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 LT |
22 | #include "xfs_log.h" |
23 | #include "xfs_trans.h" | |
1da177e4 | 24 | #include "xfs_sb.h" |
a844f451 | 25 | #include "xfs_ag.h" |
1da177e4 LT |
26 | #include "xfs_mount.h" |
27 | #include "xfs_trans_priv.h" | |
1da177e4 | 28 | #include "xfs_bmap_btree.h" |
1da177e4 | 29 | #include "xfs_dinode.h" |
1da177e4 | 30 | #include "xfs_inode.h" |
a844f451 | 31 | #include "xfs_inode_item.h" |
db7a19f2 | 32 | #include "xfs_error.h" |
0b1b213f | 33 | #include "xfs_trace.h" |
1da177e4 LT |
34 | |
35 | ||
36 | kmem_zone_t *xfs_ili_zone; /* inode log item zone */ | |
37 | ||
7bfa31d8 CH |
38 | static inline struct xfs_inode_log_item *INODE_ITEM(struct xfs_log_item *lip) |
39 | { | |
40 | return container_of(lip, struct xfs_inode_log_item, ili_item); | |
41 | } | |
42 | ||
43 | ||
1da177e4 LT |
44 | /* |
45 | * This returns the number of iovecs needed to log the given inode item. | |
46 | * | |
47 | * We need one iovec for the inode log format structure, one for the | |
48 | * inode core, and possibly one for the inode data/extents/b-tree root | |
49 | * and one for the inode attribute data/extents/b-tree root. | |
50 | */ | |
51 | STATIC uint | |
52 | xfs_inode_item_size( | |
7bfa31d8 | 53 | struct xfs_log_item *lip) |
1da177e4 | 54 | { |
7bfa31d8 CH |
55 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
56 | struct xfs_inode *ip = iip->ili_inode; | |
57 | uint nvecs = 2; | |
1da177e4 | 58 | |
1da177e4 LT |
59 | switch (ip->i_d.di_format) { |
60 | case XFS_DINODE_FMT_EXTENTS: | |
f5d8d5c4 | 61 | if ((iip->ili_fields & XFS_ILOG_DEXT) && |
339a5f5d CH |
62 | ip->i_d.di_nextents > 0 && |
63 | ip->i_df.if_bytes > 0) | |
1da177e4 | 64 | nvecs++; |
1da177e4 LT |
65 | break; |
66 | ||
67 | case XFS_DINODE_FMT_BTREE: | |
f5d8d5c4 | 68 | if ((iip->ili_fields & XFS_ILOG_DBROOT) && |
339a5f5d | 69 | ip->i_df.if_broot_bytes > 0) |
1da177e4 | 70 | nvecs++; |
1da177e4 LT |
71 | break; |
72 | ||
73 | case XFS_DINODE_FMT_LOCAL: | |
f5d8d5c4 | 74 | if ((iip->ili_fields & XFS_ILOG_DDATA) && |
339a5f5d | 75 | ip->i_df.if_bytes > 0) |
1da177e4 | 76 | nvecs++; |
1da177e4 LT |
77 | break; |
78 | ||
79 | case XFS_DINODE_FMT_DEV: | |
1da177e4 | 80 | case XFS_DINODE_FMT_UUID: |
1da177e4 LT |
81 | break; |
82 | ||
83 | default: | |
84 | ASSERT(0); | |
85 | break; | |
86 | } | |
87 | ||
339a5f5d | 88 | if (!XFS_IFORK_Q(ip)) |
1da177e4 | 89 | return nvecs; |
339a5f5d | 90 | |
1da177e4 LT |
91 | |
92 | /* | |
93 | * Log any necessary attribute data. | |
94 | */ | |
95 | switch (ip->i_d.di_aformat) { | |
96 | case XFS_DINODE_FMT_EXTENTS: | |
f5d8d5c4 | 97 | if ((iip->ili_fields & XFS_ILOG_AEXT) && |
339a5f5d CH |
98 | ip->i_d.di_anextents > 0 && |
99 | ip->i_afp->if_bytes > 0) | |
1da177e4 | 100 | nvecs++; |
1da177e4 LT |
101 | break; |
102 | ||
103 | case XFS_DINODE_FMT_BTREE: | |
f5d8d5c4 | 104 | if ((iip->ili_fields & XFS_ILOG_ABROOT) && |
339a5f5d | 105 | ip->i_afp->if_broot_bytes > 0) |
1da177e4 | 106 | nvecs++; |
1da177e4 LT |
107 | break; |
108 | ||
109 | case XFS_DINODE_FMT_LOCAL: | |
f5d8d5c4 | 110 | if ((iip->ili_fields & XFS_ILOG_ADATA) && |
339a5f5d | 111 | ip->i_afp->if_bytes > 0) |
1da177e4 | 112 | nvecs++; |
1da177e4 LT |
113 | break; |
114 | ||
115 | default: | |
116 | ASSERT(0); | |
117 | break; | |
118 | } | |
119 | ||
120 | return nvecs; | |
121 | } | |
122 | ||
e828776a DC |
123 | /* |
124 | * xfs_inode_item_format_extents - convert in-core extents to on-disk form | |
125 | * | |
126 | * For either the data or attr fork in extent format, we need to endian convert | |
127 | * the in-core extent as we place them into the on-disk inode. In this case, we | |
128 | * need to do this conversion before we write the extents into the log. Because | |
129 | * we don't have the disk inode to write into here, we allocate a buffer and | |
130 | * format the extents into it via xfs_iextents_copy(). We free the buffer in | |
131 | * the unlock routine after the copy for the log has been made. | |
132 | * | |
133 | * In the case of the data fork, the in-core and on-disk fork sizes can be | |
134 | * different due to delayed allocation extents. We only log on-disk extents | |
135 | * here, so always use the physical fork size to determine the size of the | |
136 | * buffer we need to allocate. | |
137 | */ | |
138 | STATIC void | |
139 | xfs_inode_item_format_extents( | |
140 | struct xfs_inode *ip, | |
141 | struct xfs_log_iovec *vecp, | |
142 | int whichfork, | |
143 | int type) | |
144 | { | |
145 | xfs_bmbt_rec_t *ext_buffer; | |
146 | ||
147 | ext_buffer = kmem_alloc(XFS_IFORK_SIZE(ip, whichfork), KM_SLEEP); | |
148 | if (whichfork == XFS_DATA_FORK) | |
149 | ip->i_itemp->ili_extents_buf = ext_buffer; | |
150 | else | |
151 | ip->i_itemp->ili_aextents_buf = ext_buffer; | |
152 | ||
153 | vecp->i_addr = ext_buffer; | |
154 | vecp->i_len = xfs_iextents_copy(ip, ext_buffer, whichfork); | |
155 | vecp->i_type = type; | |
156 | } | |
157 | ||
1da177e4 LT |
158 | /* |
159 | * This is called to fill in the vector of log iovecs for the | |
160 | * given inode log item. It fills the first item with an inode | |
161 | * log format structure, the second with the on-disk inode structure, | |
162 | * and a possible third and/or fourth with the inode data/extents/b-tree | |
163 | * root and inode attributes data/extents/b-tree root. | |
164 | */ | |
165 | STATIC void | |
166 | xfs_inode_item_format( | |
7bfa31d8 CH |
167 | struct xfs_log_item *lip, |
168 | struct xfs_log_iovec *vecp) | |
1da177e4 | 169 | { |
7bfa31d8 CH |
170 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
171 | struct xfs_inode *ip = iip->ili_inode; | |
1da177e4 | 172 | uint nvecs; |
1da177e4 | 173 | size_t data_bytes; |
1da177e4 LT |
174 | xfs_mount_t *mp; |
175 | ||
4e0d5f92 | 176 | vecp->i_addr = &iip->ili_format; |
1da177e4 | 177 | vecp->i_len = sizeof(xfs_inode_log_format_t); |
4139b3b3 | 178 | vecp->i_type = XLOG_REG_TYPE_IFORMAT; |
1da177e4 LT |
179 | vecp++; |
180 | nvecs = 1; | |
181 | ||
4e0d5f92 | 182 | vecp->i_addr = &ip->i_d; |
81591fe2 | 183 | vecp->i_len = sizeof(struct xfs_icdinode); |
4139b3b3 | 184 | vecp->i_type = XLOG_REG_TYPE_ICORE; |
1da177e4 LT |
185 | vecp++; |
186 | nvecs++; | |
1da177e4 LT |
187 | |
188 | /* | |
189 | * If this is really an old format inode, then we need to | |
190 | * log it as such. This means that we have to copy the link | |
191 | * count from the new field to the old. We don't have to worry | |
192 | * about the new fields, because nothing trusts them as long as | |
193 | * the old inode version number is there. If the superblock already | |
194 | * has a new version number, then we don't bother converting back. | |
195 | */ | |
196 | mp = ip->i_mount; | |
51ce16d5 CH |
197 | ASSERT(ip->i_d.di_version == 1 || xfs_sb_version_hasnlink(&mp->m_sb)); |
198 | if (ip->i_d.di_version == 1) { | |
62118709 | 199 | if (!xfs_sb_version_hasnlink(&mp->m_sb)) { |
1da177e4 LT |
200 | /* |
201 | * Convert it back. | |
202 | */ | |
203 | ASSERT(ip->i_d.di_nlink <= XFS_MAXLINK_1); | |
204 | ip->i_d.di_onlink = ip->i_d.di_nlink; | |
205 | } else { | |
206 | /* | |
207 | * The superblock version has already been bumped, | |
208 | * so just make the conversion to the new inode | |
209 | * format permanent. | |
210 | */ | |
51ce16d5 | 211 | ip->i_d.di_version = 2; |
1da177e4 LT |
212 | ip->i_d.di_onlink = 0; |
213 | memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); | |
214 | } | |
215 | } | |
216 | ||
217 | switch (ip->i_d.di_format) { | |
218 | case XFS_DINODE_FMT_EXTENTS: | |
f5d8d5c4 | 219 | iip->ili_fields &= |
339a5f5d CH |
220 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | |
221 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
222 | ||
f5d8d5c4 | 223 | if ((iip->ili_fields & XFS_ILOG_DEXT) && |
339a5f5d CH |
224 | ip->i_d.di_nextents > 0 && |
225 | ip->i_df.if_bytes > 0) { | |
1da177e4 | 226 | ASSERT(ip->i_df.if_u1.if_extents != NULL); |
339a5f5d | 227 | ASSERT(ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) > 0); |
1da177e4 | 228 | ASSERT(iip->ili_extents_buf == NULL); |
339a5f5d | 229 | |
f016bad6 | 230 | #ifdef XFS_NATIVE_HOST |
696123fc DC |
231 | if (ip->i_d.di_nextents == ip->i_df.if_bytes / |
232 | (uint)sizeof(xfs_bmbt_rec_t)) { | |
1da177e4 LT |
233 | /* |
234 | * There are no delayed allocation | |
235 | * extents, so just point to the | |
236 | * real extents array. | |
237 | */ | |
4e0d5f92 | 238 | vecp->i_addr = ip->i_df.if_u1.if_extents; |
1da177e4 | 239 | vecp->i_len = ip->i_df.if_bytes; |
4139b3b3 | 240 | vecp->i_type = XLOG_REG_TYPE_IEXT; |
1da177e4 LT |
241 | } else |
242 | #endif | |
243 | { | |
e828776a DC |
244 | xfs_inode_item_format_extents(ip, vecp, |
245 | XFS_DATA_FORK, XLOG_REG_TYPE_IEXT); | |
1da177e4 LT |
246 | } |
247 | ASSERT(vecp->i_len <= ip->i_df.if_bytes); | |
248 | iip->ili_format.ilf_dsize = vecp->i_len; | |
249 | vecp++; | |
250 | nvecs++; | |
339a5f5d | 251 | } else { |
f5d8d5c4 | 252 | iip->ili_fields &= ~XFS_ILOG_DEXT; |
1da177e4 LT |
253 | } |
254 | break; | |
255 | ||
256 | case XFS_DINODE_FMT_BTREE: | |
f5d8d5c4 | 257 | iip->ili_fields &= |
339a5f5d CH |
258 | ~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | |
259 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
260 | ||
f5d8d5c4 | 261 | if ((iip->ili_fields & XFS_ILOG_DBROOT) && |
339a5f5d | 262 | ip->i_df.if_broot_bytes > 0) { |
1da177e4 | 263 | ASSERT(ip->i_df.if_broot != NULL); |
4e0d5f92 | 264 | vecp->i_addr = ip->i_df.if_broot; |
1da177e4 | 265 | vecp->i_len = ip->i_df.if_broot_bytes; |
4139b3b3 | 266 | vecp->i_type = XLOG_REG_TYPE_IBROOT; |
1da177e4 LT |
267 | vecp++; |
268 | nvecs++; | |
269 | iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes; | |
339a5f5d | 270 | } else { |
f5d8d5c4 | 271 | ASSERT(!(iip->ili_fields & |
339a5f5d CH |
272 | XFS_ILOG_DBROOT)); |
273 | #ifdef XFS_TRANS_DEBUG | |
274 | if (iip->ili_root_size > 0) { | |
275 | ASSERT(iip->ili_root_size == | |
276 | ip->i_df.if_broot_bytes); | |
277 | ASSERT(memcmp(iip->ili_orig_root, | |
278 | ip->i_df.if_broot, | |
279 | iip->ili_root_size) == 0); | |
280 | } else { | |
281 | ASSERT(ip->i_df.if_broot_bytes == 0); | |
282 | } | |
283 | #endif | |
f5d8d5c4 | 284 | iip->ili_fields &= ~XFS_ILOG_DBROOT; |
1da177e4 LT |
285 | } |
286 | break; | |
287 | ||
288 | case XFS_DINODE_FMT_LOCAL: | |
f5d8d5c4 | 289 | iip->ili_fields &= |
339a5f5d CH |
290 | ~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | |
291 | XFS_ILOG_DEV | XFS_ILOG_UUID); | |
f5d8d5c4 | 292 | if ((iip->ili_fields & XFS_ILOG_DDATA) && |
339a5f5d | 293 | ip->i_df.if_bytes > 0) { |
1da177e4 LT |
294 | ASSERT(ip->i_df.if_u1.if_data != NULL); |
295 | ASSERT(ip->i_d.di_size > 0); | |
296 | ||
4e0d5f92 | 297 | vecp->i_addr = ip->i_df.if_u1.if_data; |
1da177e4 LT |
298 | /* |
299 | * Round i_bytes up to a word boundary. | |
300 | * The underlying memory is guaranteed to | |
301 | * to be there by xfs_idata_realloc(). | |
302 | */ | |
303 | data_bytes = roundup(ip->i_df.if_bytes, 4); | |
304 | ASSERT((ip->i_df.if_real_bytes == 0) || | |
305 | (ip->i_df.if_real_bytes == data_bytes)); | |
306 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 307 | vecp->i_type = XLOG_REG_TYPE_ILOCAL; |
1da177e4 LT |
308 | vecp++; |
309 | nvecs++; | |
310 | iip->ili_format.ilf_dsize = (unsigned)data_bytes; | |
339a5f5d | 311 | } else { |
f5d8d5c4 | 312 | iip->ili_fields &= ~XFS_ILOG_DDATA; |
1da177e4 LT |
313 | } |
314 | break; | |
315 | ||
316 | case XFS_DINODE_FMT_DEV: | |
f5d8d5c4 | 317 | iip->ili_fields &= |
339a5f5d CH |
318 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | |
319 | XFS_ILOG_DEXT | XFS_ILOG_UUID); | |
f5d8d5c4 | 320 | if (iip->ili_fields & XFS_ILOG_DEV) { |
1da177e4 LT |
321 | iip->ili_format.ilf_u.ilfu_rdev = |
322 | ip->i_df.if_u2.if_rdev; | |
323 | } | |
324 | break; | |
325 | ||
326 | case XFS_DINODE_FMT_UUID: | |
f5d8d5c4 | 327 | iip->ili_fields &= |
339a5f5d CH |
328 | ~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | |
329 | XFS_ILOG_DEXT | XFS_ILOG_DEV); | |
f5d8d5c4 | 330 | if (iip->ili_fields & XFS_ILOG_UUID) { |
1da177e4 LT |
331 | iip->ili_format.ilf_u.ilfu_uuid = |
332 | ip->i_df.if_u2.if_uuid; | |
333 | } | |
334 | break; | |
335 | ||
336 | default: | |
337 | ASSERT(0); | |
338 | break; | |
339 | } | |
340 | ||
341 | /* | |
339a5f5d | 342 | * If there are no attributes associated with the file, then we're done. |
1da177e4 LT |
343 | */ |
344 | if (!XFS_IFORK_Q(ip)) { | |
f5d8d5c4 | 345 | iip->ili_fields &= |
339a5f5d | 346 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT | XFS_ILOG_AEXT); |
f5d8d5c4 | 347 | goto out; |
1da177e4 LT |
348 | } |
349 | ||
350 | switch (ip->i_d.di_aformat) { | |
351 | case XFS_DINODE_FMT_EXTENTS: | |
f5d8d5c4 | 352 | iip->ili_fields &= |
339a5f5d CH |
353 | ~(XFS_ILOG_ADATA | XFS_ILOG_ABROOT); |
354 | ||
f5d8d5c4 | 355 | if ((iip->ili_fields & XFS_ILOG_AEXT) && |
339a5f5d CH |
356 | ip->i_d.di_anextents > 0 && |
357 | ip->i_afp->if_bytes > 0) { | |
358 | ASSERT(ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) == | |
359 | ip->i_d.di_anextents); | |
73523a2e | 360 | ASSERT(ip->i_afp->if_u1.if_extents != NULL); |
f016bad6 | 361 | #ifdef XFS_NATIVE_HOST |
1da177e4 LT |
362 | /* |
363 | * There are not delayed allocation extents | |
364 | * for attributes, so just point at the array. | |
365 | */ | |
4e0d5f92 | 366 | vecp->i_addr = ip->i_afp->if_u1.if_extents; |
1da177e4 | 367 | vecp->i_len = ip->i_afp->if_bytes; |
e828776a | 368 | vecp->i_type = XLOG_REG_TYPE_IATTR_EXT; |
1da177e4 LT |
369 | #else |
370 | ASSERT(iip->ili_aextents_buf == NULL); | |
e828776a DC |
371 | xfs_inode_item_format_extents(ip, vecp, |
372 | XFS_ATTR_FORK, XLOG_REG_TYPE_IATTR_EXT); | |
1da177e4 LT |
373 | #endif |
374 | iip->ili_format.ilf_asize = vecp->i_len; | |
375 | vecp++; | |
376 | nvecs++; | |
339a5f5d | 377 | } else { |
f5d8d5c4 | 378 | iip->ili_fields &= ~XFS_ILOG_AEXT; |
1da177e4 LT |
379 | } |
380 | break; | |
381 | ||
382 | case XFS_DINODE_FMT_BTREE: | |
f5d8d5c4 | 383 | iip->ili_fields &= |
339a5f5d CH |
384 | ~(XFS_ILOG_ADATA | XFS_ILOG_AEXT); |
385 | ||
f5d8d5c4 | 386 | if ((iip->ili_fields & XFS_ILOG_ABROOT) && |
339a5f5d | 387 | ip->i_afp->if_broot_bytes > 0) { |
1da177e4 | 388 | ASSERT(ip->i_afp->if_broot != NULL); |
339a5f5d | 389 | |
4e0d5f92 | 390 | vecp->i_addr = ip->i_afp->if_broot; |
1da177e4 | 391 | vecp->i_len = ip->i_afp->if_broot_bytes; |
4139b3b3 | 392 | vecp->i_type = XLOG_REG_TYPE_IATTR_BROOT; |
1da177e4 LT |
393 | vecp++; |
394 | nvecs++; | |
395 | iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes; | |
339a5f5d | 396 | } else { |
f5d8d5c4 | 397 | iip->ili_fields &= ~XFS_ILOG_ABROOT; |
1da177e4 LT |
398 | } |
399 | break; | |
400 | ||
401 | case XFS_DINODE_FMT_LOCAL: | |
f5d8d5c4 | 402 | iip->ili_fields &= |
339a5f5d CH |
403 | ~(XFS_ILOG_AEXT | XFS_ILOG_ABROOT); |
404 | ||
f5d8d5c4 | 405 | if ((iip->ili_fields & XFS_ILOG_ADATA) && |
339a5f5d | 406 | ip->i_afp->if_bytes > 0) { |
1da177e4 LT |
407 | ASSERT(ip->i_afp->if_u1.if_data != NULL); |
408 | ||
4e0d5f92 | 409 | vecp->i_addr = ip->i_afp->if_u1.if_data; |
1da177e4 LT |
410 | /* |
411 | * Round i_bytes up to a word boundary. | |
412 | * The underlying memory is guaranteed to | |
413 | * to be there by xfs_idata_realloc(). | |
414 | */ | |
415 | data_bytes = roundup(ip->i_afp->if_bytes, 4); | |
416 | ASSERT((ip->i_afp->if_real_bytes == 0) || | |
417 | (ip->i_afp->if_real_bytes == data_bytes)); | |
418 | vecp->i_len = (int)data_bytes; | |
4139b3b3 | 419 | vecp->i_type = XLOG_REG_TYPE_IATTR_LOCAL; |
1da177e4 LT |
420 | vecp++; |
421 | nvecs++; | |
422 | iip->ili_format.ilf_asize = (unsigned)data_bytes; | |
339a5f5d | 423 | } else { |
f5d8d5c4 | 424 | iip->ili_fields &= ~XFS_ILOG_ADATA; |
1da177e4 LT |
425 | } |
426 | break; | |
427 | ||
428 | default: | |
429 | ASSERT(0); | |
430 | break; | |
431 | } | |
432 | ||
f5d8d5c4 CH |
433 | out: |
434 | /* | |
435 | * Now update the log format that goes out to disk from the in-core | |
436 | * values. We always write the inode core to make the arithmetic | |
437 | * games in recovery easier, which isn't a big deal as just about any | |
438 | * transaction would dirty it anyway. | |
439 | */ | |
8f639dde CH |
440 | iip->ili_format.ilf_fields = XFS_ILOG_CORE | |
441 | (iip->ili_fields & ~XFS_ILOG_TIMESTAMP); | |
1da177e4 LT |
442 | iip->ili_format.ilf_size = nvecs; |
443 | } | |
444 | ||
445 | ||
446 | /* | |
447 | * This is called to pin the inode associated with the inode log | |
a14a5ab5 | 448 | * item in memory so it cannot be written out. |
1da177e4 LT |
449 | */ |
450 | STATIC void | |
451 | xfs_inode_item_pin( | |
7bfa31d8 | 452 | struct xfs_log_item *lip) |
1da177e4 | 453 | { |
7bfa31d8 | 454 | struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode; |
a14a5ab5 | 455 | |
7bfa31d8 CH |
456 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
457 | ||
458 | trace_xfs_inode_pin(ip, _RET_IP_); | |
459 | atomic_inc(&ip->i_pincount); | |
1da177e4 LT |
460 | } |
461 | ||
462 | ||
463 | /* | |
464 | * This is called to unpin the inode associated with the inode log | |
465 | * item which was previously pinned with a call to xfs_inode_item_pin(). | |
a14a5ab5 CH |
466 | * |
467 | * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0. | |
1da177e4 | 468 | */ |
1da177e4 LT |
469 | STATIC void |
470 | xfs_inode_item_unpin( | |
7bfa31d8 | 471 | struct xfs_log_item *lip, |
9412e318 | 472 | int remove) |
1da177e4 | 473 | { |
7bfa31d8 | 474 | struct xfs_inode *ip = INODE_ITEM(lip)->ili_inode; |
a14a5ab5 | 475 | |
4aaf15d1 | 476 | trace_xfs_inode_unpin(ip, _RET_IP_); |
a14a5ab5 CH |
477 | ASSERT(atomic_read(&ip->i_pincount) > 0); |
478 | if (atomic_dec_and_test(&ip->i_pincount)) | |
f392e631 | 479 | wake_up_bit(&ip->i_flags, __XFS_IPINNED_BIT); |
1da177e4 LT |
480 | } |
481 | ||
1da177e4 | 482 | STATIC uint |
43ff2122 CH |
483 | xfs_inode_item_push( |
484 | struct xfs_log_item *lip, | |
485 | struct list_head *buffer_list) | |
1da177e4 | 486 | { |
7bfa31d8 CH |
487 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
488 | struct xfs_inode *ip = iip->ili_inode; | |
43ff2122 CH |
489 | struct xfs_buf *bp = NULL; |
490 | uint rval = XFS_ITEM_SUCCESS; | |
491 | int error; | |
1da177e4 | 492 | |
7bfa31d8 | 493 | if (xfs_ipincount(ip) > 0) |
1da177e4 | 494 | return XFS_ITEM_PINNED; |
1da177e4 | 495 | |
7bfa31d8 | 496 | if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) |
1da177e4 | 497 | return XFS_ITEM_LOCKED; |
1da177e4 | 498 | |
4c46819a CH |
499 | /* |
500 | * Re-check the pincount now that we stabilized the value by | |
501 | * taking the ilock. | |
502 | */ | |
503 | if (xfs_ipincount(ip) > 0) { | |
43ff2122 CH |
504 | rval = XFS_ITEM_PINNED; |
505 | goto out_unlock; | |
4c46819a CH |
506 | } |
507 | ||
43ff2122 CH |
508 | /* |
509 | * Someone else is already flushing the inode. Nothing we can do | |
510 | * here but wait for the flush to finish and remove the item from | |
511 | * the AIL. | |
512 | */ | |
1da177e4 | 513 | if (!xfs_iflock_nowait(ip)) { |
43ff2122 CH |
514 | rval = XFS_ITEM_FLUSHING; |
515 | goto out_unlock; | |
1da177e4 LT |
516 | } |
517 | ||
43ff2122 CH |
518 | /* |
519 | * Stale inode items should force out the iclog. | |
520 | */ | |
1da177e4 LT |
521 | if (ip->i_flags & XFS_ISTALE) { |
522 | xfs_ifunlock(ip); | |
5b03ff1b | 523 | xfs_iunlock(ip, XFS_ILOCK_SHARED); |
1da177e4 LT |
524 | return XFS_ITEM_PINNED; |
525 | } | |
526 | ||
43ff2122 CH |
527 | ASSERT(iip->ili_fields != 0 || XFS_FORCED_SHUTDOWN(ip->i_mount)); |
528 | ASSERT(iip->ili_logged == 0 || XFS_FORCED_SHUTDOWN(ip->i_mount)); | |
529 | ||
530 | spin_unlock(&lip->li_ailp->xa_lock); | |
531 | ||
532 | error = xfs_iflush(ip, &bp); | |
533 | if (!error) { | |
534 | if (!xfs_buf_delwri_queue(bp, buffer_list)) | |
535 | rval = XFS_ITEM_FLUSHING; | |
536 | xfs_buf_relse(bp); | |
1da177e4 | 537 | } |
43ff2122 CH |
538 | |
539 | spin_lock(&lip->li_ailp->xa_lock); | |
540 | out_unlock: | |
541 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
542 | return rval; | |
1da177e4 LT |
543 | } |
544 | ||
545 | /* | |
546 | * Unlock the inode associated with the inode log item. | |
547 | * Clear the fields of the inode and inode log item that | |
548 | * are specific to the current transaction. If the | |
549 | * hold flags is set, do not unlock the inode. | |
550 | */ | |
551 | STATIC void | |
552 | xfs_inode_item_unlock( | |
7bfa31d8 | 553 | struct xfs_log_item *lip) |
1da177e4 | 554 | { |
7bfa31d8 CH |
555 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
556 | struct xfs_inode *ip = iip->ili_inode; | |
898621d5 | 557 | unsigned short lock_flags; |
1da177e4 | 558 | |
f3ca8738 CH |
559 | ASSERT(ip->i_itemp != NULL); |
560 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
1da177e4 LT |
561 | |
562 | /* | |
563 | * If the inode needed a separate buffer with which to log | |
564 | * its extents, then free it now. | |
565 | */ | |
566 | if (iip->ili_extents_buf != NULL) { | |
567 | ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS); | |
568 | ASSERT(ip->i_d.di_nextents > 0); | |
f5d8d5c4 | 569 | ASSERT(iip->ili_fields & XFS_ILOG_DEXT); |
1da177e4 | 570 | ASSERT(ip->i_df.if_bytes > 0); |
f0e2d93c | 571 | kmem_free(iip->ili_extents_buf); |
1da177e4 LT |
572 | iip->ili_extents_buf = NULL; |
573 | } | |
574 | if (iip->ili_aextents_buf != NULL) { | |
575 | ASSERT(ip->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS); | |
576 | ASSERT(ip->i_d.di_anextents > 0); | |
f5d8d5c4 | 577 | ASSERT(iip->ili_fields & XFS_ILOG_AEXT); |
1da177e4 | 578 | ASSERT(ip->i_afp->if_bytes > 0); |
f0e2d93c | 579 | kmem_free(iip->ili_aextents_buf); |
1da177e4 LT |
580 | iip->ili_aextents_buf = NULL; |
581 | } | |
582 | ||
898621d5 CH |
583 | lock_flags = iip->ili_lock_flags; |
584 | iip->ili_lock_flags = 0; | |
ddc3415a | 585 | if (lock_flags) |
f3ca8738 | 586 | xfs_iunlock(ip, lock_flags); |
1da177e4 LT |
587 | } |
588 | ||
589 | /* | |
de25c181 DC |
590 | * This is called to find out where the oldest active copy of the inode log |
591 | * item in the on disk log resides now that the last log write of it completed | |
592 | * at the given lsn. Since we always re-log all dirty data in an inode, the | |
593 | * latest copy in the on disk log is the only one that matters. Therefore, | |
594 | * simply return the given lsn. | |
595 | * | |
596 | * If the inode has been marked stale because the cluster is being freed, we | |
597 | * don't want to (re-)insert this inode into the AIL. There is a race condition | |
598 | * where the cluster buffer may be unpinned before the inode is inserted into | |
599 | * the AIL during transaction committed processing. If the buffer is unpinned | |
600 | * before the inode item has been committed and inserted, then it is possible | |
1316d4da | 601 | * for the buffer to be written and IO completes before the inode is inserted |
de25c181 DC |
602 | * into the AIL. In that case, we'd be inserting a clean, stale inode into the |
603 | * AIL which will never get removed. It will, however, get reclaimed which | |
604 | * triggers an assert in xfs_inode_free() complaining about freein an inode | |
605 | * still in the AIL. | |
606 | * | |
1316d4da DC |
607 | * To avoid this, just unpin the inode directly and return a LSN of -1 so the |
608 | * transaction committed code knows that it does not need to do any further | |
609 | * processing on the item. | |
1da177e4 | 610 | */ |
1da177e4 LT |
611 | STATIC xfs_lsn_t |
612 | xfs_inode_item_committed( | |
7bfa31d8 | 613 | struct xfs_log_item *lip, |
1da177e4 LT |
614 | xfs_lsn_t lsn) |
615 | { | |
de25c181 DC |
616 | struct xfs_inode_log_item *iip = INODE_ITEM(lip); |
617 | struct xfs_inode *ip = iip->ili_inode; | |
618 | ||
1316d4da DC |
619 | if (xfs_iflags_test(ip, XFS_ISTALE)) { |
620 | xfs_inode_item_unpin(lip, 0); | |
621 | return -1; | |
622 | } | |
7bfa31d8 | 623 | return lsn; |
1da177e4 LT |
624 | } |
625 | ||
1da177e4 LT |
626 | /* |
627 | * XXX rcc - this one really has to do something. Probably needs | |
628 | * to stamp in a new field in the incore inode. | |
629 | */ | |
1da177e4 LT |
630 | STATIC void |
631 | xfs_inode_item_committing( | |
7bfa31d8 | 632 | struct xfs_log_item *lip, |
1da177e4 LT |
633 | xfs_lsn_t lsn) |
634 | { | |
7bfa31d8 | 635 | INODE_ITEM(lip)->ili_last_lsn = lsn; |
1da177e4 LT |
636 | } |
637 | ||
638 | /* | |
639 | * This is the ops vector shared by all buf log items. | |
640 | */ | |
272e42b2 | 641 | static const struct xfs_item_ops xfs_inode_item_ops = { |
7bfa31d8 CH |
642 | .iop_size = xfs_inode_item_size, |
643 | .iop_format = xfs_inode_item_format, | |
644 | .iop_pin = xfs_inode_item_pin, | |
645 | .iop_unpin = xfs_inode_item_unpin, | |
7bfa31d8 CH |
646 | .iop_unlock = xfs_inode_item_unlock, |
647 | .iop_committed = xfs_inode_item_committed, | |
648 | .iop_push = xfs_inode_item_push, | |
7bfa31d8 | 649 | .iop_committing = xfs_inode_item_committing |
1da177e4 LT |
650 | }; |
651 | ||
652 | ||
653 | /* | |
654 | * Initialize the inode log item for a newly allocated (in-core) inode. | |
655 | */ | |
656 | void | |
657 | xfs_inode_item_init( | |
7bfa31d8 CH |
658 | struct xfs_inode *ip, |
659 | struct xfs_mount *mp) | |
1da177e4 | 660 | { |
7bfa31d8 | 661 | struct xfs_inode_log_item *iip; |
1da177e4 LT |
662 | |
663 | ASSERT(ip->i_itemp == NULL); | |
664 | iip = ip->i_itemp = kmem_zone_zalloc(xfs_ili_zone, KM_SLEEP); | |
665 | ||
1da177e4 | 666 | iip->ili_inode = ip; |
43f5efc5 DC |
667 | xfs_log_item_init(mp, &iip->ili_item, XFS_LI_INODE, |
668 | &xfs_inode_item_ops); | |
1da177e4 LT |
669 | iip->ili_format.ilf_type = XFS_LI_INODE; |
670 | iip->ili_format.ilf_ino = ip->i_ino; | |
92bfc6e7 CH |
671 | iip->ili_format.ilf_blkno = ip->i_imap.im_blkno; |
672 | iip->ili_format.ilf_len = ip->i_imap.im_len; | |
673 | iip->ili_format.ilf_boffset = ip->i_imap.im_boffset; | |
1da177e4 LT |
674 | } |
675 | ||
676 | /* | |
677 | * Free the inode log item and any memory hanging off of it. | |
678 | */ | |
679 | void | |
680 | xfs_inode_item_destroy( | |
681 | xfs_inode_t *ip) | |
682 | { | |
683 | #ifdef XFS_TRANS_DEBUG | |
684 | if (ip->i_itemp->ili_root_size != 0) { | |
f0e2d93c | 685 | kmem_free(ip->i_itemp->ili_orig_root); |
1da177e4 LT |
686 | } |
687 | #endif | |
688 | kmem_zone_free(xfs_ili_zone, ip->i_itemp); | |
689 | } | |
690 | ||
691 | ||
692 | /* | |
693 | * This is the inode flushing I/O completion routine. It is called | |
694 | * from interrupt level when the buffer containing the inode is | |
695 | * flushed to disk. It is responsible for removing the inode item | |
696 | * from the AIL if it has not been re-logged, and unlocking the inode's | |
697 | * flush lock. | |
30136832 DC |
698 | * |
699 | * To reduce AIL lock traffic as much as possible, we scan the buffer log item | |
700 | * list for other inodes that will run this function. We remove them from the | |
701 | * buffer list so we can process all the inode IO completions in one AIL lock | |
702 | * traversal. | |
1da177e4 | 703 | */ |
1da177e4 LT |
704 | void |
705 | xfs_iflush_done( | |
ca30b2a7 CH |
706 | struct xfs_buf *bp, |
707 | struct xfs_log_item *lip) | |
1da177e4 | 708 | { |
30136832 DC |
709 | struct xfs_inode_log_item *iip; |
710 | struct xfs_log_item *blip; | |
711 | struct xfs_log_item *next; | |
712 | struct xfs_log_item *prev; | |
ca30b2a7 | 713 | struct xfs_ail *ailp = lip->li_ailp; |
30136832 DC |
714 | int need_ail = 0; |
715 | ||
716 | /* | |
717 | * Scan the buffer IO completions for other inodes being completed and | |
718 | * attach them to the current inode log item. | |
719 | */ | |
adadbeef | 720 | blip = bp->b_fspriv; |
30136832 DC |
721 | prev = NULL; |
722 | while (blip != NULL) { | |
723 | if (lip->li_cb != xfs_iflush_done) { | |
724 | prev = blip; | |
725 | blip = blip->li_bio_list; | |
726 | continue; | |
727 | } | |
728 | ||
729 | /* remove from list */ | |
730 | next = blip->li_bio_list; | |
731 | if (!prev) { | |
adadbeef | 732 | bp->b_fspriv = next; |
30136832 DC |
733 | } else { |
734 | prev->li_bio_list = next; | |
735 | } | |
736 | ||
737 | /* add to current list */ | |
738 | blip->li_bio_list = lip->li_bio_list; | |
739 | lip->li_bio_list = blip; | |
740 | ||
741 | /* | |
742 | * while we have the item, do the unlocked check for needing | |
743 | * the AIL lock. | |
744 | */ | |
745 | iip = INODE_ITEM(blip); | |
746 | if (iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) | |
747 | need_ail++; | |
748 | ||
749 | blip = next; | |
750 | } | |
751 | ||
752 | /* make sure we capture the state of the initial inode. */ | |
753 | iip = INODE_ITEM(lip); | |
754 | if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) | |
755 | need_ail++; | |
1da177e4 LT |
756 | |
757 | /* | |
758 | * We only want to pull the item from the AIL if it is | |
759 | * actually there and its location in the log has not | |
760 | * changed since we started the flush. Thus, we only bother | |
761 | * if the ili_logged flag is set and the inode's lsn has not | |
762 | * changed. First we check the lsn outside | |
763 | * the lock since it's cheaper, and then we recheck while | |
764 | * holding the lock before removing the inode from the AIL. | |
765 | */ | |
30136832 DC |
766 | if (need_ail) { |
767 | struct xfs_log_item *log_items[need_ail]; | |
768 | int i = 0; | |
783a2f65 | 769 | spin_lock(&ailp->xa_lock); |
30136832 DC |
770 | for (blip = lip; blip; blip = blip->li_bio_list) { |
771 | iip = INODE_ITEM(blip); | |
772 | if (iip->ili_logged && | |
773 | blip->li_lsn == iip->ili_flush_lsn) { | |
774 | log_items[i++] = blip; | |
775 | } | |
776 | ASSERT(i <= need_ail); | |
1da177e4 | 777 | } |
30136832 | 778 | /* xfs_trans_ail_delete_bulk() drops the AIL lock. */ |
04913fdd DC |
779 | xfs_trans_ail_delete_bulk(ailp, log_items, i, |
780 | SHUTDOWN_CORRUPT_INCORE); | |
1da177e4 LT |
781 | } |
782 | ||
1da177e4 LT |
783 | |
784 | /* | |
30136832 DC |
785 | * clean up and unlock the flush lock now we are done. We can clear the |
786 | * ili_last_fields bits now that we know that the data corresponding to | |
787 | * them is safely on disk. | |
1da177e4 | 788 | */ |
30136832 DC |
789 | for (blip = lip; blip; blip = next) { |
790 | next = blip->li_bio_list; | |
791 | blip->li_bio_list = NULL; | |
792 | ||
793 | iip = INODE_ITEM(blip); | |
794 | iip->ili_logged = 0; | |
795 | iip->ili_last_fields = 0; | |
796 | xfs_ifunlock(iip->ili_inode); | |
797 | } | |
1da177e4 LT |
798 | } |
799 | ||
800 | /* | |
04913fdd DC |
801 | * This is the inode flushing abort routine. It is called from xfs_iflush when |
802 | * the filesystem is shutting down to clean up the inode state. It is | |
803 | * responsible for removing the inode item from the AIL if it has not been | |
804 | * re-logged, and unlocking the inode's flush lock. | |
1da177e4 LT |
805 | */ |
806 | void | |
807 | xfs_iflush_abort( | |
04913fdd DC |
808 | xfs_inode_t *ip, |
809 | bool stale) | |
1da177e4 | 810 | { |
783a2f65 | 811 | xfs_inode_log_item_t *iip = ip->i_itemp; |
1da177e4 | 812 | |
1da177e4 | 813 | if (iip) { |
783a2f65 | 814 | struct xfs_ail *ailp = iip->ili_item.li_ailp; |
1da177e4 | 815 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 816 | spin_lock(&ailp->xa_lock); |
1da177e4 | 817 | if (iip->ili_item.li_flags & XFS_LI_IN_AIL) { |
783a2f65 | 818 | /* xfs_trans_ail_delete() drops the AIL lock. */ |
04913fdd DC |
819 | xfs_trans_ail_delete(ailp, &iip->ili_item, |
820 | stale ? | |
821 | SHUTDOWN_LOG_IO_ERROR : | |
822 | SHUTDOWN_CORRUPT_INCORE); | |
1da177e4 | 823 | } else |
783a2f65 | 824 | spin_unlock(&ailp->xa_lock); |
1da177e4 LT |
825 | } |
826 | iip->ili_logged = 0; | |
827 | /* | |
828 | * Clear the ili_last_fields bits now that we know that the | |
829 | * data corresponding to them is safely on disk. | |
830 | */ | |
831 | iip->ili_last_fields = 0; | |
832 | /* | |
833 | * Clear the inode logging fields so no more flushes are | |
834 | * attempted. | |
835 | */ | |
f5d8d5c4 | 836 | iip->ili_fields = 0; |
1da177e4 LT |
837 | } |
838 | /* | |
839 | * Release the inode's flush lock since we're done with it. | |
840 | */ | |
841 | xfs_ifunlock(ip); | |
842 | } | |
843 | ||
844 | void | |
845 | xfs_istale_done( | |
ca30b2a7 CH |
846 | struct xfs_buf *bp, |
847 | struct xfs_log_item *lip) | |
1da177e4 | 848 | { |
04913fdd | 849 | xfs_iflush_abort(INODE_ITEM(lip)->ili_inode, true); |
1da177e4 | 850 | } |
6d192a9b TS |
851 | |
852 | /* | |
853 | * convert an xfs_inode_log_format struct from either 32 or 64 bit versions | |
854 | * (which can have different field alignments) to the native version | |
855 | */ | |
856 | int | |
857 | xfs_inode_item_format_convert( | |
858 | xfs_log_iovec_t *buf, | |
859 | xfs_inode_log_format_t *in_f) | |
860 | { | |
861 | if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) { | |
4e0d5f92 | 862 | xfs_inode_log_format_32_t *in_f32 = buf->i_addr; |
6d192a9b | 863 | |
6d192a9b TS |
864 | in_f->ilf_type = in_f32->ilf_type; |
865 | in_f->ilf_size = in_f32->ilf_size; | |
866 | in_f->ilf_fields = in_f32->ilf_fields; | |
867 | in_f->ilf_asize = in_f32->ilf_asize; | |
868 | in_f->ilf_dsize = in_f32->ilf_dsize; | |
869 | in_f->ilf_ino = in_f32->ilf_ino; | |
870 | /* copy biggest field of ilf_u */ | |
871 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
872 | in_f32->ilf_u.ilfu_uuid.__u_bits, | |
873 | sizeof(uuid_t)); | |
874 | in_f->ilf_blkno = in_f32->ilf_blkno; | |
875 | in_f->ilf_len = in_f32->ilf_len; | |
876 | in_f->ilf_boffset = in_f32->ilf_boffset; | |
877 | return 0; | |
878 | } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){ | |
4e0d5f92 | 879 | xfs_inode_log_format_64_t *in_f64 = buf->i_addr; |
6d192a9b | 880 | |
6d192a9b TS |
881 | in_f->ilf_type = in_f64->ilf_type; |
882 | in_f->ilf_size = in_f64->ilf_size; | |
883 | in_f->ilf_fields = in_f64->ilf_fields; | |
884 | in_f->ilf_asize = in_f64->ilf_asize; | |
885 | in_f->ilf_dsize = in_f64->ilf_dsize; | |
886 | in_f->ilf_ino = in_f64->ilf_ino; | |
887 | /* copy biggest field of ilf_u */ | |
888 | memcpy(in_f->ilf_u.ilfu_uuid.__u_bits, | |
889 | in_f64->ilf_u.ilfu_uuid.__u_bits, | |
890 | sizeof(uuid_t)); | |
891 | in_f->ilf_blkno = in_f64->ilf_blkno; | |
892 | in_f->ilf_len = in_f64->ilf_len; | |
893 | in_f->ilf_boffset = in_f64->ilf_boffset; | |
894 | return 0; | |
895 | } | |
896 | return EFSCORRUPTED; | |
897 | } |