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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 | ||
7bfa31d8 CH |
39 | static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip) |
40 | { | |
41 | return container_of(lip, struct xfs_inode_log_item, ili_item); | |
42 | } | |
43 | ||
44 | ||
1da177e4 LT |
45 | /* |
46 | * This returns the number of iovecs needed to log the given inode item. | |
47 | * | |
48 | * We need one iovec for the inode log format structure, one for the | |
49 | * inode core, and possibly one for the inode data/extents/b-tree root | |
50 | * and one for the inode attribute data/extents/b-tree root. | |
51 | */ | |
52 | STATIC uint | |
53 | xfs_inode_item_size( | |
7bfa31d8 | 54 | struct xfs_log_item *lip) |
1da177e4 | 55 | { |
7bfa31d8 CH |
56 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
57 | struct xfs_inode *ip = iip->ili_inode; | |
58 | uint nvecs = 2; | |
1da177e4 LT |
59 | |
60 | /* | |
61 | * Only log the data/extents/b-tree root if there is something | |
62 | * left to log. | |
63 | */ | |
64 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
65 | ||
66 | switch (ip->i_d.di_format) { | |
67 | case XFS_DINODE_FMT_EXTENTS: | |
68 | iip->ili_format.ilf_fields &= | |
69 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
70 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
71 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DEXT) && | |
72 | (ip->i_d.di_nextents > 0) && | |
73 | (ip->i_df.if_bytes > 0)) { | |
74 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
75 | nvecs++; | |
76 | } else { | |
77 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DEXT; | |
78 | } | |
79 | break; | |
80 | ||
81 | case XFS_DINODE_FMT_BTREE: | |
82 | ASSERT(ip->i_df.if_ext_max == | |
83 | XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t)); | |
84 | iip->ili_format.ilf_fields &= | |
85 | ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
86 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
87 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) && | |
88 | (ip->i_df.if_broot_bytes > 0)) { | |
89 | ASSERT(ip->i_df.if_broot != NULL); | |
90 | nvecs++; | |
91 | } else { | |
92 | ASSERT(!(iip->ili_format.ilf_fields & | |
93 | XFS_ILOG_DBROOT)); | |
94 | #ifdef XFS_TRANS_DEBUG | |
95 | if (iip->ili_root_size > 0) { | |
96 | ASSERT(iip->ili_root_size == | |
97 | ip->i_df.if_broot_bytes); | |
98 | ASSERT(memcmp(iip->ili_orig_root, | |
99 | ip->i_df.if_broot, | |
100 | iip->ili_root_size) == 0); | |
101 | } else { | |
102 | ASSERT(ip->i_df.if_broot_bytes == 0); | |
103 | } | |
104 | #endif | |
105 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DBROOT; | |
106 | } | |
107 | break; | |
108 | ||
109 | case XFS_DINODE_FMT_LOCAL: | |
110 | iip->ili_format.ilf_fields &= | |
111 | ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | | |
112 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
113 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DDATA) && | |
114 | (ip->i_df.if_bytes > 0)) { | |
115 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
116 | ASSERT(ip->i_d.di_size > 0); | |
117 | nvecs++; | |
118 | } else { | |
119 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DDATA; | |
120 | } | |
121 | break; | |
122 | ||
123 | case XFS_DINODE_FMT_DEV: | |
124 | iip->ili_format.ilf_fields &= | |
125 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
126 | XFS_ILOG_DEXT | XFS_ILOG_UUID); | |
127 | break; | |
128 | ||
129 | case XFS_DINODE_FMT_UUID: | |
130 | iip->ili_format.ilf_fields &= | |
131 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
132 | XFS_ILOG_DEXT | XFS_ILOG_DEV); | |
133 | break; | |
134 | ||
135 | default: | |
136 | ASSERT(0); | |
137 | break; | |
138 | } | |
139 | ||
140 | /* | |
141 | * If there are no attributes associated with this file, | |
142 | * then there cannot be anything more to log. | |
143 | * Clear all attribute-related log flags. | |
144 | */ | |
145 | if (!XFS_IFORK_Q(ip)) { | |
146 | iip->ili_format.ilf_fields &= | |
147 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT); | |
148 | return nvecs; | |
149 | } | |
150 | ||
151 | /* | |
152 | * Log any necessary attribute data. | |
153 | */ | |
154 | switch (ip->i_d.di_aformat) { | |
155 | case XFS_DINODE_FMT_EXTENTS: | |
156 | iip->ili_format.ilf_fields &= | |
157 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT); | |
158 | if ((iip->ili_format.ilf_fields & XFS_ILOG_AEXT) && | |
159 | (ip->i_d.di_anextents > 0) && | |
160 | (ip->i_afp->if_bytes > 0)) { | |
161 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
162 | nvecs++; | |
163 | } else { | |
164 | iip->ili_format.ilf_fields &= ~XFS_ILOG_AEXT; | |
165 | } | |
166 | break; | |
167 | ||
168 | case XFS_DINODE_FMT_BTREE: | |
169 | iip->ili_format.ilf_fields &= | |
170 | ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT); | |
171 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) && | |
172 | (ip->i_afp->if_broot_bytes > 0)) { | |
173 | ASSERT(ip->i_afp->if_broot != NULL); | |
174 | nvecs++; | |
175 | } else { | |
176 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ABROOT; | |
177 | } | |
178 | break; | |
179 | ||
180 | case XFS_DINODE_FMT_LOCAL: | |
181 | iip->ili_format.ilf_fields &= | |
182 | ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT); | |
183 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ADATA) && | |
184 | (ip->i_afp->if_bytes > 0)) { | |
185 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
186 | nvecs++; | |
187 | } else { | |
188 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ADATA; | |
189 | } | |
190 | break; | |
191 | ||
192 | default: | |
193 | ASSERT(0); | |
194 | break; | |
195 | } | |
196 | ||
197 | return nvecs; | |
198 | } | |
199 | ||
200 | /* | |
201 | * This is called to fill in the vector of log iovecs for the | |
202 | * given inode log item. It fills the first item with an inode | |
203 | * log format structure, the second with the on-disk inode structure, | |
204 | * and a possible third and/or fourth with the inode data/extents/b-tree | |
205 | * root and inode attributes data/extents/b-tree root. | |
206 | */ | |
207 | STATIC void | |
208 | xfs_inode_item_format( | |
7bfa31d8 CH |
209 | struct xfs_log_item *lip, |
210 | struct xfs_log_iovec *vecp) | |
1da177e4 | 211 | { |
7bfa31d8 CH |
212 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
213 | struct xfs_inode *ip = iip->ili_inode; | |
1da177e4 | 214 | uint nvecs; |
1da177e4 LT |
215 | size_t data_bytes; |
216 | xfs_bmbt_rec_t *ext_buffer; | |
217 | int nrecs; | |
218 | xfs_mount_t *mp; | |
219 | ||
1da177e4 LT |
220 | vecp->i_addr = (xfs_caddr_t)&iip->ili_format; |
221 | vecp->i_len = sizeof(xfs_inode_log_format_t); | |
4139b3b3 | 222 | vecp->i_type = XLOG_REG_TYPE_IFORMAT; |
1da177e4 LT |
223 | vecp++; |
224 | nvecs = 1; | |
225 | ||
f9581b14 CH |
226 | /* |
227 | * Make sure the linux inode is dirty. We do this before | |
228 | * clearing i_update_core as the VFS will call back into | |
229 | * XFS here and set i_update_core, so we need to dirty the | |
230 | * inode first so that the ordering of i_update_core and | |
231 | * unlogged modifications still works as described below. | |
232 | */ | |
233 | xfs_mark_inode_dirty_sync(ip); | |
234 | ||
1da177e4 LT |
235 | /* |
236 | * Clear i_update_core if the timestamps (or any other | |
237 | * non-transactional modification) need flushing/logging | |
238 | * and we're about to log them with the rest of the core. | |
239 | * | |
240 | * This is the same logic as xfs_iflush() but this code can't | |
241 | * run at the same time as xfs_iflush because we're in commit | |
242 | * processing here and so we have the inode lock held in | |
243 | * exclusive mode. Although it doesn't really matter | |
244 | * for the timestamps if both routines were to grab the | |
245 | * timestamps or not. That would be ok. | |
246 | * | |
247 | * We clear i_update_core before copying out the data. | |
248 | * This is for coordination with our timestamp updates | |
249 | * that don't hold the inode lock. They will always | |
250 | * update the timestamps BEFORE setting i_update_core, | |
251 | * so if we clear i_update_core after they set it we | |
252 | * are guaranteed to see their updates to the timestamps | |
253 | * either here. Likewise, if they set it after we clear it | |
254 | * here, we'll see it either on the next commit of this | |
255 | * inode or the next time the inode gets flushed via | |
256 | * xfs_iflush(). This depends on strongly ordered memory | |
257 | * semantics, but we have that. We use the SYNCHRONIZE | |
258 | * macro to make sure that the compiler does not reorder | |
259 | * the i_update_core access below the data copy below. | |
260 | */ | |
261 | if (ip->i_update_core) { | |
262 | ip->i_update_core = 0; | |
263 | SYNCHRONIZE(); | |
264 | } | |
265 | ||
42fe2b1f | 266 | /* |
f9581b14 | 267 | * Make sure to get the latest timestamps from the Linux inode. |
42fe2b1f | 268 | */ |
f9581b14 | 269 | xfs_synchronize_times(ip); |
5d51eff4 | 270 | |
1da177e4 | 271 | vecp->i_addr = (xfs_caddr_t)&ip->i_d; |
81591fe2 | 272 | vecp->i_len = sizeof(struct xfs_icdinode); |
4139b3b3 | 273 | vecp->i_type = XLOG_REG_TYPE_ICORE; |
1da177e4 LT |
274 | vecp++; |
275 | nvecs++; | |
276 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
277 | ||
278 | /* | |
279 | * If this is really an old format inode, then we need to | |
280 | * log it as such. This means that we have to copy the link | |
281 | * count from the new field to the old. We don't have to worry | |
282 | * about the new fields, because nothing trusts them as long as | |
283 | * the old inode version number is there. If the superblock already | |
284 | * has a new version number, then we don't bother converting back. | |
285 | */ | |
286 | mp = ip->i_mount; | |
51ce16d5 CH |
287 | ASSERT(ip->i_d.di_version == 1 || xfs_sb_version_hasnlink(&mp->m_sb)); |
288 | if (ip->i_d.di_version == 1) { | |
62118709 | 289 | if (!xfs_sb_version_hasnlink(&mp->m_sb)) { |
1da177e4 LT |
290 | /* |
291 | * Convert it back. | |
292 | */ | |
293 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
294 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
295 | } else { | |
296 | /* | |
297 | * The superblock version has already been bumped, | |
298 | * so just make the conversion to the new inode | |
299 | * format permanent. | |
300 | */ | |
51ce16d5 | 301 | ip->i_d.di_version = 2; |
1da177e4 LT |
302 | ip->i_d.di_onlink = 0; |
303 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
304 | } | |
305 | } | |
306 | ||
307 | switch (ip->i_d.di_format) { | |
308 | case XFS_DINODE_FMT_EXTENTS: | |
309 | ASSERT(!(iip->ili_format.ilf_fields & | |
310 | (XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
311 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
312 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) { | |
313 | ASSERT(ip->i_df.if_bytes > 0); | |
314 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
315 | ASSERT(ip->i_d.di_nextents > 0); | |
316 | ASSERT(iip->ili_extents_buf == NULL); | |
317 | nrecs = ip->i_df.if_bytes / | |
318 | (uint)sizeof(xfs_bmbt_rec_t); | |
319 | ASSERT(nrecs > 0); | |
f016bad6 | 320 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
321 | if (nrecs == ip->i_d.di_nextents) { |
322 | /* | |
323 | * There are no delayed allocation | |
324 | * extents, so just point to the | |
325 | * real extents array. | |
326 | */ | |
327 | vecp->i_addr = | |
328 | (char *)(ip->i_df.if_u1.if_extents); | |
329 | vecp->i_len = ip->i_df.if_bytes; | |
4139b3b3 | 330 | vecp->i_type = XLOG_REG_TYPE_IEXT; |
1da177e4 LT |
331 | } else |
332 | #endif | |
333 | { | |
334 | /* | |
335 | * There are delayed allocation extents | |
336 | * in the inode, or we need to convert | |
337 | * the extents to on disk format. | |
338 | * Use xfs_iextents_copy() | |
339 | * to copy only the real extents into | |
340 | * a separate buffer. We'll free the | |
341 | * buffer in the unlock routine. | |
342 | */ | |
343 | ext_buffer = kmem_alloc(ip->i_df.if_bytes, | |
344 | KM_SLEEP); | |
345 | iip->ili_extents_buf = ext_buffer; | |
346 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
347 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
348 | XFS_DATA_FORK); | |
4139b3b3 | 349 | vecp->i_type = XLOG_REG_TYPE_IEXT; |
1da177e4 LT |
350 | } |
351 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
352 | iip->ili_format.ilf_dsize = vecp->i_len; | |
353 | vecp++; | |
354 | nvecs++; | |
355 | } | |
356 | break; | |
357 | ||
358 | case XFS_DINODE_FMT_BTREE: | |
359 | ASSERT(!(iip->ili_format.ilf_fields & | |
360 | (XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
361 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
362 | if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) { | |
363 | ASSERT(ip->i_df.if_broot_bytes > 0); | |
364 | ASSERT(ip->i_df.if_broot != NULL); | |
365 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot; | |
366 | vecp->i_len = ip->i_df.if_broot_bytes; | |
4139b3b3 | 367 | vecp->i_type = XLOG_REG_TYPE_IBROOT; |
1da177e4 LT |
368 | vecp++; |
369 | nvecs++; | |
370 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
371 | } | |
372 | break; | |
373 | ||
374 | case XFS_DINODE_FMT_LOCAL: | |
375 | ASSERT(!(iip->ili_format.ilf_fields & | |
376 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
377 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
378 | if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) { | |
379 | ASSERT(ip->i_df.if_bytes > 0); | |
380 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
381 | ASSERT(ip->i_d.di_size > 0); | |
382 | ||
383 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data; | |
384 | /* | |
385 | * Round i_bytes up to a word boundary. | |
386 | * The underlying memory is guaranteed to | |
387 | * to be there by xfs_idata_realloc(). | |
388 | */ | |
389 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
390 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
391 | (ip->i_df.if_real_bytes == data_bytes)); | |
392 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 393 | vecp->i_type = XLOG_REG_TYPE_ILOCAL; |
1da177e4 LT |
394 | vecp++; |
395 | nvecs++; | |
396 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
397 | } | |
398 | break; | |
399 | ||
400 | case XFS_DINODE_FMT_DEV: | |
401 | ASSERT(!(iip->ili_format.ilf_fields & | |
402 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
403 | XFS_ILOG_DDATA | XFS_ILOG_UUID))); | |
404 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) { | |
405 | iip->ili_format.ilf_u.ilfu_rdev = | |
406 | ip->i_df.if_u2.if_rdev; | |
407 | } | |
408 | break; | |
409 | ||
410 | case XFS_DINODE_FMT_UUID: | |
411 | ASSERT(!(iip->ili_format.ilf_fields & | |
412 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
413 | XFS_ILOG_DDATA | XFS_ILOG_DEV))); | |
414 | if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) { | |
415 | iip->ili_format.ilf_u.ilfu_uuid = | |
416 | ip->i_df.if_u2.if_uuid; | |
417 | } | |
418 | break; | |
419 | ||
420 | default: | |
421 | ASSERT(0); | |
422 | break; | |
423 | } | |
424 | ||
425 | /* | |
426 | * If there are no attributes associated with the file, | |
427 | * then we're done. | |
428 | * Assert that no attribute-related log flags are set. | |
429 | */ | |
430 | if (!XFS_IFORK_Q(ip)) { | |
7bfa31d8 | 431 | ASSERT(nvecs == lip->li_desc->lid_size); |
1da177e4 LT |
432 | iip->ili_format.ilf_size = nvecs; |
433 | ASSERT(!(iip->ili_format.ilf_fields & | |
434 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
435 | return; | |
436 | } | |
437 | ||
438 | switch (ip->i_d.di_aformat) { | |
439 | case XFS_DINODE_FMT_EXTENTS: | |
440 | ASSERT(!(iip->ili_format.ilf_fields & | |
441 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT))); | |
442 | if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) { | |
443 | ASSERT(ip->i_afp->if_bytes > 0); | |
444 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
445 | ASSERT(ip->i_d.di_anextents > 0); | |
446 | #ifdef DEBUG | |
447 | nrecs = ip->i_afp->if_bytes / | |
448 | (uint)sizeof(xfs_bmbt_rec_t); | |
449 | #endif | |
450 | ASSERT(nrecs > 0); | |
451 | ASSERT(nrecs == ip->i_d.di_anextents); | |
f016bad6 | 452 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
453 | /* |
454 | * There are not delayed allocation extents | |
455 | * for attributes, so just point at the array. | |
456 | */ | |
457 | vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents); | |
458 | vecp->i_len = ip->i_afp->if_bytes; | |
459 | #else | |
460 | ASSERT(iip->ili_aextents_buf == NULL); | |
461 | /* | |
462 | * Need to endian flip before logging | |
463 | */ | |
464 | ext_buffer = kmem_alloc(ip->i_afp->if_bytes, | |
465 | KM_SLEEP); | |
466 | iip->ili_aextents_buf = ext_buffer; | |
467 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
468 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
469 | XFS_ATTR_FORK); | |
470 | #endif | |
4139b3b3 | 471 | vecp->i_type = XLOG_REG_TYPE_IATTR_EXT; |
1da177e4 LT |
472 | iip->ili_format.ilf_asize = vecp->i_len; |
473 | vecp++; | |
474 | nvecs++; | |
475 | } | |
476 | break; | |
477 | ||
478 | case XFS_DINODE_FMT_BTREE: | |
479 | ASSERT(!(iip->ili_format.ilf_fields & | |
480 | (XFS_ILOG_ADATA | XFS_ILOG_AEXT))); | |
481 | if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) { | |
482 | ASSERT(ip->i_afp->if_broot_bytes > 0); | |
483 | ASSERT(ip->i_afp->if_broot != NULL); | |
484 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot; | |
485 | vecp->i_len = ip->i_afp->if_broot_bytes; | |
4139b3b3 | 486 | vecp->i_type = XLOG_REG_TYPE_IATTR_BROOT; |
1da177e4 LT |
487 | vecp++; |
488 | nvecs++; | |
489 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
490 | } | |
491 | break; | |
492 | ||
493 | case XFS_DINODE_FMT_LOCAL: | |
494 | ASSERT(!(iip->ili_format.ilf_fields & | |
495 | (XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
496 | if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) { | |
497 | ASSERT(ip->i_afp->if_bytes > 0); | |
498 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
499 | ||
500 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data; | |
501 | /* | |
502 | * Round i_bytes up to a word boundary. | |
503 | * The underlying memory is guaranteed to | |
504 | * to be there by xfs_idata_realloc(). | |
505 | */ | |
506 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
507 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
508 | (ip->i_afp->if_real_bytes == data_bytes)); | |
509 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 510 | vecp->i_type = XLOG_REG_TYPE_IATTR_LOCAL; |
1da177e4 LT |
511 | vecp++; |
512 | nvecs++; | |
513 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
514 | } | |
515 | break; | |
516 | ||
517 | default: | |
518 | ASSERT(0); | |
519 | break; | |
520 | } | |
521 | ||
7bfa31d8 | 522 | ASSERT(nvecs == lip->li_desc->lid_size); |
1da177e4 LT |
523 | iip->ili_format.ilf_size = nvecs; |
524 | } | |
525 | ||
526 | ||
527 | /* | |
528 | * This is called to pin the inode associated with the inode log | |
a14a5ab5 | 529 | * item in memory so it cannot be written out. |
1da177e4 LT |
530 | */ |
531 | STATIC void | |
532 | xfs_inode_item_pin( | |
7bfa31d8 | 533 | struct xfs_log_item *lip) |
1da177e4 | 534 | { |
7bfa31d8 | 535 | struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode; |
a14a5ab5 | 536 | |
7bfa31d8 CH |
537 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
538 | ||
539 | trace_xfs_inode_pin(ip, _RET_IP_); | |
540 | atomic_inc(&ip->i_pincount); | |
1da177e4 LT |
541 | } |
542 | ||
543 | ||
544 | /* | |
545 | * This is called to unpin the inode associated with the inode log | |
546 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
a14a5ab5 CH |
547 | * |
548 | * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0. | |
1da177e4 | 549 | */ |
1da177e4 LT |
550 | STATIC void |
551 | xfs_inode_item_unpin( | |
7bfa31d8 | 552 | struct xfs_log_item *lip, |
9412e318 | 553 | int remove) |
1da177e4 | 554 | { |
7bfa31d8 | 555 | struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode; |
a14a5ab5 | 556 | |
4aaf15d1 | 557 | trace_xfs_inode_unpin(ip, _RET_IP_); |
a14a5ab5 CH |
558 | ASSERT(atomic_read(&ip->i_pincount) > 0); |
559 | if (atomic_dec_and_test(&ip->i_pincount)) | |
560 | wake_up(&ip->i_ipin_wait); | |
1da177e4 LT |
561 | } |
562 | ||
1da177e4 LT |
563 | /* |
564 | * This is called to attempt to lock the inode associated with this | |
565 | * inode log item, in preparation for the push routine which does the actual | |
566 | * iflush. Don't sleep on the inode lock or the flush lock. | |
567 | * | |
568 | * If the flush lock is already held, indicating that the inode has | |
569 | * been or is in the process of being flushed, then (ideally) we'd like to | |
570 | * see if the inode's buffer is still incore, and if so give it a nudge. | |
571 | * We delay doing so until the pushbuf routine, though, to avoid holding | |
c41564b5 | 572 | * the AIL lock across a call to the blackhole which is the buffer cache. |
1da177e4 LT |
573 | * Also we don't want to sleep in any device strategy routines, which can happen |
574 | * if we do the subsequent bawrite in here. | |
575 | */ | |
576 | STATIC uint | |
577 | xfs_inode_item_trylock( | |
7bfa31d8 | 578 | struct xfs_log_item *lip) |
1da177e4 | 579 | { |
7bfa31d8 CH |
580 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
581 | struct xfs_inode *ip = iip->ili_inode; | |
1da177e4 | 582 | |
7bfa31d8 | 583 | if (xfs_ipincount(ip) > 0) |
1da177e4 | 584 | return XFS_ITEM_PINNED; |
1da177e4 | 585 | |
7bfa31d8 | 586 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) |
1da177e4 | 587 | return XFS_ITEM_LOCKED; |
1da177e4 LT |
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); | |
7bfa31d8 | 613 | ASSERT(lip->li_flags & XFS_LI_IN_AIL); |
1da177e4 LT |
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( | |
7bfa31d8 | 627 | struct xfs_log_item *lip) |
1da177e4 | 628 | { |
7bfa31d8 CH |
629 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
630 | struct xfs_inode *ip = iip->ili_inode; | |
898621d5 | 631 | unsigned short lock_flags; |
1da177e4 | 632 | |
1da177e4 | 633 | ASSERT(iip->ili_inode->i_itemp != NULL); |
579aa9ca | 634 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
7bfa31d8 | 635 | |
1da177e4 LT |
636 | /* |
637 | * Clear the transaction pointer in the inode. | |
638 | */ | |
1da177e4 LT |
639 | ip->i_transp = NULL; |
640 | ||
641 | /* | |
642 | * If the inode needed a separate buffer with which to log | |
643 | * its extents, then free it now. | |
644 | */ | |
645 | if (iip->ili_extents_buf != NULL) { | |
646 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
647 | ASSERT(ip->i_d.di_nextents > 0); | |
648 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT); | |
649 | ASSERT(ip->i_df.if_bytes > 0); | |
f0e2d93c | 650 | kmem_free(iip->ili_extents_buf); |
1da177e4 LT |
651 | iip->ili_extents_buf = NULL; |
652 | } | |
653 | if (iip->ili_aextents_buf != NULL) { | |
654 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
655 | ASSERT(ip->i_d.di_anextents > 0); | |
656 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT); | |
657 | ASSERT(ip->i_afp->if_bytes > 0); | |
f0e2d93c | 658 | kmem_free(iip->ili_aextents_buf); |
1da177e4 LT |
659 | iip->ili_aextents_buf = NULL; |
660 | } | |
661 | ||
898621d5 CH |
662 | lock_flags = iip->ili_lock_flags; |
663 | iip->ili_lock_flags = 0; | |
664 | if (lock_flags) | |
1da177e4 | 665 | xfs_iput(iip->ili_inode, lock_flags); |
1da177e4 LT |
666 | } |
667 | ||
668 | /* | |
669 | * This is called to find out where the oldest active copy of the | |
670 | * inode log item in the on disk log resides now that the last log | |
671 | * write of it completed at the given lsn. Since we always re-log | |
672 | * all dirty data in an inode, the latest copy in the on disk log | |
673 | * is the only one that matters. Therefore, simply return the | |
674 | * given lsn. | |
675 | */ | |
1da177e4 LT |
676 | STATIC xfs_lsn_t |
677 | xfs_inode_item_committed( | |
7bfa31d8 | 678 | struct xfs_log_item *lip, |
1da177e4 LT |
679 | xfs_lsn_t lsn) |
680 | { | |
7bfa31d8 | 681 | return lsn; |
1da177e4 LT |
682 | } |
683 | ||
1da177e4 LT |
684 | /* |
685 | * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK | |
686 | * failed to get the inode flush lock but did get the inode locked SHARED. | |
687 | * Here we're trying to see if the inode buffer is incore, and if so whether it's | |
d808f617 DC |
688 | * marked delayed write. If that's the case, we'll promote it and that will |
689 | * allow the caller to write the buffer by triggering the xfsbufd to run. | |
1da177e4 LT |
690 | */ |
691 | STATIC void | |
692 | xfs_inode_item_pushbuf( | |
7bfa31d8 | 693 | struct xfs_log_item *lip) |
1da177e4 | 694 | { |
7bfa31d8 CH |
695 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
696 | struct xfs_inode *ip = iip->ili_inode; | |
697 | struct xfs_buf *bp; | |
1da177e4 | 698 | |
579aa9ca | 699 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
1da177e4 | 700 | |
1da177e4 | 701 | /* |
c63942d3 DC |
702 | * If a flush is not in progress anymore, chances are that the |
703 | * inode was taken off the AIL. So, just get out. | |
1da177e4 | 704 | */ |
c63942d3 | 705 | if (completion_done(&ip->i_flush) || |
7bfa31d8 | 706 | !(lip->li_flags & XFS_LI_IN_AIL)) { |
1da177e4 LT |
707 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
708 | return; | |
709 | } | |
710 | ||
7bfa31d8 CH |
711 | bp = xfs_incore(ip->i_mount->m_ddev_targp, iip->ili_format.ilf_blkno, |
712 | iip->ili_format.ilf_len, XBF_TRYLOCK); | |
1da177e4 | 713 | |
1da177e4 | 714 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
d808f617 DC |
715 | if (!bp) |
716 | return; | |
717 | if (XFS_BUF_ISDELAYWRITE(bp)) | |
718 | xfs_buf_delwri_promote(bp); | |
719 | xfs_buf_relse(bp); | |
1da177e4 LT |
720 | } |
721 | ||
1da177e4 LT |
722 | /* |
723 | * This is called to asynchronously write the inode associated with this | |
724 | * inode log item out to disk. The inode will already have been locked by | |
725 | * a successful call to xfs_inode_item_trylock(). | |
726 | */ | |
727 | STATIC void | |
728 | xfs_inode_item_push( | |
7bfa31d8 | 729 | struct xfs_log_item *lip) |
1da177e4 | 730 | { |
7bfa31d8 CH |
731 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
732 | struct xfs_inode *ip = iip->ili_inode; | |
1da177e4 | 733 | |
579aa9ca | 734 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
c63942d3 | 735 | ASSERT(!completion_done(&ip->i_flush)); |
7bfa31d8 | 736 | |
1da177e4 LT |
737 | /* |
738 | * Since we were able to lock the inode's flush lock and | |
739 | * we found it on the AIL, the inode must be dirty. This | |
740 | * is because the inode is removed from the AIL while still | |
741 | * holding the flush lock in xfs_iflush_done(). Thus, if | |
742 | * we found it in the AIL and were able to obtain the flush | |
743 | * lock without sleeping, then there must not have been | |
744 | * anyone in the process of flushing the inode. | |
745 | */ | |
746 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || | |
747 | iip->ili_format.ilf_fields != 0); | |
748 | ||
749 | /* | |
c854363e DC |
750 | * Push the inode to it's backing buffer. This will not remove the |
751 | * inode from the AIL - a further push will be required to trigger a | |
752 | * buffer push. However, this allows all the dirty inodes to be pushed | |
753 | * to the buffer before it is pushed to disk. THe buffer IO completion | |
754 | * will pull th einode from the AIL, mark it clean and unlock the flush | |
755 | * lock. | |
1da177e4 | 756 | */ |
c854363e | 757 | (void) xfs_iflush(ip, 0); |
1da177e4 | 758 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
1da177e4 LT |
759 | } |
760 | ||
761 | /* | |
762 | * XXX rcc - this one really has to do something. Probably needs | |
763 | * to stamp in a new field in the incore inode. | |
764 | */ | |
1da177e4 LT |
765 | STATIC void |
766 | xfs_inode_item_committing( | |
7bfa31d8 | 767 | struct xfs_log_item *lip, |
1da177e4 LT |
768 | xfs_lsn_t lsn) |
769 | { | |
7bfa31d8 | 770 | INODE_ITEM(lip)->ili_last_lsn = lsn; |
1da177e4 LT |
771 | } |
772 | ||
773 | /* | |
774 | * This is the ops vector shared by all buf log items. | |
775 | */ | |
7989cb8e | 776 | static struct xfs_item_ops xfs_inode_item_ops = { |
7bfa31d8 CH |
777 | .iop_size = xfs_inode_item_size, |
778 | .iop_format = xfs_inode_item_format, | |
779 | .iop_pin = xfs_inode_item_pin, | |
780 | .iop_unpin = xfs_inode_item_unpin, | |
781 | .iop_trylock = xfs_inode_item_trylock, | |
782 | .iop_unlock = xfs_inode_item_unlock, | |
783 | .iop_committed = xfs_inode_item_committed, | |
784 | .iop_push = xfs_inode_item_push, | |
785 | .iop_pushbuf = xfs_inode_item_pushbuf, | |
786 | .iop_committing = xfs_inode_item_committing | |
1da177e4 LT |
787 | }; |
788 | ||
789 | ||
790 | /* | |
791 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
792 | */ | |
793 | void | |
794 | xfs_inode_item_init( | |
7bfa31d8 CH |
795 | struct xfs_inode *ip, |
796 | struct xfs_mount *mp) | |
1da177e4 | 797 | { |
7bfa31d8 | 798 | struct xfs_inode_log_item *iip; |
1da177e4 LT |
799 | |
800 | ASSERT(ip->i_itemp == NULL); | |
801 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
802 | ||
1da177e4 | 803 | iip->ili_inode = ip; |
43f5efc5 DC |
804 | xfs_log_item_init(mp, &iip->ili_item, XFS_LI_INODE, |
805 | &xfs_inode_item_ops); | |
1da177e4 LT |
806 | iip->ili_format.ilf_type = XFS_LI_INODE; |
807 | iip->ili_format.ilf_ino = ip->i_ino; | |
92bfc6e7 CH |
808 | iip->ili_format.ilf_blkno = ip->i_imap.im_blkno; |
809 | iip->ili_format.ilf_len = ip->i_imap.im_len; | |
810 | iip->ili_format.ilf_boffset = ip->i_imap.im_boffset; | |
1da177e4 LT |
811 | } |
812 | ||
813 | /* | |
814 | * Free the inode log item and any memory hanging off of it. | |
815 | */ | |
816 | void | |
817 | xfs_inode_item_destroy( | |
818 | xfs_inode_t *ip) | |
819 | { | |
820 | #ifdef XFS_TRANS_DEBUG | |
821 | if (ip->i_itemp->ili_root_size != 0) { | |
f0e2d93c | 822 | kmem_free(ip->i_itemp->ili_orig_root); |
1da177e4 LT |
823 | } |
824 | #endif | |
825 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
826 | } | |
827 | ||
828 | ||
829 | /* | |
830 | * This is the inode flushing I/O completion routine. It is called | |
831 | * from interrupt level when the buffer containing the inode is | |
832 | * flushed to disk. It is responsible for removing the inode item | |
833 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
834 | * flush lock. | |
835 | */ | |
1da177e4 LT |
836 | void |
837 | xfs_iflush_done( | |
ca30b2a7 CH |
838 | struct xfs_buf *bp, |
839 | struct xfs_log_item *lip) | |
1da177e4 | 840 | { |
ca30b2a7 | 841 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
783a2f65 | 842 | xfs_inode_t *ip = iip->ili_inode; |
ca30b2a7 | 843 | struct xfs_ail *ailp = lip->li_ailp; |
1da177e4 LT |
844 | |
845 | /* | |
846 | * We only want to pull the item from the AIL if it is | |
847 | * actually there and its location in the log has not | |
848 | * changed since we started the flush. Thus, we only bother | |
849 | * if the ili_logged flag is set and the inode's lsn has not | |
850 | * changed. First we check the lsn outside | |
851 | * the lock since it's cheaper, and then we recheck while | |
852 | * holding the lock before removing the inode from the AIL. | |
853 | */ | |
ca30b2a7 | 854 | if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) { |
783a2f65 | 855 | spin_lock(&ailp->xa_lock); |
ca30b2a7 | 856 | if (lip->li_lsn == iip->ili_flush_lsn) { |
783a2f65 | 857 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
ca30b2a7 | 858 | xfs_trans_ail_delete(ailp, lip); |
1da177e4 | 859 | } else { |
783a2f65 | 860 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
861 | } |
862 | } | |
863 | ||
864 | iip->ili_logged = 0; | |
865 | ||
866 | /* | |
867 | * Clear the ili_last_fields bits now that we know that the | |
868 | * data corresponding to them is safely on disk. | |
869 | */ | |
870 | iip->ili_last_fields = 0; | |
871 | ||
872 | /* | |
873 | * Release the inode's flush lock since we're done with it. | |
874 | */ | |
875 | xfs_ifunlock(ip); | |
1da177e4 LT |
876 | } |
877 | ||
878 | /* | |
879 | * This is the inode flushing abort routine. It is called | |
880 | * from xfs_iflush when the filesystem is shutting down to clean | |
881 | * up the inode state. | |
882 | * It is responsible for removing the inode item | |
883 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
884 | * flush lock. | |
885 | */ | |
886 | void | |
887 | xfs_iflush_abort( | |
888 | xfs_inode_t *ip) | |
889 | { | |
783a2f65 | 890 | xfs_inode_log_item_t *iip = ip->i_itemp; |
1da177e4 | 891 | xfs_mount_t *mp; |
1da177e4 LT |
892 | |
893 | iip = ip->i_itemp; | |
894 | mp = ip->i_mount; | |
895 | if (iip) { | |
783a2f65 | 896 | struct xfs_ail *ailp = iip->ili_item.li_ailp; |
1da177e4 | 897 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 898 | spin_lock(&ailp->xa_lock); |
1da177e4 | 899 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 DC |
900 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
901 | xfs_trans_ail_delete(ailp, (xfs_log_item_t *)iip); | |
1da177e4 | 902 | } else |
783a2f65 | 903 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
904 | } |
905 | iip->ili_logged = 0; | |
906 | /* | |
907 | * Clear the ili_last_fields bits now that we know that the | |
908 | * data corresponding to them is safely on disk. | |
909 | */ | |
910 | iip->ili_last_fields = 0; | |
911 | /* | |
912 | * Clear the inode logging fields so no more flushes are | |
913 | * attempted. | |
914 | */ | |
915 | iip->ili_format.ilf_fields = 0; | |
916 | } | |
917 | /* | |
918 | * Release the inode's flush lock since we're done with it. | |
919 | */ | |
920 | xfs_ifunlock(ip); | |
921 | } | |
922 | ||
923 | void | |
924 | xfs_istale_done( | |
ca30b2a7 CH |
925 | struct xfs_buf *bp, |
926 | struct xfs_log_item *lip) | |
1da177e4 | 927 | { |
ca30b2a7 | 928 | xfs_iflush_abort(INODE_ITEM(lip)->ili_inode); |
1da177e4 | 929 | } |
6d192a9b TS |
930 | |
931 | /* | |
932 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
933 | * (which can have different field alignments) to the native version | |
934 | */ | |
935 | int | |
936 | xfs_inode_item_format_convert( | |
937 | xfs_log_iovec_t *buf, | |
938 | xfs_inode_log_format_t *in_f) | |
939 | { | |
940 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
941 | xfs_inode_log_format_32_t *in_f32; | |
942 | ||
943 | in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr; | |
944 | in_f->ilf_type = in_f32->ilf_type; | |
945 | in_f->ilf_size = in_f32->ilf_size; | |
946 | in_f->ilf_fields = in_f32->ilf_fields; | |
947 | in_f->ilf_asize = in_f32->ilf_asize; | |
948 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
949 | in_f->ilf_ino = in_f32->ilf_ino; | |
950 | /* copy biggest field of ilf_u */ | |
951 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
952 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
953 | sizeof(uuid_t)); | |
954 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
955 | in_f->ilf_len = in_f32->ilf_len; | |
956 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
957 | return 0; | |
958 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
959 | xfs_inode_log_format_64_t *in_f64; | |
960 | ||
961 | in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr; | |
962 | in_f->ilf_type = in_f64->ilf_type; | |
963 | in_f->ilf_size = in_f64->ilf_size; | |
964 | in_f->ilf_fields = in_f64->ilf_fields; | |
965 | in_f->ilf_asize = in_f64->ilf_asize; | |
966 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
967 | in_f->ilf_ino = in_f64->ilf_ino; | |
968 | /* copy biggest field of ilf_u */ | |
969 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
970 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
971 | sizeof(uuid_t)); | |
972 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
973 | in_f->ilf_len = in_f64->ilf_len; | |
974 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
975 | return 0; | |
976 | } | |
977 | return EFSCORRUPTED; | |
978 | } |