Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
3e57ecf6 | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 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. | |
1da177e4 | 13 | * |
7b718769 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 | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
1da177e4 | 19 | #include "xfs_fs.h" |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
25 | #include "xfs_ag.h" | |
1da177e4 LT |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_alloc.h" | |
28 | #include "xfs_dmapi.h" | |
29 | #include "xfs_quota.h" | |
30 | #include "xfs_mount.h" | |
1da177e4 | 31 | #include "xfs_bmap_btree.h" |
a844f451 | 32 | #include "xfs_alloc_btree.h" |
1da177e4 | 33 | #include "xfs_ialloc_btree.h" |
1da177e4 | 34 | #include "xfs_dir2_sf.h" |
a844f451 | 35 | #include "xfs_attr_sf.h" |
1da177e4 LT |
36 | #include "xfs_dinode.h" |
37 | #include "xfs_inode.h" | |
a844f451 NS |
38 | #include "xfs_ialloc.h" |
39 | #include "xfs_btree.h" | |
1da177e4 | 40 | #include "xfs_bmap.h" |
1da177e4 LT |
41 | #include "xfs_rtalloc.h" |
42 | #include "xfs_error.h" | |
43 | #include "xfs_itable.h" | |
44 | #include "xfs_rw.h" | |
1da177e4 LT |
45 | #include "xfs_attr.h" |
46 | #include "xfs_buf_item.h" | |
47 | #include "xfs_trans_space.h" | |
48 | #include "xfs_utils.h" | |
49 | #include "xfs_iomap.h" | |
50 | ||
51 | #if defined(XFS_RW_TRACE) | |
52 | void | |
53 | xfs_iomap_enter_trace( | |
54 | int tag, | |
541d7d3c | 55 | xfs_inode_t *ip, |
1da177e4 LT |
56 | xfs_off_t offset, |
57 | ssize_t count) | |
58 | { | |
1da177e4 LT |
59 | if (!ip->i_rwtrace) |
60 | return; | |
61 | ||
62 | ktrace_enter(ip->i_rwtrace, | |
63 | (void *)((unsigned long)tag), | |
64 | (void *)ip, | |
65 | (void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)), | |
66 | (void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)), | |
67 | (void *)((unsigned long)((offset >> 32) & 0xffffffff)), | |
68 | (void *)((unsigned long)(offset & 0xffffffff)), | |
69 | (void *)((unsigned long)count), | |
613d7043 CH |
70 | (void *)((unsigned long)((ip->i_new_size >> 32) & 0xffffffff)), |
71 | (void *)((unsigned long)(ip->i_new_size & 0xffffffff)), | |
f1fdc848 | 72 | (void *)((unsigned long)current_pid()), |
1da177e4 LT |
73 | (void *)NULL, |
74 | (void *)NULL, | |
75 | (void *)NULL, | |
76 | (void *)NULL, | |
77 | (void *)NULL, | |
78 | (void *)NULL); | |
79 | } | |
80 | ||
81 | void | |
82 | xfs_iomap_map_trace( | |
83 | int tag, | |
541d7d3c | 84 | xfs_inode_t *ip, |
1da177e4 LT |
85 | xfs_off_t offset, |
86 | ssize_t count, | |
87 | xfs_iomap_t *iomapp, | |
88 | xfs_bmbt_irec_t *imapp, | |
89 | int flags) | |
90 | { | |
1da177e4 LT |
91 | if (!ip->i_rwtrace) |
92 | return; | |
93 | ||
94 | ktrace_enter(ip->i_rwtrace, | |
95 | (void *)((unsigned long)tag), | |
96 | (void *)ip, | |
97 | (void *)((unsigned long)((ip->i_d.di_size >> 32) & 0xffffffff)), | |
98 | (void *)((unsigned long)(ip->i_d.di_size & 0xffffffff)), | |
99 | (void *)((unsigned long)((offset >> 32) & 0xffffffff)), | |
100 | (void *)((unsigned long)(offset & 0xffffffff)), | |
101 | (void *)((unsigned long)count), | |
102 | (void *)((unsigned long)flags), | |
103 | (void *)((unsigned long)((iomapp->iomap_offset >> 32) & 0xffffffff)), | |
104 | (void *)((unsigned long)(iomapp->iomap_offset & 0xffffffff)), | |
105 | (void *)((unsigned long)(iomapp->iomap_delta)), | |
106 | (void *)((unsigned long)(iomapp->iomap_bsize)), | |
107 | (void *)((unsigned long)(iomapp->iomap_bn)), | |
108 | (void *)(__psint_t)(imapp->br_startoff), | |
109 | (void *)((unsigned long)(imapp->br_blockcount)), | |
110 | (void *)(__psint_t)(imapp->br_startblock)); | |
111 | } | |
112 | #else | |
113 | #define xfs_iomap_enter_trace(tag, io, offset, count) | |
114 | #define xfs_iomap_map_trace(tag, io, offset, count, iomapp, imapp, flags) | |
115 | #endif | |
116 | ||
117 | #define XFS_WRITEIO_ALIGN(mp,off) (((off) >> mp->m_writeio_log) \ | |
118 | << mp->m_writeio_log) | |
119 | #define XFS_STRAT_WRITE_IMAPS 2 | |
120 | #define XFS_WRITE_IMAPS XFS_BMAP_MAX_NMAP | |
121 | ||
122 | STATIC int | |
123 | xfs_imap_to_bmap( | |
541d7d3c | 124 | xfs_inode_t *ip, |
1da177e4 LT |
125 | xfs_off_t offset, |
126 | xfs_bmbt_irec_t *imap, | |
127 | xfs_iomap_t *iomapp, | |
128 | int imaps, /* Number of imap entries */ | |
129 | int iomaps, /* Number of iomap entries */ | |
130 | int flags) | |
131 | { | |
541d7d3c | 132 | xfs_mount_t *mp = ip->i_mount; |
1da177e4 LT |
133 | int pbm; |
134 | xfs_fsblock_t start_block; | |
135 | ||
1da177e4 LT |
136 | |
137 | for (pbm = 0; imaps && pbm < iomaps; imaps--, iomapp++, imap++, pbm++) { | |
138 | iomapp->iomap_offset = XFS_FSB_TO_B(mp, imap->br_startoff); | |
139 | iomapp->iomap_delta = offset - iomapp->iomap_offset; | |
140 | iomapp->iomap_bsize = XFS_FSB_TO_B(mp, imap->br_blockcount); | |
141 | iomapp->iomap_flags = flags; | |
142 | ||
71ddabb9 | 143 | if (XFS_IS_REALTIME_INODE(ip)) { |
1da177e4 LT |
144 | iomapp->iomap_flags |= IOMAP_REALTIME; |
145 | iomapp->iomap_target = mp->m_rtdev_targp; | |
146 | } else { | |
147 | iomapp->iomap_target = mp->m_ddev_targp; | |
148 | } | |
149 | start_block = imap->br_startblock; | |
150 | if (start_block == HOLESTARTBLOCK) { | |
151 | iomapp->iomap_bn = IOMAP_DADDR_NULL; | |
152 | iomapp->iomap_flags |= IOMAP_HOLE; | |
153 | } else if (start_block == DELAYSTARTBLOCK) { | |
154 | iomapp->iomap_bn = IOMAP_DADDR_NULL; | |
155 | iomapp->iomap_flags |= IOMAP_DELAY; | |
156 | } else { | |
9d87c319 | 157 | iomapp->iomap_bn = xfs_fsb_to_db(ip, start_block); |
1da177e4 LT |
158 | if (ISUNWRITTEN(imap)) |
159 | iomapp->iomap_flags |= IOMAP_UNWRITTEN; | |
160 | } | |
161 | ||
1da177e4 LT |
162 | offset += iomapp->iomap_bsize - iomapp->iomap_delta; |
163 | } | |
164 | return pbm; /* Return the number filled */ | |
165 | } | |
166 | ||
167 | int | |
168 | xfs_iomap( | |
541d7d3c | 169 | xfs_inode_t *ip, |
1da177e4 LT |
170 | xfs_off_t offset, |
171 | ssize_t count, | |
172 | int flags, | |
173 | xfs_iomap_t *iomapp, | |
174 | int *niomaps) | |
175 | { | |
541d7d3c | 176 | xfs_mount_t *mp = ip->i_mount; |
1da177e4 LT |
177 | xfs_fileoff_t offset_fsb, end_fsb; |
178 | int error = 0; | |
179 | int lockmode = 0; | |
180 | xfs_bmbt_irec_t imap; | |
181 | int nimaps = 1; | |
182 | int bmapi_flags = 0; | |
183 | int iomap_flags = 0; | |
184 | ||
541d7d3c | 185 | ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG); |
541d7d3c | 186 | |
1da177e4 LT |
187 | if (XFS_FORCED_SHUTDOWN(mp)) |
188 | return XFS_ERROR(EIO); | |
189 | ||
7642861b | 190 | switch (flags & (BMAPI_READ | BMAPI_WRITE | BMAPI_ALLOCATE)) { |
1da177e4 | 191 | case BMAPI_READ: |
541d7d3c LM |
192 | xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, ip, offset, count); |
193 | lockmode = xfs_ilock_map_shared(ip); | |
1da177e4 | 194 | bmapi_flags = XFS_BMAPI_ENTIRE; |
1da177e4 LT |
195 | break; |
196 | case BMAPI_WRITE: | |
541d7d3c | 197 | xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, ip, offset, count); |
579aa9ca | 198 | lockmode = XFS_ILOCK_EXCL; |
c31e8878 NS |
199 | if (flags & BMAPI_IGNSTATE) |
200 | bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE; | |
541d7d3c | 201 | xfs_ilock(ip, lockmode); |
1da177e4 LT |
202 | break; |
203 | case BMAPI_ALLOCATE: | |
541d7d3c | 204 | xfs_iomap_enter_trace(XFS_IOMAP_ALLOC_ENTER, ip, offset, count); |
579aa9ca | 205 | lockmode = XFS_ILOCK_SHARED; |
1da177e4 | 206 | bmapi_flags = XFS_BMAPI_ENTIRE; |
541d7d3c | 207 | |
1da177e4 LT |
208 | /* Attempt non-blocking lock */ |
209 | if (flags & BMAPI_TRYLOCK) { | |
541d7d3c | 210 | if (!xfs_ilock_nowait(ip, lockmode)) |
1da177e4 LT |
211 | return XFS_ERROR(EAGAIN); |
212 | } else { | |
541d7d3c | 213 | xfs_ilock(ip, lockmode); |
1da177e4 LT |
214 | } |
215 | break; | |
1da177e4 LT |
216 | default: |
217 | BUG(); | |
218 | } | |
219 | ||
220 | ASSERT(offset <= mp->m_maxioffset); | |
221 | if ((xfs_fsize_t)offset + count > mp->m_maxioffset) | |
222 | count = mp->m_maxioffset - offset; | |
223 | end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count); | |
224 | offset_fsb = XFS_B_TO_FSBT(mp, offset); | |
225 | ||
541d7d3c | 226 | error = xfs_bmapi(NULL, ip, offset_fsb, |
1da177e4 LT |
227 | (xfs_filblks_t)(end_fsb - offset_fsb), |
228 | bmapi_flags, NULL, 0, &imap, | |
3e57ecf6 | 229 | &nimaps, NULL, NULL); |
1da177e4 LT |
230 | |
231 | if (error) | |
232 | goto out; | |
233 | ||
7642861b | 234 | switch (flags & (BMAPI_WRITE|BMAPI_ALLOCATE)) { |
1da177e4 LT |
235 | case BMAPI_WRITE: |
236 | /* If we found an extent, return it */ | |
68d1498c | 237 | if (nimaps && |
dd9f438e | 238 | (imap.br_startblock != HOLESTARTBLOCK) && |
68d1498c | 239 | (imap.br_startblock != DELAYSTARTBLOCK)) { |
541d7d3c | 240 | xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, ip, |
1da177e4 LT |
241 | offset, count, iomapp, &imap, flags); |
242 | break; | |
243 | } | |
244 | ||
245 | if (flags & (BMAPI_DIRECT|BMAPI_MMAP)) { | |
541d7d3c LM |
246 | error = xfs_iomap_write_direct(ip, offset, count, flags, |
247 | &imap, &nimaps, nimaps); | |
1da177e4 | 248 | } else { |
541d7d3c LM |
249 | error = xfs_iomap_write_delay(ip, offset, count, flags, |
250 | &imap, &nimaps); | |
1da177e4 LT |
251 | } |
252 | if (!error) { | |
541d7d3c | 253 | xfs_iomap_map_trace(XFS_IOMAP_ALLOC_MAP, ip, |
1da177e4 LT |
254 | offset, count, iomapp, &imap, flags); |
255 | } | |
256 | iomap_flags = IOMAP_NEW; | |
257 | break; | |
258 | case BMAPI_ALLOCATE: | |
259 | /* If we found an extent, return it */ | |
541d7d3c | 260 | xfs_iunlock(ip, lockmode); |
1da177e4 LT |
261 | lockmode = 0; |
262 | ||
9d87c319 | 263 | if (nimaps && !isnullstartblock(imap.br_startblock)) { |
541d7d3c | 264 | xfs_iomap_map_trace(XFS_IOMAP_WRITE_MAP, ip, |
1da177e4 LT |
265 | offset, count, iomapp, &imap, flags); |
266 | break; | |
267 | } | |
268 | ||
541d7d3c | 269 | error = xfs_iomap_write_allocate(ip, offset, count, |
24e17b5f | 270 | &imap, &nimaps); |
1da177e4 | 271 | break; |
1da177e4 LT |
272 | } |
273 | ||
274 | if (nimaps) { | |
541d7d3c | 275 | *niomaps = xfs_imap_to_bmap(ip, offset, &imap, |
1da177e4 LT |
276 | iomapp, nimaps, *niomaps, iomap_flags); |
277 | } else if (niomaps) { | |
278 | *niomaps = 0; | |
279 | } | |
280 | ||
281 | out: | |
282 | if (lockmode) | |
541d7d3c | 283 | xfs_iunlock(ip, lockmode); |
1da177e4 LT |
284 | return XFS_ERROR(error); |
285 | } | |
286 | ||
541d7d3c | 287 | |
dd9f438e NS |
288 | STATIC int |
289 | xfs_iomap_eof_align_last_fsb( | |
290 | xfs_mount_t *mp, | |
541d7d3c | 291 | xfs_inode_t *ip, |
dd9f438e NS |
292 | xfs_extlen_t extsize, |
293 | xfs_fileoff_t *last_fsb) | |
294 | { | |
295 | xfs_fileoff_t new_last_fsb = 0; | |
296 | xfs_extlen_t align; | |
297 | int eof, error; | |
298 | ||
71ddabb9 | 299 | if (XFS_IS_REALTIME_INODE(ip)) |
dd9f438e NS |
300 | ; |
301 | /* | |
302 | * If mounted with the "-o swalloc" option, roundup the allocation | |
303 | * request to a stripe width boundary if the file size is >= | |
304 | * stripe width and we are allocating past the allocation eof. | |
305 | */ | |
306 | else if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC) && | |
9f6c92b9 | 307 | (ip->i_size >= XFS_FSB_TO_B(mp, mp->m_swidth))) |
dd9f438e NS |
308 | new_last_fsb = roundup_64(*last_fsb, mp->m_swidth); |
309 | /* | |
310 | * Roundup the allocation request to a stripe unit (m_dalign) boundary | |
311 | * if the file size is >= stripe unit size, and we are allocating past | |
312 | * the allocation eof. | |
313 | */ | |
9f6c92b9 | 314 | else if (mp->m_dalign && (ip->i_size >= XFS_FSB_TO_B(mp, mp->m_dalign))) |
dd9f438e NS |
315 | new_last_fsb = roundup_64(*last_fsb, mp->m_dalign); |
316 | ||
317 | /* | |
318 | * Always round up the allocation request to an extent boundary | |
319 | * (when file on a real-time subvolume or has di_extsize hint). | |
320 | */ | |
321 | if (extsize) { | |
322 | if (new_last_fsb) | |
323 | align = roundup_64(new_last_fsb, extsize); | |
324 | else | |
325 | align = extsize; | |
326 | new_last_fsb = roundup_64(*last_fsb, align); | |
327 | } | |
328 | ||
329 | if (new_last_fsb) { | |
541d7d3c | 330 | error = xfs_bmap_eof(ip, new_last_fsb, XFS_DATA_FORK, &eof); |
dd9f438e NS |
331 | if (error) |
332 | return error; | |
333 | if (eof) | |
334 | *last_fsb = new_last_fsb; | |
335 | } | |
336 | return 0; | |
337 | } | |
338 | ||
572d95f4 NS |
339 | STATIC int |
340 | xfs_cmn_err_fsblock_zero( | |
341 | xfs_inode_t *ip, | |
342 | xfs_bmbt_irec_t *imap) | |
343 | { | |
344 | xfs_cmn_err(XFS_PTAG_FSBLOCK_ZERO, CE_ALERT, ip->i_mount, | |
345 | "Access to block zero in inode %llu " | |
346 | "start_block: %llx start_off: %llx " | |
347 | "blkcnt: %llx extent-state: %x\n", | |
348 | (unsigned long long)ip->i_ino, | |
349 | (unsigned long long)imap->br_startblock, | |
350 | (unsigned long long)imap->br_startoff, | |
351 | (unsigned long long)imap->br_blockcount, | |
352 | imap->br_state); | |
353 | return EFSCORRUPTED; | |
354 | } | |
355 | ||
1da177e4 LT |
356 | int |
357 | xfs_iomap_write_direct( | |
358 | xfs_inode_t *ip, | |
f403b7f4 | 359 | xfs_off_t offset, |
1da177e4 LT |
360 | size_t count, |
361 | int flags, | |
362 | xfs_bmbt_irec_t *ret_imap, | |
363 | int *nmaps, | |
364 | int found) | |
365 | { | |
366 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
367 | xfs_fileoff_t offset_fsb; |
368 | xfs_fileoff_t last_fsb; | |
dd9f438e | 369 | xfs_filblks_t count_fsb, resaligned; |
1da177e4 | 370 | xfs_fsblock_t firstfsb; |
dd9f438e | 371 | xfs_extlen_t extsz, temp; |
0116d935 | 372 | int nimaps; |
1da177e4 | 373 | int bmapi_flag; |
06d10dd9 | 374 | int quota_flag; |
1da177e4 LT |
375 | int rt; |
376 | xfs_trans_t *tp; | |
0116d935 | 377 | xfs_bmbt_irec_t imap; |
1da177e4 | 378 | xfs_bmap_free_t free_list; |
dd9f438e | 379 | uint qblocks, resblks, resrtextents; |
1da177e4 | 380 | int committed; |
dd9f438e | 381 | int error; |
1da177e4 LT |
382 | |
383 | /* | |
384 | * Make sure that the dquots are there. This doesn't hold | |
385 | * the ilock across a disk read. | |
386 | */ | |
7d095257 | 387 | error = xfs_qm_dqattach_locked(ip, 0); |
1da177e4 LT |
388 | if (error) |
389 | return XFS_ERROR(error); | |
390 | ||
dd9f438e | 391 | rt = XFS_IS_REALTIME_INODE(ip); |
957d0ebe | 392 | extsz = xfs_get_extsz_hint(ip); |
1da177e4 | 393 | |
957d0ebe DC |
394 | offset_fsb = XFS_B_TO_FSBT(mp, offset); |
395 | last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); | |
9f6c92b9 LM |
396 | if ((offset + count) > ip->i_size) { |
397 | error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb); | |
dd9f438e NS |
398 | if (error) |
399 | goto error_out; | |
1da177e4 | 400 | } else { |
dd9f438e NS |
401 | if (found && (ret_imap->br_startblock == HOLESTARTBLOCK)) |
402 | last_fsb = MIN(last_fsb, (xfs_fileoff_t) | |
403 | ret_imap->br_blockcount + | |
404 | ret_imap->br_startoff); | |
1da177e4 | 405 | } |
dd9f438e NS |
406 | count_fsb = last_fsb - offset_fsb; |
407 | ASSERT(count_fsb > 0); | |
408 | ||
409 | resaligned = count_fsb; | |
410 | if (unlikely(extsz)) { | |
411 | if ((temp = do_mod(offset_fsb, extsz))) | |
412 | resaligned += temp; | |
413 | if ((temp = do_mod(resaligned, extsz))) | |
414 | resaligned += extsz - temp; | |
415 | } | |
416 | ||
417 | if (unlikely(rt)) { | |
418 | resrtextents = qblocks = resaligned; | |
419 | resrtextents /= mp->m_sb.sb_rextsize; | |
84e1e99f DC |
420 | resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0); |
421 | quota_flag = XFS_QMOPT_RES_RTBLKS; | |
422 | } else { | |
423 | resrtextents = 0; | |
dd9f438e | 424 | resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, resaligned); |
84e1e99f DC |
425 | quota_flag = XFS_QMOPT_RES_REGBLKS; |
426 | } | |
1da177e4 LT |
427 | |
428 | /* | |
06d10dd9 | 429 | * Allocate and setup the transaction |
1da177e4 LT |
430 | */ |
431 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
432 | tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); | |
1da177e4 | 433 | error = xfs_trans_reserve(tp, resblks, |
d52b44d0 | 434 | XFS_WRITE_LOG_RES(mp), resrtextents, |
1da177e4 LT |
435 | XFS_TRANS_PERM_LOG_RES, |
436 | XFS_WRITE_LOG_COUNT); | |
1da177e4 | 437 | /* |
06d10dd9 | 438 | * Check for running out of space, note: need lock to return |
1da177e4 LT |
439 | */ |
440 | if (error) | |
1da177e4 | 441 | xfs_trans_cancel(tp, 0); |
1da177e4 | 442 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
1da177e4 | 443 | if (error) |
06d10dd9 | 444 | goto error_out; |
1da177e4 | 445 | |
7d095257 | 446 | error = xfs_trans_reserve_quota_nblks(tp, ip, qblocks, 0, quota_flag); |
dd9f438e | 447 | if (error) |
1da177e4 | 448 | goto error1; |
1da177e4 | 449 | |
1da177e4 LT |
450 | xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); |
451 | xfs_trans_ihold(tp, ip); | |
452 | ||
dd9f438e | 453 | bmapi_flag = XFS_BMAPI_WRITE; |
ba87ea69 | 454 | if ((flags & BMAPI_DIRECT) && (offset < ip->i_size || extsz)) |
1da177e4 LT |
455 | bmapi_flag |= XFS_BMAPI_PREALLOC; |
456 | ||
457 | /* | |
dd9f438e | 458 | * Issue the xfs_bmapi() call to allocate the blocks |
1da177e4 | 459 | */ |
9d87c319 | 460 | xfs_bmap_init(&free_list, &firstfsb); |
06d10dd9 | 461 | nimaps = 1; |
541d7d3c | 462 | error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, bmapi_flag, |
3e57ecf6 | 463 | &firstfsb, 0, &imap, &nimaps, &free_list, NULL); |
06d10dd9 | 464 | if (error) |
1da177e4 | 465 | goto error0; |
1da177e4 LT |
466 | |
467 | /* | |
06d10dd9 | 468 | * Complete the transaction |
1da177e4 | 469 | */ |
f7c99b6f | 470 | error = xfs_bmap_finish(&tp, &free_list, &committed); |
06d10dd9 | 471 | if (error) |
1da177e4 | 472 | goto error0; |
1c72bf90 | 473 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); |
06d10dd9 | 474 | if (error) |
1da177e4 | 475 | goto error_out; |
1da177e4 | 476 | |
06d10dd9 NS |
477 | /* |
478 | * Copy any maps to caller's array and return any error. | |
479 | */ | |
1da177e4 | 480 | if (nimaps == 0) { |
572d95f4 NS |
481 | error = ENOSPC; |
482 | goto error_out; | |
483 | } | |
484 | ||
86c4d623 | 485 | if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) { |
572d95f4 | 486 | error = xfs_cmn_err_fsblock_zero(ip, &imap); |
1da177e4 LT |
487 | goto error_out; |
488 | } | |
489 | ||
0116d935 | 490 | *ret_imap = imap; |
1da177e4 | 491 | *nmaps = 1; |
1da177e4 LT |
492 | return 0; |
493 | ||
06d10dd9 | 494 | error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */ |
1da177e4 | 495 | xfs_bmap_cancel(&free_list); |
7d095257 | 496 | xfs_trans_unreserve_quota_nblks(tp, ip, qblocks, 0, quota_flag); |
1da177e4 | 497 | |
06d10dd9 | 498 | error1: /* Just cancel transaction */ |
1da177e4 LT |
499 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); |
500 | *nmaps = 0; /* nothing set-up here */ | |
501 | ||
502 | error_out: | |
503 | return XFS_ERROR(error); | |
504 | } | |
505 | ||
dd9f438e | 506 | /* |
8de2bf93 DC |
507 | * If the caller is doing a write at the end of the file, then extend the |
508 | * allocation out to the file system's write iosize. We clean up any extra | |
509 | * space left over when the file is closed in xfs_inactive(). | |
dd9f438e NS |
510 | */ |
511 | STATIC int | |
512 | xfs_iomap_eof_want_preallocate( | |
513 | xfs_mount_t *mp, | |
541d7d3c | 514 | xfs_inode_t *ip, |
dd9f438e NS |
515 | xfs_off_t offset, |
516 | size_t count, | |
517 | int ioflag, | |
518 | xfs_bmbt_irec_t *imap, | |
519 | int nimaps, | |
520 | int *prealloc) | |
521 | { | |
522 | xfs_fileoff_t start_fsb; | |
523 | xfs_filblks_t count_fsb; | |
524 | xfs_fsblock_t firstblock; | |
525 | int n, error, imaps; | |
526 | ||
527 | *prealloc = 0; | |
8de2bf93 | 528 | if ((offset + count) <= ip->i_size) |
dd9f438e NS |
529 | return 0; |
530 | ||
531 | /* | |
532 | * If there are any real blocks past eof, then don't | |
533 | * do any speculative allocation. | |
534 | */ | |
535 | start_fsb = XFS_B_TO_FSBT(mp, ((xfs_ufsize_t)(offset + count - 1))); | |
536 | count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_MAXIOFFSET(mp)); | |
537 | while (count_fsb > 0) { | |
538 | imaps = nimaps; | |
3ddb8fa9 | 539 | firstblock = NULLFSBLOCK; |
541d7d3c | 540 | error = xfs_bmapi(NULL, ip, start_fsb, count_fsb, 0, |
3e57ecf6 | 541 | &firstblock, 0, imap, &imaps, NULL, NULL); |
dd9f438e NS |
542 | if (error) |
543 | return error; | |
544 | for (n = 0; n < imaps; n++) { | |
545 | if ((imap[n].br_startblock != HOLESTARTBLOCK) && | |
546 | (imap[n].br_startblock != DELAYSTARTBLOCK)) | |
547 | return 0; | |
548 | start_fsb += imap[n].br_blockcount; | |
549 | count_fsb -= imap[n].br_blockcount; | |
550 | } | |
551 | } | |
552 | *prealloc = 1; | |
553 | return 0; | |
554 | } | |
555 | ||
1da177e4 LT |
556 | int |
557 | xfs_iomap_write_delay( | |
558 | xfs_inode_t *ip, | |
f403b7f4 | 559 | xfs_off_t offset, |
1da177e4 LT |
560 | size_t count, |
561 | int ioflag, | |
562 | xfs_bmbt_irec_t *ret_imap, | |
563 | int *nmaps) | |
564 | { | |
565 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
566 | xfs_fileoff_t offset_fsb; |
567 | xfs_fileoff_t last_fsb; | |
dd9f438e NS |
568 | xfs_off_t aligned_offset; |
569 | xfs_fileoff_t ioalign; | |
1da177e4 | 570 | xfs_fsblock_t firstblock; |
dd9f438e | 571 | xfs_extlen_t extsz; |
1da177e4 | 572 | int nimaps; |
1da177e4 | 573 | xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS]; |
8de2bf93 | 574 | int prealloc, flushed = 0; |
dd9f438e | 575 | int error; |
1da177e4 | 576 | |
579aa9ca | 577 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
578 | |
579 | /* | |
580 | * Make sure that the dquots are there. This doesn't hold | |
581 | * the ilock across a disk read. | |
582 | */ | |
7d095257 | 583 | error = xfs_qm_dqattach_locked(ip, 0); |
1da177e4 LT |
584 | if (error) |
585 | return XFS_ERROR(error); | |
586 | ||
957d0ebe | 587 | extsz = xfs_get_extsz_hint(ip); |
dd9f438e NS |
588 | offset_fsb = XFS_B_TO_FSBT(mp, offset); |
589 | ||
9f6c92b9 | 590 | error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count, |
dd9f438e NS |
591 | ioflag, imap, XFS_WRITE_IMAPS, &prealloc); |
592 | if (error) | |
593 | return error; | |
1da177e4 | 594 | |
8de2bf93 | 595 | retry: |
dd9f438e | 596 | if (prealloc) { |
1da177e4 LT |
597 | aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1)); |
598 | ioalign = XFS_B_TO_FSBT(mp, aligned_offset); | |
dd9f438e NS |
599 | last_fsb = ioalign + mp->m_writeio_blocks; |
600 | } else { | |
601 | last_fsb = XFS_B_TO_FSB(mp, ((xfs_ufsize_t)(offset + count))); | |
1da177e4 | 602 | } |
1da177e4 | 603 | |
dd9f438e | 604 | if (prealloc || extsz) { |
9f6c92b9 | 605 | error = xfs_iomap_eof_align_last_fsb(mp, ip, extsz, &last_fsb); |
dd9f438e | 606 | if (error) |
1da177e4 | 607 | return error; |
1da177e4 | 608 | } |
dd9f438e NS |
609 | |
610 | nimaps = XFS_WRITE_IMAPS; | |
611 | firstblock = NULLFSBLOCK; | |
541d7d3c | 612 | error = xfs_bmapi(NULL, ip, offset_fsb, |
1da177e4 LT |
613 | (xfs_filblks_t)(last_fsb - offset_fsb), |
614 | XFS_BMAPI_DELAY | XFS_BMAPI_WRITE | | |
615 | XFS_BMAPI_ENTIRE, &firstblock, 1, imap, | |
3e57ecf6 | 616 | &nimaps, NULL, NULL); |
dd9f438e | 617 | if (error && (error != ENOSPC)) |
1da177e4 | 618 | return XFS_ERROR(error); |
dd9f438e | 619 | |
1da177e4 LT |
620 | /* |
621 | * If bmapi returned us nothing, and if we didn't get back EDQUOT, | |
8de2bf93 DC |
622 | * then we must have run out of space - flush all other inodes with |
623 | * delalloc blocks and retry without EOF preallocation. | |
1da177e4 LT |
624 | */ |
625 | if (nimaps == 0) { | |
626 | xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE, | |
541d7d3c | 627 | ip, offset, count); |
8de2bf93 | 628 | if (flushed) |
1da177e4 LT |
629 | return XFS_ERROR(ENOSPC); |
630 | ||
8de2bf93 DC |
631 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
632 | xfs_flush_inodes(ip); | |
633 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
634 | ||
635 | flushed = 1; | |
1da177e4 | 636 | error = 0; |
8de2bf93 | 637 | prealloc = 0; |
1da177e4 LT |
638 | goto retry; |
639 | } | |
640 | ||
86c4d623 | 641 | if (!(imap[0].br_startblock || XFS_IS_REALTIME_INODE(ip))) |
572d95f4 | 642 | return xfs_cmn_err_fsblock_zero(ip, &imap[0]); |
dd9f438e NS |
643 | |
644 | *ret_imap = imap[0]; | |
645 | *nmaps = 1; | |
646 | ||
1da177e4 LT |
647 | return 0; |
648 | } | |
649 | ||
650 | /* | |
651 | * Pass in a delayed allocate extent, convert it to real extents; | |
652 | * return to the caller the extent we create which maps on top of | |
653 | * the originating callers request. | |
654 | * | |
655 | * Called without a lock on the inode. | |
e4143a1c DC |
656 | * |
657 | * We no longer bother to look at the incoming map - all we have to | |
658 | * guarantee is that whatever we allocate fills the required range. | |
1da177e4 LT |
659 | */ |
660 | int | |
661 | xfs_iomap_write_allocate( | |
662 | xfs_inode_t *ip, | |
f403b7f4 | 663 | xfs_off_t offset, |
24e17b5f | 664 | size_t count, |
1da177e4 LT |
665 | xfs_bmbt_irec_t *map, |
666 | int *retmap) | |
667 | { | |
668 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
669 | xfs_fileoff_t offset_fsb, last_block; |
670 | xfs_fileoff_t end_fsb, map_start_fsb; | |
671 | xfs_fsblock_t first_block; | |
672 | xfs_bmap_free_t free_list; | |
673 | xfs_filblks_t count_fsb; | |
e4143a1c | 674 | xfs_bmbt_irec_t imap; |
1da177e4 | 675 | xfs_trans_t *tp; |
e4143a1c | 676 | int nimaps, committed; |
1da177e4 LT |
677 | int error = 0; |
678 | int nres; | |
679 | ||
680 | *retmap = 0; | |
681 | ||
682 | /* | |
683 | * Make sure that the dquots are there. | |
684 | */ | |
7d095257 CH |
685 | error = xfs_qm_dqattach(ip, 0); |
686 | if (error) | |
1da177e4 LT |
687 | return XFS_ERROR(error); |
688 | ||
24e17b5f | 689 | offset_fsb = XFS_B_TO_FSBT(mp, offset); |
1da177e4 | 690 | count_fsb = map->br_blockcount; |
24e17b5f | 691 | map_start_fsb = map->br_startoff; |
1da177e4 LT |
692 | |
693 | XFS_STATS_ADD(xs_xstrat_bytes, XFS_FSB_TO_B(mp, count_fsb)); | |
694 | ||
695 | while (count_fsb != 0) { | |
696 | /* | |
697 | * Set up a transaction with which to allocate the | |
698 | * backing store for the file. Do allocations in a | |
699 | * loop until we get some space in the range we are | |
700 | * interested in. The other space that might be allocated | |
701 | * is in the delayed allocation extent on which we sit | |
702 | * but before our buffer starts. | |
703 | */ | |
704 | ||
705 | nimaps = 0; | |
706 | while (nimaps == 0) { | |
707 | tp = xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE); | |
84e1e99f | 708 | tp->t_flags |= XFS_TRANS_RESERVE; |
1da177e4 LT |
709 | nres = XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK); |
710 | error = xfs_trans_reserve(tp, nres, | |
711 | XFS_WRITE_LOG_RES(mp), | |
712 | 0, XFS_TRANS_PERM_LOG_RES, | |
713 | XFS_WRITE_LOG_COUNT); | |
1da177e4 LT |
714 | if (error) { |
715 | xfs_trans_cancel(tp, 0); | |
716 | return XFS_ERROR(error); | |
717 | } | |
718 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
719 | xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); | |
720 | xfs_trans_ihold(tp, ip); | |
721 | ||
9d87c319 | 722 | xfs_bmap_init(&free_list, &first_block); |
1da177e4 | 723 | |
1da177e4 | 724 | /* |
e4143a1c DC |
725 | * it is possible that the extents have changed since |
726 | * we did the read call as we dropped the ilock for a | |
727 | * while. We have to be careful about truncates or hole | |
728 | * punchs here - we are not allowed to allocate | |
729 | * non-delalloc blocks here. | |
730 | * | |
731 | * The only protection against truncation is the pages | |
732 | * for the range we are being asked to convert are | |
733 | * locked and hence a truncate will block on them | |
734 | * first. | |
735 | * | |
736 | * As a result, if we go beyond the range we really | |
737 | * need and hit an delalloc extent boundary followed by | |
738 | * a hole while we have excess blocks in the map, we | |
739 | * will fill the hole incorrectly and overrun the | |
740 | * transaction reservation. | |
741 | * | |
742 | * Using a single map prevents this as we are forced to | |
743 | * check each map we look for overlap with the desired | |
744 | * range and abort as soon as we find it. Also, given | |
745 | * that we only return a single map, having one beyond | |
746 | * what we can return is probably a bit silly. | |
747 | * | |
748 | * We also need to check that we don't go beyond EOF; | |
749 | * this is a truncate optimisation as a truncate sets | |
750 | * the new file size before block on the pages we | |
751 | * currently have locked under writeback. Because they | |
752 | * are about to be tossed, we don't need to write them | |
753 | * back.... | |
1da177e4 | 754 | */ |
e4143a1c | 755 | nimaps = 1; |
ba87ea69 | 756 | end_fsb = XFS_B_TO_FSB(mp, ip->i_size); |
7c9ef85c DC |
757 | error = xfs_bmap_last_offset(NULL, ip, &last_block, |
758 | XFS_DATA_FORK); | |
759 | if (error) | |
760 | goto trans_cancel; | |
761 | ||
1da177e4 LT |
762 | last_block = XFS_FILEOFF_MAX(last_block, end_fsb); |
763 | if ((map_start_fsb + count_fsb) > last_block) { | |
764 | count_fsb = last_block - map_start_fsb; | |
765 | if (count_fsb == 0) { | |
766 | error = EAGAIN; | |
767 | goto trans_cancel; | |
768 | } | |
769 | } | |
770 | ||
771 | /* Go get the actual blocks */ | |
541d7d3c | 772 | error = xfs_bmapi(tp, ip, map_start_fsb, count_fsb, |
1da177e4 | 773 | XFS_BMAPI_WRITE, &first_block, 1, |
e4143a1c | 774 | &imap, &nimaps, &free_list, NULL); |
1da177e4 LT |
775 | if (error) |
776 | goto trans_cancel; | |
777 | ||
f7c99b6f | 778 | error = xfs_bmap_finish(&tp, &free_list, &committed); |
1da177e4 LT |
779 | if (error) |
780 | goto trans_cancel; | |
781 | ||
1c72bf90 | 782 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); |
1da177e4 LT |
783 | if (error) |
784 | goto error0; | |
785 | ||
786 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
787 | } | |
788 | ||
789 | /* | |
790 | * See if we were able to allocate an extent that | |
791 | * covers at least part of the callers request | |
792 | */ | |
86c4d623 | 793 | if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) |
e4143a1c | 794 | return xfs_cmn_err_fsblock_zero(ip, &imap); |
86c4d623 | 795 | |
e4143a1c DC |
796 | if ((offset_fsb >= imap.br_startoff) && |
797 | (offset_fsb < (imap.br_startoff + | |
798 | imap.br_blockcount))) { | |
799 | *map = imap; | |
800 | *retmap = 1; | |
801 | XFS_STATS_INC(xs_xstrat_quick); | |
802 | return 0; | |
1da177e4 LT |
803 | } |
804 | ||
e4143a1c DC |
805 | /* |
806 | * So far we have not mapped the requested part of the | |
1da177e4 LT |
807 | * file, just surrounding data, try again. |
808 | */ | |
e4143a1c DC |
809 | count_fsb -= imap.br_blockcount; |
810 | map_start_fsb = imap.br_startoff + imap.br_blockcount; | |
1da177e4 LT |
811 | } |
812 | ||
813 | trans_cancel: | |
814 | xfs_bmap_cancel(&free_list); | |
815 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); | |
816 | error0: | |
817 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
818 | return XFS_ERROR(error); | |
819 | } | |
820 | ||
821 | int | |
822 | xfs_iomap_write_unwritten( | |
823 | xfs_inode_t *ip, | |
f403b7f4 | 824 | xfs_off_t offset, |
1da177e4 LT |
825 | size_t count) |
826 | { | |
827 | xfs_mount_t *mp = ip->i_mount; | |
1da177e4 LT |
828 | xfs_fileoff_t offset_fsb; |
829 | xfs_filblks_t count_fsb; | |
830 | xfs_filblks_t numblks_fsb; | |
dd9f438e NS |
831 | xfs_fsblock_t firstfsb; |
832 | int nimaps; | |
833 | xfs_trans_t *tp; | |
834 | xfs_bmbt_irec_t imap; | |
835 | xfs_bmap_free_t free_list; | |
836 | uint resblks; | |
1da177e4 LT |
837 | int committed; |
838 | int error; | |
1da177e4 | 839 | |
541d7d3c | 840 | xfs_iomap_enter_trace(XFS_IOMAP_UNWRITTEN, ip, offset, count); |
1da177e4 LT |
841 | |
842 | offset_fsb = XFS_B_TO_FSBT(mp, offset); | |
843 | count_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count); | |
844 | count_fsb = (xfs_filblks_t)(count_fsb - offset_fsb); | |
845 | ||
4ddd8bb1 LM |
846 | /* |
847 | * Reserve enough blocks in this transaction for two complete extent | |
848 | * btree splits. We may be converting the middle part of an unwritten | |
849 | * extent and in this case we will insert two new extents in the btree | |
850 | * each of which could cause a full split. | |
851 | * | |
852 | * This reservation amount will be used in the first call to | |
853 | * xfs_bmbt_split() to select an AG with enough space to satisfy the | |
854 | * rest of the operation. | |
855 | */ | |
dd9f438e | 856 | resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0) << 1; |
1da177e4 | 857 | |
dd9f438e | 858 | do { |
1da177e4 LT |
859 | /* |
860 | * set up a transaction to convert the range of extents | |
861 | * from unwritten to real. Do allocations in a loop until | |
862 | * we have covered the range passed in. | |
80641dc6 CH |
863 | * |
864 | * Note that we open code the transaction allocation here | |
865 | * to pass KM_NOFS--we can't risk to recursing back into | |
866 | * the filesystem here as we might be asked to write out | |
867 | * the same inode that we complete here and might deadlock | |
868 | * on the iolock. | |
1da177e4 | 869 | */ |
80641dc6 CH |
870 | xfs_wait_for_freeze(mp, SB_FREEZE_TRANS); |
871 | tp = _xfs_trans_alloc(mp, XFS_TRANS_STRAT_WRITE, KM_NOFS); | |
84e1e99f | 872 | tp->t_flags |= XFS_TRANS_RESERVE; |
dd9f438e | 873 | error = xfs_trans_reserve(tp, resblks, |
1da177e4 LT |
874 | XFS_WRITE_LOG_RES(mp), 0, |
875 | XFS_TRANS_PERM_LOG_RES, | |
876 | XFS_WRITE_LOG_COUNT); | |
877 | if (error) { | |
878 | xfs_trans_cancel(tp, 0); | |
572d95f4 | 879 | return XFS_ERROR(error); |
1da177e4 LT |
880 | } |
881 | ||
882 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
883 | xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); | |
884 | xfs_trans_ihold(tp, ip); | |
885 | ||
886 | /* | |
887 | * Modify the unwritten extent state of the buffer. | |
888 | */ | |
9d87c319 | 889 | xfs_bmap_init(&free_list, &firstfsb); |
1da177e4 | 890 | nimaps = 1; |
541d7d3c | 891 | error = xfs_bmapi(tp, ip, offset_fsb, count_fsb, |
dd9f438e | 892 | XFS_BMAPI_WRITE|XFS_BMAPI_CONVERT, &firstfsb, |
3e57ecf6 | 893 | 1, &imap, &nimaps, &free_list, NULL); |
1da177e4 LT |
894 | if (error) |
895 | goto error_on_bmapi_transaction; | |
896 | ||
f7c99b6f | 897 | error = xfs_bmap_finish(&(tp), &(free_list), &committed); |
1da177e4 LT |
898 | if (error) |
899 | goto error_on_bmapi_transaction; | |
900 | ||
1c72bf90 | 901 | error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); |
1da177e4 LT |
902 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
903 | if (error) | |
572d95f4 NS |
904 | return XFS_ERROR(error); |
905 | ||
86c4d623 | 906 | if (!(imap.br_startblock || XFS_IS_REALTIME_INODE(ip))) |
572d95f4 | 907 | return xfs_cmn_err_fsblock_zero(ip, &imap); |
1da177e4 LT |
908 | |
909 | if ((numblks_fsb = imap.br_blockcount) == 0) { | |
910 | /* | |
911 | * The numblks_fsb value should always get | |
912 | * smaller, otherwise the loop is stuck. | |
913 | */ | |
914 | ASSERT(imap.br_blockcount); | |
915 | break; | |
916 | } | |
917 | offset_fsb += numblks_fsb; | |
918 | count_fsb -= numblks_fsb; | |
919 | } while (count_fsb > 0); | |
920 | ||
921 | return 0; | |
922 | ||
923 | error_on_bmapi_transaction: | |
924 | xfs_bmap_cancel(&free_list); | |
925 | xfs_trans_cancel(tp, (XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT)); | |
926 | xfs_iunlock(ip, XFS_ILOCK_EXCL); | |
1da177e4 LT |
927 | return XFS_ERROR(error); |
928 | } |