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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. |
e9aa730c | 23 | * Copyright (c) 2015 by Delphix. All rights reserved. |
34dc7c2f BB |
24 | */ |
25 | ||
60101509 | 26 | |
34dc7c2f BB |
27 | #include <sys/types.h> |
28 | #include <sys/param.h> | |
29 | #include <sys/systm.h> | |
30 | #include <sys/sysmacros.h> | |
31 | #include <sys/cmn_err.h> | |
32 | #include <sys/kmem.h> | |
33 | #include <sys/thread.h> | |
34 | #include <sys/file.h> | |
35 | #include <sys/vfs.h> | |
36 | #include <sys/zfs_znode.h> | |
37 | #include <sys/zfs_dir.h> | |
38 | #include <sys/zil.h> | |
39 | #include <sys/zil_impl.h> | |
40 | #include <sys/byteorder.h> | |
41 | #include <sys/policy.h> | |
42 | #include <sys/stat.h> | |
43 | #include <sys/mode.h> | |
44 | #include <sys/acl.h> | |
45 | #include <sys/dmu.h> | |
46 | #include <sys/spa.h> | |
47 | #include <sys/zfs_fuid.h> | |
48 | #include <sys/ddi.h> | |
fb5f0bc8 BB |
49 | #include <sys/dsl_dataset.h> |
50 | ||
34dc7c2f | 51 | /* |
fb5f0bc8 BB |
52 | * These zfs_log_* functions must be called within a dmu tx, in one |
53 | * of 2 contexts depending on zilog->z_replay: | |
54 | * | |
55 | * Non replay mode | |
56 | * --------------- | |
57 | * We need to record the transaction so that if it is committed to | |
58 | * the Intent Log then it can be replayed. An intent log transaction | |
59 | * structure (itx_t) is allocated and all the information necessary to | |
60 | * possibly replay the transaction is saved in it. The itx is then assigned | |
61 | * a sequence number and inserted in the in-memory list anchored in the zilog. | |
62 | * | |
63 | * Replay mode | |
64 | * ----------- | |
65 | * We need to mark the intent log record as replayed in the log header. | |
66 | * This is done in the same transaction as the replay so that they | |
67 | * commit atomically. | |
34dc7c2f BB |
68 | */ |
69 | ||
70 | int | |
71 | zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) | |
72 | { | |
5484965a | 73 | int isxvattr = (vap->va_mask & ATTR_XVATTR); |
34dc7c2f BB |
74 | switch (type) { |
75 | case Z_FILE: | |
76 | if (vsecp == NULL && !isxvattr) | |
77 | return (TX_CREATE); | |
78 | if (vsecp && isxvattr) | |
79 | return (TX_CREATE_ACL_ATTR); | |
80 | if (vsecp) | |
81 | return (TX_CREATE_ACL); | |
82 | else | |
83 | return (TX_CREATE_ATTR); | |
84 | /*NOTREACHED*/ | |
85 | case Z_DIR: | |
86 | if (vsecp == NULL && !isxvattr) | |
87 | return (TX_MKDIR); | |
88 | if (vsecp && isxvattr) | |
89 | return (TX_MKDIR_ACL_ATTR); | |
90 | if (vsecp) | |
91 | return (TX_MKDIR_ACL); | |
92 | else | |
93 | return (TX_MKDIR_ATTR); | |
94 | case Z_XATTRDIR: | |
95 | return (TX_MKXATTR); | |
96 | } | |
97 | ASSERT(0); | |
98 | return (TX_MAX_TYPE); | |
99 | } | |
100 | ||
101 | /* | |
102 | * build up the log data necessary for logging xvattr_t | |
103 | * First lr_attr_t is initialized. following the lr_attr_t | |
104 | * is the mapsize and attribute bitmap copied from the xvattr_t. | |
105 | * Following the bitmap and bitmapsize two 64 bit words are reserved | |
106 | * for the create time which may be set. Following the create time | |
107 | * records a single 64 bit integer which has the bits to set on | |
108 | * replay for the xvattr. | |
109 | */ | |
110 | static void | |
111 | zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) | |
112 | { | |
113 | uint32_t *bitmap; | |
114 | uint64_t *attrs; | |
115 | uint64_t *crtime; | |
116 | xoptattr_t *xoap; | |
117 | void *scanstamp; | |
118 | int i; | |
119 | ||
120 | xoap = xva_getxoptattr(xvap); | |
121 | ASSERT(xoap); | |
122 | ||
123 | lrattr->lr_attr_masksize = xvap->xva_mapsize; | |
124 | bitmap = &lrattr->lr_attr_bitmap; | |
125 | for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { | |
126 | *bitmap = xvap->xva_reqattrmap[i]; | |
127 | } | |
128 | ||
129 | /* Now pack the attributes up in a single uint64_t */ | |
130 | attrs = (uint64_t *)bitmap; | |
131 | crtime = attrs + 1; | |
132 | scanstamp = (caddr_t)(crtime + 2); | |
133 | *attrs = 0; | |
134 | if (XVA_ISSET_REQ(xvap, XAT_READONLY)) | |
135 | *attrs |= (xoap->xoa_readonly == 0) ? 0 : | |
136 | XAT0_READONLY; | |
137 | if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) | |
138 | *attrs |= (xoap->xoa_hidden == 0) ? 0 : | |
139 | XAT0_HIDDEN; | |
140 | if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) | |
141 | *attrs |= (xoap->xoa_system == 0) ? 0 : | |
142 | XAT0_SYSTEM; | |
143 | if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) | |
144 | *attrs |= (xoap->xoa_archive == 0) ? 0 : | |
145 | XAT0_ARCHIVE; | |
146 | if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) | |
147 | *attrs |= (xoap->xoa_immutable == 0) ? 0 : | |
148 | XAT0_IMMUTABLE; | |
149 | if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) | |
150 | *attrs |= (xoap->xoa_nounlink == 0) ? 0 : | |
151 | XAT0_NOUNLINK; | |
152 | if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) | |
153 | *attrs |= (xoap->xoa_appendonly == 0) ? 0 : | |
154 | XAT0_APPENDONLY; | |
155 | if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) | |
156 | *attrs |= (xoap->xoa_opaque == 0) ? 0 : | |
157 | XAT0_APPENDONLY; | |
158 | if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) | |
159 | *attrs |= (xoap->xoa_nodump == 0) ? 0 : | |
160 | XAT0_NODUMP; | |
161 | if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) | |
162 | *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : | |
163 | XAT0_AV_QUARANTINED; | |
164 | if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) | |
165 | *attrs |= (xoap->xoa_av_modified == 0) ? 0 : | |
166 | XAT0_AV_MODIFIED; | |
167 | if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) | |
168 | ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); | |
9c5167d1 NF |
169 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) { |
170 | ASSERT(!XVA_ISSET_REQ(xvap, XAT_PROJID)); | |
171 | ||
34dc7c2f | 172 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); |
9c5167d1 NF |
173 | } else if (XVA_ISSET_REQ(xvap, XAT_PROJID)) { |
174 | /* | |
175 | * XAT_PROJID and XAT_AV_SCANSTAMP will never be valid | |
176 | * at the same time, so we can share the same space. | |
177 | */ | |
178 | bcopy(&xoap->xoa_projid, scanstamp, sizeof (uint64_t)); | |
179 | } | |
428870ff BB |
180 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
181 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
182 | XAT0_REPARSE; | |
572e2857 BB |
183 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
184 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
185 | XAT0_OFFLINE; | |
186 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
187 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
188 | XAT0_SPARSE; | |
9c5167d1 NF |
189 | if (XVA_ISSET_REQ(xvap, XAT_PROJINHERIT)) |
190 | *attrs |= (xoap->xoa_projinherit == 0) ? 0 : | |
191 | XAT0_PROJINHERIT; | |
34dc7c2f BB |
192 | } |
193 | ||
194 | static void * | |
195 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
196 | { | |
197 | zfs_fuid_t *zfuid; | |
198 | uint64_t *fuidloc = start; | |
199 | ||
200 | /* First copy in the ACE FUIDs */ | |
201 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
202 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
203 | *fuidloc++ = zfuid->z_logfuid; | |
204 | } | |
205 | return (fuidloc); | |
206 | } | |
207 | ||
208 | ||
209 | static void * | |
210 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
211 | { | |
212 | zfs_fuid_domain_t *zdomain; | |
213 | ||
214 | /* now copy in the domain info, if any */ | |
215 | if (fuidp->z_domain_str_sz != 0) { | |
216 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
217 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
218 | bcopy((void *)zdomain->z_domain, start, | |
219 | strlen(zdomain->z_domain) + 1); | |
220 | start = (caddr_t)start + | |
221 | strlen(zdomain->z_domain) + 1; | |
222 | } | |
223 | } | |
224 | return (start); | |
225 | } | |
226 | ||
98701490 CC |
227 | /* |
228 | * If zp is an xattr node, check whether the xattr owner is unlinked. | |
229 | * We don't want to log anything if the owner is unlinked. | |
230 | */ | |
231 | static int | |
232 | zfs_xattr_owner_unlinked(znode_t *zp) | |
233 | { | |
234 | int unlinked = 0; | |
235 | znode_t *dzp; | |
236 | igrab(ZTOI(zp)); | |
237 | /* | |
238 | * if zp is XATTR node, keep walking up via z_xattr_parent until we | |
239 | * get the owner | |
240 | */ | |
241 | while (zp->z_pflags & ZFS_XATTR) { | |
242 | ASSERT3U(zp->z_xattr_parent, !=, 0); | |
243 | if (zfs_zget(ZTOZSB(zp), zp->z_xattr_parent, &dzp) != 0) { | |
244 | unlinked = 1; | |
245 | break; | |
246 | } | |
247 | iput(ZTOI(zp)); | |
248 | zp = dzp; | |
249 | unlinked = zp->z_unlinked; | |
250 | } | |
251 | iput(ZTOI(zp)); | |
252 | return (unlinked); | |
253 | } | |
254 | ||
34dc7c2f | 255 | /* |
d3cc8b15 WA |
256 | * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and |
257 | * TK_MKXATTR transactions. | |
34dc7c2f BB |
258 | * |
259 | * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID | |
260 | * domain information appended prior to the name. In this case the | |
261 | * uid/gid in the log record will be a log centric FUID. | |
262 | * | |
263 | * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that | |
264 | * may contain attributes, ACL and optional fuid information. | |
265 | * | |
266 | * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify | |
267 | * and ACL and normal users/groups in the ACEs. | |
268 | * | |
269 | * There may be an optional xvattr attribute information similar | |
270 | * to zfs_log_setattr. | |
271 | * | |
272 | * Also, after the file name "domain" strings may be appended. | |
273 | */ | |
274 | void | |
275 | zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
276 | znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, | |
277 | zfs_fuid_info_t *fuidp, vattr_t *vap) | |
278 | { | |
279 | itx_t *itx; | |
34dc7c2f BB |
280 | lr_create_t *lr; |
281 | lr_acl_create_t *lracl; | |
5484965a | 282 | size_t aclsize = 0; |
34dc7c2f BB |
283 | size_t xvatsize = 0; |
284 | size_t txsize; | |
a117a6d6 | 285 | xvattr_t *xvap = (xvattr_t *)vap; |
34dc7c2f BB |
286 | void *end; |
287 | size_t lrsize; | |
34dc7c2f BB |
288 | size_t namesize = strlen(name) + 1; |
289 | size_t fuidsz = 0; | |
290 | ||
98701490 | 291 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
292 | return; |
293 | ||
294 | /* | |
295 | * If we have FUIDs present then add in space for | |
296 | * domains and ACE fuid's if any. | |
297 | */ | |
298 | if (fuidp) { | |
299 | fuidsz += fuidp->z_domain_str_sz; | |
300 | fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); | |
301 | } | |
302 | ||
5484965a | 303 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
304 | xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); |
305 | ||
306 | if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || | |
307 | (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || | |
308 | (int)txtype == TX_MKXATTR) { | |
309 | txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; | |
310 | lrsize = sizeof (*lr); | |
311 | } else { | |
34dc7c2f BB |
312 | txsize = |
313 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
314 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
315 | lrsize = sizeof (lr_acl_create_t); | |
316 | } | |
317 | ||
318 | itx = zil_itx_create(txtype, txsize); | |
319 | ||
320 | lr = (lr_create_t *)&itx->itx_lr; | |
321 | lr->lr_doid = dzp->z_id; | |
322 | lr->lr_foid = zp->z_id; | |
50c957f7 NB |
323 | /* Store dnode slot count in 8 bits above object id. */ |
324 | LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT); | |
428870ff | 325 | lr->lr_mode = zp->z_mode; |
2c6abf15 NB |
326 | if (!IS_EPHEMERAL(KUID_TO_SUID(ZTOI(zp)->i_uid))) { |
327 | lr->lr_uid = (uint64_t)KUID_TO_SUID(ZTOI(zp)->i_uid); | |
34dc7c2f BB |
328 | } else { |
329 | lr->lr_uid = fuidp->z_fuid_owner; | |
330 | } | |
2c6abf15 NB |
331 | if (!IS_EPHEMERAL(KGID_TO_SGID(ZTOI(zp)->i_gid))) { |
332 | lr->lr_gid = (uint64_t)KGID_TO_SGID(ZTOI(zp)->i_gid); | |
34dc7c2f BB |
333 | } else { |
334 | lr->lr_gid = fuidp->z_fuid_group; | |
335 | } | |
633e8030 | 336 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 337 | sizeof (uint64_t)); |
633e8030 | 338 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff BB |
339 | lr->lr_crtime, sizeof (uint64_t) * 2); |
340 | ||
633e8030 | 341 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(ZTOZSB(zp)), &lr->lr_rdev, |
428870ff BB |
342 | sizeof (lr->lr_rdev)) != 0) |
343 | lr->lr_rdev = 0; | |
34dc7c2f BB |
344 | |
345 | /* | |
346 | * Fill in xvattr info if any | |
347 | */ | |
5484965a | 348 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
349 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); |
350 | end = (caddr_t)lr + lrsize + xvatsize; | |
351 | } else { | |
352 | end = (caddr_t)lr + lrsize; | |
353 | } | |
354 | ||
355 | /* Now fill in any ACL info */ | |
356 | ||
357 | if (vsecp) { | |
358 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
359 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
360 | lracl->lr_acl_bytes = aclsize; | |
361 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
362 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
363 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
364 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
365 | else | |
366 | lracl->lr_acl_flags = 0; | |
367 | ||
368 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
369 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
370 | } | |
371 | ||
372 | /* drop in FUID info */ | |
373 | if (fuidp) { | |
374 | end = zfs_log_fuid_ids(fuidp, end); | |
375 | end = zfs_log_fuid_domains(fuidp, end); | |
376 | } | |
377 | /* | |
378 | * Now place file name in log record | |
379 | */ | |
380 | bcopy(name, end, namesize); | |
381 | ||
572e2857 | 382 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
383 | } |
384 | ||
385 | /* | |
d3cc8b15 | 386 | * Handles both TX_REMOVE and TX_RMDIR transactions. |
34dc7c2f BB |
387 | */ |
388 | void | |
389 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
e9aa730c | 390 | znode_t *dzp, char *name, uint64_t foid) |
34dc7c2f BB |
391 | { |
392 | itx_t *itx; | |
34dc7c2f BB |
393 | lr_remove_t *lr; |
394 | size_t namesize = strlen(name) + 1; | |
395 | ||
98701490 | 396 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
397 | return; |
398 | ||
399 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
400 | lr = (lr_remove_t *)&itx->itx_lr; | |
401 | lr->lr_doid = dzp->z_id; | |
402 | bcopy(name, (char *)(lr + 1), namesize); | |
403 | ||
572e2857 BB |
404 | itx->itx_oid = foid; |
405 | ||
406 | zil_itx_assign(zilog, itx, tx); | |
34dc7c2f BB |
407 | } |
408 | ||
409 | /* | |
d3cc8b15 | 410 | * Handles TX_LINK transactions. |
34dc7c2f BB |
411 | */ |
412 | void | |
413 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
e9aa730c | 414 | znode_t *dzp, znode_t *zp, char *name) |
34dc7c2f BB |
415 | { |
416 | itx_t *itx; | |
34dc7c2f BB |
417 | lr_link_t *lr; |
418 | size_t namesize = strlen(name) + 1; | |
419 | ||
428870ff | 420 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
421 | return; |
422 | ||
423 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
424 | lr = (lr_link_t *)&itx->itx_lr; | |
425 | lr->lr_doid = dzp->z_id; | |
426 | lr->lr_link_obj = zp->z_id; | |
427 | bcopy(name, (char *)(lr + 1), namesize); | |
428 | ||
572e2857 | 429 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
430 | } |
431 | ||
432 | /* | |
d3cc8b15 | 433 | * Handles TX_SYMLINK transactions. |
34dc7c2f BB |
434 | */ |
435 | void | |
436 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
437 | znode_t *dzp, znode_t *zp, char *name, char *link) | |
438 | { | |
439 | itx_t *itx; | |
34dc7c2f BB |
440 | lr_create_t *lr; |
441 | size_t namesize = strlen(name) + 1; | |
442 | size_t linksize = strlen(link) + 1; | |
443 | ||
428870ff | 444 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
445 | return; |
446 | ||
447 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
448 | lr = (lr_create_t *)&itx->itx_lr; | |
449 | lr->lr_doid = dzp->z_id; | |
450 | lr->lr_foid = zp->z_id; | |
2c6abf15 NB |
451 | lr->lr_uid = KUID_TO_SUID(ZTOI(zp)->i_uid); |
452 | lr->lr_gid = KGID_TO_SGID(ZTOI(zp)->i_gid); | |
428870ff | 453 | lr->lr_mode = zp->z_mode; |
3558fd73 | 454 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 455 | sizeof (uint64_t)); |
3558fd73 | 456 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff | 457 | lr->lr_crtime, sizeof (uint64_t) * 2); |
34dc7c2f BB |
458 | bcopy(name, (char *)(lr + 1), namesize); |
459 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
460 | ||
572e2857 | 461 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
462 | } |
463 | ||
464 | /* | |
d3cc8b15 | 465 | * Handles TX_RENAME transactions. |
34dc7c2f BB |
466 | */ |
467 | void | |
468 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
e9aa730c | 469 | znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) |
34dc7c2f BB |
470 | { |
471 | itx_t *itx; | |
34dc7c2f BB |
472 | lr_rename_t *lr; |
473 | size_t snamesize = strlen(sname) + 1; | |
474 | size_t dnamesize = strlen(dname) + 1; | |
475 | ||
428870ff | 476 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
477 | return; |
478 | ||
479 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
480 | lr = (lr_rename_t *)&itx->itx_lr; | |
481 | lr->lr_sdoid = sdzp->z_id; | |
482 | lr->lr_tdoid = tdzp->z_id; | |
483 | bcopy(sname, (char *)(lr + 1), snamesize); | |
484 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 485 | itx->itx_oid = szp->z_id; |
34dc7c2f | 486 | |
572e2857 | 487 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
488 | } |
489 | ||
490 | /* | |
119a394a ED |
491 | * zfs_log_write() handles TX_WRITE transactions. The specified callback is |
492 | * called as soon as the write is on stable storage (be it via a DMU sync or a | |
493 | * ZIL commit). | |
34dc7c2f | 494 | */ |
15fd2749 | 495 | long zfs_immediate_write_sz = 32768; |
34dc7c2f | 496 | |
34dc7c2f BB |
497 | void |
498 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
e9aa730c GM |
499 | znode_t *zp, offset_t off, ssize_t resid, int ioflag, |
500 | zil_callback_t callback, void *callback_data) | |
34dc7c2f | 501 | { |
1b7c1e5c | 502 | uint32_t blocksize = zp->z_blksz; |
34dc7c2f | 503 | itx_wr_state_t write_state; |
d5446cfc | 504 | uintptr_t fsync_cnt; |
34dc7c2f | 505 | |
98701490 CC |
506 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
507 | zfs_xattr_owner_unlinked(zp)) { | |
119a394a ED |
508 | if (callback != NULL) |
509 | callback(callback_data); | |
34dc7c2f | 510 | return; |
119a394a | 511 | } |
34dc7c2f | 512 | |
1b7c1e5c GDN |
513 | if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
514 | write_state = WR_INDIRECT; | |
515 | else if (!spa_has_slogs(zilog->zl_spa) && | |
516 | resid >= zfs_immediate_write_sz) | |
34dc7c2f BB |
517 | write_state = WR_INDIRECT; |
518 | else if (ioflag & (FSYNC | FDSYNC)) | |
519 | write_state = WR_COPIED; | |
520 | else | |
521 | write_state = WR_NEED_COPY; | |
522 | ||
d5446cfc BB |
523 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { |
524 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
525 | } | |
526 | ||
34dc7c2f BB |
527 | while (resid) { |
528 | itx_t *itx; | |
529 | lr_write_t *lr; | |
1b7c1e5c GDN |
530 | itx_wr_state_t wr_state = write_state; |
531 | ssize_t len = resid; | |
34dc7c2f | 532 | |
1b7c1e5c GDN |
533 | if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA) |
534 | wr_state = WR_NEED_COPY; | |
535 | else if (wr_state == WR_INDIRECT) | |
536 | len = MIN(blocksize - P2PHASE(off, blocksize), resid); | |
34dc7c2f BB |
537 | |
538 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
1b7c1e5c | 539 | (wr_state == WR_COPIED ? len : 0)); |
34dc7c2f | 540 | lr = (lr_write_t *)&itx->itx_lr; |
1b7c1e5c | 541 | if (wr_state == WR_COPIED && dmu_read(ZTOZSB(zp)->z_os, |
9babb374 | 542 | zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { |
428870ff | 543 | zil_itx_destroy(itx); |
34dc7c2f BB |
544 | itx = zil_itx_create(txtype, sizeof (*lr)); |
545 | lr = (lr_write_t *)&itx->itx_lr; | |
1b7c1e5c | 546 | wr_state = WR_NEED_COPY; |
34dc7c2f BB |
547 | } |
548 | ||
1b7c1e5c | 549 | itx->itx_wr_state = wr_state; |
34dc7c2f BB |
550 | lr->lr_foid = zp->z_id; |
551 | lr->lr_offset = off; | |
552 | lr->lr_length = len; | |
553 | lr->lr_blkoff = 0; | |
554 | BP_ZERO(&lr->lr_blkptr); | |
555 | ||
3558fd73 | 556 | itx->itx_private = ZTOZSB(zp); |
34dc7c2f | 557 | |
d5446cfc BB |
558 | if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && |
559 | (fsync_cnt == 0)) | |
34dc7c2f BB |
560 | itx->itx_sync = B_FALSE; |
561 | ||
119a394a ED |
562 | itx->itx_callback = callback; |
563 | itx->itx_callback_data = callback_data; | |
572e2857 | 564 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
565 | |
566 | off += len; | |
567 | resid -= len; | |
568 | } | |
569 | } | |
570 | ||
571 | /* | |
d3cc8b15 | 572 | * Handles TX_TRUNCATE transactions. |
34dc7c2f BB |
573 | */ |
574 | void | |
575 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
e9aa730c | 576 | znode_t *zp, uint64_t off, uint64_t len) |
34dc7c2f BB |
577 | { |
578 | itx_t *itx; | |
34dc7c2f BB |
579 | lr_truncate_t *lr; |
580 | ||
98701490 CC |
581 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
582 | zfs_xattr_owner_unlinked(zp)) | |
34dc7c2f BB |
583 | return; |
584 | ||
585 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
586 | lr = (lr_truncate_t *)&itx->itx_lr; | |
587 | lr->lr_foid = zp->z_id; | |
588 | lr->lr_offset = off; | |
589 | lr->lr_length = len; | |
590 | ||
591 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 592 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
593 | } |
594 | ||
595 | /* | |
d3cc8b15 | 596 | * Handles TX_SETATTR transactions. |
34dc7c2f BB |
597 | */ |
598 | void | |
5484965a BB |
599 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, |
600 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
34dc7c2f BB |
601 | { |
602 | itx_t *itx; | |
34dc7c2f BB |
603 | lr_setattr_t *lr; |
604 | xvattr_t *xvap = (xvattr_t *)vap; | |
605 | size_t recsize = sizeof (lr_setattr_t); | |
606 | void *start; | |
607 | ||
428870ff | 608 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
609 | return; |
610 | ||
611 | /* | |
612 | * If XVATTR set, then log record size needs to allow | |
613 | * for lr_attr_t + xvattr mask, mapsize and create time | |
614 | * plus actual attribute values | |
615 | */ | |
5484965a | 616 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
617 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); |
618 | ||
619 | if (fuidp) | |
620 | recsize += fuidp->z_domain_str_sz; | |
621 | ||
622 | itx = zil_itx_create(txtype, recsize); | |
623 | lr = (lr_setattr_t *)&itx->itx_lr; | |
624 | lr->lr_foid = zp->z_id; | |
625 | lr->lr_mask = (uint64_t)mask_applied; | |
5484965a BB |
626 | lr->lr_mode = (uint64_t)vap->va_mode; |
627 | if ((mask_applied & ATTR_UID) && IS_EPHEMERAL(vap->va_uid)) | |
34dc7c2f BB |
628 | lr->lr_uid = fuidp->z_fuid_owner; |
629 | else | |
5484965a | 630 | lr->lr_uid = (uint64_t)vap->va_uid; |
34dc7c2f | 631 | |
5484965a | 632 | if ((mask_applied & ATTR_GID) && IS_EPHEMERAL(vap->va_gid)) |
34dc7c2f BB |
633 | lr->lr_gid = fuidp->z_fuid_group; |
634 | else | |
5484965a | 635 | lr->lr_gid = (uint64_t)vap->va_gid; |
34dc7c2f | 636 | |
5484965a BB |
637 | lr->lr_size = (uint64_t)vap->va_size; |
638 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
639 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
34dc7c2f | 640 | start = (lr_setattr_t *)(lr + 1); |
5484965a | 641 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
642 | zfs_log_xvattr((lr_attr_t *)start, xvap); |
643 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
644 | } | |
645 | ||
646 | /* | |
647 | * Now stick on domain information if any on end | |
648 | */ | |
649 | ||
650 | if (fuidp) | |
651 | (void) zfs_log_fuid_domains(fuidp, start); | |
652 | ||
653 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 654 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
655 | } |
656 | ||
657 | /* | |
d3cc8b15 | 658 | * Handles TX_ACL transactions. |
34dc7c2f BB |
659 | */ |
660 | void | |
661 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
662 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
663 | { | |
664 | itx_t *itx; | |
34dc7c2f BB |
665 | lr_acl_v0_t *lrv0; |
666 | lr_acl_t *lr; | |
667 | int txtype; | |
668 | int lrsize; | |
669 | size_t txsize; | |
670 | size_t aclbytes = vsecp->vsa_aclentsz; | |
671 | ||
428870ff | 672 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
673 | return; |
674 | ||
3558fd73 | 675 | txtype = (ZTOZSB(zp)->z_version < ZPL_VERSION_FUID) ? |
34dc7c2f BB |
676 | TX_ACL_V0 : TX_ACL; |
677 | ||
678 | if (txtype == TX_ACL) | |
679 | lrsize = sizeof (*lr); | |
680 | else | |
681 | lrsize = sizeof (*lrv0); | |
682 | ||
34dc7c2f BB |
683 | txsize = lrsize + |
684 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
685 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 686 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
687 | |
688 | itx = zil_itx_create(txtype, txsize); | |
689 | ||
690 | lr = (lr_acl_t *)&itx->itx_lr; | |
691 | lr->lr_foid = zp->z_id; | |
692 | if (txtype == TX_ACL) { | |
693 | lr->lr_acl_bytes = aclbytes; | |
694 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
695 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
696 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
697 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
698 | else | |
699 | lr->lr_acl_flags = 0; | |
700 | } | |
701 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
702 | ||
703 | if (txtype == TX_ACL_V0) { | |
704 | lrv0 = (lr_acl_v0_t *)lr; | |
705 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
706 | } else { | |
707 | void *start = (ace_t *)(lr + 1); | |
708 | ||
709 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
710 | ||
711 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
712 | ||
713 | if (fuidp) { | |
714 | start = zfs_log_fuid_ids(fuidp, start); | |
715 | (void) zfs_log_fuid_domains(fuidp, start); | |
716 | } | |
717 | } | |
718 | ||
719 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 720 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 721 | } |
15fd2749 CP |
722 | |
723 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
724 | module_param(zfs_immediate_write_sz, long, 0644); | |
725 | MODULE_PARM_DESC(zfs_immediate_write_sz, "Largest data block to write to zil"); | |
726 | #endif |