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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 LT |
24 | #include "xfs_trans.h" |
25 | #include "xfs_buf_item.h" | |
26 | #include "xfs_sb.h" | |
a844f451 | 27 | #include "xfs_ag.h" |
1da177e4 LT |
28 | #include "xfs_dir2.h" |
29 | #include "xfs_dmapi.h" | |
30 | #include "xfs_mount.h" | |
31 | #include "xfs_trans_priv.h" | |
1da177e4 | 32 | #include "xfs_bmap_btree.h" |
a844f451 | 33 | #include "xfs_alloc_btree.h" |
1da177e4 | 34 | #include "xfs_ialloc_btree.h" |
1da177e4 | 35 | #include "xfs_dir2_sf.h" |
a844f451 | 36 | #include "xfs_attr_sf.h" |
1da177e4 | 37 | #include "xfs_dinode.h" |
1da177e4 | 38 | #include "xfs_inode.h" |
a844f451 NS |
39 | #include "xfs_inode_item.h" |
40 | #include "xfs_btree.h" | |
41 | #include "xfs_ialloc.h" | |
1da177e4 LT |
42 | #include "xfs_rw.h" |
43 | ||
44 | ||
45 | kmem_zone_t *xfs_ili_zone; /* inode log item zone */ | |
46 | ||
47 | /* | |
48 | * This returns the number of iovecs needed to log the given inode item. | |
49 | * | |
50 | * We need one iovec for the inode log format structure, one for the | |
51 | * inode core, and possibly one for the inode data/extents/b-tree root | |
52 | * and one for the inode attribute data/extents/b-tree root. | |
53 | */ | |
54 | STATIC uint | |
55 | xfs_inode_item_size( | |
56 | xfs_inode_log_item_t *iip) | |
57 | { | |
58 | uint nvecs; | |
59 | xfs_inode_t *ip; | |
60 | ||
61 | ip = iip->ili_inode; | |
62 | nvecs = 2; | |
63 | ||
64 | /* | |
65 | * Only log the data/extents/b-tree root if there is something | |
66 | * left to log. | |
67 | */ | |
68 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
69 | ||
70 | switch (ip->i_d.di_format) { | |
71 | case XFS_DINODE_FMT_EXTENTS: | |
72 | iip->ili_format.ilf_fields &= | |
73 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
74 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
75 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DEXT) && | |
76 | (ip->i_d.di_nextents > 0) && | |
77 | (ip->i_df.if_bytes > 0)) { | |
78 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
79 | nvecs++; | |
80 | } else { | |
81 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DEXT; | |
82 | } | |
83 | break; | |
84 | ||
85 | case XFS_DINODE_FMT_BTREE: | |
86 | ASSERT(ip->i_df.if_ext_max == | |
87 | XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t)); | |
88 | iip->ili_format.ilf_fields &= | |
89 | ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
90 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
91 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) && | |
92 | (ip->i_df.if_broot_bytes > 0)) { | |
93 | ASSERT(ip->i_df.if_broot != NULL); | |
94 | nvecs++; | |
95 | } else { | |
96 | ASSERT(!(iip->ili_format.ilf_fields & | |
97 | XFS_ILOG_DBROOT)); | |
98 | #ifdef XFS_TRANS_DEBUG | |
99 | if (iip->ili_root_size > 0) { | |
100 | ASSERT(iip->ili_root_size == | |
101 | ip->i_df.if_broot_bytes); | |
102 | ASSERT(memcmp(iip->ili_orig_root, | |
103 | ip->i_df.if_broot, | |
104 | iip->ili_root_size) == 0); | |
105 | } else { | |
106 | ASSERT(ip->i_df.if_broot_bytes == 0); | |
107 | } | |
108 | #endif | |
109 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DBROOT; | |
110 | } | |
111 | break; | |
112 | ||
113 | case XFS_DINODE_FMT_LOCAL: | |
114 | iip->ili_format.ilf_fields &= | |
115 | ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | | |
116 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
117 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DDATA) && | |
118 | (ip->i_df.if_bytes > 0)) { | |
119 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
120 | ASSERT(ip->i_d.di_size > 0); | |
121 | nvecs++; | |
122 | } else { | |
123 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DDATA; | |
124 | } | |
125 | break; | |
126 | ||
127 | case XFS_DINODE_FMT_DEV: | |
128 | iip->ili_format.ilf_fields &= | |
129 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
130 | XFS_ILOG_DEXT | XFS_ILOG_UUID); | |
131 | break; | |
132 | ||
133 | case XFS_DINODE_FMT_UUID: | |
134 | iip->ili_format.ilf_fields &= | |
135 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
136 | XFS_ILOG_DEXT | XFS_ILOG_DEV); | |
137 | break; | |
138 | ||
139 | default: | |
140 | ASSERT(0); | |
141 | break; | |
142 | } | |
143 | ||
144 | /* | |
145 | * If there are no attributes associated with this file, | |
146 | * then there cannot be anything more to log. | |
147 | * Clear all attribute-related log flags. | |
148 | */ | |
149 | if (!XFS_IFORK_Q(ip)) { | |
150 | iip->ili_format.ilf_fields &= | |
151 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT); | |
152 | return nvecs; | |
153 | } | |
154 | ||
155 | /* | |
156 | * Log any necessary attribute data. | |
157 | */ | |
158 | switch (ip->i_d.di_aformat) { | |
159 | case XFS_DINODE_FMT_EXTENTS: | |
160 | iip->ili_format.ilf_fields &= | |
161 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT); | |
162 | if ((iip->ili_format.ilf_fields & XFS_ILOG_AEXT) && | |
163 | (ip->i_d.di_anextents > 0) && | |
164 | (ip->i_afp->if_bytes > 0)) { | |
165 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
166 | nvecs++; | |
167 | } else { | |
168 | iip->ili_format.ilf_fields &= ~XFS_ILOG_AEXT; | |
169 | } | |
170 | break; | |
171 | ||
172 | case XFS_DINODE_FMT_BTREE: | |
173 | iip->ili_format.ilf_fields &= | |
174 | ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT); | |
175 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) && | |
176 | (ip->i_afp->if_broot_bytes > 0)) { | |
177 | ASSERT(ip->i_afp->if_broot != NULL); | |
178 | nvecs++; | |
179 | } else { | |
180 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ABROOT; | |
181 | } | |
182 | break; | |
183 | ||
184 | case XFS_DINODE_FMT_LOCAL: | |
185 | iip->ili_format.ilf_fields &= | |
186 | ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT); | |
187 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ADATA) && | |
188 | (ip->i_afp->if_bytes > 0)) { | |
189 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
190 | nvecs++; | |
191 | } else { | |
192 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ADATA; | |
193 | } | |
194 | break; | |
195 | ||
196 | default: | |
197 | ASSERT(0); | |
198 | break; | |
199 | } | |
200 | ||
201 | return nvecs; | |
202 | } | |
203 | ||
204 | /* | |
205 | * This is called to fill in the vector of log iovecs for the | |
206 | * given inode log item. It fills the first item with an inode | |
207 | * log format structure, the second with the on-disk inode structure, | |
208 | * and a possible third and/or fourth with the inode data/extents/b-tree | |
209 | * root and inode attributes data/extents/b-tree root. | |
210 | */ | |
211 | STATIC void | |
212 | xfs_inode_item_format( | |
213 | xfs_inode_log_item_t *iip, | |
214 | xfs_log_iovec_t *log_vector) | |
215 | { | |
216 | uint nvecs; | |
217 | xfs_log_iovec_t *vecp; | |
218 | xfs_inode_t *ip; | |
219 | size_t data_bytes; | |
220 | xfs_bmbt_rec_t *ext_buffer; | |
221 | int nrecs; | |
222 | xfs_mount_t *mp; | |
223 | ||
224 | ip = iip->ili_inode; | |
225 | vecp = log_vector; | |
226 | ||
227 | vecp->i_addr = (xfs_caddr_t)&iip->ili_format; | |
228 | vecp->i_len = sizeof(xfs_inode_log_format_t); | |
7e9c6396 | 229 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IFORMAT); |
1da177e4 LT |
230 | vecp++; |
231 | nvecs = 1; | |
232 | ||
233 | /* | |
234 | * Clear i_update_core if the timestamps (or any other | |
235 | * non-transactional modification) need flushing/logging | |
236 | * and we're about to log them with the rest of the core. | |
237 | * | |
238 | * This is the same logic as xfs_iflush() but this code can't | |
239 | * run at the same time as xfs_iflush because we're in commit | |
240 | * processing here and so we have the inode lock held in | |
241 | * exclusive mode. Although it doesn't really matter | |
242 | * for the timestamps if both routines were to grab the | |
243 | * timestamps or not. That would be ok. | |
244 | * | |
245 | * We clear i_update_core before copying out the data. | |
246 | * This is for coordination with our timestamp updates | |
247 | * that don't hold the inode lock. They will always | |
248 | * update the timestamps BEFORE setting i_update_core, | |
249 | * so if we clear i_update_core after they set it we | |
250 | * are guaranteed to see their updates to the timestamps | |
251 | * either here. Likewise, if they set it after we clear it | |
252 | * here, we'll see it either on the next commit of this | |
253 | * inode or the next time the inode gets flushed via | |
254 | * xfs_iflush(). This depends on strongly ordered memory | |
255 | * semantics, but we have that. We use the SYNCHRONIZE | |
256 | * macro to make sure that the compiler does not reorder | |
257 | * the i_update_core access below the data copy below. | |
258 | */ | |
259 | if (ip->i_update_core) { | |
260 | ip->i_update_core = 0; | |
261 | SYNCHRONIZE(); | |
262 | } | |
263 | ||
264 | /* | |
265 | * We don't have to worry about re-ordering here because | |
266 | * the update_size field is protected by the inode lock | |
267 | * and we have that held in exclusive mode. | |
268 | */ | |
269 | if (ip->i_update_size) | |
270 | ip->i_update_size = 0; | |
271 | ||
42fe2b1f CH |
272 | /* |
273 | * Make sure to get the latest atime from the Linux inode. | |
274 | */ | |
275 | xfs_synchronize_atime(ip); | |
276 | ||
1da177e4 LT |
277 | vecp->i_addr = (xfs_caddr_t)&ip->i_d; |
278 | vecp->i_len = sizeof(xfs_dinode_core_t); | |
7e9c6396 | 279 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE); |
1da177e4 LT |
280 | vecp++; |
281 | nvecs++; | |
282 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
283 | ||
284 | /* | |
285 | * If this is really an old format inode, then we need to | |
286 | * log it as such. This means that we have to copy the link | |
287 | * count from the new field to the old. We don't have to worry | |
288 | * about the new fields, because nothing trusts them as long as | |
289 | * the old inode version number is there. If the superblock already | |
290 | * has a new version number, then we don't bother converting back. | |
291 | */ | |
292 | mp = ip->i_mount; | |
293 | ASSERT(ip->i_d.di_version == XFS_DINODE_VERSION_1 || | |
294 | XFS_SB_VERSION_HASNLINK(&mp->m_sb)); | |
295 | if (ip->i_d.di_version == XFS_DINODE_VERSION_1) { | |
296 | if (!XFS_SB_VERSION_HASNLINK(&mp->m_sb)) { | |
297 | /* | |
298 | * Convert it back. | |
299 | */ | |
300 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
301 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
302 | } else { | |
303 | /* | |
304 | * The superblock version has already been bumped, | |
305 | * so just make the conversion to the new inode | |
306 | * format permanent. | |
307 | */ | |
308 | ip->i_d.di_version = XFS_DINODE_VERSION_2; | |
309 | ip->i_d.di_onlink = 0; | |
310 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
311 | } | |
312 | } | |
313 | ||
314 | switch (ip->i_d.di_format) { | |
315 | case XFS_DINODE_FMT_EXTENTS: | |
316 | ASSERT(!(iip->ili_format.ilf_fields & | |
317 | (XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
318 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
319 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) { | |
320 | ASSERT(ip->i_df.if_bytes > 0); | |
321 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
322 | ASSERT(ip->i_d.di_nextents > 0); | |
323 | ASSERT(iip->ili_extents_buf == NULL); | |
324 | nrecs = ip->i_df.if_bytes / | |
325 | (uint)sizeof(xfs_bmbt_rec_t); | |
326 | ASSERT(nrecs > 0); | |
f016bad6 | 327 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
328 | if (nrecs == ip->i_d.di_nextents) { |
329 | /* | |
330 | * There are no delayed allocation | |
331 | * extents, so just point to the | |
332 | * real extents array. | |
333 | */ | |
334 | vecp->i_addr = | |
335 | (char *)(ip->i_df.if_u1.if_extents); | |
336 | vecp->i_len = ip->i_df.if_bytes; | |
7e9c6396 | 337 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
338 | } else |
339 | #endif | |
340 | { | |
341 | /* | |
342 | * There are delayed allocation extents | |
343 | * in the inode, or we need to convert | |
344 | * the extents to on disk format. | |
345 | * Use xfs_iextents_copy() | |
346 | * to copy only the real extents into | |
347 | * a separate buffer. We'll free the | |
348 | * buffer in the unlock routine. | |
349 | */ | |
350 | ext_buffer = kmem_alloc(ip->i_df.if_bytes, | |
351 | KM_SLEEP); | |
352 | iip->ili_extents_buf = ext_buffer; | |
353 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
354 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
355 | XFS_DATA_FORK); | |
7e9c6396 | 356 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
357 | } |
358 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
359 | iip->ili_format.ilf_dsize = vecp->i_len; | |
360 | vecp++; | |
361 | nvecs++; | |
362 | } | |
363 | break; | |
364 | ||
365 | case XFS_DINODE_FMT_BTREE: | |
366 | ASSERT(!(iip->ili_format.ilf_fields & | |
367 | (XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
368 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
369 | if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) { | |
370 | ASSERT(ip->i_df.if_broot_bytes > 0); | |
371 | ASSERT(ip->i_df.if_broot != NULL); | |
372 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot; | |
373 | vecp->i_len = ip->i_df.if_broot_bytes; | |
7e9c6396 | 374 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IBROOT); |
1da177e4 LT |
375 | vecp++; |
376 | nvecs++; | |
377 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
378 | } | |
379 | break; | |
380 | ||
381 | case XFS_DINODE_FMT_LOCAL: | |
382 | ASSERT(!(iip->ili_format.ilf_fields & | |
383 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
384 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
385 | if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) { | |
386 | ASSERT(ip->i_df.if_bytes > 0); | |
387 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
388 | ASSERT(ip->i_d.di_size > 0); | |
389 | ||
390 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data; | |
391 | /* | |
392 | * Round i_bytes up to a word boundary. | |
393 | * The underlying memory is guaranteed to | |
394 | * to be there by xfs_idata_realloc(). | |
395 | */ | |
396 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
397 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
398 | (ip->i_df.if_real_bytes == data_bytes)); | |
399 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 400 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ILOCAL); |
1da177e4 LT |
401 | vecp++; |
402 | nvecs++; | |
403 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
404 | } | |
405 | break; | |
406 | ||
407 | case XFS_DINODE_FMT_DEV: | |
408 | ASSERT(!(iip->ili_format.ilf_fields & | |
409 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
410 | XFS_ILOG_DDATA | XFS_ILOG_UUID))); | |
411 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) { | |
412 | iip->ili_format.ilf_u.ilfu_rdev = | |
413 | ip->i_df.if_u2.if_rdev; | |
414 | } | |
415 | break; | |
416 | ||
417 | case XFS_DINODE_FMT_UUID: | |
418 | ASSERT(!(iip->ili_format.ilf_fields & | |
419 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
420 | XFS_ILOG_DDATA | XFS_ILOG_DEV))); | |
421 | if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) { | |
422 | iip->ili_format.ilf_u.ilfu_uuid = | |
423 | ip->i_df.if_u2.if_uuid; | |
424 | } | |
425 | break; | |
426 | ||
427 | default: | |
428 | ASSERT(0); | |
429 | break; | |
430 | } | |
431 | ||
432 | /* | |
433 | * If there are no attributes associated with the file, | |
434 | * then we're done. | |
435 | * Assert that no attribute-related log flags are set. | |
436 | */ | |
437 | if (!XFS_IFORK_Q(ip)) { | |
438 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
439 | iip->ili_format.ilf_size = nvecs; | |
440 | ASSERT(!(iip->ili_format.ilf_fields & | |
441 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
442 | return; | |
443 | } | |
444 | ||
445 | switch (ip->i_d.di_aformat) { | |
446 | case XFS_DINODE_FMT_EXTENTS: | |
447 | ASSERT(!(iip->ili_format.ilf_fields & | |
448 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT))); | |
449 | if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) { | |
450 | ASSERT(ip->i_afp->if_bytes > 0); | |
451 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
452 | ASSERT(ip->i_d.di_anextents > 0); | |
453 | #ifdef DEBUG | |
454 | nrecs = ip->i_afp->if_bytes / | |
455 | (uint)sizeof(xfs_bmbt_rec_t); | |
456 | #endif | |
457 | ASSERT(nrecs > 0); | |
458 | ASSERT(nrecs == ip->i_d.di_anextents); | |
f016bad6 | 459 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
460 | /* |
461 | * There are not delayed allocation extents | |
462 | * for attributes, so just point at the array. | |
463 | */ | |
464 | vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents); | |
465 | vecp->i_len = ip->i_afp->if_bytes; | |
466 | #else | |
467 | ASSERT(iip->ili_aextents_buf == NULL); | |
468 | /* | |
469 | * Need to endian flip before logging | |
470 | */ | |
471 | ext_buffer = kmem_alloc(ip->i_afp->if_bytes, | |
472 | KM_SLEEP); | |
473 | iip->ili_aextents_buf = ext_buffer; | |
474 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
475 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
476 | XFS_ATTR_FORK); | |
477 | #endif | |
7e9c6396 | 478 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_EXT); |
1da177e4 LT |
479 | iip->ili_format.ilf_asize = vecp->i_len; |
480 | vecp++; | |
481 | nvecs++; | |
482 | } | |
483 | break; | |
484 | ||
485 | case XFS_DINODE_FMT_BTREE: | |
486 | ASSERT(!(iip->ili_format.ilf_fields & | |
487 | (XFS_ILOG_ADATA | XFS_ILOG_AEXT))); | |
488 | if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) { | |
489 | ASSERT(ip->i_afp->if_broot_bytes > 0); | |
490 | ASSERT(ip->i_afp->if_broot != NULL); | |
491 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot; | |
492 | vecp->i_len = ip->i_afp->if_broot_bytes; | |
7e9c6396 | 493 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_BROOT); |
1da177e4 LT |
494 | vecp++; |
495 | nvecs++; | |
496 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
497 | } | |
498 | break; | |
499 | ||
500 | case XFS_DINODE_FMT_LOCAL: | |
501 | ASSERT(!(iip->ili_format.ilf_fields & | |
502 | (XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
503 | if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) { | |
504 | ASSERT(ip->i_afp->if_bytes > 0); | |
505 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
506 | ||
507 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data; | |
508 | /* | |
509 | * Round i_bytes up to a word boundary. | |
510 | * The underlying memory is guaranteed to | |
511 | * to be there by xfs_idata_realloc(). | |
512 | */ | |
513 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
514 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
515 | (ip->i_afp->if_real_bytes == data_bytes)); | |
516 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 517 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_LOCAL); |
1da177e4 LT |
518 | vecp++; |
519 | nvecs++; | |
520 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
521 | } | |
522 | break; | |
523 | ||
524 | default: | |
525 | ASSERT(0); | |
526 | break; | |
527 | } | |
528 | ||
529 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
530 | iip->ili_format.ilf_size = nvecs; | |
531 | } | |
532 | ||
533 | ||
534 | /* | |
535 | * This is called to pin the inode associated with the inode log | |
536 | * item in memory so it cannot be written out. Do this by calling | |
537 | * xfs_ipin() to bump the pin count in the inode while holding the | |
538 | * inode pin lock. | |
539 | */ | |
540 | STATIC void | |
541 | xfs_inode_item_pin( | |
542 | xfs_inode_log_item_t *iip) | |
543 | { | |
544 | ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE)); | |
545 | xfs_ipin(iip->ili_inode); | |
546 | } | |
547 | ||
548 | ||
549 | /* | |
550 | * This is called to unpin the inode associated with the inode log | |
551 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
552 | * Just call xfs_iunpin() on the inode to do this. | |
553 | */ | |
554 | /* ARGSUSED */ | |
555 | STATIC void | |
556 | xfs_inode_item_unpin( | |
557 | xfs_inode_log_item_t *iip, | |
558 | int stale) | |
559 | { | |
560 | xfs_iunpin(iip->ili_inode); | |
561 | } | |
562 | ||
563 | /* ARGSUSED */ | |
564 | STATIC void | |
565 | xfs_inode_item_unpin_remove( | |
566 | xfs_inode_log_item_t *iip, | |
567 | xfs_trans_t *tp) | |
568 | { | |
569 | xfs_iunpin(iip->ili_inode); | |
570 | } | |
571 | ||
572 | /* | |
573 | * This is called to attempt to lock the inode associated with this | |
574 | * inode log item, in preparation for the push routine which does the actual | |
575 | * iflush. Don't sleep on the inode lock or the flush lock. | |
576 | * | |
577 | * If the flush lock is already held, indicating that the inode has | |
578 | * been or is in the process of being flushed, then (ideally) we'd like to | |
579 | * see if the inode's buffer is still incore, and if so give it a nudge. | |
580 | * We delay doing so until the pushbuf routine, though, to avoid holding | |
c41564b5 | 581 | * the AIL lock across a call to the blackhole which is the buffer cache. |
1da177e4 LT |
582 | * Also we don't want to sleep in any device strategy routines, which can happen |
583 | * if we do the subsequent bawrite in here. | |
584 | */ | |
585 | STATIC uint | |
586 | xfs_inode_item_trylock( | |
587 | xfs_inode_log_item_t *iip) | |
588 | { | |
589 | register xfs_inode_t *ip; | |
590 | ||
591 | ip = iip->ili_inode; | |
592 | ||
593 | if (xfs_ipincount(ip) > 0) { | |
594 | return XFS_ITEM_PINNED; | |
595 | } | |
596 | ||
597 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) { | |
598 | return XFS_ITEM_LOCKED; | |
599 | } | |
600 | ||
601 | if (!xfs_iflock_nowait(ip)) { | |
602 | /* | |
603 | * If someone else isn't already trying to push the inode | |
604 | * buffer, we get to do it. | |
605 | */ | |
606 | if (iip->ili_pushbuf_flag == 0) { | |
607 | iip->ili_pushbuf_flag = 1; | |
608 | #ifdef DEBUG | |
3762ec6b | 609 | iip->ili_push_owner = current_pid(); |
1da177e4 LT |
610 | #endif |
611 | /* | |
612 | * Inode is left locked in shared mode. | |
613 | * Pushbuf routine gets to unlock it. | |
614 | */ | |
615 | return XFS_ITEM_PUSHBUF; | |
616 | } else { | |
617 | /* | |
618 | * We hold the AIL_LOCK, so we must specify the | |
619 | * NONOTIFY flag so that we won't double trip. | |
620 | */ | |
621 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
622 | return XFS_ITEM_FLUSHING; | |
623 | } | |
624 | /* NOTREACHED */ | |
625 | } | |
626 | ||
627 | /* Stale items should force out the iclog */ | |
628 | if (ip->i_flags & XFS_ISTALE) { | |
629 | xfs_ifunlock(ip); | |
630 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
631 | return XFS_ITEM_PINNED; | |
632 | } | |
633 | ||
634 | #ifdef DEBUG | |
635 | if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) { | |
636 | ASSERT(iip->ili_format.ilf_fields != 0); | |
637 | ASSERT(iip->ili_logged == 0); | |
638 | ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL); | |
639 | } | |
640 | #endif | |
641 | return XFS_ITEM_SUCCESS; | |
642 | } | |
643 | ||
644 | /* | |
645 | * Unlock the inode associated with the inode log item. | |
646 | * Clear the fields of the inode and inode log item that | |
647 | * are specific to the current transaction. If the | |
648 | * hold flags is set, do not unlock the inode. | |
649 | */ | |
650 | STATIC void | |
651 | xfs_inode_item_unlock( | |
652 | xfs_inode_log_item_t *iip) | |
653 | { | |
654 | uint hold; | |
655 | uint iolocked; | |
656 | uint lock_flags; | |
657 | xfs_inode_t *ip; | |
658 | ||
659 | ASSERT(iip != NULL); | |
660 | ASSERT(iip->ili_inode->i_itemp != NULL); | |
661 | ASSERT(ismrlocked(&(iip->ili_inode->i_lock), MR_UPDATE)); | |
662 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & | |
663 | XFS_ILI_IOLOCKED_EXCL)) || | |
664 | ismrlocked(&(iip->ili_inode->i_iolock), MR_UPDATE)); | |
665 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & | |
666 | XFS_ILI_IOLOCKED_SHARED)) || | |
667 | ismrlocked(&(iip->ili_inode->i_iolock), MR_ACCESS)); | |
668 | /* | |
669 | * Clear the transaction pointer in the inode. | |
670 | */ | |
671 | ip = iip->ili_inode; | |
672 | ip->i_transp = NULL; | |
673 | ||
674 | /* | |
675 | * If the inode needed a separate buffer with which to log | |
676 | * its extents, then free it now. | |
677 | */ | |
678 | if (iip->ili_extents_buf != NULL) { | |
679 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
680 | ASSERT(ip->i_d.di_nextents > 0); | |
681 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT); | |
682 | ASSERT(ip->i_df.if_bytes > 0); | |
683 | kmem_free(iip->ili_extents_buf, ip->i_df.if_bytes); | |
684 | iip->ili_extents_buf = NULL; | |
685 | } | |
686 | if (iip->ili_aextents_buf != NULL) { | |
687 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
688 | ASSERT(ip->i_d.di_anextents > 0); | |
689 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT); | |
690 | ASSERT(ip->i_afp->if_bytes > 0); | |
691 | kmem_free(iip->ili_aextents_buf, ip->i_afp->if_bytes); | |
692 | iip->ili_aextents_buf = NULL; | |
693 | } | |
694 | ||
695 | /* | |
696 | * Figure out if we should unlock the inode or not. | |
697 | */ | |
698 | hold = iip->ili_flags & XFS_ILI_HOLD; | |
699 | ||
700 | /* | |
701 | * Before clearing out the flags, remember whether we | |
702 | * are holding the inode's IO lock. | |
703 | */ | |
704 | iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY; | |
705 | ||
706 | /* | |
707 | * Clear out the fields of the inode log item particular | |
708 | * to the current transaction. | |
709 | */ | |
710 | iip->ili_ilock_recur = 0; | |
711 | iip->ili_iolock_recur = 0; | |
712 | iip->ili_flags = 0; | |
713 | ||
714 | /* | |
715 | * Unlock the inode if XFS_ILI_HOLD was not set. | |
716 | */ | |
717 | if (!hold) { | |
718 | lock_flags = XFS_ILOCK_EXCL; | |
719 | if (iolocked & XFS_ILI_IOLOCKED_EXCL) { | |
720 | lock_flags |= XFS_IOLOCK_EXCL; | |
721 | } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) { | |
722 | lock_flags |= XFS_IOLOCK_SHARED; | |
723 | } | |
724 | xfs_iput(iip->ili_inode, lock_flags); | |
725 | } | |
726 | } | |
727 | ||
728 | /* | |
729 | * This is called to find out where the oldest active copy of the | |
730 | * inode log item in the on disk log resides now that the last log | |
731 | * write of it completed at the given lsn. Since we always re-log | |
732 | * all dirty data in an inode, the latest copy in the on disk log | |
733 | * is the only one that matters. Therefore, simply return the | |
734 | * given lsn. | |
735 | */ | |
736 | /*ARGSUSED*/ | |
737 | STATIC xfs_lsn_t | |
738 | xfs_inode_item_committed( | |
739 | xfs_inode_log_item_t *iip, | |
740 | xfs_lsn_t lsn) | |
741 | { | |
742 | return (lsn); | |
743 | } | |
744 | ||
1da177e4 LT |
745 | /* |
746 | * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK | |
747 | * failed to get the inode flush lock but did get the inode locked SHARED. | |
748 | * Here we're trying to see if the inode buffer is incore, and if so whether it's | |
749 | * marked delayed write. If that's the case, we'll initiate a bawrite on that | |
750 | * buffer to expedite the process. | |
751 | * | |
752 | * We aren't holding the AIL_LOCK (or the flush lock) when this gets called, | |
753 | * so it is inherently race-y. | |
754 | */ | |
755 | STATIC void | |
756 | xfs_inode_item_pushbuf( | |
757 | xfs_inode_log_item_t *iip) | |
758 | { | |
759 | xfs_inode_t *ip; | |
760 | xfs_mount_t *mp; | |
761 | xfs_buf_t *bp; | |
762 | uint dopush; | |
763 | ||
764 | ip = iip->ili_inode; | |
765 | ||
766 | ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS)); | |
767 | ||
768 | /* | |
769 | * The ili_pushbuf_flag keeps others from | |
770 | * trying to duplicate our effort. | |
771 | */ | |
772 | ASSERT(iip->ili_pushbuf_flag != 0); | |
3762ec6b | 773 | ASSERT(iip->ili_push_owner == current_pid()); |
1da177e4 LT |
774 | |
775 | /* | |
776 | * If flushlock isn't locked anymore, chances are that the | |
777 | * inode flush completed and the inode was taken off the AIL. | |
778 | * So, just get out. | |
779 | */ | |
0d8fee32 | 780 | if (!issemalocked(&(ip->i_flock)) || |
1da177e4 LT |
781 | ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) { |
782 | iip->ili_pushbuf_flag = 0; | |
783 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
784 | return; | |
785 | } | |
786 | ||
787 | mp = ip->i_mount; | |
788 | bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno, | |
789 | iip->ili_format.ilf_len, XFS_INCORE_TRYLOCK); | |
790 | ||
791 | if (bp != NULL) { | |
792 | if (XFS_BUF_ISDELAYWRITE(bp)) { | |
793 | /* | |
794 | * We were racing with iflush because we don't hold | |
795 | * the AIL_LOCK or the flush lock. However, at this point, | |
796 | * we have the buffer, and we know that it's dirty. | |
797 | * So, it's possible that iflush raced with us, and | |
798 | * this item is already taken off the AIL. | |
799 | * If not, we can flush it async. | |
800 | */ | |
801 | dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) && | |
0d8fee32 | 802 | issemalocked(&(ip->i_flock))); |
1da177e4 LT |
803 | iip->ili_pushbuf_flag = 0; |
804 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
805 | xfs_buftrace("INODE ITEM PUSH", bp); | |
806 | if (XFS_BUF_ISPINNED(bp)) { | |
807 | xfs_log_force(mp, (xfs_lsn_t)0, | |
808 | XFS_LOG_FORCE); | |
809 | } | |
810 | if (dopush) { | |
811 | xfs_bawrite(mp, bp); | |
812 | } else { | |
813 | xfs_buf_relse(bp); | |
814 | } | |
815 | } else { | |
816 | iip->ili_pushbuf_flag = 0; | |
817 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
818 | xfs_buf_relse(bp); | |
819 | } | |
820 | return; | |
821 | } | |
822 | /* | |
823 | * We have to be careful about resetting pushbuf flag too early (above). | |
824 | * Even though in theory we can do it as soon as we have the buflock, | |
825 | * we don't want others to be doing work needlessly. They'll come to | |
826 | * this function thinking that pushing the buffer is their | |
827 | * responsibility only to find that the buffer is still locked by | |
828 | * another doing the same thing | |
829 | */ | |
830 | iip->ili_pushbuf_flag = 0; | |
831 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
832 | return; | |
833 | } | |
834 | ||
835 | ||
836 | /* | |
837 | * This is called to asynchronously write the inode associated with this | |
838 | * inode log item out to disk. The inode will already have been locked by | |
839 | * a successful call to xfs_inode_item_trylock(). | |
840 | */ | |
841 | STATIC void | |
842 | xfs_inode_item_push( | |
843 | xfs_inode_log_item_t *iip) | |
844 | { | |
845 | xfs_inode_t *ip; | |
846 | ||
847 | ip = iip->ili_inode; | |
848 | ||
849 | ASSERT(ismrlocked(&(ip->i_lock), MR_ACCESS)); | |
0d8fee32 | 850 | ASSERT(issemalocked(&(ip->i_flock))); |
1da177e4 LT |
851 | /* |
852 | * Since we were able to lock the inode's flush lock and | |
853 | * we found it on the AIL, the inode must be dirty. This | |
854 | * is because the inode is removed from the AIL while still | |
855 | * holding the flush lock in xfs_iflush_done(). Thus, if | |
856 | * we found it in the AIL and were able to obtain the flush | |
857 | * lock without sleeping, then there must not have been | |
858 | * anyone in the process of flushing the inode. | |
859 | */ | |
860 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || | |
861 | iip->ili_format.ilf_fields != 0); | |
862 | ||
863 | /* | |
864 | * Write out the inode. The completion routine ('iflush_done') will | |
865 | * pull it from the AIL, mark it clean, unlock the flush lock. | |
866 | */ | |
867 | (void) xfs_iflush(ip, XFS_IFLUSH_ASYNC); | |
868 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
869 | ||
870 | return; | |
871 | } | |
872 | ||
873 | /* | |
874 | * XXX rcc - this one really has to do something. Probably needs | |
875 | * to stamp in a new field in the incore inode. | |
876 | */ | |
877 | /* ARGSUSED */ | |
878 | STATIC void | |
879 | xfs_inode_item_committing( | |
880 | xfs_inode_log_item_t *iip, | |
881 | xfs_lsn_t lsn) | |
882 | { | |
883 | iip->ili_last_lsn = lsn; | |
884 | return; | |
885 | } | |
886 | ||
887 | /* | |
888 | * This is the ops vector shared by all buf log items. | |
889 | */ | |
7989cb8e | 890 | static struct xfs_item_ops xfs_inode_item_ops = { |
1da177e4 LT |
891 | .iop_size = (uint(*)(xfs_log_item_t*))xfs_inode_item_size, |
892 | .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) | |
893 | xfs_inode_item_format, | |
894 | .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin, | |
895 | .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin, | |
896 | .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) | |
897 | xfs_inode_item_unpin_remove, | |
898 | .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock, | |
899 | .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock, | |
900 | .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) | |
901 | xfs_inode_item_committed, | |
902 | .iop_push = (void(*)(xfs_log_item_t*))xfs_inode_item_push, | |
1da177e4 LT |
903 | .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf, |
904 | .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t)) | |
905 | xfs_inode_item_committing | |
906 | }; | |
907 | ||
908 | ||
909 | /* | |
910 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
911 | */ | |
912 | void | |
913 | xfs_inode_item_init( | |
914 | xfs_inode_t *ip, | |
915 | xfs_mount_t *mp) | |
916 | { | |
917 | xfs_inode_log_item_t *iip; | |
918 | ||
919 | ASSERT(ip->i_itemp == NULL); | |
920 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
921 | ||
922 | iip->ili_item.li_type = XFS_LI_INODE; | |
923 | iip->ili_item.li_ops = &xfs_inode_item_ops; | |
924 | iip->ili_item.li_mountp = mp; | |
925 | iip->ili_inode = ip; | |
926 | ||
927 | /* | |
928 | We have zeroed memory. No need ... | |
929 | iip->ili_extents_buf = NULL; | |
930 | iip->ili_pushbuf_flag = 0; | |
931 | */ | |
932 | ||
933 | iip->ili_format.ilf_type = XFS_LI_INODE; | |
934 | iip->ili_format.ilf_ino = ip->i_ino; | |
935 | iip->ili_format.ilf_blkno = ip->i_blkno; | |
936 | iip->ili_format.ilf_len = ip->i_len; | |
937 | iip->ili_format.ilf_boffset = ip->i_boffset; | |
938 | } | |
939 | ||
940 | /* | |
941 | * Free the inode log item and any memory hanging off of it. | |
942 | */ | |
943 | void | |
944 | xfs_inode_item_destroy( | |
945 | xfs_inode_t *ip) | |
946 | { | |
947 | #ifdef XFS_TRANS_DEBUG | |
948 | if (ip->i_itemp->ili_root_size != 0) { | |
949 | kmem_free(ip->i_itemp->ili_orig_root, | |
950 | ip->i_itemp->ili_root_size); | |
951 | } | |
952 | #endif | |
953 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
954 | } | |
955 | ||
956 | ||
957 | /* | |
958 | * This is the inode flushing I/O completion routine. It is called | |
959 | * from interrupt level when the buffer containing the inode is | |
960 | * flushed to disk. It is responsible for removing the inode item | |
961 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
962 | * flush lock. | |
963 | */ | |
964 | /*ARGSUSED*/ | |
965 | void | |
966 | xfs_iflush_done( | |
967 | xfs_buf_t *bp, | |
968 | xfs_inode_log_item_t *iip) | |
969 | { | |
970 | xfs_inode_t *ip; | |
971 | SPLDECL(s); | |
972 | ||
973 | ip = iip->ili_inode; | |
974 | ||
975 | /* | |
976 | * We only want to pull the item from the AIL if it is | |
977 | * actually there and its location in the log has not | |
978 | * changed since we started the flush. Thus, we only bother | |
979 | * if the ili_logged flag is set and the inode's lsn has not | |
980 | * changed. First we check the lsn outside | |
981 | * the lock since it's cheaper, and then we recheck while | |
982 | * holding the lock before removing the inode from the AIL. | |
983 | */ | |
984 | if (iip->ili_logged && | |
985 | (iip->ili_item.li_lsn == iip->ili_flush_lsn)) { | |
986 | AIL_LOCK(ip->i_mount, s); | |
987 | if (iip->ili_item.li_lsn == iip->ili_flush_lsn) { | |
988 | /* | |
989 | * xfs_trans_delete_ail() drops the AIL lock. | |
990 | */ | |
991 | xfs_trans_delete_ail(ip->i_mount, | |
992 | (xfs_log_item_t*)iip, s); | |
993 | } else { | |
994 | AIL_UNLOCK(ip->i_mount, s); | |
995 | } | |
996 | } | |
997 | ||
998 | iip->ili_logged = 0; | |
999 | ||
1000 | /* | |
1001 | * Clear the ili_last_fields bits now that we know that the | |
1002 | * data corresponding to them is safely on disk. | |
1003 | */ | |
1004 | iip->ili_last_fields = 0; | |
1005 | ||
1006 | /* | |
1007 | * Release the inode's flush lock since we're done with it. | |
1008 | */ | |
1009 | xfs_ifunlock(ip); | |
1010 | ||
1011 | return; | |
1012 | } | |
1013 | ||
1014 | /* | |
1015 | * This is the inode flushing abort routine. It is called | |
1016 | * from xfs_iflush when the filesystem is shutting down to clean | |
1017 | * up the inode state. | |
1018 | * It is responsible for removing the inode item | |
1019 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
1020 | * flush lock. | |
1021 | */ | |
1022 | void | |
1023 | xfs_iflush_abort( | |
1024 | xfs_inode_t *ip) | |
1025 | { | |
1026 | xfs_inode_log_item_t *iip; | |
1027 | xfs_mount_t *mp; | |
1028 | SPLDECL(s); | |
1029 | ||
1030 | iip = ip->i_itemp; | |
1031 | mp = ip->i_mount; | |
1032 | if (iip) { | |
1033 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { | |
1034 | AIL_LOCK(mp, s); | |
1035 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { | |
1036 | /* | |
1037 | * xfs_trans_delete_ail() drops the AIL lock. | |
1038 | */ | |
1039 | xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip, | |
1040 | s); | |
1041 | } else | |
1042 | AIL_UNLOCK(mp, s); | |
1043 | } | |
1044 | iip->ili_logged = 0; | |
1045 | /* | |
1046 | * Clear the ili_last_fields bits now that we know that the | |
1047 | * data corresponding to them is safely on disk. | |
1048 | */ | |
1049 | iip->ili_last_fields = 0; | |
1050 | /* | |
1051 | * Clear the inode logging fields so no more flushes are | |
1052 | * attempted. | |
1053 | */ | |
1054 | iip->ili_format.ilf_fields = 0; | |
1055 | } | |
1056 | /* | |
1057 | * Release the inode's flush lock since we're done with it. | |
1058 | */ | |
1059 | xfs_ifunlock(ip); | |
1060 | } | |
1061 | ||
1062 | void | |
1063 | xfs_istale_done( | |
1064 | xfs_buf_t *bp, | |
1065 | xfs_inode_log_item_t *iip) | |
1066 | { | |
1067 | xfs_iflush_abort(iip->ili_inode); | |
1068 | } | |
6d192a9b TS |
1069 | |
1070 | /* | |
1071 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
1072 | * (which can have different field alignments) to the native version | |
1073 | */ | |
1074 | int | |
1075 | xfs_inode_item_format_convert( | |
1076 | xfs_log_iovec_t *buf, | |
1077 | xfs_inode_log_format_t *in_f) | |
1078 | { | |
1079 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
1080 | xfs_inode_log_format_32_t *in_f32; | |
1081 | ||
1082 | in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr; | |
1083 | in_f->ilf_type = in_f32->ilf_type; | |
1084 | in_f->ilf_size = in_f32->ilf_size; | |
1085 | in_f->ilf_fields = in_f32->ilf_fields; | |
1086 | in_f->ilf_asize = in_f32->ilf_asize; | |
1087 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
1088 | in_f->ilf_ino = in_f32->ilf_ino; | |
1089 | /* copy biggest field of ilf_u */ | |
1090 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1091 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
1092 | sizeof(uuid_t)); | |
1093 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
1094 | in_f->ilf_len = in_f32->ilf_len; | |
1095 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
1096 | return 0; | |
1097 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
1098 | xfs_inode_log_format_64_t *in_f64; | |
1099 | ||
1100 | in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr; | |
1101 | in_f->ilf_type = in_f64->ilf_type; | |
1102 | in_f->ilf_size = in_f64->ilf_size; | |
1103 | in_f->ilf_fields = in_f64->ilf_fields; | |
1104 | in_f->ilf_asize = in_f64->ilf_asize; | |
1105 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
1106 | in_f->ilf_ino = in_f64->ilf_ino; | |
1107 | /* copy biggest field of ilf_u */ | |
1108 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1109 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
1110 | sizeof(uuid_t)); | |
1111 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
1112 | in_f->ilf_len = in_f64->ilf_len; | |
1113 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
1114 | return 0; | |
1115 | } | |
1116 | return EFSCORRUPTED; | |
1117 | } |