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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. |
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" |
a844f451 | 19 | #include "xfs_fs.h" |
1da177e4 | 20 | #include "xfs_types.h" |
a844f451 | 21 | #include "xfs_bit.h" |
1da177e4 | 22 | #include "xfs_log.h" |
a844f451 | 23 | #include "xfs_inum.h" |
1da177e4 | 24 | #include "xfs_trans.h" |
1da177e4 | 25 | #include "xfs_sb.h" |
a844f451 | 26 | #include "xfs_ag.h" |
1da177e4 LT |
27 | #include "xfs_mount.h" |
28 | #include "xfs_trans_priv.h" | |
1da177e4 | 29 | #include "xfs_bmap_btree.h" |
1da177e4 | 30 | #include "xfs_dinode.h" |
1da177e4 | 31 | #include "xfs_inode.h" |
a844f451 | 32 | #include "xfs_inode_item.h" |
db7a19f2 | 33 | #include "xfs_error.h" |
0b1b213f | 34 | #include "xfs_trace.h" |
1da177e4 LT |
35 | |
36 | ||
37 | kmem_zone_t *xfs_ili_zone; /* inode log item zone */ | |
38 | ||
39 | /* | |
40 | * This returns the number of iovecs needed to log the given inode item. | |
41 | * | |
42 | * We need one iovec for the inode log format structure, one for the | |
43 | * inode core, and possibly one for the inode data/extents/b-tree root | |
44 | * and one for the inode attribute data/extents/b-tree root. | |
45 | */ | |
46 | STATIC uint | |
47 | xfs_inode_item_size( | |
48 | xfs_inode_log_item_t *iip) | |
49 | { | |
50 | uint nvecs; | |
51 | xfs_inode_t *ip; | |
52 | ||
53 | ip = iip->ili_inode; | |
54 | nvecs = 2; | |
55 | ||
56 | /* | |
57 | * Only log the data/extents/b-tree root if there is something | |
58 | * left to log. | |
59 | */ | |
60 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
61 | ||
62 | switch (ip->i_d.di_format) { | |
63 | case XFS_DINODE_FMT_EXTENTS: | |
64 | iip->ili_format.ilf_fields &= | |
65 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
66 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
67 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DEXT) && | |
68 | (ip->i_d.di_nextents > 0) && | |
69 | (ip->i_df.if_bytes > 0)) { | |
70 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
71 | nvecs++; | |
72 | } else { | |
73 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DEXT; | |
74 | } | |
75 | break; | |
76 | ||
77 | case XFS_DINODE_FMT_BTREE: | |
78 | ASSERT(ip->i_df.if_ext_max == | |
79 | XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t)); | |
80 | iip->ili_format.ilf_fields &= | |
81 | ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
82 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
83 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) && | |
84 | (ip->i_df.if_broot_bytes > 0)) { | |
85 | ASSERT(ip->i_df.if_broot != NULL); | |
86 | nvecs++; | |
87 | } else { | |
88 | ASSERT(!(iip->ili_format.ilf_fields & | |
89 | XFS_ILOG_DBROOT)); | |
90 | #ifdef XFS_TRANS_DEBUG | |
91 | if (iip->ili_root_size > 0) { | |
92 | ASSERT(iip->ili_root_size == | |
93 | ip->i_df.if_broot_bytes); | |
94 | ASSERT(memcmp(iip->ili_orig_root, | |
95 | ip->i_df.if_broot, | |
96 | iip->ili_root_size) == 0); | |
97 | } else { | |
98 | ASSERT(ip->i_df.if_broot_bytes == 0); | |
99 | } | |
100 | #endif | |
101 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DBROOT; | |
102 | } | |
103 | break; | |
104 | ||
105 | case XFS_DINODE_FMT_LOCAL: | |
106 | iip->ili_format.ilf_fields &= | |
107 | ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | | |
108 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
109 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DDATA) && | |
110 | (ip->i_df.if_bytes > 0)) { | |
111 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
112 | ASSERT(ip->i_d.di_size > 0); | |
113 | nvecs++; | |
114 | } else { | |
115 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DDATA; | |
116 | } | |
117 | break; | |
118 | ||
119 | case XFS_DINODE_FMT_DEV: | |
120 | iip->ili_format.ilf_fields &= | |
121 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
122 | XFS_ILOG_DEXT | XFS_ILOG_UUID); | |
123 | break; | |
124 | ||
125 | case XFS_DINODE_FMT_UUID: | |
126 | iip->ili_format.ilf_fields &= | |
127 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
128 | XFS_ILOG_DEXT | XFS_ILOG_DEV); | |
129 | break; | |
130 | ||
131 | default: | |
132 | ASSERT(0); | |
133 | break; | |
134 | } | |
135 | ||
136 | /* | |
137 | * If there are no attributes associated with this file, | |
138 | * then there cannot be anything more to log. | |
139 | * Clear all attribute-related log flags. | |
140 | */ | |
141 | if (!XFS_IFORK_Q(ip)) { | |
142 | iip->ili_format.ilf_fields &= | |
143 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT); | |
144 | return nvecs; | |
145 | } | |
146 | ||
147 | /* | |
148 | * Log any necessary attribute data. | |
149 | */ | |
150 | switch (ip->i_d.di_aformat) { | |
151 | case XFS_DINODE_FMT_EXTENTS: | |
152 | iip->ili_format.ilf_fields &= | |
153 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT); | |
154 | if ((iip->ili_format.ilf_fields & XFS_ILOG_AEXT) && | |
155 | (ip->i_d.di_anextents > 0) && | |
156 | (ip->i_afp->if_bytes > 0)) { | |
157 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
158 | nvecs++; | |
159 | } else { | |
160 | iip->ili_format.ilf_fields &= ~XFS_ILOG_AEXT; | |
161 | } | |
162 | break; | |
163 | ||
164 | case XFS_DINODE_FMT_BTREE: | |
165 | iip->ili_format.ilf_fields &= | |
166 | ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT); | |
167 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) && | |
168 | (ip->i_afp->if_broot_bytes > 0)) { | |
169 | ASSERT(ip->i_afp->if_broot != NULL); | |
170 | nvecs++; | |
171 | } else { | |
172 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ABROOT; | |
173 | } | |
174 | break; | |
175 | ||
176 | case XFS_DINODE_FMT_LOCAL: | |
177 | iip->ili_format.ilf_fields &= | |
178 | ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT); | |
179 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ADATA) && | |
180 | (ip->i_afp->if_bytes > 0)) { | |
181 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
182 | nvecs++; | |
183 | } else { | |
184 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ADATA; | |
185 | } | |
186 | break; | |
187 | ||
188 | default: | |
189 | ASSERT(0); | |
190 | break; | |
191 | } | |
192 | ||
193 | return nvecs; | |
194 | } | |
195 | ||
196 | /* | |
197 | * This is called to fill in the vector of log iovecs for the | |
198 | * given inode log item. It fills the first item with an inode | |
199 | * log format structure, the second with the on-disk inode structure, | |
200 | * and a possible third and/or fourth with the inode data/extents/b-tree | |
201 | * root and inode attributes data/extents/b-tree root. | |
202 | */ | |
203 | STATIC void | |
204 | xfs_inode_item_format( | |
205 | xfs_inode_log_item_t *iip, | |
206 | xfs_log_iovec_t *log_vector) | |
207 | { | |
208 | uint nvecs; | |
209 | xfs_log_iovec_t *vecp; | |
210 | xfs_inode_t *ip; | |
211 | size_t data_bytes; | |
212 | xfs_bmbt_rec_t *ext_buffer; | |
213 | int nrecs; | |
214 | xfs_mount_t *mp; | |
215 | ||
216 | ip = iip->ili_inode; | |
217 | vecp = log_vector; | |
218 | ||
219 | vecp->i_addr = (xfs_caddr_t)&iip->ili_format; | |
220 | vecp->i_len = sizeof(xfs_inode_log_format_t); | |
4139b3b3 | 221 | vecp->i_type = XLOG_REG_TYPE_IFORMAT; |
1da177e4 LT |
222 | vecp++; |
223 | nvecs = 1; | |
224 | ||
f9581b14 CH |
225 | /* |
226 | * Make sure the linux inode is dirty. We do this before | |
227 | * clearing i_update_core as the VFS will call back into | |
228 | * XFS here and set i_update_core, so we need to dirty the | |
229 | * inode first so that the ordering of i_update_core and | |
230 | * unlogged modifications still works as described below. | |
231 | */ | |
232 | xfs_mark_inode_dirty_sync(ip); | |
233 | ||
1da177e4 LT |
234 | /* |
235 | * Clear i_update_core if the timestamps (or any other | |
236 | * non-transactional modification) need flushing/logging | |
237 | * and we're about to log them with the rest of the core. | |
238 | * | |
239 | * This is the same logic as xfs_iflush() but this code can't | |
240 | * run at the same time as xfs_iflush because we're in commit | |
241 | * processing here and so we have the inode lock held in | |
242 | * exclusive mode. Although it doesn't really matter | |
243 | * for the timestamps if both routines were to grab the | |
244 | * timestamps or not. That would be ok. | |
245 | * | |
246 | * We clear i_update_core before copying out the data. | |
247 | * This is for coordination with our timestamp updates | |
248 | * that don't hold the inode lock. They will always | |
249 | * update the timestamps BEFORE setting i_update_core, | |
250 | * so if we clear i_update_core after they set it we | |
251 | * are guaranteed to see their updates to the timestamps | |
252 | * either here. Likewise, if they set it after we clear it | |
253 | * here, we'll see it either on the next commit of this | |
254 | * inode or the next time the inode gets flushed via | |
255 | * xfs_iflush(). This depends on strongly ordered memory | |
256 | * semantics, but we have that. We use the SYNCHRONIZE | |
257 | * macro to make sure that the compiler does not reorder | |
258 | * the i_update_core access below the data copy below. | |
259 | */ | |
260 | if (ip->i_update_core) { | |
261 | ip->i_update_core = 0; | |
262 | SYNCHRONIZE(); | |
263 | } | |
264 | ||
42fe2b1f | 265 | /* |
f9581b14 | 266 | * Make sure to get the latest timestamps from the Linux inode. |
42fe2b1f | 267 | */ |
f9581b14 | 268 | xfs_synchronize_times(ip); |
5d51eff4 | 269 | |
1da177e4 | 270 | vecp->i_addr = (xfs_caddr_t)&ip->i_d; |
81591fe2 | 271 | vecp->i_len = sizeof(struct xfs_icdinode); |
4139b3b3 | 272 | vecp->i_type = XLOG_REG_TYPE_ICORE; |
1da177e4 LT |
273 | vecp++; |
274 | nvecs++; | |
275 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
276 | ||
277 | /* | |
278 | * If this is really an old format inode, then we need to | |
279 | * log it as such. This means that we have to copy the link | |
280 | * count from the new field to the old. We don't have to worry | |
281 | * about the new fields, because nothing trusts them as long as | |
282 | * the old inode version number is there. If the superblock already | |
283 | * has a new version number, then we don't bother converting back. | |
284 | */ | |
285 | mp = ip->i_mount; | |
51ce16d5 CH |
286 | ASSERT(ip->i_d.di_version == 1 || xfs_sb_version_hasnlink(&mp->m_sb)); |
287 | if (ip->i_d.di_version == 1) { | |
62118709 | 288 | if (!xfs_sb_version_hasnlink(&mp->m_sb)) { |
1da177e4 LT |
289 | /* |
290 | * Convert it back. | |
291 | */ | |
292 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
293 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
294 | } else { | |
295 | /* | |
296 | * The superblock version has already been bumped, | |
297 | * so just make the conversion to the new inode | |
298 | * format permanent. | |
299 | */ | |
51ce16d5 | 300 | ip->i_d.di_version = 2; |
1da177e4 LT |
301 | ip->i_d.di_onlink = 0; |
302 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
303 | } | |
304 | } | |
305 | ||
306 | switch (ip->i_d.di_format) { | |
307 | case XFS_DINODE_FMT_EXTENTS: | |
308 | ASSERT(!(iip->ili_format.ilf_fields & | |
309 | (XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
310 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
311 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) { | |
312 | ASSERT(ip->i_df.if_bytes > 0); | |
313 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
314 | ASSERT(ip->i_d.di_nextents > 0); | |
315 | ASSERT(iip->ili_extents_buf == NULL); | |
316 | nrecs = ip->i_df.if_bytes / | |
317 | (uint)sizeof(xfs_bmbt_rec_t); | |
318 | ASSERT(nrecs > 0); | |
f016bad6 | 319 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
320 | if (nrecs == ip->i_d.di_nextents) { |
321 | /* | |
322 | * There are no delayed allocation | |
323 | * extents, so just point to the | |
324 | * real extents array. | |
325 | */ | |
326 | vecp->i_addr = | |
327 | (char *)(ip->i_df.if_u1.if_extents); | |
328 | vecp->i_len = ip->i_df.if_bytes; | |
4139b3b3 | 329 | vecp->i_type = XLOG_REG_TYPE_IEXT; |
1da177e4 LT |
330 | } else |
331 | #endif | |
332 | { | |
333 | /* | |
334 | * There are delayed allocation extents | |
335 | * in the inode, or we need to convert | |
336 | * the extents to on disk format. | |
337 | * Use xfs_iextents_copy() | |
338 | * to copy only the real extents into | |
339 | * a separate buffer. We'll free the | |
340 | * buffer in the unlock routine. | |
341 | */ | |
342 | ext_buffer = kmem_alloc(ip->i_df.if_bytes, | |
343 | KM_SLEEP); | |
344 | iip->ili_extents_buf = ext_buffer; | |
345 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
346 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
347 | XFS_DATA_FORK); | |
4139b3b3 | 348 | vecp->i_type = XLOG_REG_TYPE_IEXT; |
1da177e4 LT |
349 | } |
350 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
351 | iip->ili_format.ilf_dsize = vecp->i_len; | |
352 | vecp++; | |
353 | nvecs++; | |
354 | } | |
355 | break; | |
356 | ||
357 | case XFS_DINODE_FMT_BTREE: | |
358 | ASSERT(!(iip->ili_format.ilf_fields & | |
359 | (XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
360 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
361 | if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) { | |
362 | ASSERT(ip->i_df.if_broot_bytes > 0); | |
363 | ASSERT(ip->i_df.if_broot != NULL); | |
364 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot; | |
365 | vecp->i_len = ip->i_df.if_broot_bytes; | |
4139b3b3 | 366 | vecp->i_type = XLOG_REG_TYPE_IBROOT; |
1da177e4 LT |
367 | vecp++; |
368 | nvecs++; | |
369 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
370 | } | |
371 | break; | |
372 | ||
373 | case XFS_DINODE_FMT_LOCAL: | |
374 | ASSERT(!(iip->ili_format.ilf_fields & | |
375 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
376 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
377 | if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) { | |
378 | ASSERT(ip->i_df.if_bytes > 0); | |
379 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
380 | ASSERT(ip->i_d.di_size > 0); | |
381 | ||
382 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data; | |
383 | /* | |
384 | * Round i_bytes up to a word boundary. | |
385 | * The underlying memory is guaranteed to | |
386 | * to be there by xfs_idata_realloc(). | |
387 | */ | |
388 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
389 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
390 | (ip->i_df.if_real_bytes == data_bytes)); | |
391 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 392 | vecp->i_type = XLOG_REG_TYPE_ILOCAL; |
1da177e4 LT |
393 | vecp++; |
394 | nvecs++; | |
395 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
396 | } | |
397 | break; | |
398 | ||
399 | case XFS_DINODE_FMT_DEV: | |
400 | ASSERT(!(iip->ili_format.ilf_fields & | |
401 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
402 | XFS_ILOG_DDATA | XFS_ILOG_UUID))); | |
403 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) { | |
404 | iip->ili_format.ilf_u.ilfu_rdev = | |
405 | ip->i_df.if_u2.if_rdev; | |
406 | } | |
407 | break; | |
408 | ||
409 | case XFS_DINODE_FMT_UUID: | |
410 | ASSERT(!(iip->ili_format.ilf_fields & | |
411 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
412 | XFS_ILOG_DDATA | XFS_ILOG_DEV))); | |
413 | if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) { | |
414 | iip->ili_format.ilf_u.ilfu_uuid = | |
415 | ip->i_df.if_u2.if_uuid; | |
416 | } | |
417 | break; | |
418 | ||
419 | default: | |
420 | ASSERT(0); | |
421 | break; | |
422 | } | |
423 | ||
424 | /* | |
425 | * If there are no attributes associated with the file, | |
426 | * then we're done. | |
427 | * Assert that no attribute-related log flags are set. | |
428 | */ | |
429 | if (!XFS_IFORK_Q(ip)) { | |
430 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
431 | iip->ili_format.ilf_size = nvecs; | |
432 | ASSERT(!(iip->ili_format.ilf_fields & | |
433 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
434 | return; | |
435 | } | |
436 | ||
437 | switch (ip->i_d.di_aformat) { | |
438 | case XFS_DINODE_FMT_EXTENTS: | |
439 | ASSERT(!(iip->ili_format.ilf_fields & | |
440 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT))); | |
441 | if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) { | |
442 | ASSERT(ip->i_afp->if_bytes > 0); | |
443 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
444 | ASSERT(ip->i_d.di_anextents > 0); | |
445 | #ifdef DEBUG | |
446 | nrecs = ip->i_afp->if_bytes / | |
447 | (uint)sizeof(xfs_bmbt_rec_t); | |
448 | #endif | |
449 | ASSERT(nrecs > 0); | |
450 | ASSERT(nrecs == ip->i_d.di_anextents); | |
f016bad6 | 451 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
452 | /* |
453 | * There are not delayed allocation extents | |
454 | * for attributes, so just point at the array. | |
455 | */ | |
456 | vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents); | |
457 | vecp->i_len = ip->i_afp->if_bytes; | |
458 | #else | |
459 | ASSERT(iip->ili_aextents_buf == NULL); | |
460 | /* | |
461 | * Need to endian flip before logging | |
462 | */ | |
463 | ext_buffer = kmem_alloc(ip->i_afp->if_bytes, | |
464 | KM_SLEEP); | |
465 | iip->ili_aextents_buf = ext_buffer; | |
466 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
467 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
468 | XFS_ATTR_FORK); | |
469 | #endif | |
4139b3b3 | 470 | vecp->i_type = XLOG_REG_TYPE_IATTR_EXT; |
1da177e4 LT |
471 | iip->ili_format.ilf_asize = vecp->i_len; |
472 | vecp++; | |
473 | nvecs++; | |
474 | } | |
475 | break; | |
476 | ||
477 | case XFS_DINODE_FMT_BTREE: | |
478 | ASSERT(!(iip->ili_format.ilf_fields & | |
479 | (XFS_ILOG_ADATA | XFS_ILOG_AEXT))); | |
480 | if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) { | |
481 | ASSERT(ip->i_afp->if_broot_bytes > 0); | |
482 | ASSERT(ip->i_afp->if_broot != NULL); | |
483 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot; | |
484 | vecp->i_len = ip->i_afp->if_broot_bytes; | |
4139b3b3 | 485 | vecp->i_type = XLOG_REG_TYPE_IATTR_BROOT; |
1da177e4 LT |
486 | vecp++; |
487 | nvecs++; | |
488 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
489 | } | |
490 | break; | |
491 | ||
492 | case XFS_DINODE_FMT_LOCAL: | |
493 | ASSERT(!(iip->ili_format.ilf_fields & | |
494 | (XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
495 | if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) { | |
496 | ASSERT(ip->i_afp->if_bytes > 0); | |
497 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
498 | ||
499 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data; | |
500 | /* | |
501 | * Round i_bytes up to a word boundary. | |
502 | * The underlying memory is guaranteed to | |
503 | * to be there by xfs_idata_realloc(). | |
504 | */ | |
505 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
506 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
507 | (ip->i_afp->if_real_bytes == data_bytes)); | |
508 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 509 | vecp->i_type = XLOG_REG_TYPE_IATTR_LOCAL; |
1da177e4 LT |
510 | vecp++; |
511 | nvecs++; | |
512 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
513 | } | |
514 | break; | |
515 | ||
516 | default: | |
517 | ASSERT(0); | |
518 | break; | |
519 | } | |
520 | ||
521 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
522 | iip->ili_format.ilf_size = nvecs; | |
523 | } | |
524 | ||
525 | ||
526 | /* | |
527 | * This is called to pin the inode associated with the inode log | |
a14a5ab5 | 528 | * item in memory so it cannot be written out. |
1da177e4 LT |
529 | */ |
530 | STATIC void | |
531 | xfs_inode_item_pin( | |
532 | xfs_inode_log_item_t *iip) | |
533 | { | |
579aa9ca | 534 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
a14a5ab5 | 535 | |
4aaf15d1 | 536 | trace_xfs_inode_pin(iip->ili_inode, _RET_IP_); |
a14a5ab5 | 537 | atomic_inc(&iip->ili_inode->i_pincount); |
1da177e4 LT |
538 | } |
539 | ||
540 | ||
541 | /* | |
542 | * This is called to unpin the inode associated with the inode log | |
543 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
a14a5ab5 CH |
544 | * |
545 | * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0. | |
1da177e4 | 546 | */ |
1da177e4 LT |
547 | STATIC void |
548 | xfs_inode_item_unpin( | |
9412e318 CH |
549 | xfs_inode_log_item_t *iip, |
550 | int remove) | |
1da177e4 | 551 | { |
a14a5ab5 CH |
552 | struct xfs_inode *ip = iip->ili_inode; |
553 | ||
4aaf15d1 | 554 | trace_xfs_inode_unpin(ip, _RET_IP_); |
a14a5ab5 CH |
555 | ASSERT(atomic_read(&ip->i_pincount) > 0); |
556 | if (atomic_dec_and_test(&ip->i_pincount)) | |
557 | wake_up(&ip->i_ipin_wait); | |
1da177e4 LT |
558 | } |
559 | ||
1da177e4 LT |
560 | /* |
561 | * This is called to attempt to lock the inode associated with this | |
562 | * inode log item, in preparation for the push routine which does the actual | |
563 | * iflush. Don't sleep on the inode lock or the flush lock. | |
564 | * | |
565 | * If the flush lock is already held, indicating that the inode has | |
566 | * been or is in the process of being flushed, then (ideally) we'd like to | |
567 | * see if the inode's buffer is still incore, and if so give it a nudge. | |
568 | * We delay doing so until the pushbuf routine, though, to avoid holding | |
c41564b5 | 569 | * the AIL lock across a call to the blackhole which is the buffer cache. |
1da177e4 LT |
570 | * Also we don't want to sleep in any device strategy routines, which can happen |
571 | * if we do the subsequent bawrite in here. | |
572 | */ | |
573 | STATIC uint | |
574 | xfs_inode_item_trylock( | |
575 | xfs_inode_log_item_t *iip) | |
576 | { | |
577 | register xfs_inode_t *ip; | |
578 | ||
579 | ip = iip->ili_inode; | |
580 | ||
581 | if (xfs_ipincount(ip) > 0) { | |
582 | return XFS_ITEM_PINNED; | |
583 | } | |
584 | ||
585 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) { | |
586 | return XFS_ITEM_LOCKED; | |
587 | } | |
588 | ||
589 | if (!xfs_iflock_nowait(ip)) { | |
590 | /* | |
d808f617 DC |
591 | * inode has already been flushed to the backing buffer, |
592 | * leave it locked in shared mode, pushbuf routine will | |
593 | * unlock it. | |
1da177e4 | 594 | */ |
d808f617 | 595 | return XFS_ITEM_PUSHBUF; |
1da177e4 LT |
596 | } |
597 | ||
598 | /* Stale items should force out the iclog */ | |
599 | if (ip->i_flags & XFS_ISTALE) { | |
600 | xfs_ifunlock(ip); | |
d808f617 DC |
601 | /* |
602 | * we hold the AIL lock - notify the unlock routine of this | |
603 | * so it doesn't try to get the lock again. | |
604 | */ | |
1da177e4 LT |
605 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); |
606 | return XFS_ITEM_PINNED; | |
607 | } | |
608 | ||
609 | #ifdef DEBUG | |
610 | if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) { | |
611 | ASSERT(iip->ili_format.ilf_fields != 0); | |
612 | ASSERT(iip->ili_logged == 0); | |
613 | ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL); | |
614 | } | |
615 | #endif | |
616 | return XFS_ITEM_SUCCESS; | |
617 | } | |
618 | ||
619 | /* | |
620 | * Unlock the inode associated with the inode log item. | |
621 | * Clear the fields of the inode and inode log item that | |
622 | * are specific to the current transaction. If the | |
623 | * hold flags is set, do not unlock the inode. | |
624 | */ | |
625 | STATIC void | |
626 | xfs_inode_item_unlock( | |
627 | xfs_inode_log_item_t *iip) | |
628 | { | |
629 | uint hold; | |
630 | uint iolocked; | |
631 | uint lock_flags; | |
632 | xfs_inode_t *ip; | |
633 | ||
634 | ASSERT(iip != NULL); | |
635 | ASSERT(iip->ili_inode->i_itemp != NULL); | |
579aa9ca | 636 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
1da177e4 LT |
637 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
638 | XFS_ILI_IOLOCKED_EXCL)) || | |
579aa9ca | 639 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL)); |
1da177e4 LT |
640 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
641 | XFS_ILI_IOLOCKED_SHARED)) || | |
579aa9ca | 642 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED)); |
1da177e4 LT |
643 | /* |
644 | * Clear the transaction pointer in the inode. | |
645 | */ | |
646 | ip = iip->ili_inode; | |
647 | ip->i_transp = NULL; | |
648 | ||
649 | /* | |
650 | * If the inode needed a separate buffer with which to log | |
651 | * its extents, then free it now. | |
652 | */ | |
653 | if (iip->ili_extents_buf != NULL) { | |
654 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
655 | ASSERT(ip->i_d.di_nextents > 0); | |
656 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT); | |
657 | ASSERT(ip->i_df.if_bytes > 0); | |
f0e2d93c | 658 | kmem_free(iip->ili_extents_buf); |
1da177e4 LT |
659 | iip->ili_extents_buf = NULL; |
660 | } | |
661 | if (iip->ili_aextents_buf != NULL) { | |
662 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
663 | ASSERT(ip->i_d.di_anextents > 0); | |
664 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT); | |
665 | ASSERT(ip->i_afp->if_bytes > 0); | |
f0e2d93c | 666 | kmem_free(iip->ili_aextents_buf); |
1da177e4 LT |
667 | iip->ili_aextents_buf = NULL; |
668 | } | |
669 | ||
670 | /* | |
671 | * Figure out if we should unlock the inode or not. | |
672 | */ | |
673 | hold = iip->ili_flags & XFS_ILI_HOLD; | |
674 | ||
675 | /* | |
676 | * Before clearing out the flags, remember whether we | |
677 | * are holding the inode's IO lock. | |
678 | */ | |
679 | iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY; | |
680 | ||
681 | /* | |
682 | * Clear out the fields of the inode log item particular | |
683 | * to the current transaction. | |
684 | */ | |
1da177e4 LT |
685 | iip->ili_flags = 0; |
686 | ||
687 | /* | |
688 | * Unlock the inode if XFS_ILI_HOLD was not set. | |
689 | */ | |
690 | if (!hold) { | |
691 | lock_flags = XFS_ILOCK_EXCL; | |
692 | if (iolocked & XFS_ILI_IOLOCKED_EXCL) { | |
693 | lock_flags |= XFS_IOLOCK_EXCL; | |
694 | } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) { | |
695 | lock_flags |= XFS_IOLOCK_SHARED; | |
696 | } | |
697 | xfs_iput(iip->ili_inode, lock_flags); | |
698 | } | |
699 | } | |
700 | ||
701 | /* | |
702 | * This is called to find out where the oldest active copy of the | |
703 | * inode log item in the on disk log resides now that the last log | |
704 | * write of it completed at the given lsn. Since we always re-log | |
705 | * all dirty data in an inode, the latest copy in the on disk log | |
706 | * is the only one that matters. Therefore, simply return the | |
707 | * given lsn. | |
708 | */ | |
709 | /*ARGSUSED*/ | |
710 | STATIC xfs_lsn_t | |
711 | xfs_inode_item_committed( | |
712 | xfs_inode_log_item_t *iip, | |
713 | xfs_lsn_t lsn) | |
714 | { | |
715 | return (lsn); | |
716 | } | |
717 | ||
1da177e4 LT |
718 | /* |
719 | * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK | |
720 | * failed to get the inode flush lock but did get the inode locked SHARED. | |
721 | * Here we're trying to see if the inode buffer is incore, and if so whether it's | |
d808f617 DC |
722 | * marked delayed write. If that's the case, we'll promote it and that will |
723 | * allow the caller to write the buffer by triggering the xfsbufd to run. | |
1da177e4 LT |
724 | */ |
725 | STATIC void | |
726 | xfs_inode_item_pushbuf( | |
727 | xfs_inode_log_item_t *iip) | |
728 | { | |
729 | xfs_inode_t *ip; | |
730 | xfs_mount_t *mp; | |
731 | xfs_buf_t *bp; | |
1da177e4 LT |
732 | |
733 | ip = iip->ili_inode; | |
579aa9ca | 734 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
1da177e4 | 735 | |
1da177e4 | 736 | /* |
c63942d3 DC |
737 | * If a flush is not in progress anymore, chances are that the |
738 | * inode was taken off the AIL. So, just get out. | |
1da177e4 | 739 | */ |
c63942d3 | 740 | if (completion_done(&ip->i_flush) || |
1da177e4 | 741 | ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) { |
1da177e4 LT |
742 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
743 | return; | |
744 | } | |
745 | ||
746 | mp = ip->i_mount; | |
747 | bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno, | |
0cadda1c | 748 | iip->ili_format.ilf_len, XBF_TRYLOCK); |
1da177e4 | 749 | |
1da177e4 | 750 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
d808f617 DC |
751 | if (!bp) |
752 | return; | |
753 | if (XFS_BUF_ISDELAYWRITE(bp)) | |
754 | xfs_buf_delwri_promote(bp); | |
755 | xfs_buf_relse(bp); | |
1da177e4 LT |
756 | return; |
757 | } | |
758 | ||
759 | ||
760 | /* | |
761 | * This is called to asynchronously write the inode associated with this | |
762 | * inode log item out to disk. The inode will already have been locked by | |
763 | * a successful call to xfs_inode_item_trylock(). | |
764 | */ | |
765 | STATIC void | |
766 | xfs_inode_item_push( | |
767 | xfs_inode_log_item_t *iip) | |
768 | { | |
769 | xfs_inode_t *ip; | |
770 | ||
771 | ip = iip->ili_inode; | |
772 | ||
579aa9ca | 773 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
c63942d3 | 774 | ASSERT(!completion_done(&ip->i_flush)); |
1da177e4 LT |
775 | /* |
776 | * Since we were able to lock the inode's flush lock and | |
777 | * we found it on the AIL, the inode must be dirty. This | |
778 | * is because the inode is removed from the AIL while still | |
779 | * holding the flush lock in xfs_iflush_done(). Thus, if | |
780 | * we found it in the AIL and were able to obtain the flush | |
781 | * lock without sleeping, then there must not have been | |
782 | * anyone in the process of flushing the inode. | |
783 | */ | |
784 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || | |
785 | iip->ili_format.ilf_fields != 0); | |
786 | ||
787 | /* | |
c854363e DC |
788 | * Push the inode to it's backing buffer. This will not remove the |
789 | * inode from the AIL - a further push will be required to trigger a | |
790 | * buffer push. However, this allows all the dirty inodes to be pushed | |
791 | * to the buffer before it is pushed to disk. THe buffer IO completion | |
792 | * will pull th einode from the AIL, mark it clean and unlock the flush | |
793 | * lock. | |
1da177e4 | 794 | */ |
c854363e | 795 | (void) xfs_iflush(ip, 0); |
1da177e4 LT |
796 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
797 | ||
798 | return; | |
799 | } | |
800 | ||
801 | /* | |
802 | * XXX rcc - this one really has to do something. Probably needs | |
803 | * to stamp in a new field in the incore inode. | |
804 | */ | |
805 | /* ARGSUSED */ | |
806 | STATIC void | |
807 | xfs_inode_item_committing( | |
808 | xfs_inode_log_item_t *iip, | |
809 | xfs_lsn_t lsn) | |
810 | { | |
811 | iip->ili_last_lsn = lsn; | |
812 | return; | |
813 | } | |
814 | ||
815 | /* | |
816 | * This is the ops vector shared by all buf log items. | |
817 | */ | |
7989cb8e | 818 | static struct xfs_item_ops xfs_inode_item_ops = { |
1da177e4 LT |
819 | .iop_size = (uint(*)(xfs_log_item_t*))xfs_inode_item_size, |
820 | .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) | |
821 | xfs_inode_item_format, | |
822 | .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin, | |
9412e318 | 823 | .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin, |
1da177e4 LT |
824 | .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock, |
825 | .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock, | |
826 | .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) | |
827 | xfs_inode_item_committed, | |
828 | .iop_push = (void(*)(xfs_log_item_t*))xfs_inode_item_push, | |
1da177e4 LT |
829 | .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf, |
830 | .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t)) | |
831 | xfs_inode_item_committing | |
832 | }; | |
833 | ||
834 | ||
835 | /* | |
836 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
837 | */ | |
838 | void | |
839 | xfs_inode_item_init( | |
840 | xfs_inode_t *ip, | |
841 | xfs_mount_t *mp) | |
842 | { | |
843 | xfs_inode_log_item_t *iip; | |
844 | ||
845 | ASSERT(ip->i_itemp == NULL); | |
846 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
847 | ||
1da177e4 | 848 | iip->ili_inode = ip; |
43f5efc5 DC |
849 | xfs_log_item_init(mp, &iip->ili_item, XFS_LI_INODE, |
850 | &xfs_inode_item_ops); | |
1da177e4 LT |
851 | iip->ili_format.ilf_type = XFS_LI_INODE; |
852 | iip->ili_format.ilf_ino = ip->i_ino; | |
92bfc6e7 CH |
853 | iip->ili_format.ilf_blkno = ip->i_imap.im_blkno; |
854 | iip->ili_format.ilf_len = ip->i_imap.im_len; | |
855 | iip->ili_format.ilf_boffset = ip->i_imap.im_boffset; | |
1da177e4 LT |
856 | } |
857 | ||
858 | /* | |
859 | * Free the inode log item and any memory hanging off of it. | |
860 | */ | |
861 | void | |
862 | xfs_inode_item_destroy( | |
863 | xfs_inode_t *ip) | |
864 | { | |
865 | #ifdef XFS_TRANS_DEBUG | |
866 | if (ip->i_itemp->ili_root_size != 0) { | |
f0e2d93c | 867 | kmem_free(ip->i_itemp->ili_orig_root); |
1da177e4 LT |
868 | } |
869 | #endif | |
870 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
871 | } | |
872 | ||
873 | ||
874 | /* | |
875 | * This is the inode flushing I/O completion routine. It is called | |
876 | * from interrupt level when the buffer containing the inode is | |
877 | * flushed to disk. It is responsible for removing the inode item | |
878 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
879 | * flush lock. | |
880 | */ | |
881 | /*ARGSUSED*/ | |
882 | void | |
883 | xfs_iflush_done( | |
884 | xfs_buf_t *bp, | |
885 | xfs_inode_log_item_t *iip) | |
886 | { | |
783a2f65 DC |
887 | xfs_inode_t *ip = iip->ili_inode; |
888 | struct xfs_ail *ailp = iip->ili_item.li_ailp; | |
1da177e4 LT |
889 | |
890 | /* | |
891 | * We only want to pull the item from the AIL if it is | |
892 | * actually there and its location in the log has not | |
893 | * changed since we started the flush. Thus, we only bother | |
894 | * if the ili_logged flag is set and the inode's lsn has not | |
895 | * changed. First we check the lsn outside | |
896 | * the lock since it's cheaper, and then we recheck while | |
897 | * holding the lock before removing the inode from the AIL. | |
898 | */ | |
899 | if (iip->ili_logged && | |
900 | (iip->ili_item.li_lsn == iip->ili_flush_lsn)) { | |
783a2f65 | 901 | spin_lock(&ailp->xa_lock); |
1da177e4 | 902 | if (iip->ili_item.li_lsn == iip->ili_flush_lsn) { |
783a2f65 DC |
903 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
904 | xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip); | |
1da177e4 | 905 | } else { |
783a2f65 | 906 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
907 | } |
908 | } | |
909 | ||
910 | iip->ili_logged = 0; | |
911 | ||
912 | /* | |
913 | * Clear the ili_last_fields bits now that we know that the | |
914 | * data corresponding to them is safely on disk. | |
915 | */ | |
916 | iip->ili_last_fields = 0; | |
917 | ||
918 | /* | |
919 | * Release the inode's flush lock since we're done with it. | |
920 | */ | |
921 | xfs_ifunlock(ip); | |
922 | ||
923 | return; | |
924 | } | |
925 | ||
926 | /* | |
927 | * This is the inode flushing abort routine. It is called | |
928 | * from xfs_iflush when the filesystem is shutting down to clean | |
929 | * up the inode state. | |
930 | * It is responsible for removing the inode item | |
931 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
932 | * flush lock. | |
933 | */ | |
934 | void | |
935 | xfs_iflush_abort( | |
936 | xfs_inode_t *ip) | |
937 | { | |
783a2f65 | 938 | xfs_inode_log_item_t *iip = ip->i_itemp; |
1da177e4 | 939 | xfs_mount_t *mp; |
1da177e4 LT |
940 | |
941 | iip = ip->i_itemp; | |
942 | mp = ip->i_mount; | |
943 | if (iip) { | |
783a2f65 | 944 | struct xfs_ail *ailp = iip->ili_item.li_ailp; |
1da177e4 | 945 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 946 | spin_lock(&ailp->xa_lock); |
1da177e4 | 947 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 DC |
948 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
949 | xfs_trans_ail_delete(ailp, (xfs_log_item_t *)iip); | |
1da177e4 | 950 | } else |
783a2f65 | 951 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
952 | } |
953 | iip->ili_logged = 0; | |
954 | /* | |
955 | * Clear the ili_last_fields bits now that we know that the | |
956 | * data corresponding to them is safely on disk. | |
957 | */ | |
958 | iip->ili_last_fields = 0; | |
959 | /* | |
960 | * Clear the inode logging fields so no more flushes are | |
961 | * attempted. | |
962 | */ | |
963 | iip->ili_format.ilf_fields = 0; | |
964 | } | |
965 | /* | |
966 | * Release the inode's flush lock since we're done with it. | |
967 | */ | |
968 | xfs_ifunlock(ip); | |
969 | } | |
970 | ||
971 | void | |
972 | xfs_istale_done( | |
973 | xfs_buf_t *bp, | |
974 | xfs_inode_log_item_t *iip) | |
975 | { | |
976 | xfs_iflush_abort(iip->ili_inode); | |
977 | } | |
6d192a9b TS |
978 | |
979 | /* | |
980 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
981 | * (which can have different field alignments) to the native version | |
982 | */ | |
983 | int | |
984 | xfs_inode_item_format_convert( | |
985 | xfs_log_iovec_t *buf, | |
986 | xfs_inode_log_format_t *in_f) | |
987 | { | |
988 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
989 | xfs_inode_log_format_32_t *in_f32; | |
990 | ||
991 | in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr; | |
992 | in_f->ilf_type = in_f32->ilf_type; | |
993 | in_f->ilf_size = in_f32->ilf_size; | |
994 | in_f->ilf_fields = in_f32->ilf_fields; | |
995 | in_f->ilf_asize = in_f32->ilf_asize; | |
996 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
997 | in_f->ilf_ino = in_f32->ilf_ino; | |
998 | /* copy biggest field of ilf_u */ | |
999 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1000 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
1001 | sizeof(uuid_t)); | |
1002 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
1003 | in_f->ilf_len = in_f32->ilf_len; | |
1004 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
1005 | return 0; | |
1006 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
1007 | xfs_inode_log_format_64_t *in_f64; | |
1008 | ||
1009 | in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr; | |
1010 | in_f->ilf_type = in_f64->ilf_type; | |
1011 | in_f->ilf_size = in_f64->ilf_size; | |
1012 | in_f->ilf_fields = in_f64->ilf_fields; | |
1013 | in_f->ilf_asize = in_f64->ilf_asize; | |
1014 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
1015 | in_f->ilf_ino = in_f64->ilf_ino; | |
1016 | /* copy biggest field of ilf_u */ | |
1017 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1018 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
1019 | sizeof(uuid_t)); | |
1020 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
1021 | in_f->ilf_len = in_f64->ilf_len; | |
1022 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
1023 | return 0; | |
1024 | } | |
1025 | return EFSCORRUPTED; | |
1026 | } |