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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
572e2857 | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
34dc7c2f BB |
23 | */ |
24 | ||
34dc7c2f BB |
25 | #include <sys/types.h> |
26 | #include <sys/param.h> | |
27 | #include <sys/systm.h> | |
28 | #include <sys/sysmacros.h> | |
29 | #include <sys/cmn_err.h> | |
30 | #include <sys/kmem.h> | |
31 | #include <sys/thread.h> | |
32 | #include <sys/file.h> | |
33 | #include <sys/vfs.h> | |
34 | #include <sys/zfs_znode.h> | |
35 | #include <sys/zfs_dir.h> | |
36 | #include <sys/zil.h> | |
37 | #include <sys/zil_impl.h> | |
38 | #include <sys/byteorder.h> | |
39 | #include <sys/policy.h> | |
40 | #include <sys/stat.h> | |
41 | #include <sys/mode.h> | |
42 | #include <sys/acl.h> | |
43 | #include <sys/dmu.h> | |
44 | #include <sys/spa.h> | |
45 | #include <sys/zfs_fuid.h> | |
46 | #include <sys/ddi.h> | |
fb5f0bc8 BB |
47 | #include <sys/dsl_dataset.h> |
48 | ||
34dc7c2f | 49 | /* |
fb5f0bc8 BB |
50 | * These zfs_log_* functions must be called within a dmu tx, in one |
51 | * of 2 contexts depending on zilog->z_replay: | |
52 | * | |
53 | * Non replay mode | |
54 | * --------------- | |
55 | * We need to record the transaction so that if it is committed to | |
56 | * the Intent Log then it can be replayed. An intent log transaction | |
57 | * structure (itx_t) is allocated and all the information necessary to | |
58 | * possibly replay the transaction is saved in it. The itx is then assigned | |
59 | * a sequence number and inserted in the in-memory list anchored in the zilog. | |
60 | * | |
61 | * Replay mode | |
62 | * ----------- | |
63 | * We need to mark the intent log record as replayed in the log header. | |
64 | * This is done in the same transaction as the replay so that they | |
65 | * commit atomically. | |
34dc7c2f BB |
66 | */ |
67 | ||
68 | int | |
69 | zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) | |
70 | { | |
71 | int isxvattr = (vap->va_mask & AT_XVATTR); | |
72 | switch (type) { | |
73 | case Z_FILE: | |
74 | if (vsecp == NULL && !isxvattr) | |
75 | return (TX_CREATE); | |
76 | if (vsecp && isxvattr) | |
77 | return (TX_CREATE_ACL_ATTR); | |
78 | if (vsecp) | |
79 | return (TX_CREATE_ACL); | |
80 | else | |
81 | return (TX_CREATE_ATTR); | |
82 | /*NOTREACHED*/ | |
83 | case Z_DIR: | |
84 | if (vsecp == NULL && !isxvattr) | |
85 | return (TX_MKDIR); | |
86 | if (vsecp && isxvattr) | |
87 | return (TX_MKDIR_ACL_ATTR); | |
88 | if (vsecp) | |
89 | return (TX_MKDIR_ACL); | |
90 | else | |
91 | return (TX_MKDIR_ATTR); | |
92 | case Z_XATTRDIR: | |
93 | return (TX_MKXATTR); | |
94 | } | |
95 | ASSERT(0); | |
96 | return (TX_MAX_TYPE); | |
97 | } | |
98 | ||
99 | /* | |
100 | * build up the log data necessary for logging xvattr_t | |
101 | * First lr_attr_t is initialized. following the lr_attr_t | |
102 | * is the mapsize and attribute bitmap copied from the xvattr_t. | |
103 | * Following the bitmap and bitmapsize two 64 bit words are reserved | |
104 | * for the create time which may be set. Following the create time | |
105 | * records a single 64 bit integer which has the bits to set on | |
106 | * replay for the xvattr. | |
107 | */ | |
108 | static void | |
109 | zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) | |
110 | { | |
111 | uint32_t *bitmap; | |
112 | uint64_t *attrs; | |
113 | uint64_t *crtime; | |
114 | xoptattr_t *xoap; | |
115 | void *scanstamp; | |
116 | int i; | |
117 | ||
118 | xoap = xva_getxoptattr(xvap); | |
119 | ASSERT(xoap); | |
120 | ||
121 | lrattr->lr_attr_masksize = xvap->xva_mapsize; | |
122 | bitmap = &lrattr->lr_attr_bitmap; | |
123 | for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { | |
124 | *bitmap = xvap->xva_reqattrmap[i]; | |
125 | } | |
126 | ||
127 | /* Now pack the attributes up in a single uint64_t */ | |
128 | attrs = (uint64_t *)bitmap; | |
129 | crtime = attrs + 1; | |
130 | scanstamp = (caddr_t)(crtime + 2); | |
131 | *attrs = 0; | |
132 | if (XVA_ISSET_REQ(xvap, XAT_READONLY)) | |
133 | *attrs |= (xoap->xoa_readonly == 0) ? 0 : | |
134 | XAT0_READONLY; | |
135 | if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) | |
136 | *attrs |= (xoap->xoa_hidden == 0) ? 0 : | |
137 | XAT0_HIDDEN; | |
138 | if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) | |
139 | *attrs |= (xoap->xoa_system == 0) ? 0 : | |
140 | XAT0_SYSTEM; | |
141 | if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) | |
142 | *attrs |= (xoap->xoa_archive == 0) ? 0 : | |
143 | XAT0_ARCHIVE; | |
144 | if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) | |
145 | *attrs |= (xoap->xoa_immutable == 0) ? 0 : | |
146 | XAT0_IMMUTABLE; | |
147 | if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) | |
148 | *attrs |= (xoap->xoa_nounlink == 0) ? 0 : | |
149 | XAT0_NOUNLINK; | |
150 | if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) | |
151 | *attrs |= (xoap->xoa_appendonly == 0) ? 0 : | |
152 | XAT0_APPENDONLY; | |
153 | if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) | |
154 | *attrs |= (xoap->xoa_opaque == 0) ? 0 : | |
155 | XAT0_APPENDONLY; | |
156 | if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) | |
157 | *attrs |= (xoap->xoa_nodump == 0) ? 0 : | |
158 | XAT0_NODUMP; | |
159 | if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) | |
160 | *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : | |
161 | XAT0_AV_QUARANTINED; | |
162 | if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) | |
163 | *attrs |= (xoap->xoa_av_modified == 0) ? 0 : | |
164 | XAT0_AV_MODIFIED; | |
165 | if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) | |
166 | ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); | |
167 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) | |
168 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); | |
428870ff BB |
169 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
170 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
171 | XAT0_REPARSE; | |
572e2857 BB |
172 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
173 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
174 | XAT0_OFFLINE; | |
175 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
176 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
177 | XAT0_SPARSE; | |
34dc7c2f BB |
178 | } |
179 | ||
180 | static void * | |
181 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
182 | { | |
183 | zfs_fuid_t *zfuid; | |
184 | uint64_t *fuidloc = start; | |
185 | ||
186 | /* First copy in the ACE FUIDs */ | |
187 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
188 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
189 | *fuidloc++ = zfuid->z_logfuid; | |
190 | } | |
191 | return (fuidloc); | |
192 | } | |
193 | ||
194 | ||
195 | static void * | |
196 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
197 | { | |
198 | zfs_fuid_domain_t *zdomain; | |
199 | ||
200 | /* now copy in the domain info, if any */ | |
201 | if (fuidp->z_domain_str_sz != 0) { | |
202 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
203 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
204 | bcopy((void *)zdomain->z_domain, start, | |
205 | strlen(zdomain->z_domain) + 1); | |
206 | start = (caddr_t)start + | |
207 | strlen(zdomain->z_domain) + 1; | |
208 | } | |
209 | } | |
210 | return (start); | |
211 | } | |
212 | ||
213 | /* | |
214 | * zfs_log_create() is used to handle TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, | |
215 | * TX_MKDIR_ATTR and TX_MKXATTR | |
216 | * transactions. | |
217 | * | |
218 | * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID | |
219 | * domain information appended prior to the name. In this case the | |
220 | * uid/gid in the log record will be a log centric FUID. | |
221 | * | |
222 | * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that | |
223 | * may contain attributes, ACL and optional fuid information. | |
224 | * | |
225 | * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify | |
226 | * and ACL and normal users/groups in the ACEs. | |
227 | * | |
228 | * There may be an optional xvattr attribute information similar | |
229 | * to zfs_log_setattr. | |
230 | * | |
231 | * Also, after the file name "domain" strings may be appended. | |
232 | */ | |
233 | void | |
234 | zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
235 | znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, | |
236 | zfs_fuid_info_t *fuidp, vattr_t *vap) | |
237 | { | |
238 | itx_t *itx; | |
34dc7c2f BB |
239 | lr_create_t *lr; |
240 | lr_acl_create_t *lracl; | |
241 | size_t aclsize; | |
242 | size_t xvatsize = 0; | |
243 | size_t txsize; | |
244 | xvattr_t *xvap = (xvattr_t *)vap; | |
245 | void *end; | |
246 | size_t lrsize; | |
34dc7c2f BB |
247 | size_t namesize = strlen(name) + 1; |
248 | size_t fuidsz = 0; | |
249 | ||
428870ff | 250 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
251 | return; |
252 | ||
253 | /* | |
254 | * If we have FUIDs present then add in space for | |
255 | * domains and ACE fuid's if any. | |
256 | */ | |
257 | if (fuidp) { | |
258 | fuidsz += fuidp->z_domain_str_sz; | |
259 | fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); | |
260 | } | |
261 | ||
262 | if (vap->va_mask & AT_XVATTR) | |
263 | xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
264 | ||
265 | if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || | |
266 | (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || | |
267 | (int)txtype == TX_MKXATTR) { | |
268 | txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; | |
269 | lrsize = sizeof (*lr); | |
270 | } else { | |
271 | aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0; | |
272 | txsize = | |
273 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
274 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
275 | lrsize = sizeof (lr_acl_create_t); | |
276 | } | |
277 | ||
278 | itx = zil_itx_create(txtype, txsize); | |
279 | ||
280 | lr = (lr_create_t *)&itx->itx_lr; | |
281 | lr->lr_doid = dzp->z_id; | |
282 | lr->lr_foid = zp->z_id; | |
428870ff BB |
283 | lr->lr_mode = zp->z_mode; |
284 | if (!IS_EPHEMERAL(zp->z_uid)) { | |
285 | lr->lr_uid = (uint64_t)zp->z_uid; | |
34dc7c2f BB |
286 | } else { |
287 | lr->lr_uid = fuidp->z_fuid_owner; | |
288 | } | |
428870ff BB |
289 | if (!IS_EPHEMERAL(zp->z_gid)) { |
290 | lr->lr_gid = (uint64_t)zp->z_gid; | |
34dc7c2f BB |
291 | } else { |
292 | lr->lr_gid = fuidp->z_fuid_group; | |
293 | } | |
428870ff BB |
294 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, |
295 | sizeof (uint64_t)); | |
296 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), | |
297 | lr->lr_crtime, sizeof (uint64_t) * 2); | |
298 | ||
299 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(zp->z_zfsvfs), &lr->lr_rdev, | |
300 | sizeof (lr->lr_rdev)) != 0) | |
301 | lr->lr_rdev = 0; | |
34dc7c2f BB |
302 | |
303 | /* | |
304 | * Fill in xvattr info if any | |
305 | */ | |
306 | if (vap->va_mask & AT_XVATTR) { | |
307 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); | |
308 | end = (caddr_t)lr + lrsize + xvatsize; | |
309 | } else { | |
310 | end = (caddr_t)lr + lrsize; | |
311 | } | |
312 | ||
313 | /* Now fill in any ACL info */ | |
314 | ||
315 | if (vsecp) { | |
316 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
317 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
318 | lracl->lr_acl_bytes = aclsize; | |
319 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
320 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
321 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
322 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
323 | else | |
324 | lracl->lr_acl_flags = 0; | |
325 | ||
326 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
327 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
328 | } | |
329 | ||
330 | /* drop in FUID info */ | |
331 | if (fuidp) { | |
332 | end = zfs_log_fuid_ids(fuidp, end); | |
333 | end = zfs_log_fuid_domains(fuidp, end); | |
334 | } | |
335 | /* | |
336 | * Now place file name in log record | |
337 | */ | |
338 | bcopy(name, end, namesize); | |
339 | ||
572e2857 | 340 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
341 | } |
342 | ||
343 | /* | |
344 | * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions. | |
345 | */ | |
346 | void | |
347 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
572e2857 | 348 | znode_t *dzp, char *name, uint64_t foid) |
34dc7c2f BB |
349 | { |
350 | itx_t *itx; | |
34dc7c2f BB |
351 | lr_remove_t *lr; |
352 | size_t namesize = strlen(name) + 1; | |
353 | ||
428870ff | 354 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
355 | return; |
356 | ||
357 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
358 | lr = (lr_remove_t *)&itx->itx_lr; | |
359 | lr->lr_doid = dzp->z_id; | |
360 | bcopy(name, (char *)(lr + 1), namesize); | |
361 | ||
572e2857 BB |
362 | itx->itx_oid = foid; |
363 | ||
364 | zil_itx_assign(zilog, itx, tx); | |
34dc7c2f BB |
365 | } |
366 | ||
367 | /* | |
368 | * zfs_log_link() handles TX_LINK transactions. | |
369 | */ | |
370 | void | |
371 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
372 | znode_t *dzp, znode_t *zp, char *name) | |
373 | { | |
374 | itx_t *itx; | |
34dc7c2f BB |
375 | lr_link_t *lr; |
376 | size_t namesize = strlen(name) + 1; | |
377 | ||
428870ff | 378 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
379 | return; |
380 | ||
381 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
382 | lr = (lr_link_t *)&itx->itx_lr; | |
383 | lr->lr_doid = dzp->z_id; | |
384 | lr->lr_link_obj = zp->z_id; | |
385 | bcopy(name, (char *)(lr + 1), namesize); | |
386 | ||
572e2857 | 387 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
388 | } |
389 | ||
390 | /* | |
391 | * zfs_log_symlink() handles TX_SYMLINK transactions. | |
392 | */ | |
393 | void | |
394 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
395 | znode_t *dzp, znode_t *zp, char *name, char *link) | |
396 | { | |
397 | itx_t *itx; | |
34dc7c2f BB |
398 | lr_create_t *lr; |
399 | size_t namesize = strlen(name) + 1; | |
400 | size_t linksize = strlen(link) + 1; | |
401 | ||
428870ff | 402 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
403 | return; |
404 | ||
405 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
406 | lr = (lr_create_t *)&itx->itx_lr; | |
407 | lr->lr_doid = dzp->z_id; | |
408 | lr->lr_foid = zp->z_id; | |
428870ff BB |
409 | lr->lr_uid = zp->z_uid; |
410 | lr->lr_gid = zp->z_gid; | |
411 | lr->lr_mode = zp->z_mode; | |
412 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zp->z_zfsvfs), &lr->lr_gen, | |
413 | sizeof (uint64_t)); | |
414 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(zp->z_zfsvfs), | |
415 | lr->lr_crtime, sizeof (uint64_t) * 2); | |
34dc7c2f BB |
416 | bcopy(name, (char *)(lr + 1), namesize); |
417 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
418 | ||
572e2857 | 419 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
420 | } |
421 | ||
422 | /* | |
423 | * zfs_log_rename() handles TX_RENAME transactions. | |
424 | */ | |
425 | void | |
426 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
427 | znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) | |
428 | { | |
429 | itx_t *itx; | |
34dc7c2f BB |
430 | lr_rename_t *lr; |
431 | size_t snamesize = strlen(sname) + 1; | |
432 | size_t dnamesize = strlen(dname) + 1; | |
433 | ||
428870ff | 434 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
435 | return; |
436 | ||
437 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
438 | lr = (lr_rename_t *)&itx->itx_lr; | |
439 | lr->lr_sdoid = sdzp->z_id; | |
440 | lr->lr_tdoid = tdzp->z_id; | |
441 | bcopy(sname, (char *)(lr + 1), snamesize); | |
442 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 443 | itx->itx_oid = szp->z_id; |
34dc7c2f | 444 | |
572e2857 | 445 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
446 | } |
447 | ||
448 | /* | |
449 | * zfs_log_write() handles TX_WRITE transactions. | |
450 | */ | |
451 | ssize_t zfs_immediate_write_sz = 32768; | |
452 | ||
34dc7c2f BB |
453 | void |
454 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
455 | znode_t *zp, offset_t off, ssize_t resid, int ioflag) | |
456 | { | |
457 | itx_wr_state_t write_state; | |
458 | boolean_t slogging; | |
459 | uintptr_t fsync_cnt; | |
428870ff | 460 | ssize_t immediate_write_sz; |
34dc7c2f | 461 | |
428870ff | 462 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
463 | return; |
464 | ||
428870ff BB |
465 | immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
466 | ? 0 : zfs_immediate_write_sz; | |
fb5f0bc8 | 467 | |
428870ff BB |
468 | slogging = spa_has_slogs(zilog->zl_spa) && |
469 | (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); | |
470 | if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) | |
34dc7c2f BB |
471 | write_state = WR_INDIRECT; |
472 | else if (ioflag & (FSYNC | FDSYNC)) | |
473 | write_state = WR_COPIED; | |
474 | else | |
475 | write_state = WR_NEED_COPY; | |
476 | ||
477 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { | |
478 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
479 | } | |
480 | ||
481 | while (resid) { | |
482 | itx_t *itx; | |
483 | lr_write_t *lr; | |
484 | ssize_t len; | |
485 | ||
486 | /* | |
b128c09f | 487 | * If the write would overflow the largest block then split it. |
34dc7c2f | 488 | */ |
b128c09f | 489 | if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) |
34dc7c2f BB |
490 | len = SPA_MAXBLOCKSIZE >> 1; |
491 | else | |
492 | len = resid; | |
493 | ||
494 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
495 | (write_state == WR_COPIED ? len : 0)); | |
496 | lr = (lr_write_t *)&itx->itx_lr; | |
497 | if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os, | |
9babb374 | 498 | zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { |
428870ff | 499 | zil_itx_destroy(itx); |
34dc7c2f BB |
500 | itx = zil_itx_create(txtype, sizeof (*lr)); |
501 | lr = (lr_write_t *)&itx->itx_lr; | |
502 | write_state = WR_NEED_COPY; | |
503 | } | |
504 | ||
505 | itx->itx_wr_state = write_state; | |
506 | if (write_state == WR_NEED_COPY) | |
507 | itx->itx_sod += len; | |
508 | lr->lr_foid = zp->z_id; | |
509 | lr->lr_offset = off; | |
510 | lr->lr_length = len; | |
511 | lr->lr_blkoff = 0; | |
512 | BP_ZERO(&lr->lr_blkptr); | |
513 | ||
514 | itx->itx_private = zp->z_zfsvfs; | |
515 | ||
572e2857 BB |
516 | if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && |
517 | (fsync_cnt == 0)) | |
34dc7c2f BB |
518 | itx->itx_sync = B_FALSE; |
519 | ||
572e2857 | 520 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
521 | |
522 | off += len; | |
523 | resid -= len; | |
524 | } | |
525 | } | |
526 | ||
527 | /* | |
528 | * zfs_log_truncate() handles TX_TRUNCATE transactions. | |
529 | */ | |
530 | void | |
531 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
532 | znode_t *zp, uint64_t off, uint64_t len) | |
533 | { | |
534 | itx_t *itx; | |
34dc7c2f BB |
535 | lr_truncate_t *lr; |
536 | ||
428870ff | 537 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
538 | return; |
539 | ||
540 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
541 | lr = (lr_truncate_t *)&itx->itx_lr; | |
542 | lr->lr_foid = zp->z_id; | |
543 | lr->lr_offset = off; | |
544 | lr->lr_length = len; | |
545 | ||
546 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 547 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
548 | } |
549 | ||
550 | /* | |
551 | * zfs_log_setattr() handles TX_SETATTR transactions. | |
552 | */ | |
553 | void | |
554 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
555 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
556 | { | |
557 | itx_t *itx; | |
34dc7c2f BB |
558 | lr_setattr_t *lr; |
559 | xvattr_t *xvap = (xvattr_t *)vap; | |
560 | size_t recsize = sizeof (lr_setattr_t); | |
561 | void *start; | |
562 | ||
428870ff | 563 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
564 | return; |
565 | ||
566 | /* | |
567 | * If XVATTR set, then log record size needs to allow | |
568 | * for lr_attr_t + xvattr mask, mapsize and create time | |
569 | * plus actual attribute values | |
570 | */ | |
571 | if (vap->va_mask & AT_XVATTR) | |
572 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
573 | ||
574 | if (fuidp) | |
575 | recsize += fuidp->z_domain_str_sz; | |
576 | ||
577 | itx = zil_itx_create(txtype, recsize); | |
578 | lr = (lr_setattr_t *)&itx->itx_lr; | |
579 | lr->lr_foid = zp->z_id; | |
580 | lr->lr_mask = (uint64_t)mask_applied; | |
581 | lr->lr_mode = (uint64_t)vap->va_mode; | |
582 | if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid)) | |
583 | lr->lr_uid = fuidp->z_fuid_owner; | |
584 | else | |
585 | lr->lr_uid = (uint64_t)vap->va_uid; | |
586 | ||
587 | if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid)) | |
588 | lr->lr_gid = fuidp->z_fuid_group; | |
589 | else | |
590 | lr->lr_gid = (uint64_t)vap->va_gid; | |
591 | ||
592 | lr->lr_size = (uint64_t)vap->va_size; | |
593 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
594 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
595 | start = (lr_setattr_t *)(lr + 1); | |
596 | if (vap->va_mask & AT_XVATTR) { | |
597 | zfs_log_xvattr((lr_attr_t *)start, xvap); | |
598 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
599 | } | |
600 | ||
601 | /* | |
602 | * Now stick on domain information if any on end | |
603 | */ | |
604 | ||
605 | if (fuidp) | |
606 | (void) zfs_log_fuid_domains(fuidp, start); | |
607 | ||
608 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 609 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
610 | } |
611 | ||
612 | /* | |
613 | * zfs_log_acl() handles TX_ACL transactions. | |
614 | */ | |
615 | void | |
616 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
617 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
618 | { | |
619 | itx_t *itx; | |
34dc7c2f BB |
620 | lr_acl_v0_t *lrv0; |
621 | lr_acl_t *lr; | |
622 | int txtype; | |
623 | int lrsize; | |
624 | size_t txsize; | |
625 | size_t aclbytes = vsecp->vsa_aclentsz; | |
626 | ||
428870ff | 627 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
628 | return; |
629 | ||
630 | txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ? | |
34dc7c2f BB |
631 | TX_ACL_V0 : TX_ACL; |
632 | ||
633 | if (txtype == TX_ACL) | |
634 | lrsize = sizeof (*lr); | |
635 | else | |
636 | lrsize = sizeof (*lrv0); | |
637 | ||
34dc7c2f BB |
638 | txsize = lrsize + |
639 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
640 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 641 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
642 | |
643 | itx = zil_itx_create(txtype, txsize); | |
644 | ||
645 | lr = (lr_acl_t *)&itx->itx_lr; | |
646 | lr->lr_foid = zp->z_id; | |
647 | if (txtype == TX_ACL) { | |
648 | lr->lr_acl_bytes = aclbytes; | |
649 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
650 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
651 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
652 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
653 | else | |
654 | lr->lr_acl_flags = 0; | |
655 | } | |
656 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
657 | ||
658 | if (txtype == TX_ACL_V0) { | |
659 | lrv0 = (lr_acl_v0_t *)lr; | |
660 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
661 | } else { | |
662 | void *start = (ace_t *)(lr + 1); | |
663 | ||
664 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
665 | ||
666 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
667 | ||
668 | if (fuidp) { | |
669 | start = zfs_log_fuid_ids(fuidp, start); | |
670 | (void) zfs_log_fuid_domains(fuidp, start); | |
671 | } | |
672 | } | |
673 | ||
674 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 675 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 676 | } |