]>
Commit | Line | Data |
---|---|---|
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 | 42 | #include "xfs_rw.h" |
db7a19f2 | 43 | #include "xfs_error.h" |
1da177e4 LT |
44 | |
45 | ||
46 | kmem_zone_t *xfs_ili_zone; /* inode log item zone */ | |
47 | ||
48 | /* | |
49 | * This returns the number of iovecs needed to log the given inode item. | |
50 | * | |
51 | * We need one iovec for the inode log format structure, one for the | |
52 | * inode core, and possibly one for the inode data/extents/b-tree root | |
53 | * and one for the inode attribute data/extents/b-tree root. | |
54 | */ | |
55 | STATIC uint | |
56 | xfs_inode_item_size( | |
57 | xfs_inode_log_item_t *iip) | |
58 | { | |
59 | uint nvecs; | |
60 | xfs_inode_t *ip; | |
61 | ||
62 | ip = iip->ili_inode; | |
63 | nvecs = 2; | |
64 | ||
65 | /* | |
66 | * Only log the data/extents/b-tree root if there is something | |
67 | * left to log. | |
68 | */ | |
69 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
70 | ||
71 | switch (ip->i_d.di_format) { | |
72 | case XFS_DINODE_FMT_EXTENTS: | |
73 | iip->ili_format.ilf_fields &= | |
74 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
75 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
76 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DEXT) && | |
77 | (ip->i_d.di_nextents > 0) && | |
78 | (ip->i_df.if_bytes > 0)) { | |
79 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
80 | nvecs++; | |
81 | } else { | |
82 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DEXT; | |
83 | } | |
84 | break; | |
85 | ||
86 | case XFS_DINODE_FMT_BTREE: | |
87 | ASSERT(ip->i_df.if_ext_max == | |
88 | XFS_IFORK_DSIZE(ip) / (uint)sizeof(xfs_bmbt_rec_t)); | |
89 | iip->ili_format.ilf_fields &= | |
90 | ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
91 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
92 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) && | |
93 | (ip->i_df.if_broot_bytes > 0)) { | |
94 | ASSERT(ip->i_df.if_broot != NULL); | |
95 | nvecs++; | |
96 | } else { | |
97 | ASSERT(!(iip->ili_format.ilf_fields & | |
98 | XFS_ILOG_DBROOT)); | |
99 | #ifdef XFS_TRANS_DEBUG | |
100 | if (iip->ili_root_size > 0) { | |
101 | ASSERT(iip->ili_root_size == | |
102 | ip->i_df.if_broot_bytes); | |
103 | ASSERT(memcmp(iip->ili_orig_root, | |
104 | ip->i_df.if_broot, | |
105 | iip->ili_root_size) == 0); | |
106 | } else { | |
107 | ASSERT(ip->i_df.if_broot_bytes == 0); | |
108 | } | |
109 | #endif | |
110 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DBROOT; | |
111 | } | |
112 | break; | |
113 | ||
114 | case XFS_DINODE_FMT_LOCAL: | |
115 | iip->ili_format.ilf_fields &= | |
116 | ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | | |
117 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
118 | if ((iip->ili_format.ilf_fields & XFS_ILOG_DDATA) && | |
119 | (ip->i_df.if_bytes > 0)) { | |
120 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
121 | ASSERT(ip->i_d.di_size > 0); | |
122 | nvecs++; | |
123 | } else { | |
124 | iip->ili_format.ilf_fields &= ~XFS_ILOG_DDATA; | |
125 | } | |
126 | break; | |
127 | ||
128 | case XFS_DINODE_FMT_DEV: | |
129 | iip->ili_format.ilf_fields &= | |
130 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
131 | XFS_ILOG_DEXT | XFS_ILOG_UUID); | |
132 | break; | |
133 | ||
134 | case XFS_DINODE_FMT_UUID: | |
135 | iip->ili_format.ilf_fields &= | |
136 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
137 | XFS_ILOG_DEXT | XFS_ILOG_DEV); | |
138 | break; | |
139 | ||
140 | default: | |
141 | ASSERT(0); | |
142 | break; | |
143 | } | |
144 | ||
145 | /* | |
146 | * If there are no attributes associated with this file, | |
147 | * then there cannot be anything more to log. | |
148 | * Clear all attribute-related log flags. | |
149 | */ | |
150 | if (!XFS_IFORK_Q(ip)) { | |
151 | iip->ili_format.ilf_fields &= | |
152 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT); | |
153 | return nvecs; | |
154 | } | |
155 | ||
156 | /* | |
157 | * Log any necessary attribute data. | |
158 | */ | |
159 | switch (ip->i_d.di_aformat) { | |
160 | case XFS_DINODE_FMT_EXTENTS: | |
161 | iip->ili_format.ilf_fields &= | |
162 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT); | |
163 | if ((iip->ili_format.ilf_fields & XFS_ILOG_AEXT) && | |
164 | (ip->i_d.di_anextents > 0) && | |
165 | (ip->i_afp->if_bytes > 0)) { | |
166 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
167 | nvecs++; | |
168 | } else { | |
169 | iip->ili_format.ilf_fields &= ~XFS_ILOG_AEXT; | |
170 | } | |
171 | break; | |
172 | ||
173 | case XFS_DINODE_FMT_BTREE: | |
174 | iip->ili_format.ilf_fields &= | |
175 | ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT); | |
176 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) && | |
177 | (ip->i_afp->if_broot_bytes > 0)) { | |
178 | ASSERT(ip->i_afp->if_broot != NULL); | |
179 | nvecs++; | |
180 | } else { | |
181 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ABROOT; | |
182 | } | |
183 | break; | |
184 | ||
185 | case XFS_DINODE_FMT_LOCAL: | |
186 | iip->ili_format.ilf_fields &= | |
187 | ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT); | |
188 | if ((iip->ili_format.ilf_fields & XFS_ILOG_ADATA) && | |
189 | (ip->i_afp->if_bytes > 0)) { | |
190 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
191 | nvecs++; | |
192 | } else { | |
193 | iip->ili_format.ilf_fields &= ~XFS_ILOG_ADATA; | |
194 | } | |
195 | break; | |
196 | ||
197 | default: | |
198 | ASSERT(0); | |
199 | break; | |
200 | } | |
201 | ||
202 | return nvecs; | |
203 | } | |
204 | ||
205 | /* | |
206 | * This is called to fill in the vector of log iovecs for the | |
207 | * given inode log item. It fills the first item with an inode | |
208 | * log format structure, the second with the on-disk inode structure, | |
209 | * and a possible third and/or fourth with the inode data/extents/b-tree | |
210 | * root and inode attributes data/extents/b-tree root. | |
211 | */ | |
212 | STATIC void | |
213 | xfs_inode_item_format( | |
214 | xfs_inode_log_item_t *iip, | |
215 | xfs_log_iovec_t *log_vector) | |
216 | { | |
217 | uint nvecs; | |
218 | xfs_log_iovec_t *vecp; | |
219 | xfs_inode_t *ip; | |
220 | size_t data_bytes; | |
221 | xfs_bmbt_rec_t *ext_buffer; | |
222 | int nrecs; | |
223 | xfs_mount_t *mp; | |
224 | ||
225 | ip = iip->ili_inode; | |
226 | vecp = log_vector; | |
227 | ||
228 | vecp->i_addr = (xfs_caddr_t)&iip->ili_format; | |
229 | vecp->i_len = sizeof(xfs_inode_log_format_t); | |
7e9c6396 | 230 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IFORMAT); |
1da177e4 LT |
231 | vecp++; |
232 | nvecs = 1; | |
233 | ||
f9581b14 CH |
234 | /* |
235 | * Make sure the linux inode is dirty. We do this before | |
236 | * clearing i_update_core as the VFS will call back into | |
237 | * XFS here and set i_update_core, so we need to dirty the | |
238 | * inode first so that the ordering of i_update_core and | |
239 | * unlogged modifications still works as described below. | |
240 | */ | |
241 | xfs_mark_inode_dirty_sync(ip); | |
242 | ||
1da177e4 LT |
243 | /* |
244 | * Clear i_update_core if the timestamps (or any other | |
245 | * non-transactional modification) need flushing/logging | |
246 | * and we're about to log them with the rest of the core. | |
247 | * | |
248 | * This is the same logic as xfs_iflush() but this code can't | |
249 | * run at the same time as xfs_iflush because we're in commit | |
250 | * processing here and so we have the inode lock held in | |
251 | * exclusive mode. Although it doesn't really matter | |
252 | * for the timestamps if both routines were to grab the | |
253 | * timestamps or not. That would be ok. | |
254 | * | |
255 | * We clear i_update_core before copying out the data. | |
256 | * This is for coordination with our timestamp updates | |
257 | * that don't hold the inode lock. They will always | |
258 | * update the timestamps BEFORE setting i_update_core, | |
259 | * so if we clear i_update_core after they set it we | |
260 | * are guaranteed to see their updates to the timestamps | |
261 | * either here. Likewise, if they set it after we clear it | |
262 | * here, we'll see it either on the next commit of this | |
263 | * inode or the next time the inode gets flushed via | |
264 | * xfs_iflush(). This depends on strongly ordered memory | |
265 | * semantics, but we have that. We use the SYNCHRONIZE | |
266 | * macro to make sure that the compiler does not reorder | |
267 | * the i_update_core access below the data copy below. | |
268 | */ | |
269 | if (ip->i_update_core) { | |
270 | ip->i_update_core = 0; | |
271 | SYNCHRONIZE(); | |
272 | } | |
273 | ||
42fe2b1f | 274 | /* |
f9581b14 | 275 | * Make sure to get the latest timestamps from the Linux inode. |
42fe2b1f | 276 | */ |
f9581b14 | 277 | xfs_synchronize_times(ip); |
5d51eff4 | 278 | |
1da177e4 | 279 | vecp->i_addr = (xfs_caddr_t)&ip->i_d; |
81591fe2 | 280 | vecp->i_len = sizeof(struct xfs_icdinode); |
7e9c6396 | 281 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE); |
1da177e4 LT |
282 | vecp++; |
283 | nvecs++; | |
284 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
285 | ||
286 | /* | |
287 | * If this is really an old format inode, then we need to | |
288 | * log it as such. This means that we have to copy the link | |
289 | * count from the new field to the old. We don't have to worry | |
290 | * about the new fields, because nothing trusts them as long as | |
291 | * the old inode version number is there. If the superblock already | |
292 | * has a new version number, then we don't bother converting back. | |
293 | */ | |
294 | mp = ip->i_mount; | |
51ce16d5 CH |
295 | ASSERT(ip->i_d.di_version == 1 || xfs_sb_version_hasnlink(&mp->m_sb)); |
296 | if (ip->i_d.di_version == 1) { | |
62118709 | 297 | if (!xfs_sb_version_hasnlink(&mp->m_sb)) { |
1da177e4 LT |
298 | /* |
299 | * Convert it back. | |
300 | */ | |
301 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
302 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
303 | } else { | |
304 | /* | |
305 | * The superblock version has already been bumped, | |
306 | * so just make the conversion to the new inode | |
307 | * format permanent. | |
308 | */ | |
51ce16d5 | 309 | ip->i_d.di_version = 2; |
1da177e4 LT |
310 | ip->i_d.di_onlink = 0; |
311 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
312 | } | |
313 | } | |
314 | ||
315 | switch (ip->i_d.di_format) { | |
316 | case XFS_DINODE_FMT_EXTENTS: | |
317 | ASSERT(!(iip->ili_format.ilf_fields & | |
318 | (XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
319 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
320 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) { | |
321 | ASSERT(ip->i_df.if_bytes > 0); | |
322 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
323 | ASSERT(ip->i_d.di_nextents > 0); | |
324 | ASSERT(iip->ili_extents_buf == NULL); | |
325 | nrecs = ip->i_df.if_bytes / | |
326 | (uint)sizeof(xfs_bmbt_rec_t); | |
327 | ASSERT(nrecs > 0); | |
f016bad6 | 328 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
329 | if (nrecs == ip->i_d.di_nextents) { |
330 | /* | |
331 | * There are no delayed allocation | |
332 | * extents, so just point to the | |
333 | * real extents array. | |
334 | */ | |
335 | vecp->i_addr = | |
336 | (char *)(ip->i_df.if_u1.if_extents); | |
337 | vecp->i_len = ip->i_df.if_bytes; | |
7e9c6396 | 338 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
339 | } else |
340 | #endif | |
341 | { | |
342 | /* | |
343 | * There are delayed allocation extents | |
344 | * in the inode, or we need to convert | |
345 | * the extents to on disk format. | |
346 | * Use xfs_iextents_copy() | |
347 | * to copy only the real extents into | |
348 | * a separate buffer. We'll free the | |
349 | * buffer in the unlock routine. | |
350 | */ | |
351 | ext_buffer = kmem_alloc(ip->i_df.if_bytes, | |
352 | KM_SLEEP); | |
353 | iip->ili_extents_buf = ext_buffer; | |
354 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
355 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
356 | XFS_DATA_FORK); | |
7e9c6396 | 357 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
358 | } |
359 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
360 | iip->ili_format.ilf_dsize = vecp->i_len; | |
361 | vecp++; | |
362 | nvecs++; | |
363 | } | |
364 | break; | |
365 | ||
366 | case XFS_DINODE_FMT_BTREE: | |
367 | ASSERT(!(iip->ili_format.ilf_fields & | |
368 | (XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
369 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
370 | if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) { | |
371 | ASSERT(ip->i_df.if_broot_bytes > 0); | |
372 | ASSERT(ip->i_df.if_broot != NULL); | |
373 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot; | |
374 | vecp->i_len = ip->i_df.if_broot_bytes; | |
7e9c6396 | 375 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IBROOT); |
1da177e4 LT |
376 | vecp++; |
377 | nvecs++; | |
378 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
379 | } | |
380 | break; | |
381 | ||
382 | case XFS_DINODE_FMT_LOCAL: | |
383 | ASSERT(!(iip->ili_format.ilf_fields & | |
384 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
385 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
386 | if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) { | |
387 | ASSERT(ip->i_df.if_bytes > 0); | |
388 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
389 | ASSERT(ip->i_d.di_size > 0); | |
390 | ||
391 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data; | |
392 | /* | |
393 | * Round i_bytes up to a word boundary. | |
394 | * The underlying memory is guaranteed to | |
395 | * to be there by xfs_idata_realloc(). | |
396 | */ | |
397 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
398 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
399 | (ip->i_df.if_real_bytes == data_bytes)); | |
400 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 401 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ILOCAL); |
1da177e4 LT |
402 | vecp++; |
403 | nvecs++; | |
404 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
405 | } | |
406 | break; | |
407 | ||
408 | case XFS_DINODE_FMT_DEV: | |
409 | ASSERT(!(iip->ili_format.ilf_fields & | |
410 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
411 | XFS_ILOG_DDATA | XFS_ILOG_UUID))); | |
412 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) { | |
413 | iip->ili_format.ilf_u.ilfu_rdev = | |
414 | ip->i_df.if_u2.if_rdev; | |
415 | } | |
416 | break; | |
417 | ||
418 | case XFS_DINODE_FMT_UUID: | |
419 | ASSERT(!(iip->ili_format.ilf_fields & | |
420 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
421 | XFS_ILOG_DDATA | XFS_ILOG_DEV))); | |
422 | if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) { | |
423 | iip->ili_format.ilf_u.ilfu_uuid = | |
424 | ip->i_df.if_u2.if_uuid; | |
425 | } | |
426 | break; | |
427 | ||
428 | default: | |
429 | ASSERT(0); | |
430 | break; | |
431 | } | |
432 | ||
433 | /* | |
434 | * If there are no attributes associated with the file, | |
435 | * then we're done. | |
436 | * Assert that no attribute-related log flags are set. | |
437 | */ | |
438 | if (!XFS_IFORK_Q(ip)) { | |
439 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
440 | iip->ili_format.ilf_size = nvecs; | |
441 | ASSERT(!(iip->ili_format.ilf_fields & | |
442 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
443 | return; | |
444 | } | |
445 | ||
446 | switch (ip->i_d.di_aformat) { | |
447 | case XFS_DINODE_FMT_EXTENTS: | |
448 | ASSERT(!(iip->ili_format.ilf_fields & | |
449 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT))); | |
450 | if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) { | |
451 | ASSERT(ip->i_afp->if_bytes > 0); | |
452 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
453 | ASSERT(ip->i_d.di_anextents > 0); | |
454 | #ifdef DEBUG | |
455 | nrecs = ip->i_afp->if_bytes / | |
456 | (uint)sizeof(xfs_bmbt_rec_t); | |
457 | #endif | |
458 | ASSERT(nrecs > 0); | |
459 | ASSERT(nrecs == ip->i_d.di_anextents); | |
f016bad6 | 460 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
461 | /* |
462 | * There are not delayed allocation extents | |
463 | * for attributes, so just point at the array. | |
464 | */ | |
465 | vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents); | |
466 | vecp->i_len = ip->i_afp->if_bytes; | |
467 | #else | |
468 | ASSERT(iip->ili_aextents_buf == NULL); | |
469 | /* | |
470 | * Need to endian flip before logging | |
471 | */ | |
472 | ext_buffer = kmem_alloc(ip->i_afp->if_bytes, | |
473 | KM_SLEEP); | |
474 | iip->ili_aextents_buf = ext_buffer; | |
475 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
476 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
477 | XFS_ATTR_FORK); | |
478 | #endif | |
7e9c6396 | 479 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_EXT); |
1da177e4 LT |
480 | iip->ili_format.ilf_asize = vecp->i_len; |
481 | vecp++; | |
482 | nvecs++; | |
483 | } | |
484 | break; | |
485 | ||
486 | case XFS_DINODE_FMT_BTREE: | |
487 | ASSERT(!(iip->ili_format.ilf_fields & | |
488 | (XFS_ILOG_ADATA | XFS_ILOG_AEXT))); | |
489 | if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) { | |
490 | ASSERT(ip->i_afp->if_broot_bytes > 0); | |
491 | ASSERT(ip->i_afp->if_broot != NULL); | |
492 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot; | |
493 | vecp->i_len = ip->i_afp->if_broot_bytes; | |
7e9c6396 | 494 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_BROOT); |
1da177e4 LT |
495 | vecp++; |
496 | nvecs++; | |
497 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
498 | } | |
499 | break; | |
500 | ||
501 | case XFS_DINODE_FMT_LOCAL: | |
502 | ASSERT(!(iip->ili_format.ilf_fields & | |
503 | (XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
504 | if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) { | |
505 | ASSERT(ip->i_afp->if_bytes > 0); | |
506 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
507 | ||
508 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data; | |
509 | /* | |
510 | * Round i_bytes up to a word boundary. | |
511 | * The underlying memory is guaranteed to | |
512 | * to be there by xfs_idata_realloc(). | |
513 | */ | |
514 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
515 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
516 | (ip->i_afp->if_real_bytes == data_bytes)); | |
517 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 518 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_LOCAL); |
1da177e4 LT |
519 | vecp++; |
520 | nvecs++; | |
521 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
522 | } | |
523 | break; | |
524 | ||
525 | default: | |
526 | ASSERT(0); | |
527 | break; | |
528 | } | |
529 | ||
530 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
531 | iip->ili_format.ilf_size = nvecs; | |
532 | } | |
533 | ||
534 | ||
535 | /* | |
536 | * This is called to pin the inode associated with the inode log | |
537 | * item in memory so it cannot be written out. Do this by calling | |
538 | * xfs_ipin() to bump the pin count in the inode while holding the | |
539 | * inode pin lock. | |
540 | */ | |
541 | STATIC void | |
542 | xfs_inode_item_pin( | |
543 | xfs_inode_log_item_t *iip) | |
544 | { | |
579aa9ca | 545 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
1da177e4 LT |
546 | xfs_ipin(iip->ili_inode); |
547 | } | |
548 | ||
549 | ||
550 | /* | |
551 | * This is called to unpin the inode associated with the inode log | |
552 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
553 | * Just call xfs_iunpin() on the inode to do this. | |
554 | */ | |
555 | /* ARGSUSED */ | |
556 | STATIC void | |
557 | xfs_inode_item_unpin( | |
558 | xfs_inode_log_item_t *iip, | |
559 | int stale) | |
560 | { | |
561 | xfs_iunpin(iip->ili_inode); | |
562 | } | |
563 | ||
564 | /* ARGSUSED */ | |
565 | STATIC void | |
566 | xfs_inode_item_unpin_remove( | |
567 | xfs_inode_log_item_t *iip, | |
568 | xfs_trans_t *tp) | |
569 | { | |
570 | xfs_iunpin(iip->ili_inode); | |
571 | } | |
572 | ||
573 | /* | |
574 | * This is called to attempt to lock the inode associated with this | |
575 | * inode log item, in preparation for the push routine which does the actual | |
576 | * iflush. Don't sleep on the inode lock or the flush lock. | |
577 | * | |
578 | * If the flush lock is already held, indicating that the inode has | |
579 | * been or is in the process of being flushed, then (ideally) we'd like to | |
580 | * see if the inode's buffer is still incore, and if so give it a nudge. | |
581 | * We delay doing so until the pushbuf routine, though, to avoid holding | |
c41564b5 | 582 | * the AIL lock across a call to the blackhole which is the buffer cache. |
1da177e4 LT |
583 | * Also we don't want to sleep in any device strategy routines, which can happen |
584 | * if we do the subsequent bawrite in here. | |
585 | */ | |
586 | STATIC uint | |
587 | xfs_inode_item_trylock( | |
588 | xfs_inode_log_item_t *iip) | |
589 | { | |
590 | register xfs_inode_t *ip; | |
591 | ||
592 | ip = iip->ili_inode; | |
593 | ||
594 | if (xfs_ipincount(ip) > 0) { | |
595 | return XFS_ITEM_PINNED; | |
596 | } | |
597 | ||
598 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) { | |
599 | return XFS_ITEM_LOCKED; | |
600 | } | |
601 | ||
602 | if (!xfs_iflock_nowait(ip)) { | |
603 | /* | |
604 | * If someone else isn't already trying to push the inode | |
605 | * buffer, we get to do it. | |
606 | */ | |
607 | if (iip->ili_pushbuf_flag == 0) { | |
608 | iip->ili_pushbuf_flag = 1; | |
609 | #ifdef DEBUG | |
3762ec6b | 610 | iip->ili_push_owner = current_pid(); |
1da177e4 LT |
611 | #endif |
612 | /* | |
613 | * Inode is left locked in shared mode. | |
614 | * Pushbuf routine gets to unlock it. | |
615 | */ | |
616 | return XFS_ITEM_PUSHBUF; | |
617 | } else { | |
618 | /* | |
287f3dad | 619 | * We hold the AIL lock, so we must specify the |
1da177e4 LT |
620 | * NONOTIFY flag so that we won't double trip. |
621 | */ | |
622 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
623 | return XFS_ITEM_FLUSHING; | |
624 | } | |
625 | /* NOTREACHED */ | |
626 | } | |
627 | ||
628 | /* Stale items should force out the iclog */ | |
629 | if (ip->i_flags & XFS_ISTALE) { | |
630 | xfs_ifunlock(ip); | |
631 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
632 | return XFS_ITEM_PINNED; | |
633 | } | |
634 | ||
635 | #ifdef DEBUG | |
636 | if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) { | |
637 | ASSERT(iip->ili_format.ilf_fields != 0); | |
638 | ASSERT(iip->ili_logged == 0); | |
639 | ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL); | |
640 | } | |
641 | #endif | |
642 | return XFS_ITEM_SUCCESS; | |
643 | } | |
644 | ||
645 | /* | |
646 | * Unlock the inode associated with the inode log item. | |
647 | * Clear the fields of the inode and inode log item that | |
648 | * are specific to the current transaction. If the | |
649 | * hold flags is set, do not unlock the inode. | |
650 | */ | |
651 | STATIC void | |
652 | xfs_inode_item_unlock( | |
653 | xfs_inode_log_item_t *iip) | |
654 | { | |
655 | uint hold; | |
656 | uint iolocked; | |
657 | uint lock_flags; | |
658 | xfs_inode_t *ip; | |
659 | ||
660 | ASSERT(iip != NULL); | |
661 | ASSERT(iip->ili_inode->i_itemp != NULL); | |
579aa9ca | 662 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
1da177e4 LT |
663 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
664 | XFS_ILI_IOLOCKED_EXCL)) || | |
579aa9ca | 665 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL)); |
1da177e4 LT |
666 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
667 | XFS_ILI_IOLOCKED_SHARED)) || | |
579aa9ca | 668 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED)); |
1da177e4 LT |
669 | /* |
670 | * Clear the transaction pointer in the inode. | |
671 | */ | |
672 | ip = iip->ili_inode; | |
673 | ip->i_transp = NULL; | |
674 | ||
675 | /* | |
676 | * If the inode needed a separate buffer with which to log | |
677 | * its extents, then free it now. | |
678 | */ | |
679 | if (iip->ili_extents_buf != NULL) { | |
680 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
681 | ASSERT(ip->i_d.di_nextents > 0); | |
682 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT); | |
683 | ASSERT(ip->i_df.if_bytes > 0); | |
f0e2d93c | 684 | kmem_free(iip->ili_extents_buf); |
1da177e4 LT |
685 | iip->ili_extents_buf = NULL; |
686 | } | |
687 | if (iip->ili_aextents_buf != NULL) { | |
688 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
689 | ASSERT(ip->i_d.di_anextents > 0); | |
690 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT); | |
691 | ASSERT(ip->i_afp->if_bytes > 0); | |
f0e2d93c | 692 | kmem_free(iip->ili_aextents_buf); |
1da177e4 LT |
693 | iip->ili_aextents_buf = NULL; |
694 | } | |
695 | ||
696 | /* | |
697 | * Figure out if we should unlock the inode or not. | |
698 | */ | |
699 | hold = iip->ili_flags & XFS_ILI_HOLD; | |
700 | ||
701 | /* | |
702 | * Before clearing out the flags, remember whether we | |
703 | * are holding the inode's IO lock. | |
704 | */ | |
705 | iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY; | |
706 | ||
707 | /* | |
708 | * Clear out the fields of the inode log item particular | |
709 | * to the current transaction. | |
710 | */ | |
1da177e4 LT |
711 | iip->ili_flags = 0; |
712 | ||
713 | /* | |
714 | * Unlock the inode if XFS_ILI_HOLD was not set. | |
715 | */ | |
716 | if (!hold) { | |
717 | lock_flags = XFS_ILOCK_EXCL; | |
718 | if (iolocked & XFS_ILI_IOLOCKED_EXCL) { | |
719 | lock_flags |= XFS_IOLOCK_EXCL; | |
720 | } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) { | |
721 | lock_flags |= XFS_IOLOCK_SHARED; | |
722 | } | |
723 | xfs_iput(iip->ili_inode, lock_flags); | |
724 | } | |
725 | } | |
726 | ||
727 | /* | |
728 | * This is called to find out where the oldest active copy of the | |
729 | * inode log item in the on disk log resides now that the last log | |
730 | * write of it completed at the given lsn. Since we always re-log | |
731 | * all dirty data in an inode, the latest copy in the on disk log | |
732 | * is the only one that matters. Therefore, simply return the | |
733 | * given lsn. | |
734 | */ | |
735 | /*ARGSUSED*/ | |
736 | STATIC xfs_lsn_t | |
737 | xfs_inode_item_committed( | |
738 | xfs_inode_log_item_t *iip, | |
739 | xfs_lsn_t lsn) | |
740 | { | |
741 | return (lsn); | |
742 | } | |
743 | ||
1da177e4 LT |
744 | /* |
745 | * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK | |
746 | * failed to get the inode flush lock but did get the inode locked SHARED. | |
747 | * Here we're trying to see if the inode buffer is incore, and if so whether it's | |
748 | * marked delayed write. If that's the case, we'll initiate a bawrite on that | |
749 | * buffer to expedite the process. | |
750 | * | |
287f3dad | 751 | * We aren't holding the AIL lock (or the flush lock) when this gets called, |
1da177e4 LT |
752 | * so it is inherently race-y. |
753 | */ | |
754 | STATIC void | |
755 | xfs_inode_item_pushbuf( | |
756 | xfs_inode_log_item_t *iip) | |
757 | { | |
758 | xfs_inode_t *ip; | |
759 | xfs_mount_t *mp; | |
760 | xfs_buf_t *bp; | |
761 | uint dopush; | |
762 | ||
763 | ip = iip->ili_inode; | |
764 | ||
579aa9ca | 765 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
1da177e4 LT |
766 | |
767 | /* | |
768 | * The ili_pushbuf_flag keeps others from | |
769 | * trying to duplicate our effort. | |
770 | */ | |
771 | ASSERT(iip->ili_pushbuf_flag != 0); | |
3762ec6b | 772 | ASSERT(iip->ili_push_owner == current_pid()); |
1da177e4 LT |
773 | |
774 | /* | |
c63942d3 DC |
775 | * If a flush is not in progress anymore, chances are that the |
776 | * inode was taken off the AIL. So, just get out. | |
1da177e4 | 777 | */ |
c63942d3 | 778 | if (completion_done(&ip->i_flush) || |
1da177e4 LT |
779 | ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) { |
780 | iip->ili_pushbuf_flag = 0; | |
781 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
782 | return; | |
783 | } | |
784 | ||
785 | mp = ip->i_mount; | |
786 | bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno, | |
787 | iip->ili_format.ilf_len, XFS_INCORE_TRYLOCK); | |
788 | ||
789 | if (bp != NULL) { | |
790 | if (XFS_BUF_ISDELAYWRITE(bp)) { | |
791 | /* | |
792 | * We were racing with iflush because we don't hold | |
287f3dad | 793 | * the AIL lock or the flush lock. However, at this point, |
1da177e4 LT |
794 | * we have the buffer, and we know that it's dirty. |
795 | * So, it's possible that iflush raced with us, and | |
796 | * this item is already taken off the AIL. | |
797 | * If not, we can flush it async. | |
798 | */ | |
799 | dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) && | |
c63942d3 | 800 | !completion_done(&ip->i_flush)); |
1da177e4 LT |
801 | iip->ili_pushbuf_flag = 0; |
802 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
803 | xfs_buftrace("INODE ITEM PUSH", bp); | |
804 | if (XFS_BUF_ISPINNED(bp)) { | |
805 | xfs_log_force(mp, (xfs_lsn_t)0, | |
806 | XFS_LOG_FORCE); | |
807 | } | |
808 | if (dopush) { | |
db7a19f2 DC |
809 | int error; |
810 | error = xfs_bawrite(mp, bp); | |
811 | if (error) | |
812 | xfs_fs_cmn_err(CE_WARN, mp, | |
813 | "xfs_inode_item_pushbuf: pushbuf error %d on iip %p, bp %p", | |
814 | error, iip, bp); | |
1da177e4 LT |
815 | } else { |
816 | xfs_buf_relse(bp); | |
817 | } | |
818 | } else { | |
819 | iip->ili_pushbuf_flag = 0; | |
820 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
821 | xfs_buf_relse(bp); | |
822 | } | |
823 | return; | |
824 | } | |
825 | /* | |
826 | * We have to be careful about resetting pushbuf flag too early (above). | |
827 | * Even though in theory we can do it as soon as we have the buflock, | |
828 | * we don't want others to be doing work needlessly. They'll come to | |
829 | * this function thinking that pushing the buffer is their | |
830 | * responsibility only to find that the buffer is still locked by | |
831 | * another doing the same thing | |
832 | */ | |
833 | iip->ili_pushbuf_flag = 0; | |
834 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
835 | return; | |
836 | } | |
837 | ||
838 | ||
839 | /* | |
840 | * This is called to asynchronously write the inode associated with this | |
841 | * inode log item out to disk. The inode will already have been locked by | |
842 | * a successful call to xfs_inode_item_trylock(). | |
843 | */ | |
844 | STATIC void | |
845 | xfs_inode_item_push( | |
846 | xfs_inode_log_item_t *iip) | |
847 | { | |
848 | xfs_inode_t *ip; | |
849 | ||
850 | ip = iip->ili_inode; | |
851 | ||
579aa9ca | 852 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
c63942d3 | 853 | ASSERT(!completion_done(&ip->i_flush)); |
1da177e4 LT |
854 | /* |
855 | * Since we were able to lock the inode's flush lock and | |
856 | * we found it on the AIL, the inode must be dirty. This | |
857 | * is because the inode is removed from the AIL while still | |
858 | * holding the flush lock in xfs_iflush_done(). Thus, if | |
859 | * we found it in the AIL and were able to obtain the flush | |
860 | * lock without sleeping, then there must not have been | |
861 | * anyone in the process of flushing the inode. | |
862 | */ | |
863 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || | |
864 | iip->ili_format.ilf_fields != 0); | |
865 | ||
866 | /* | |
867 | * Write out the inode. The completion routine ('iflush_done') will | |
868 | * pull it from the AIL, mark it clean, unlock the flush lock. | |
869 | */ | |
870 | (void) xfs_iflush(ip, XFS_IFLUSH_ASYNC); | |
871 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
872 | ||
873 | return; | |
874 | } | |
875 | ||
876 | /* | |
877 | * XXX rcc - this one really has to do something. Probably needs | |
878 | * to stamp in a new field in the incore inode. | |
879 | */ | |
880 | /* ARGSUSED */ | |
881 | STATIC void | |
882 | xfs_inode_item_committing( | |
883 | xfs_inode_log_item_t *iip, | |
884 | xfs_lsn_t lsn) | |
885 | { | |
886 | iip->ili_last_lsn = lsn; | |
887 | return; | |
888 | } | |
889 | ||
890 | /* | |
891 | * This is the ops vector shared by all buf log items. | |
892 | */ | |
7989cb8e | 893 | static struct xfs_item_ops xfs_inode_item_ops = { |
1da177e4 LT |
894 | .iop_size = (uint(*)(xfs_log_item_t*))xfs_inode_item_size, |
895 | .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) | |
896 | xfs_inode_item_format, | |
897 | .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin, | |
898 | .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin, | |
899 | .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) | |
900 | xfs_inode_item_unpin_remove, | |
901 | .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock, | |
902 | .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock, | |
903 | .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) | |
904 | xfs_inode_item_committed, | |
905 | .iop_push = (void(*)(xfs_log_item_t*))xfs_inode_item_push, | |
1da177e4 LT |
906 | .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf, |
907 | .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t)) | |
908 | xfs_inode_item_committing | |
909 | }; | |
910 | ||
911 | ||
912 | /* | |
913 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
914 | */ | |
915 | void | |
916 | xfs_inode_item_init( | |
917 | xfs_inode_t *ip, | |
918 | xfs_mount_t *mp) | |
919 | { | |
920 | xfs_inode_log_item_t *iip; | |
921 | ||
922 | ASSERT(ip->i_itemp == NULL); | |
923 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
924 | ||
925 | iip->ili_item.li_type = XFS_LI_INODE; | |
926 | iip->ili_item.li_ops = &xfs_inode_item_ops; | |
927 | iip->ili_item.li_mountp = mp; | |
fc1829f3 | 928 | iip->ili_item.li_ailp = mp->m_ail; |
1da177e4 LT |
929 | iip->ili_inode = ip; |
930 | ||
931 | /* | |
932 | We have zeroed memory. No need ... | |
933 | iip->ili_extents_buf = NULL; | |
934 | iip->ili_pushbuf_flag = 0; | |
935 | */ | |
936 | ||
937 | iip->ili_format.ilf_type = XFS_LI_INODE; | |
938 | iip->ili_format.ilf_ino = ip->i_ino; | |
92bfc6e7 CH |
939 | iip->ili_format.ilf_blkno = ip->i_imap.im_blkno; |
940 | iip->ili_format.ilf_len = ip->i_imap.im_len; | |
941 | iip->ili_format.ilf_boffset = ip->i_imap.im_boffset; | |
1da177e4 LT |
942 | } |
943 | ||
944 | /* | |
945 | * Free the inode log item and any memory hanging off of it. | |
946 | */ | |
947 | void | |
948 | xfs_inode_item_destroy( | |
949 | xfs_inode_t *ip) | |
950 | { | |
951 | #ifdef XFS_TRANS_DEBUG | |
952 | if (ip->i_itemp->ili_root_size != 0) { | |
f0e2d93c | 953 | kmem_free(ip->i_itemp->ili_orig_root); |
1da177e4 LT |
954 | } |
955 | #endif | |
956 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
957 | } | |
958 | ||
959 | ||
960 | /* | |
961 | * This is the inode flushing I/O completion routine. It is called | |
962 | * from interrupt level when the buffer containing the inode is | |
963 | * flushed to disk. It is responsible for removing the inode item | |
964 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
965 | * flush lock. | |
966 | */ | |
967 | /*ARGSUSED*/ | |
968 | void | |
969 | xfs_iflush_done( | |
970 | xfs_buf_t *bp, | |
971 | xfs_inode_log_item_t *iip) | |
972 | { | |
783a2f65 DC |
973 | xfs_inode_t *ip = iip->ili_inode; |
974 | struct xfs_ail *ailp = iip->ili_item.li_ailp; | |
1da177e4 LT |
975 | |
976 | /* | |
977 | * We only want to pull the item from the AIL if it is | |
978 | * actually there and its location in the log has not | |
979 | * changed since we started the flush. Thus, we only bother | |
980 | * if the ili_logged flag is set and the inode's lsn has not | |
981 | * changed. First we check the lsn outside | |
982 | * the lock since it's cheaper, and then we recheck while | |
983 | * holding the lock before removing the inode from the AIL. | |
984 | */ | |
985 | if (iip->ili_logged && | |
986 | (iip->ili_item.li_lsn == iip->ili_flush_lsn)) { | |
783a2f65 | 987 | spin_lock(&ailp->xa_lock); |
1da177e4 | 988 | if (iip->ili_item.li_lsn == iip->ili_flush_lsn) { |
783a2f65 DC |
989 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
990 | xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip); | |
1da177e4 | 991 | } else { |
783a2f65 | 992 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
993 | } |
994 | } | |
995 | ||
996 | iip->ili_logged = 0; | |
997 | ||
998 | /* | |
999 | * Clear the ili_last_fields bits now that we know that the | |
1000 | * data corresponding to them is safely on disk. | |
1001 | */ | |
1002 | iip->ili_last_fields = 0; | |
1003 | ||
1004 | /* | |
1005 | * Release the inode's flush lock since we're done with it. | |
1006 | */ | |
1007 | xfs_ifunlock(ip); | |
1008 | ||
1009 | return; | |
1010 | } | |
1011 | ||
1012 | /* | |
1013 | * This is the inode flushing abort routine. It is called | |
1014 | * from xfs_iflush when the filesystem is shutting down to clean | |
1015 | * up the inode state. | |
1016 | * It is responsible for removing the inode item | |
1017 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
1018 | * flush lock. | |
1019 | */ | |
1020 | void | |
1021 | xfs_iflush_abort( | |
1022 | xfs_inode_t *ip) | |
1023 | { | |
783a2f65 | 1024 | xfs_inode_log_item_t *iip = ip->i_itemp; |
1da177e4 | 1025 | xfs_mount_t *mp; |
1da177e4 LT |
1026 | |
1027 | iip = ip->i_itemp; | |
1028 | mp = ip->i_mount; | |
1029 | if (iip) { | |
783a2f65 | 1030 | struct xfs_ail *ailp = iip->ili_item.li_ailp; |
1da177e4 | 1031 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 1032 | spin_lock(&ailp->xa_lock); |
1da177e4 | 1033 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 DC |
1034 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
1035 | xfs_trans_ail_delete(ailp, (xfs_log_item_t *)iip); | |
1da177e4 | 1036 | } else |
783a2f65 | 1037 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
1038 | } |
1039 | iip->ili_logged = 0; | |
1040 | /* | |
1041 | * Clear the ili_last_fields bits now that we know that the | |
1042 | * data corresponding to them is safely on disk. | |
1043 | */ | |
1044 | iip->ili_last_fields = 0; | |
1045 | /* | |
1046 | * Clear the inode logging fields so no more flushes are | |
1047 | * attempted. | |
1048 | */ | |
1049 | iip->ili_format.ilf_fields = 0; | |
1050 | } | |
1051 | /* | |
1052 | * Release the inode's flush lock since we're done with it. | |
1053 | */ | |
1054 | xfs_ifunlock(ip); | |
1055 | } | |
1056 | ||
1057 | void | |
1058 | xfs_istale_done( | |
1059 | xfs_buf_t *bp, | |
1060 | xfs_inode_log_item_t *iip) | |
1061 | { | |
1062 | xfs_iflush_abort(iip->ili_inode); | |
1063 | } | |
6d192a9b TS |
1064 | |
1065 | /* | |
1066 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
1067 | * (which can have different field alignments) to the native version | |
1068 | */ | |
1069 | int | |
1070 | xfs_inode_item_format_convert( | |
1071 | xfs_log_iovec_t *buf, | |
1072 | xfs_inode_log_format_t *in_f) | |
1073 | { | |
1074 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
1075 | xfs_inode_log_format_32_t *in_f32; | |
1076 | ||
1077 | in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr; | |
1078 | in_f->ilf_type = in_f32->ilf_type; | |
1079 | in_f->ilf_size = in_f32->ilf_size; | |
1080 | in_f->ilf_fields = in_f32->ilf_fields; | |
1081 | in_f->ilf_asize = in_f32->ilf_asize; | |
1082 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
1083 | in_f->ilf_ino = in_f32->ilf_ino; | |
1084 | /* copy biggest field of ilf_u */ | |
1085 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1086 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
1087 | sizeof(uuid_t)); | |
1088 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
1089 | in_f->ilf_len = in_f32->ilf_len; | |
1090 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
1091 | return 0; | |
1092 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
1093 | xfs_inode_log_format_64_t *in_f64; | |
1094 | ||
1095 | in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr; | |
1096 | in_f->ilf_type = in_f64->ilf_type; | |
1097 | in_f->ilf_size = in_f64->ilf_size; | |
1098 | in_f->ilf_fields = in_f64->ilf_fields; | |
1099 | in_f->ilf_asize = in_f64->ilf_asize; | |
1100 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
1101 | in_f->ilf_ino = in_f64->ilf_ino; | |
1102 | /* copy biggest field of ilf_u */ | |
1103 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1104 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
1105 | sizeof(uuid_t)); | |
1106 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
1107 | in_f->ilf_len = in_f64->ilf_len; | |
1108 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
1109 | return 0; | |
1110 | } | |
1111 | return EFSCORRUPTED; | |
1112 | } |