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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. |
b8738257 | 23 | * Copyright (c) 2015, 2018 by Delphix. All rights reserved. |
34dc7c2f BB |
24 | */ |
25 | ||
60101509 | 26 | |
34dc7c2f BB |
27 | #include <sys/types.h> |
28 | #include <sys/param.h> | |
34dc7c2f BB |
29 | #include <sys/sysmacros.h> |
30 | #include <sys/cmn_err.h> | |
31 | #include <sys/kmem.h> | |
32 | #include <sys/thread.h> | |
33 | #include <sys/file.h> | |
34 | #include <sys/vfs.h> | |
35 | #include <sys/zfs_znode.h> | |
36 | #include <sys/zfs_dir.h> | |
37 | #include <sys/zil.h> | |
38 | #include <sys/zil_impl.h> | |
39 | #include <sys/byteorder.h> | |
40 | #include <sys/policy.h> | |
41 | #include <sys/stat.h> | |
34dc7c2f BB |
42 | #include <sys/acl.h> |
43 | #include <sys/dmu.h> | |
c8bbf7c0 | 44 | #include <sys/dbuf.h> |
34dc7c2f BB |
45 | #include <sys/spa.h> |
46 | #include <sys/zfs_fuid.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 | { | |
5484965a | 71 | int isxvattr = (vap->va_mask & ATTR_XVATTR); |
34dc7c2f BB |
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); | |
34dc7c2f BB |
82 | case Z_DIR: |
83 | if (vsecp == NULL && !isxvattr) | |
84 | return (TX_MKDIR); | |
85 | if (vsecp && isxvattr) | |
86 | return (TX_MKDIR_ACL_ATTR); | |
87 | if (vsecp) | |
88 | return (TX_MKDIR_ACL); | |
89 | else | |
90 | return (TX_MKDIR_ATTR); | |
91 | case Z_XATTRDIR: | |
92 | return (TX_MKXATTR); | |
93 | } | |
94 | ASSERT(0); | |
95 | return (TX_MAX_TYPE); | |
96 | } | |
97 | ||
98 | /* | |
99 | * build up the log data necessary for logging xvattr_t | |
100 | * First lr_attr_t is initialized. following the lr_attr_t | |
101 | * is the mapsize and attribute bitmap copied from the xvattr_t. | |
102 | * Following the bitmap and bitmapsize two 64 bit words are reserved | |
103 | * for the create time which may be set. Following the create time | |
104 | * records a single 64 bit integer which has the bits to set on | |
105 | * replay for the xvattr. | |
106 | */ | |
107 | static void | |
108 | zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) | |
109 | { | |
110 | uint32_t *bitmap; | |
111 | uint64_t *attrs; | |
112 | uint64_t *crtime; | |
113 | xoptattr_t *xoap; | |
114 | void *scanstamp; | |
115 | int i; | |
116 | ||
117 | xoap = xva_getxoptattr(xvap); | |
118 | ASSERT(xoap); | |
119 | ||
120 | lrattr->lr_attr_masksize = xvap->xva_mapsize; | |
121 | bitmap = &lrattr->lr_attr_bitmap; | |
122 | for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { | |
123 | *bitmap = xvap->xva_reqattrmap[i]; | |
124 | } | |
125 | ||
126 | /* Now pack the attributes up in a single uint64_t */ | |
127 | attrs = (uint64_t *)bitmap; | |
03363b2f | 128 | *attrs = 0; |
34dc7c2f | 129 | crtime = attrs + 1; |
03363b2f | 130 | bzero(crtime, 2 * sizeof (uint64_t)); |
34dc7c2f | 131 | scanstamp = (caddr_t)(crtime + 2); |
03363b2f | 132 | bzero(scanstamp, AV_SCANSTAMP_SZ); |
34dc7c2f BB |
133 | if (XVA_ISSET_REQ(xvap, XAT_READONLY)) |
134 | *attrs |= (xoap->xoa_readonly == 0) ? 0 : | |
135 | XAT0_READONLY; | |
136 | if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) | |
137 | *attrs |= (xoap->xoa_hidden == 0) ? 0 : | |
138 | XAT0_HIDDEN; | |
139 | if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) | |
140 | *attrs |= (xoap->xoa_system == 0) ? 0 : | |
141 | XAT0_SYSTEM; | |
142 | if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) | |
143 | *attrs |= (xoap->xoa_archive == 0) ? 0 : | |
144 | XAT0_ARCHIVE; | |
145 | if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) | |
146 | *attrs |= (xoap->xoa_immutable == 0) ? 0 : | |
147 | XAT0_IMMUTABLE; | |
148 | if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) | |
149 | *attrs |= (xoap->xoa_nounlink == 0) ? 0 : | |
150 | XAT0_NOUNLINK; | |
151 | if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) | |
152 | *attrs |= (xoap->xoa_appendonly == 0) ? 0 : | |
153 | XAT0_APPENDONLY; | |
154 | if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) | |
155 | *attrs |= (xoap->xoa_opaque == 0) ? 0 : | |
156 | XAT0_APPENDONLY; | |
157 | if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) | |
158 | *attrs |= (xoap->xoa_nodump == 0) ? 0 : | |
159 | XAT0_NODUMP; | |
160 | if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) | |
161 | *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : | |
162 | XAT0_AV_QUARANTINED; | |
163 | if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) | |
164 | *attrs |= (xoap->xoa_av_modified == 0) ? 0 : | |
165 | XAT0_AV_MODIFIED; | |
166 | if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) | |
167 | ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); | |
9c5167d1 NF |
168 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) { |
169 | ASSERT(!XVA_ISSET_REQ(xvap, XAT_PROJID)); | |
170 | ||
34dc7c2f | 171 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); |
9c5167d1 NF |
172 | } else if (XVA_ISSET_REQ(xvap, XAT_PROJID)) { |
173 | /* | |
174 | * XAT_PROJID and XAT_AV_SCANSTAMP will never be valid | |
175 | * at the same time, so we can share the same space. | |
176 | */ | |
177 | bcopy(&xoap->xoa_projid, scanstamp, sizeof (uint64_t)); | |
178 | } | |
428870ff BB |
179 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
180 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
181 | XAT0_REPARSE; | |
572e2857 BB |
182 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
183 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
184 | XAT0_OFFLINE; | |
185 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
186 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
187 | XAT0_SPARSE; | |
9c5167d1 NF |
188 | if (XVA_ISSET_REQ(xvap, XAT_PROJINHERIT)) |
189 | *attrs |= (xoap->xoa_projinherit == 0) ? 0 : | |
190 | XAT0_PROJINHERIT; | |
34dc7c2f BB |
191 | } |
192 | ||
193 | static void * | |
194 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
195 | { | |
196 | zfs_fuid_t *zfuid; | |
197 | uint64_t *fuidloc = start; | |
198 | ||
199 | /* First copy in the ACE FUIDs */ | |
200 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
201 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
202 | *fuidloc++ = zfuid->z_logfuid; | |
203 | } | |
204 | return (fuidloc); | |
205 | } | |
206 | ||
207 | ||
208 | static void * | |
209 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
210 | { | |
211 | zfs_fuid_domain_t *zdomain; | |
212 | ||
213 | /* now copy in the domain info, if any */ | |
214 | if (fuidp->z_domain_str_sz != 0) { | |
215 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
216 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
217 | bcopy((void *)zdomain->z_domain, start, | |
218 | strlen(zdomain->z_domain) + 1); | |
219 | start = (caddr_t)start + | |
220 | strlen(zdomain->z_domain) + 1; | |
221 | } | |
222 | } | |
223 | return (start); | |
224 | } | |
225 | ||
98701490 CC |
226 | /* |
227 | * If zp is an xattr node, check whether the xattr owner is unlinked. | |
228 | * We don't want to log anything if the owner is unlinked. | |
229 | */ | |
230 | static int | |
231 | zfs_xattr_owner_unlinked(znode_t *zp) | |
232 | { | |
233 | int unlinked = 0; | |
234 | znode_t *dzp; | |
cf118ae8 MM |
235 | #ifdef __FreeBSD__ |
236 | znode_t *tzp = zp; | |
657ce253 | 237 | |
ba434b18 MM |
238 | /* |
239 | * zrele drops the vnode lock which violates the VOP locking contract | |
240 | * on FreeBSD. See comment at the top of zfs_replay.c for more detail. | |
241 | */ | |
cf118ae8 MM |
242 | /* |
243 | * if zp is XATTR node, keep walking up via z_xattr_parent until we | |
244 | * get the owner | |
245 | */ | |
246 | while (tzp->z_pflags & ZFS_XATTR) { | |
247 | ASSERT3U(zp->z_xattr_parent, !=, 0); | |
248 | if (zfs_zget(ZTOZSB(tzp), tzp->z_xattr_parent, &dzp) != 0) { | |
249 | unlinked = 1; | |
250 | break; | |
251 | } | |
252 | ||
253 | if (tzp != zp) | |
254 | zrele(tzp); | |
255 | tzp = dzp; | |
256 | unlinked = tzp->z_unlinked; | |
257 | } | |
258 | if (tzp != zp) | |
259 | zrele(tzp); | |
260 | #else | |
657ce253 | 261 | zhold(zp); |
98701490 CC |
262 | /* |
263 | * if zp is XATTR node, keep walking up via z_xattr_parent until we | |
264 | * get the owner | |
265 | */ | |
266 | while (zp->z_pflags & ZFS_XATTR) { | |
267 | ASSERT3U(zp->z_xattr_parent, !=, 0); | |
268 | if (zfs_zget(ZTOZSB(zp), zp->z_xattr_parent, &dzp) != 0) { | |
269 | unlinked = 1; | |
270 | break; | |
271 | } | |
cf118ae8 | 272 | |
657ce253 | 273 | zrele(zp); |
98701490 CC |
274 | zp = dzp; |
275 | unlinked = zp->z_unlinked; | |
276 | } | |
657ce253 | 277 | zrele(zp); |
ba434b18 | 278 | #endif |
98701490 CC |
279 | return (unlinked); |
280 | } | |
281 | ||
34dc7c2f | 282 | /* |
d3cc8b15 WA |
283 | * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and |
284 | * TK_MKXATTR transactions. | |
34dc7c2f BB |
285 | * |
286 | * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID | |
287 | * domain information appended prior to the name. In this case the | |
288 | * uid/gid in the log record will be a log centric FUID. | |
289 | * | |
290 | * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that | |
291 | * may contain attributes, ACL and optional fuid information. | |
292 | * | |
293 | * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify | |
294 | * and ACL and normal users/groups in the ACEs. | |
295 | * | |
296 | * There may be an optional xvattr attribute information similar | |
297 | * to zfs_log_setattr. | |
298 | * | |
299 | * Also, after the file name "domain" strings may be appended. | |
300 | */ | |
301 | void | |
302 | zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
4d55ea81 | 303 | znode_t *dzp, znode_t *zp, const char *name, vsecattr_t *vsecp, |
34dc7c2f BB |
304 | zfs_fuid_info_t *fuidp, vattr_t *vap) |
305 | { | |
306 | itx_t *itx; | |
34dc7c2f BB |
307 | lr_create_t *lr; |
308 | lr_acl_create_t *lracl; | |
5484965a | 309 | size_t aclsize = 0; |
34dc7c2f BB |
310 | size_t xvatsize = 0; |
311 | size_t txsize; | |
a117a6d6 | 312 | xvattr_t *xvap = (xvattr_t *)vap; |
34dc7c2f BB |
313 | void *end; |
314 | size_t lrsize; | |
34dc7c2f BB |
315 | size_t namesize = strlen(name) + 1; |
316 | size_t fuidsz = 0; | |
317 | ||
98701490 | 318 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
319 | return; |
320 | ||
321 | /* | |
322 | * If we have FUIDs present then add in space for | |
323 | * domains and ACE fuid's if any. | |
324 | */ | |
325 | if (fuidp) { | |
326 | fuidsz += fuidp->z_domain_str_sz; | |
327 | fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); | |
328 | } | |
329 | ||
5484965a | 330 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
331 | xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); |
332 | ||
333 | if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || | |
334 | (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || | |
335 | (int)txtype == TX_MKXATTR) { | |
336 | txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; | |
337 | lrsize = sizeof (*lr); | |
338 | } else { | |
34dc7c2f BB |
339 | txsize = |
340 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
341 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
342 | lrsize = sizeof (lr_acl_create_t); | |
343 | } | |
344 | ||
345 | itx = zil_itx_create(txtype, txsize); | |
346 | ||
347 | lr = (lr_create_t *)&itx->itx_lr; | |
348 | lr->lr_doid = dzp->z_id; | |
349 | lr->lr_foid = zp->z_id; | |
50c957f7 NB |
350 | /* Store dnode slot count in 8 bits above object id. */ |
351 | LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT); | |
428870ff | 352 | lr->lr_mode = zp->z_mode; |
6360e277 MM |
353 | if (!IS_EPHEMERAL(KUID_TO_SUID(ZTOUID(zp)))) { |
354 | lr->lr_uid = (uint64_t)KUID_TO_SUID(ZTOUID(zp)); | |
34dc7c2f BB |
355 | } else { |
356 | lr->lr_uid = fuidp->z_fuid_owner; | |
357 | } | |
6360e277 MM |
358 | if (!IS_EPHEMERAL(KGID_TO_SGID(ZTOGID(zp)))) { |
359 | lr->lr_gid = (uint64_t)KGID_TO_SGID(ZTOGID(zp)); | |
34dc7c2f BB |
360 | } else { |
361 | lr->lr_gid = fuidp->z_fuid_group; | |
362 | } | |
633e8030 | 363 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 364 | sizeof (uint64_t)); |
633e8030 | 365 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff BB |
366 | lr->lr_crtime, sizeof (uint64_t) * 2); |
367 | ||
633e8030 | 368 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(ZTOZSB(zp)), &lr->lr_rdev, |
428870ff BB |
369 | sizeof (lr->lr_rdev)) != 0) |
370 | lr->lr_rdev = 0; | |
34dc7c2f BB |
371 | |
372 | /* | |
373 | * Fill in xvattr info if any | |
374 | */ | |
5484965a | 375 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
376 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); |
377 | end = (caddr_t)lr + lrsize + xvatsize; | |
378 | } else { | |
379 | end = (caddr_t)lr + lrsize; | |
380 | } | |
381 | ||
382 | /* Now fill in any ACL info */ | |
383 | ||
384 | if (vsecp) { | |
385 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
386 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
387 | lracl->lr_acl_bytes = aclsize; | |
388 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
389 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
390 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
391 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
392 | else | |
393 | lracl->lr_acl_flags = 0; | |
394 | ||
395 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
396 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
397 | } | |
398 | ||
399 | /* drop in FUID info */ | |
400 | if (fuidp) { | |
401 | end = zfs_log_fuid_ids(fuidp, end); | |
402 | end = zfs_log_fuid_domains(fuidp, end); | |
403 | } | |
404 | /* | |
405 | * Now place file name in log record | |
406 | */ | |
407 | bcopy(name, end, namesize); | |
408 | ||
572e2857 | 409 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
410 | } |
411 | ||
412 | /* | |
d3cc8b15 | 413 | * Handles both TX_REMOVE and TX_RMDIR transactions. |
34dc7c2f BB |
414 | */ |
415 | void | |
416 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
4d55ea81 | 417 | znode_t *dzp, const char *name, uint64_t foid, boolean_t unlinked) |
34dc7c2f BB |
418 | { |
419 | itx_t *itx; | |
34dc7c2f BB |
420 | lr_remove_t *lr; |
421 | size_t namesize = strlen(name) + 1; | |
422 | ||
98701490 | 423 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
424 | return; |
425 | ||
426 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
427 | lr = (lr_remove_t *)&itx->itx_lr; | |
428 | lr->lr_doid = dzp->z_id; | |
429 | bcopy(name, (char *)(lr + 1), namesize); | |
430 | ||
572e2857 BB |
431 | itx->itx_oid = foid; |
432 | ||
8e556c5e CC |
433 | /* |
434 | * Object ids can be re-instantiated in the next txg so | |
435 | * remove any async transactions to avoid future leaks. | |
436 | * This can happen if a fsync occurs on the re-instantiated | |
437 | * object for a WR_INDIRECT or WR_NEED_COPY write, which gets | |
438 | * the new file data and flushes a write record for the old object. | |
439 | */ | |
440 | if (unlinked) { | |
441 | ASSERT((txtype & ~TX_CI) == TX_REMOVE); | |
442 | zil_remove_async(zilog, foid); | |
443 | } | |
572e2857 | 444 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
445 | } |
446 | ||
447 | /* | |
d3cc8b15 | 448 | * Handles TX_LINK transactions. |
34dc7c2f BB |
449 | */ |
450 | void | |
451 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
4d55ea81 | 452 | znode_t *dzp, znode_t *zp, const char *name) |
34dc7c2f BB |
453 | { |
454 | itx_t *itx; | |
34dc7c2f BB |
455 | lr_link_t *lr; |
456 | size_t namesize = strlen(name) + 1; | |
457 | ||
428870ff | 458 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
459 | return; |
460 | ||
461 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
462 | lr = (lr_link_t *)&itx->itx_lr; | |
463 | lr->lr_doid = dzp->z_id; | |
464 | lr->lr_link_obj = zp->z_id; | |
465 | bcopy(name, (char *)(lr + 1), namesize); | |
466 | ||
572e2857 | 467 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
468 | } |
469 | ||
470 | /* | |
d3cc8b15 | 471 | * Handles TX_SYMLINK transactions. |
34dc7c2f BB |
472 | */ |
473 | void | |
474 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
4d55ea81 | 475 | znode_t *dzp, znode_t *zp, const char *name, const char *link) |
34dc7c2f BB |
476 | { |
477 | itx_t *itx; | |
34dc7c2f BB |
478 | lr_create_t *lr; |
479 | size_t namesize = strlen(name) + 1; | |
480 | size_t linksize = strlen(link) + 1; | |
481 | ||
428870ff | 482 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
483 | return; |
484 | ||
485 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
486 | lr = (lr_create_t *)&itx->itx_lr; | |
487 | lr->lr_doid = dzp->z_id; | |
488 | lr->lr_foid = zp->z_id; | |
6360e277 MM |
489 | lr->lr_uid = KUID_TO_SUID(ZTOUID(zp)); |
490 | lr->lr_gid = KGID_TO_SGID(ZTOGID(zp)); | |
428870ff | 491 | lr->lr_mode = zp->z_mode; |
3558fd73 | 492 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 493 | sizeof (uint64_t)); |
3558fd73 | 494 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff | 495 | lr->lr_crtime, sizeof (uint64_t) * 2); |
34dc7c2f BB |
496 | bcopy(name, (char *)(lr + 1), namesize); |
497 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
498 | ||
572e2857 | 499 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
500 | } |
501 | ||
502 | /* | |
d3cc8b15 | 503 | * Handles TX_RENAME transactions. |
34dc7c2f BB |
504 | */ |
505 | void | |
4d55ea81 RM |
506 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, znode_t *sdzp, |
507 | const char *sname, znode_t *tdzp, const char *dname, znode_t *szp) | |
34dc7c2f BB |
508 | { |
509 | itx_t *itx; | |
34dc7c2f BB |
510 | lr_rename_t *lr; |
511 | size_t snamesize = strlen(sname) + 1; | |
512 | size_t dnamesize = strlen(dname) + 1; | |
513 | ||
428870ff | 514 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
515 | return; |
516 | ||
517 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
518 | lr = (lr_rename_t *)&itx->itx_lr; | |
519 | lr->lr_sdoid = sdzp->z_id; | |
520 | lr->lr_tdoid = tdzp->z_id; | |
521 | bcopy(sname, (char *)(lr + 1), snamesize); | |
522 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 523 | itx->itx_oid = szp->z_id; |
34dc7c2f | 524 | |
572e2857 | 525 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
526 | } |
527 | ||
528 | /* | |
119a394a ED |
529 | * zfs_log_write() handles TX_WRITE transactions. The specified callback is |
530 | * called as soon as the write is on stable storage (be it via a DMU sync or a | |
531 | * ZIL commit). | |
34dc7c2f | 532 | */ |
18168da7 | 533 | static long zfs_immediate_write_sz = 32768; |
34dc7c2f | 534 | |
34dc7c2f BB |
535 | void |
536 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
e9aa730c GM |
537 | znode_t *zp, offset_t off, ssize_t resid, int ioflag, |
538 | zil_callback_t callback, void *callback_data) | |
34dc7c2f | 539 | { |
c8bbf7c0 | 540 | dmu_buf_impl_t *db = (dmu_buf_impl_t *)sa_get_db(zp->z_sa_hdl); |
1b7c1e5c | 541 | uint32_t blocksize = zp->z_blksz; |
34dc7c2f | 542 | itx_wr_state_t write_state; |
d5446cfc | 543 | uintptr_t fsync_cnt; |
296a4a36 | 544 | uint64_t gen = 0; |
a7bd20e3 | 545 | ssize_t size = resid; |
34dc7c2f | 546 | |
98701490 CC |
547 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
548 | zfs_xattr_owner_unlinked(zp)) { | |
119a394a ED |
549 | if (callback != NULL) |
550 | callback(callback_data); | |
34dc7c2f | 551 | return; |
119a394a | 552 | } |
34dc7c2f | 553 | |
1b7c1e5c GDN |
554 | if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
555 | write_state = WR_INDIRECT; | |
556 | else if (!spa_has_slogs(zilog->zl_spa) && | |
557 | resid >= zfs_immediate_write_sz) | |
34dc7c2f | 558 | write_state = WR_INDIRECT; |
da92d5cb | 559 | else if (ioflag & (O_SYNC | O_DSYNC)) |
34dc7c2f BB |
560 | write_state = WR_COPIED; |
561 | else | |
562 | write_state = WR_NEED_COPY; | |
563 | ||
d5446cfc BB |
564 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { |
565 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
566 | } | |
567 | ||
296a4a36 CC |
568 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &gen, |
569 | sizeof (gen)); | |
570 | ||
34dc7c2f BB |
571 | while (resid) { |
572 | itx_t *itx; | |
573 | lr_write_t *lr; | |
1b7c1e5c GDN |
574 | itx_wr_state_t wr_state = write_state; |
575 | ssize_t len = resid; | |
34dc7c2f | 576 | |
b8738257 MA |
577 | /* |
578 | * A WR_COPIED record must fit entirely in one log block. | |
579 | * Large writes can use WR_NEED_COPY, which the ZIL will | |
580 | * split into multiple records across several log blocks | |
581 | * if necessary. | |
582 | */ | |
583 | if (wr_state == WR_COPIED && | |
584 | resid > zil_max_copied_data(zilog)) | |
1b7c1e5c GDN |
585 | wr_state = WR_NEED_COPY; |
586 | else if (wr_state == WR_INDIRECT) | |
587 | len = MIN(blocksize - P2PHASE(off, blocksize), resid); | |
34dc7c2f BB |
588 | |
589 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
1b7c1e5c | 590 | (wr_state == WR_COPIED ? len : 0)); |
34dc7c2f | 591 | lr = (lr_write_t *)&itx->itx_lr; |
c8bbf7c0 | 592 | |
a5c77dc4 CS |
593 | /* |
594 | * For WR_COPIED records, copy the data into the lr_write_t. | |
595 | */ | |
596 | if (wr_state == WR_COPIED) { | |
597 | int err; | |
598 | DB_DNODE_ENTER(db); | |
599 | err = dmu_read_by_dnode(DB_DNODE(db), off, len, lr + 1, | |
600 | DMU_READ_NO_PREFETCH); | |
601 | if (err != 0) { | |
602 | zil_itx_destroy(itx); | |
603 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
604 | lr = (lr_write_t *)&itx->itx_lr; | |
605 | wr_state = WR_NEED_COPY; | |
606 | } | |
607 | DB_DNODE_EXIT(db); | |
34dc7c2f BB |
608 | } |
609 | ||
1b7c1e5c | 610 | itx->itx_wr_state = wr_state; |
34dc7c2f BB |
611 | lr->lr_foid = zp->z_id; |
612 | lr->lr_offset = off; | |
613 | lr->lr_length = len; | |
614 | lr->lr_blkoff = 0; | |
615 | BP_ZERO(&lr->lr_blkptr); | |
616 | ||
3558fd73 | 617 | itx->itx_private = ZTOZSB(zp); |
296a4a36 | 618 | itx->itx_gen = gen; |
34dc7c2f | 619 | |
da92d5cb | 620 | if (!(ioflag & (O_SYNC | O_DSYNC)) && (zp->z_sync_cnt == 0) && |
d5446cfc | 621 | (fsync_cnt == 0)) |
34dc7c2f BB |
622 | itx->itx_sync = B_FALSE; |
623 | ||
119a394a ED |
624 | itx->itx_callback = callback; |
625 | itx->itx_callback_data = callback_data; | |
572e2857 | 626 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
627 | |
628 | off += len; | |
629 | resid -= len; | |
630 | } | |
a7bd20e3 KJ |
631 | |
632 | if (write_state == WR_COPIED || write_state == WR_NEED_COPY) { | |
633 | dsl_pool_wrlog_count(zilog->zl_dmu_pool, size, tx->tx_txg); | |
634 | } | |
34dc7c2f BB |
635 | } |
636 | ||
637 | /* | |
d3cc8b15 | 638 | * Handles TX_TRUNCATE transactions. |
34dc7c2f BB |
639 | */ |
640 | void | |
641 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
e9aa730c | 642 | znode_t *zp, uint64_t off, uint64_t len) |
34dc7c2f BB |
643 | { |
644 | itx_t *itx; | |
34dc7c2f BB |
645 | lr_truncate_t *lr; |
646 | ||
98701490 CC |
647 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
648 | zfs_xattr_owner_unlinked(zp)) | |
34dc7c2f BB |
649 | return; |
650 | ||
651 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
652 | lr = (lr_truncate_t *)&itx->itx_lr; | |
653 | lr->lr_foid = zp->z_id; | |
654 | lr->lr_offset = off; | |
655 | lr->lr_length = len; | |
656 | ||
657 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 658 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
659 | } |
660 | ||
661 | /* | |
d3cc8b15 | 662 | * Handles TX_SETATTR transactions. |
34dc7c2f BB |
663 | */ |
664 | void | |
5484965a BB |
665 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, |
666 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
34dc7c2f BB |
667 | { |
668 | itx_t *itx; | |
34dc7c2f BB |
669 | lr_setattr_t *lr; |
670 | xvattr_t *xvap = (xvattr_t *)vap; | |
671 | size_t recsize = sizeof (lr_setattr_t); | |
672 | void *start; | |
673 | ||
428870ff | 674 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
675 | return; |
676 | ||
677 | /* | |
678 | * If XVATTR set, then log record size needs to allow | |
679 | * for lr_attr_t + xvattr mask, mapsize and create time | |
680 | * plus actual attribute values | |
681 | */ | |
5484965a | 682 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
683 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); |
684 | ||
685 | if (fuidp) | |
686 | recsize += fuidp->z_domain_str_sz; | |
687 | ||
688 | itx = zil_itx_create(txtype, recsize); | |
689 | lr = (lr_setattr_t *)&itx->itx_lr; | |
690 | lr->lr_foid = zp->z_id; | |
691 | lr->lr_mask = (uint64_t)mask_applied; | |
5484965a BB |
692 | lr->lr_mode = (uint64_t)vap->va_mode; |
693 | if ((mask_applied & ATTR_UID) && IS_EPHEMERAL(vap->va_uid)) | |
34dc7c2f BB |
694 | lr->lr_uid = fuidp->z_fuid_owner; |
695 | else | |
5484965a | 696 | lr->lr_uid = (uint64_t)vap->va_uid; |
34dc7c2f | 697 | |
5484965a | 698 | if ((mask_applied & ATTR_GID) && IS_EPHEMERAL(vap->va_gid)) |
34dc7c2f BB |
699 | lr->lr_gid = fuidp->z_fuid_group; |
700 | else | |
5484965a | 701 | lr->lr_gid = (uint64_t)vap->va_gid; |
34dc7c2f | 702 | |
5484965a BB |
703 | lr->lr_size = (uint64_t)vap->va_size; |
704 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
705 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
34dc7c2f | 706 | start = (lr_setattr_t *)(lr + 1); |
5484965a | 707 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
708 | zfs_log_xvattr((lr_attr_t *)start, xvap); |
709 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
710 | } | |
711 | ||
712 | /* | |
713 | * Now stick on domain information if any on end | |
714 | */ | |
715 | ||
716 | if (fuidp) | |
717 | (void) zfs_log_fuid_domains(fuidp, start); | |
718 | ||
719 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 720 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
721 | } |
722 | ||
723 | /* | |
d3cc8b15 | 724 | * Handles TX_ACL transactions. |
34dc7c2f BB |
725 | */ |
726 | void | |
727 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
728 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
729 | { | |
730 | itx_t *itx; | |
34dc7c2f BB |
731 | lr_acl_v0_t *lrv0; |
732 | lr_acl_t *lr; | |
733 | int txtype; | |
734 | int lrsize; | |
735 | size_t txsize; | |
736 | size_t aclbytes = vsecp->vsa_aclentsz; | |
737 | ||
428870ff | 738 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
739 | return; |
740 | ||
3558fd73 | 741 | txtype = (ZTOZSB(zp)->z_version < ZPL_VERSION_FUID) ? |
34dc7c2f BB |
742 | TX_ACL_V0 : TX_ACL; |
743 | ||
744 | if (txtype == TX_ACL) | |
745 | lrsize = sizeof (*lr); | |
746 | else | |
747 | lrsize = sizeof (*lrv0); | |
748 | ||
34dc7c2f BB |
749 | txsize = lrsize + |
750 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
751 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 752 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
753 | |
754 | itx = zil_itx_create(txtype, txsize); | |
755 | ||
756 | lr = (lr_acl_t *)&itx->itx_lr; | |
757 | lr->lr_foid = zp->z_id; | |
758 | if (txtype == TX_ACL) { | |
759 | lr->lr_acl_bytes = aclbytes; | |
760 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
761 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
762 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
763 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
764 | else | |
765 | lr->lr_acl_flags = 0; | |
766 | } | |
767 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
768 | ||
769 | if (txtype == TX_ACL_V0) { | |
770 | lrv0 = (lr_acl_v0_t *)lr; | |
771 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
772 | } else { | |
773 | void *start = (ace_t *)(lr + 1); | |
774 | ||
775 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
776 | ||
777 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
778 | ||
779 | if (fuidp) { | |
780 | start = zfs_log_fuid_ids(fuidp, start); | |
781 | (void) zfs_log_fuid_domains(fuidp, start); | |
782 | } | |
783 | } | |
784 | ||
785 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 786 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 787 | } |
15fd2749 | 788 | |
03fdcb9a MM |
789 | ZFS_MODULE_PARAM(zfs, zfs_, immediate_write_sz, LONG, ZMOD_RW, |
790 | "Largest data block to write to zil"); |