 | if (error) | |
768 | return error; | |
769 | ||
770 | error = xfs_ialloc_pagi_init(mp, NULL, index); | |
771 | if (error) | |
772 | return error; | |
56b2de80 | 773 | pag = xfs_perag_get(mp, index); |
cdded3d8 DC |
774 | ifree += pag->pagi_freecount; |
775 | ialloc += pag->pagi_count; | |
776 | bfree += pag->pagf_freeblks; | |
777 | bfreelst += pag->pagf_flcount; | |
778 | btree += pag->pagf_btreeblks; | |
56b2de80 | 779 | xfs_perag_put(pag); |
cdded3d8 | 780 | } |
19ebedcf DC |
781 | |
782 | /* Overwrite incore superblock counters with just-read data */ | |
5e656dbb | 783 | spin_lock(&mp->m_sb_lock); |
cdded3d8 DC |
784 | sbp->sb_ifree = ifree; |
785 | sbp->sb_icount = ialloc; | |
786 | sbp->sb_fdblocks = bfree + bfreelst + btree; | |
5e656dbb BN |
787 | spin_unlock(&mp->m_sb_lock); |
788 | ||
19ebedcf | 789 | xfs_reinit_percpu_counters(mp); |
5e656dbb | 790 | |
cdded3d8 DC |
791 | return 0; |
792 | } | |
5e656dbb BN |
793 | |
794 | /* | |
19ebedcf DC |
795 | * xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock |
796 | * into the superblock buffer to be logged. It does not provide the higher | |
797 | * level of locking that is needed to protect the in-core superblock from | |
798 | * concurrent access. | |
5e656dbb BN |
799 | */ |
800 | void | |
19ebedcf DC |
801 | xfs_log_sb( |
802 | struct xfs_trans *tp) | |
5e656dbb | 803 | { |
19ebedcf DC |
804 | struct xfs_mount *mp = tp->t_mountp; |
805 | struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0); | |
5e656dbb | 806 | |
19ebedcf DC |
807 | mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount); |
808 | mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree); | |
809 | mp->m_sb.sb_fdblocks = percpu_counter_sum(&mp->m_fdblocks); | |
4896e6c8 | 810 | |
19ebedcf DC |
811 | xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); |
812 | xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); | |
813 | xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); | |
814 | } | |
5e656dbb | 815 | |
19ebedcf DC |
816 | /* |
817 | * xfs_sync_sb | |
818 | * | |
819 | * Sync the superblock to disk. | |
820 | * | |
821 | * Note that the caller is responsible for checking the frozen state of the | |
822 | * filesystem. This procedure uses the non-blocking transaction allocator and | |
823 | * thus will allow modifications to a frozen fs. This is required because this | |
824 | * code can be called during the process of freezing where use of the high-level | |
825 | * allocator would deadlock. | |
826 | */ | |
827 | int | |
828 | xfs_sync_sb( | |
829 | struct xfs_mount *mp, | |
830 | bool wait) | |
831 | { | |
832 | struct xfs_trans *tp; | |
833 | int error; | |
5e656dbb | 834 | |
9074815c CH |
835 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_sb, 0, 0, |
836 | XFS_TRANS_NO_WRITECOUNT, &tp); | |
837 | if (error) | |
19ebedcf | 838 | return error; |
5e656dbb | 839 | |
19ebedcf DC |
840 | xfs_log_sb(tp); |
841 | if (wait) | |
842 | xfs_trans_set_sync(tp); | |
de5a3f46 | 843 | return xfs_trans_commit(tp); |
5e656dbb | 844 | } |