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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 | 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 | ||
234 | /* | |
235 | * Clear i_update_core if the timestamps (or any other | |
236 | * non-transactional modification) need flushing/logging | |
237 | * and we're about to log them with the rest of the core. | |
238 | * | |
239 | * This is the same logic as xfs_iflush() but this code can't | |
240 | * run at the same time as xfs_iflush because we're in commit | |
241 | * processing here and so we have the inode lock held in | |
242 | * exclusive mode. Although it doesn't really matter | |
243 | * for the timestamps if both routines were to grab the | |
244 | * timestamps or not. That would be ok. | |
245 | * | |
246 | * We clear i_update_core before copying out the data. | |
247 | * This is for coordination with our timestamp updates | |
248 | * that don't hold the inode lock. They will always | |
249 | * update the timestamps BEFORE setting i_update_core, | |
250 | * so if we clear i_update_core after they set it we | |
251 | * are guaranteed to see their updates to the timestamps | |
252 | * either here. Likewise, if they set it after we clear it | |
253 | * here, we'll see it either on the next commit of this | |
254 | * inode or the next time the inode gets flushed via | |
255 | * xfs_iflush(). This depends on strongly ordered memory | |
256 | * semantics, but we have that. We use the SYNCHRONIZE | |
257 | * macro to make sure that the compiler does not reorder | |
258 | * the i_update_core access below the data copy below. | |
259 | */ | |
260 | if (ip->i_update_core) { | |
261 | ip->i_update_core = 0; | |
262 | SYNCHRONIZE(); | |
263 | } | |
264 | ||
265 | /* | |
266 | * We don't have to worry about re-ordering here because | |
267 | * the update_size field is protected by the inode lock | |
268 | * and we have that held in exclusive mode. | |
269 | */ | |
270 | if (ip->i_update_size) | |
271 | ip->i_update_size = 0; | |
272 | ||
42fe2b1f CH |
273 | /* |
274 | * Make sure to get the latest atime from the Linux inode. | |
275 | */ | |
276 | xfs_synchronize_atime(ip); | |
277 | ||
5d51eff4 DC |
278 | /* |
279 | * make sure the linux inode is dirty | |
280 | */ | |
281 | xfs_mark_inode_dirty_sync(ip); | |
282 | ||
1da177e4 | 283 | vecp->i_addr = (xfs_caddr_t)&ip->i_d; |
81591fe2 | 284 | vecp->i_len = sizeof(struct xfs_icdinode); |
7e9c6396 | 285 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE); |
1da177e4 LT |
286 | vecp++; |
287 | nvecs++; | |
288 | iip->ili_format.ilf_fields |= XFS_ILOG_CORE; | |
289 | ||
290 | /* | |
291 | * If this is really an old format inode, then we need to | |
292 | * log it as such. This means that we have to copy the link | |
293 | * count from the new field to the old. We don't have to worry | |
294 | * about the new fields, because nothing trusts them as long as | |
295 | * the old inode version number is there. If the superblock already | |
296 | * has a new version number, then we don't bother converting back. | |
297 | */ | |
298 | mp = ip->i_mount; | |
51ce16d5 CH |
299 | ASSERT(ip->i_d.di_version == 1 || xfs_sb_version_hasnlink(&mp->m_sb)); |
300 | if (ip->i_d.di_version == 1) { | |
62118709 | 301 | if (!xfs_sb_version_hasnlink(&mp->m_sb)) { |
1da177e4 LT |
302 | /* |
303 | * Convert it back. | |
304 | */ | |
305 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
306 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
307 | } else { | |
308 | /* | |
309 | * The superblock version has already been bumped, | |
310 | * so just make the conversion to the new inode | |
311 | * format permanent. | |
312 | */ | |
51ce16d5 | 313 | ip->i_d.di_version = 2; |
1da177e4 LT |
314 | ip->i_d.di_onlink = 0; |
315 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
316 | } | |
317 | } | |
318 | ||
319 | switch (ip->i_d.di_format) { | |
320 | case XFS_DINODE_FMT_EXTENTS: | |
321 | ASSERT(!(iip->ili_format.ilf_fields & | |
322 | (XFS_ILOG_DDATA | XFS_ILOG_DBROOT | | |
323 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
324 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEXT) { | |
325 | ASSERT(ip->i_df.if_bytes > 0); | |
326 | ASSERT(ip->i_df.if_u1.if_extents != NULL); | |
327 | ASSERT(ip->i_d.di_nextents > 0); | |
328 | ASSERT(iip->ili_extents_buf == NULL); | |
329 | nrecs = ip->i_df.if_bytes / | |
330 | (uint)sizeof(xfs_bmbt_rec_t); | |
331 | ASSERT(nrecs > 0); | |
f016bad6 | 332 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
333 | if (nrecs == ip->i_d.di_nextents) { |
334 | /* | |
335 | * There are no delayed allocation | |
336 | * extents, so just point to the | |
337 | * real extents array. | |
338 | */ | |
339 | vecp->i_addr = | |
340 | (char *)(ip->i_df.if_u1.if_extents); | |
341 | vecp->i_len = ip->i_df.if_bytes; | |
7e9c6396 | 342 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
343 | } else |
344 | #endif | |
345 | { | |
346 | /* | |
347 | * There are delayed allocation extents | |
348 | * in the inode, or we need to convert | |
349 | * the extents to on disk format. | |
350 | * Use xfs_iextents_copy() | |
351 | * to copy only the real extents into | |
352 | * a separate buffer. We'll free the | |
353 | * buffer in the unlock routine. | |
354 | */ | |
355 | ext_buffer = kmem_alloc(ip->i_df.if_bytes, | |
356 | KM_SLEEP); | |
357 | iip->ili_extents_buf = ext_buffer; | |
358 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
359 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
360 | XFS_DATA_FORK); | |
7e9c6396 | 361 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT); |
1da177e4 LT |
362 | } |
363 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
364 | iip->ili_format.ilf_dsize = vecp->i_len; | |
365 | vecp++; | |
366 | nvecs++; | |
367 | } | |
368 | break; | |
369 | ||
370 | case XFS_DINODE_FMT_BTREE: | |
371 | ASSERT(!(iip->ili_format.ilf_fields & | |
372 | (XFS_ILOG_DDATA | XFS_ILOG_DEXT | | |
373 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
374 | if (iip->ili_format.ilf_fields & XFS_ILOG_DBROOT) { | |
375 | ASSERT(ip->i_df.if_broot_bytes > 0); | |
376 | ASSERT(ip->i_df.if_broot != NULL); | |
377 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot; | |
378 | vecp->i_len = ip->i_df.if_broot_bytes; | |
7e9c6396 | 379 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IBROOT); |
1da177e4 LT |
380 | vecp++; |
381 | nvecs++; | |
382 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
383 | } | |
384 | break; | |
385 | ||
386 | case XFS_DINODE_FMT_LOCAL: | |
387 | ASSERT(!(iip->ili_format.ilf_fields & | |
388 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
389 | XFS_ILOG_DEV | XFS_ILOG_UUID))); | |
390 | if (iip->ili_format.ilf_fields & XFS_ILOG_DDATA) { | |
391 | ASSERT(ip->i_df.if_bytes > 0); | |
392 | ASSERT(ip->i_df.if_u1.if_data != NULL); | |
393 | ASSERT(ip->i_d.di_size > 0); | |
394 | ||
395 | vecp->i_addr = (xfs_caddr_t)ip->i_df.if_u1.if_data; | |
396 | /* | |
397 | * Round i_bytes up to a word boundary. | |
398 | * The underlying memory is guaranteed to | |
399 | * to be there by xfs_idata_realloc(). | |
400 | */ | |
401 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
402 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
403 | (ip->i_df.if_real_bytes == data_bytes)); | |
404 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 405 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ILOCAL); |
1da177e4 LT |
406 | vecp++; |
407 | nvecs++; | |
408 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
409 | } | |
410 | break; | |
411 | ||
412 | case XFS_DINODE_FMT_DEV: | |
413 | ASSERT(!(iip->ili_format.ilf_fields & | |
414 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
415 | XFS_ILOG_DDATA | XFS_ILOG_UUID))); | |
416 | if (iip->ili_format.ilf_fields & XFS_ILOG_DEV) { | |
417 | iip->ili_format.ilf_u.ilfu_rdev = | |
418 | ip->i_df.if_u2.if_rdev; | |
419 | } | |
420 | break; | |
421 | ||
422 | case XFS_DINODE_FMT_UUID: | |
423 | ASSERT(!(iip->ili_format.ilf_fields & | |
424 | (XFS_ILOG_DBROOT | XFS_ILOG_DEXT | | |
425 | XFS_ILOG_DDATA | XFS_ILOG_DEV))); | |
426 | if (iip->ili_format.ilf_fields & XFS_ILOG_UUID) { | |
427 | iip->ili_format.ilf_u.ilfu_uuid = | |
428 | ip->i_df.if_u2.if_uuid; | |
429 | } | |
430 | break; | |
431 | ||
432 | default: | |
433 | ASSERT(0); | |
434 | break; | |
435 | } | |
436 | ||
437 | /* | |
438 | * If there are no attributes associated with the file, | |
439 | * then we're done. | |
440 | * Assert that no attribute-related log flags are set. | |
441 | */ | |
442 | if (!XFS_IFORK_Q(ip)) { | |
443 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
444 | iip->ili_format.ilf_size = nvecs; | |
445 | ASSERT(!(iip->ili_format.ilf_fields & | |
446 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
447 | return; | |
448 | } | |
449 | ||
450 | switch (ip->i_d.di_aformat) { | |
451 | case XFS_DINODE_FMT_EXTENTS: | |
452 | ASSERT(!(iip->ili_format.ilf_fields & | |
453 | (XFS_ILOG_ADATA | XFS_ILOG_ABROOT))); | |
454 | if (iip->ili_format.ilf_fields & XFS_ILOG_AEXT) { | |
455 | ASSERT(ip->i_afp->if_bytes > 0); | |
456 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); | |
457 | ASSERT(ip->i_d.di_anextents > 0); | |
458 | #ifdef DEBUG | |
459 | nrecs = ip->i_afp->if_bytes / | |
460 | (uint)sizeof(xfs_bmbt_rec_t); | |
461 | #endif | |
462 | ASSERT(nrecs > 0); | |
463 | ASSERT(nrecs == ip->i_d.di_anextents); | |
f016bad6 | 464 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
465 | /* |
466 | * There are not delayed allocation extents | |
467 | * for attributes, so just point at the array. | |
468 | */ | |
469 | vecp->i_addr = (char *)(ip->i_afp->if_u1.if_extents); | |
470 | vecp->i_len = ip->i_afp->if_bytes; | |
471 | #else | |
472 | ASSERT(iip->ili_aextents_buf == NULL); | |
473 | /* | |
474 | * Need to endian flip before logging | |
475 | */ | |
476 | ext_buffer = kmem_alloc(ip->i_afp->if_bytes, | |
477 | KM_SLEEP); | |
478 | iip->ili_aextents_buf = ext_buffer; | |
479 | vecp->i_addr = (xfs_caddr_t)ext_buffer; | |
480 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, | |
481 | XFS_ATTR_FORK); | |
482 | #endif | |
7e9c6396 | 483 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_EXT); |
1da177e4 LT |
484 | iip->ili_format.ilf_asize = vecp->i_len; |
485 | vecp++; | |
486 | nvecs++; | |
487 | } | |
488 | break; | |
489 | ||
490 | case XFS_DINODE_FMT_BTREE: | |
491 | ASSERT(!(iip->ili_format.ilf_fields & | |
492 | (XFS_ILOG_ADATA | XFS_ILOG_AEXT))); | |
493 | if (iip->ili_format.ilf_fields & XFS_ILOG_ABROOT) { | |
494 | ASSERT(ip->i_afp->if_broot_bytes > 0); | |
495 | ASSERT(ip->i_afp->if_broot != NULL); | |
496 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot; | |
497 | vecp->i_len = ip->i_afp->if_broot_bytes; | |
7e9c6396 | 498 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_BROOT); |
1da177e4 LT |
499 | vecp++; |
500 | nvecs++; | |
501 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
502 | } | |
503 | break; | |
504 | ||
505 | case XFS_DINODE_FMT_LOCAL: | |
506 | ASSERT(!(iip->ili_format.ilf_fields & | |
507 | (XFS_ILOG_ABROOT | XFS_ILOG_AEXT))); | |
508 | if (iip->ili_format.ilf_fields & XFS_ILOG_ADATA) { | |
509 | ASSERT(ip->i_afp->if_bytes > 0); | |
510 | ASSERT(ip->i_afp->if_u1.if_data != NULL); | |
511 | ||
512 | vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_u1.if_data; | |
513 | /* | |
514 | * Round i_bytes up to a word boundary. | |
515 | * The underlying memory is guaranteed to | |
516 | * to be there by xfs_idata_realloc(). | |
517 | */ | |
518 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
519 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
520 | (ip->i_afp->if_real_bytes == data_bytes)); | |
521 | vecp->i_len = (int)data_bytes; | |
7e9c6396 | 522 | XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_LOCAL); |
1da177e4 LT |
523 | vecp++; |
524 | nvecs++; | |
525 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
526 | } | |
527 | break; | |
528 | ||
529 | default: | |
530 | ASSERT(0); | |
531 | break; | |
532 | } | |
533 | ||
534 | ASSERT(nvecs == iip->ili_item.li_desc->lid_size); | |
535 | iip->ili_format.ilf_size = nvecs; | |
536 | } | |
537 | ||
538 | ||
539 | /* | |
540 | * This is called to pin the inode associated with the inode log | |
541 | * item in memory so it cannot be written out. Do this by calling | |
542 | * xfs_ipin() to bump the pin count in the inode while holding the | |
543 | * inode pin lock. | |
544 | */ | |
545 | STATIC void | |
546 | xfs_inode_item_pin( | |
547 | xfs_inode_log_item_t *iip) | |
548 | { | |
579aa9ca | 549 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
1da177e4 LT |
550 | xfs_ipin(iip->ili_inode); |
551 | } | |
552 | ||
553 | ||
554 | /* | |
555 | * This is called to unpin the inode associated with the inode log | |
556 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
557 | * Just call xfs_iunpin() on the inode to do this. | |
558 | */ | |
559 | /* ARGSUSED */ | |
560 | STATIC void | |
561 | xfs_inode_item_unpin( | |
562 | xfs_inode_log_item_t *iip, | |
563 | int stale) | |
564 | { | |
565 | xfs_iunpin(iip->ili_inode); | |
566 | } | |
567 | ||
568 | /* ARGSUSED */ | |
569 | STATIC void | |
570 | xfs_inode_item_unpin_remove( | |
571 | xfs_inode_log_item_t *iip, | |
572 | xfs_trans_t *tp) | |
573 | { | |
574 | xfs_iunpin(iip->ili_inode); | |
575 | } | |
576 | ||
577 | /* | |
578 | * This is called to attempt to lock the inode associated with this | |
579 | * inode log item, in preparation for the push routine which does the actual | |
580 | * iflush. Don't sleep on the inode lock or the flush lock. | |
581 | * | |
582 | * If the flush lock is already held, indicating that the inode has | |
583 | * been or is in the process of being flushed, then (ideally) we'd like to | |
584 | * see if the inode's buffer is still incore, and if so give it a nudge. | |
585 | * We delay doing so until the pushbuf routine, though, to avoid holding | |
c41564b5 | 586 | * the AIL lock across a call to the blackhole which is the buffer cache. |
1da177e4 LT |
587 | * Also we don't want to sleep in any device strategy routines, which can happen |
588 | * if we do the subsequent bawrite in here. | |
589 | */ | |
590 | STATIC uint | |
591 | xfs_inode_item_trylock( | |
592 | xfs_inode_log_item_t *iip) | |
593 | { | |
594 | register xfs_inode_t *ip; | |
595 | ||
596 | ip = iip->ili_inode; | |
597 | ||
598 | if (xfs_ipincount(ip) > 0) { | |
599 | return XFS_ITEM_PINNED; | |
600 | } | |
601 | ||
602 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) { | |
603 | return XFS_ITEM_LOCKED; | |
604 | } | |
605 | ||
606 | if (!xfs_iflock_nowait(ip)) { | |
607 | /* | |
608 | * If someone else isn't already trying to push the inode | |
609 | * buffer, we get to do it. | |
610 | */ | |
611 | if (iip->ili_pushbuf_flag == 0) { | |
612 | iip->ili_pushbuf_flag = 1; | |
613 | #ifdef DEBUG | |
3762ec6b | 614 | iip->ili_push_owner = current_pid(); |
1da177e4 LT |
615 | #endif |
616 | /* | |
617 | * Inode is left locked in shared mode. | |
618 | * Pushbuf routine gets to unlock it. | |
619 | */ | |
620 | return XFS_ITEM_PUSHBUF; | |
621 | } else { | |
622 | /* | |
287f3dad | 623 | * We hold the AIL lock, so we must specify the |
1da177e4 LT |
624 | * NONOTIFY flag so that we won't double trip. |
625 | */ | |
626 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
627 | return XFS_ITEM_FLUSHING; | |
628 | } | |
629 | /* NOTREACHED */ | |
630 | } | |
631 | ||
632 | /* Stale items should force out the iclog */ | |
633 | if (ip->i_flags & XFS_ISTALE) { | |
634 | xfs_ifunlock(ip); | |
635 | xfs_iunlock(ip, XFS_ILOCK_SHARED|XFS_IUNLOCK_NONOTIFY); | |
636 | return XFS_ITEM_PINNED; | |
637 | } | |
638 | ||
639 | #ifdef DEBUG | |
640 | if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) { | |
641 | ASSERT(iip->ili_format.ilf_fields != 0); | |
642 | ASSERT(iip->ili_logged == 0); | |
643 | ASSERT(iip->ili_item.li_flags & XFS_LI_IN_AIL); | |
644 | } | |
645 | #endif | |
646 | return XFS_ITEM_SUCCESS; | |
647 | } | |
648 | ||
649 | /* | |
650 | * Unlock the inode associated with the inode log item. | |
651 | * Clear the fields of the inode and inode log item that | |
652 | * are specific to the current transaction. If the | |
653 | * hold flags is set, do not unlock the inode. | |
654 | */ | |
655 | STATIC void | |
656 | xfs_inode_item_unlock( | |
657 | xfs_inode_log_item_t *iip) | |
658 | { | |
659 | uint hold; | |
660 | uint iolocked; | |
661 | uint lock_flags; | |
662 | xfs_inode_t *ip; | |
663 | ||
664 | ASSERT(iip != NULL); | |
665 | ASSERT(iip->ili_inode->i_itemp != NULL); | |
579aa9ca | 666 | ASSERT(xfs_isilocked(iip->ili_inode, XFS_ILOCK_EXCL)); |
1da177e4 LT |
667 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
668 | XFS_ILI_IOLOCKED_EXCL)) || | |
579aa9ca | 669 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_EXCL)); |
1da177e4 LT |
670 | ASSERT((!(iip->ili_inode->i_itemp->ili_flags & |
671 | XFS_ILI_IOLOCKED_SHARED)) || | |
579aa9ca | 672 | xfs_isilocked(iip->ili_inode, XFS_IOLOCK_SHARED)); |
1da177e4 LT |
673 | /* |
674 | * Clear the transaction pointer in the inode. | |
675 | */ | |
676 | ip = iip->ili_inode; | |
677 | ip->i_transp = NULL; | |
678 | ||
679 | /* | |
680 | * If the inode needed a separate buffer with which to log | |
681 | * its extents, then free it now. | |
682 | */ | |
683 | if (iip->ili_extents_buf != NULL) { | |
684 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
685 | ASSERT(ip->i_d.di_nextents > 0); | |
686 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_DEXT); | |
687 | ASSERT(ip->i_df.if_bytes > 0); | |
f0e2d93c | 688 | kmem_free(iip->ili_extents_buf); |
1da177e4 LT |
689 | iip->ili_extents_buf = NULL; |
690 | } | |
691 | if (iip->ili_aextents_buf != NULL) { | |
692 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
693 | ASSERT(ip->i_d.di_anextents > 0); | |
694 | ASSERT(iip->ili_format.ilf_fields & XFS_ILOG_AEXT); | |
695 | ASSERT(ip->i_afp->if_bytes > 0); | |
f0e2d93c | 696 | kmem_free(iip->ili_aextents_buf); |
1da177e4 LT |
697 | iip->ili_aextents_buf = NULL; |
698 | } | |
699 | ||
700 | /* | |
701 | * Figure out if we should unlock the inode or not. | |
702 | */ | |
703 | hold = iip->ili_flags & XFS_ILI_HOLD; | |
704 | ||
705 | /* | |
706 | * Before clearing out the flags, remember whether we | |
707 | * are holding the inode's IO lock. | |
708 | */ | |
709 | iolocked = iip->ili_flags & XFS_ILI_IOLOCKED_ANY; | |
710 | ||
711 | /* | |
712 | * Clear out the fields of the inode log item particular | |
713 | * to the current transaction. | |
714 | */ | |
715 | iip->ili_ilock_recur = 0; | |
716 | iip->ili_iolock_recur = 0; | |
717 | iip->ili_flags = 0; | |
718 | ||
719 | /* | |
720 | * Unlock the inode if XFS_ILI_HOLD was not set. | |
721 | */ | |
722 | if (!hold) { | |
723 | lock_flags = XFS_ILOCK_EXCL; | |
724 | if (iolocked & XFS_ILI_IOLOCKED_EXCL) { | |
725 | lock_flags |= XFS_IOLOCK_EXCL; | |
726 | } else if (iolocked & XFS_ILI_IOLOCKED_SHARED) { | |
727 | lock_flags |= XFS_IOLOCK_SHARED; | |
728 | } | |
729 | xfs_iput(iip->ili_inode, lock_flags); | |
730 | } | |
731 | } | |
732 | ||
733 | /* | |
734 | * This is called to find out where the oldest active copy of the | |
735 | * inode log item in the on disk log resides now that the last log | |
736 | * write of it completed at the given lsn. Since we always re-log | |
737 | * all dirty data in an inode, the latest copy in the on disk log | |
738 | * is the only one that matters. Therefore, simply return the | |
739 | * given lsn. | |
740 | */ | |
741 | /*ARGSUSED*/ | |
742 | STATIC xfs_lsn_t | |
743 | xfs_inode_item_committed( | |
744 | xfs_inode_log_item_t *iip, | |
745 | xfs_lsn_t lsn) | |
746 | { | |
747 | return (lsn); | |
748 | } | |
749 | ||
1da177e4 LT |
750 | /* |
751 | * This gets called by xfs_trans_push_ail(), when IOP_TRYLOCK | |
752 | * failed to get the inode flush lock but did get the inode locked SHARED. | |
753 | * Here we're trying to see if the inode buffer is incore, and if so whether it's | |
754 | * marked delayed write. If that's the case, we'll initiate a bawrite on that | |
755 | * buffer to expedite the process. | |
756 | * | |
287f3dad | 757 | * We aren't holding the AIL lock (or the flush lock) when this gets called, |
1da177e4 LT |
758 | * so it is inherently race-y. |
759 | */ | |
760 | STATIC void | |
761 | xfs_inode_item_pushbuf( | |
762 | xfs_inode_log_item_t *iip) | |
763 | { | |
764 | xfs_inode_t *ip; | |
765 | xfs_mount_t *mp; | |
766 | xfs_buf_t *bp; | |
767 | uint dopush; | |
768 | ||
769 | ip = iip->ili_inode; | |
770 | ||
579aa9ca | 771 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
1da177e4 LT |
772 | |
773 | /* | |
774 | * The ili_pushbuf_flag keeps others from | |
775 | * trying to duplicate our effort. | |
776 | */ | |
777 | ASSERT(iip->ili_pushbuf_flag != 0); | |
3762ec6b | 778 | ASSERT(iip->ili_push_owner == current_pid()); |
1da177e4 LT |
779 | |
780 | /* | |
c63942d3 DC |
781 | * If a flush is not in progress anymore, chances are that the |
782 | * inode was taken off the AIL. So, just get out. | |
1da177e4 | 783 | */ |
c63942d3 | 784 | if (completion_done(&ip->i_flush) || |
1da177e4 LT |
785 | ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) { |
786 | iip->ili_pushbuf_flag = 0; | |
787 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
788 | return; | |
789 | } | |
790 | ||
791 | mp = ip->i_mount; | |
792 | bp = xfs_incore(mp->m_ddev_targp, iip->ili_format.ilf_blkno, | |
793 | iip->ili_format.ilf_len, XFS_INCORE_TRYLOCK); | |
794 | ||
795 | if (bp != NULL) { | |
796 | if (XFS_BUF_ISDELAYWRITE(bp)) { | |
797 | /* | |
798 | * We were racing with iflush because we don't hold | |
287f3dad | 799 | * the AIL lock or the flush lock. However, at this point, |
1da177e4 LT |
800 | * we have the buffer, and we know that it's dirty. |
801 | * So, it's possible that iflush raced with us, and | |
802 | * this item is already taken off the AIL. | |
803 | * If not, we can flush it async. | |
804 | */ | |
805 | dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) && | |
c63942d3 | 806 | !completion_done(&ip->i_flush)); |
1da177e4 LT |
807 | iip->ili_pushbuf_flag = 0; |
808 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
809 | xfs_buftrace("INODE ITEM PUSH", bp); | |
810 | if (XFS_BUF_ISPINNED(bp)) { | |
811 | xfs_log_force(mp, (xfs_lsn_t)0, | |
812 | XFS_LOG_FORCE); | |
813 | } | |
814 | if (dopush) { | |
db7a19f2 DC |
815 | int error; |
816 | error = xfs_bawrite(mp, bp); | |
817 | if (error) | |
818 | xfs_fs_cmn_err(CE_WARN, mp, | |
819 | "xfs_inode_item_pushbuf: pushbuf error %d on iip %p, bp %p", | |
820 | error, iip, bp); | |
1da177e4 LT |
821 | } else { |
822 | xfs_buf_relse(bp); | |
823 | } | |
824 | } else { | |
825 | iip->ili_pushbuf_flag = 0; | |
826 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
827 | xfs_buf_relse(bp); | |
828 | } | |
829 | return; | |
830 | } | |
831 | /* | |
832 | * We have to be careful about resetting pushbuf flag too early (above). | |
833 | * Even though in theory we can do it as soon as we have the buflock, | |
834 | * we don't want others to be doing work needlessly. They'll come to | |
835 | * this function thinking that pushing the buffer is their | |
836 | * responsibility only to find that the buffer is still locked by | |
837 | * another doing the same thing | |
838 | */ | |
839 | iip->ili_pushbuf_flag = 0; | |
840 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
841 | return; | |
842 | } | |
843 | ||
844 | ||
845 | /* | |
846 | * This is called to asynchronously write the inode associated with this | |
847 | * inode log item out to disk. The inode will already have been locked by | |
848 | * a successful call to xfs_inode_item_trylock(). | |
849 | */ | |
850 | STATIC void | |
851 | xfs_inode_item_push( | |
852 | xfs_inode_log_item_t *iip) | |
853 | { | |
854 | xfs_inode_t *ip; | |
855 | ||
856 | ip = iip->ili_inode; | |
857 | ||
579aa9ca | 858 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED)); |
c63942d3 | 859 | ASSERT(!completion_done(&ip->i_flush)); |
1da177e4 LT |
860 | /* |
861 | * Since we were able to lock the inode's flush lock and | |
862 | * we found it on the AIL, the inode must be dirty. This | |
863 | * is because the inode is removed from the AIL while still | |
864 | * holding the flush lock in xfs_iflush_done(). Thus, if | |
865 | * we found it in the AIL and were able to obtain the flush | |
866 | * lock without sleeping, then there must not have been | |
867 | * anyone in the process of flushing the inode. | |
868 | */ | |
869 | ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || | |
870 | iip->ili_format.ilf_fields != 0); | |
871 | ||
872 | /* | |
873 | * Write out the inode. The completion routine ('iflush_done') will | |
874 | * pull it from the AIL, mark it clean, unlock the flush lock. | |
875 | */ | |
876 | (void) xfs_iflush(ip, XFS_IFLUSH_ASYNC); | |
877 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
878 | ||
879 | return; | |
880 | } | |
881 | ||
882 | /* | |
883 | * XXX rcc - this one really has to do something. Probably needs | |
884 | * to stamp in a new field in the incore inode. | |
885 | */ | |
886 | /* ARGSUSED */ | |
887 | STATIC void | |
888 | xfs_inode_item_committing( | |
889 | xfs_inode_log_item_t *iip, | |
890 | xfs_lsn_t lsn) | |
891 | { | |
892 | iip->ili_last_lsn = lsn; | |
893 | return; | |
894 | } | |
895 | ||
896 | /* | |
897 | * This is the ops vector shared by all buf log items. | |
898 | */ | |
7989cb8e | 899 | static struct xfs_item_ops xfs_inode_item_ops = { |
1da177e4 LT |
900 | .iop_size = (uint(*)(xfs_log_item_t*))xfs_inode_item_size, |
901 | .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) | |
902 | xfs_inode_item_format, | |
903 | .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin, | |
904 | .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin, | |
905 | .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) | |
906 | xfs_inode_item_unpin_remove, | |
907 | .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock, | |
908 | .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock, | |
909 | .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) | |
910 | xfs_inode_item_committed, | |
911 | .iop_push = (void(*)(xfs_log_item_t*))xfs_inode_item_push, | |
1da177e4 LT |
912 | .iop_pushbuf = (void(*)(xfs_log_item_t*))xfs_inode_item_pushbuf, |
913 | .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t)) | |
914 | xfs_inode_item_committing | |
915 | }; | |
916 | ||
917 | ||
918 | /* | |
919 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
920 | */ | |
921 | void | |
922 | xfs_inode_item_init( | |
923 | xfs_inode_t *ip, | |
924 | xfs_mount_t *mp) | |
925 | { | |
926 | xfs_inode_log_item_t *iip; | |
927 | ||
928 | ASSERT(ip->i_itemp == NULL); | |
929 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
930 | ||
931 | iip->ili_item.li_type = XFS_LI_INODE; | |
932 | iip->ili_item.li_ops = &xfs_inode_item_ops; | |
933 | iip->ili_item.li_mountp = mp; | |
fc1829f3 | 934 | iip->ili_item.li_ailp = mp->m_ail; |
1da177e4 LT |
935 | iip->ili_inode = ip; |
936 | ||
937 | /* | |
938 | We have zeroed memory. No need ... | |
939 | iip->ili_extents_buf = NULL; | |
940 | iip->ili_pushbuf_flag = 0; | |
941 | */ | |
942 | ||
943 | iip->ili_format.ilf_type = XFS_LI_INODE; | |
944 | iip->ili_format.ilf_ino = ip->i_ino; | |
92bfc6e7 CH |
945 | iip->ili_format.ilf_blkno = ip->i_imap.im_blkno; |
946 | iip->ili_format.ilf_len = ip->i_imap.im_len; | |
947 | iip->ili_format.ilf_boffset = ip->i_imap.im_boffset; | |
1da177e4 LT |
948 | } |
949 | ||
950 | /* | |
951 | * Free the inode log item and any memory hanging off of it. | |
952 | */ | |
953 | void | |
954 | xfs_inode_item_destroy( | |
955 | xfs_inode_t *ip) | |
956 | { | |
957 | #ifdef XFS_TRANS_DEBUG | |
958 | if (ip->i_itemp->ili_root_size != 0) { | |
f0e2d93c | 959 | kmem_free(ip->i_itemp->ili_orig_root); |
1da177e4 LT |
960 | } |
961 | #endif | |
962 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
963 | } | |
964 | ||
965 | ||
966 | /* | |
967 | * This is the inode flushing I/O completion routine. It is called | |
968 | * from interrupt level when the buffer containing the inode is | |
969 | * flushed to disk. It is responsible for removing the inode item | |
970 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
971 | * flush lock. | |
972 | */ | |
973 | /*ARGSUSED*/ | |
974 | void | |
975 | xfs_iflush_done( | |
976 | xfs_buf_t *bp, | |
977 | xfs_inode_log_item_t *iip) | |
978 | { | |
783a2f65 DC |
979 | xfs_inode_t *ip = iip->ili_inode; |
980 | struct xfs_ail *ailp = iip->ili_item.li_ailp; | |
1da177e4 LT |
981 | |
982 | /* | |
983 | * We only want to pull the item from the AIL if it is | |
984 | * actually there and its location in the log has not | |
985 | * changed since we started the flush. Thus, we only bother | |
986 | * if the ili_logged flag is set and the inode's lsn has not | |
987 | * changed. First we check the lsn outside | |
988 | * the lock since it's cheaper, and then we recheck while | |
989 | * holding the lock before removing the inode from the AIL. | |
990 | */ | |
991 | if (iip->ili_logged && | |
992 | (iip->ili_item.li_lsn == iip->ili_flush_lsn)) { | |
783a2f65 | 993 | spin_lock(&ailp->xa_lock); |
1da177e4 | 994 | if (iip->ili_item.li_lsn == iip->ili_flush_lsn) { |
783a2f65 DC |
995 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
996 | xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip); | |
1da177e4 | 997 | } else { |
783a2f65 | 998 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
999 | } |
1000 | } | |
1001 | ||
1002 | iip->ili_logged = 0; | |
1003 | ||
1004 | /* | |
1005 | * Clear the ili_last_fields bits now that we know that the | |
1006 | * data corresponding to them is safely on disk. | |
1007 | */ | |
1008 | iip->ili_last_fields = 0; | |
1009 | ||
1010 | /* | |
1011 | * Release the inode's flush lock since we're done with it. | |
1012 | */ | |
1013 | xfs_ifunlock(ip); | |
1014 | ||
1015 | return; | |
1016 | } | |
1017 | ||
1018 | /* | |
1019 | * This is the inode flushing abort routine. It is called | |
1020 | * from xfs_iflush when the filesystem is shutting down to clean | |
1021 | * up the inode state. | |
1022 | * It is responsible for removing the inode item | |
1023 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
1024 | * flush lock. | |
1025 | */ | |
1026 | void | |
1027 | xfs_iflush_abort( | |
1028 | xfs_inode_t *ip) | |
1029 | { | |
783a2f65 | 1030 | xfs_inode_log_item_t *iip = ip->i_itemp; |
1da177e4 | 1031 | xfs_mount_t *mp; |
1da177e4 LT |
1032 | |
1033 | iip = ip->i_itemp; | |
1034 | mp = ip->i_mount; | |
1035 | if (iip) { | |
783a2f65 | 1036 | struct xfs_ail *ailp = iip->ili_item.li_ailp; |
1da177e4 | 1037 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 1038 | spin_lock(&ailp->xa_lock); |
1da177e4 | 1039 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 DC |
1040 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
1041 | xfs_trans_ail_delete(ailp, (xfs_log_item_t *)iip); | |
1da177e4 | 1042 | } else |
783a2f65 | 1043 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
1044 | } |
1045 | iip->ili_logged = 0; | |
1046 | /* | |
1047 | * Clear the ili_last_fields bits now that we know that the | |
1048 | * data corresponding to them is safely on disk. | |
1049 | */ | |
1050 | iip->ili_last_fields = 0; | |
1051 | /* | |
1052 | * Clear the inode logging fields so no more flushes are | |
1053 | * attempted. | |
1054 | */ | |
1055 | iip->ili_format.ilf_fields = 0; | |
1056 | } | |
1057 | /* | |
1058 | * Release the inode's flush lock since we're done with it. | |
1059 | */ | |
1060 | xfs_ifunlock(ip); | |
1061 | } | |
1062 | ||
1063 | void | |
1064 | xfs_istale_done( | |
1065 | xfs_buf_t *bp, | |
1066 | xfs_inode_log_item_t *iip) | |
1067 | { | |
1068 | xfs_iflush_abort(iip->ili_inode); | |
1069 | } | |
6d192a9b TS |
1070 | |
1071 | /* | |
1072 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
1073 | * (which can have different field alignments) to the native version | |
1074 | */ | |
1075 | int | |
1076 | xfs_inode_item_format_convert( | |
1077 | xfs_log_iovec_t *buf, | |
1078 | xfs_inode_log_format_t *in_f) | |
1079 | { | |
1080 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
1081 | xfs_inode_log_format_32_t *in_f32; | |
1082 | ||
1083 | in_f32 = (xfs_inode_log_format_32_t *)buf->i_addr; | |
1084 | in_f->ilf_type = in_f32->ilf_type; | |
1085 | in_f->ilf_size = in_f32->ilf_size; | |
1086 | in_f->ilf_fields = in_f32->ilf_fields; | |
1087 | in_f->ilf_asize = in_f32->ilf_asize; | |
1088 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
1089 | in_f->ilf_ino = in_f32->ilf_ino; | |
1090 | /* copy biggest field of ilf_u */ | |
1091 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1092 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
1093 | sizeof(uuid_t)); | |
1094 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
1095 | in_f->ilf_len = in_f32->ilf_len; | |
1096 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
1097 | return 0; | |
1098 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
1099 | xfs_inode_log_format_64_t *in_f64; | |
1100 | ||
1101 | in_f64 = (xfs_inode_log_format_64_t *)buf->i_addr; | |
1102 | in_f->ilf_type = in_f64->ilf_type; | |
1103 | in_f->ilf_size = in_f64->ilf_size; | |
1104 | in_f->ilf_fields = in_f64->ilf_fields; | |
1105 | in_f->ilf_asize = in_f64->ilf_asize; | |
1106 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
1107 | in_f->ilf_ino = in_f64->ilf_ino; | |
1108 | /* copy biggest field of ilf_u */ | |
1109 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
1110 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
1111 | sizeof(uuid_t)); | |
1112 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
1113 | in_f->ilf_len = in_f64->ilf_len; | |
1114 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
1115 | return 0; | |
1116 | } | |
1117 | return EFSCORRUPTED; | |
1118 | } |