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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. |
cae5b340 | 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); | |
169 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) | |
170 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); | |
428870ff BB |
171 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
172 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
173 | XAT0_REPARSE; | |
572e2857 BB |
174 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
175 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
176 | XAT0_OFFLINE; | |
177 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
178 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
179 | XAT0_SPARSE; | |
34dc7c2f BB |
180 | } |
181 | ||
182 | static void * | |
183 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
184 | { | |
185 | zfs_fuid_t *zfuid; | |
186 | uint64_t *fuidloc = start; | |
187 | ||
188 | /* First copy in the ACE FUIDs */ | |
189 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
190 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
191 | *fuidloc++ = zfuid->z_logfuid; | |
192 | } | |
193 | return (fuidloc); | |
194 | } | |
195 | ||
196 | ||
197 | static void * | |
198 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
199 | { | |
200 | zfs_fuid_domain_t *zdomain; | |
201 | ||
202 | /* now copy in the domain info, if any */ | |
203 | if (fuidp->z_domain_str_sz != 0) { | |
204 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
205 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
206 | bcopy((void *)zdomain->z_domain, start, | |
207 | strlen(zdomain->z_domain) + 1); | |
208 | start = (caddr_t)start + | |
209 | strlen(zdomain->z_domain) + 1; | |
210 | } | |
211 | } | |
212 | return (start); | |
213 | } | |
214 | ||
cae5b340 AX |
215 | /* |
216 | * If zp is an xattr node, check whether the xattr owner is unlinked. | |
217 | * We don't want to log anything if the owner is unlinked. | |
218 | */ | |
219 | static int | |
220 | zfs_xattr_owner_unlinked(znode_t *zp) | |
221 | { | |
222 | int unlinked = 0; | |
223 | znode_t *dzp; | |
224 | igrab(ZTOI(zp)); | |
225 | /* | |
226 | * if zp is XATTR node, keep walking up via z_xattr_parent until we | |
227 | * get the owner | |
228 | */ | |
229 | while (zp->z_pflags & ZFS_XATTR) { | |
230 | ASSERT3U(zp->z_xattr_parent, !=, 0); | |
231 | if (zfs_zget(ZTOZSB(zp), zp->z_xattr_parent, &dzp) != 0) { | |
232 | unlinked = 1; | |
233 | break; | |
234 | } | |
235 | iput(ZTOI(zp)); | |
236 | zp = dzp; | |
237 | unlinked = zp->z_unlinked; | |
238 | } | |
239 | iput(ZTOI(zp)); | |
240 | return (unlinked); | |
241 | } | |
242 | ||
34dc7c2f | 243 | /* |
a08ee875 LG |
244 | * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and |
245 | * TK_MKXATTR transactions. | |
34dc7c2f BB |
246 | * |
247 | * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID | |
248 | * domain information appended prior to the name. In this case the | |
249 | * uid/gid in the log record will be a log centric FUID. | |
250 | * | |
251 | * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that | |
252 | * may contain attributes, ACL and optional fuid information. | |
253 | * | |
254 | * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify | |
255 | * and ACL and normal users/groups in the ACEs. | |
256 | * | |
257 | * There may be an optional xvattr attribute information similar | |
258 | * to zfs_log_setattr. | |
259 | * | |
260 | * Also, after the file name "domain" strings may be appended. | |
261 | */ | |
262 | void | |
263 | zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
264 | znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, | |
265 | zfs_fuid_info_t *fuidp, vattr_t *vap) | |
266 | { | |
267 | itx_t *itx; | |
34dc7c2f BB |
268 | lr_create_t *lr; |
269 | lr_acl_create_t *lracl; | |
5484965a | 270 | size_t aclsize = 0; |
34dc7c2f BB |
271 | size_t xvatsize = 0; |
272 | size_t txsize; | |
a08ee875 | 273 | xvattr_t *xvap = (xvattr_t *)vap; |
34dc7c2f BB |
274 | void *end; |
275 | size_t lrsize; | |
34dc7c2f BB |
276 | size_t namesize = strlen(name) + 1; |
277 | size_t fuidsz = 0; | |
278 | ||
cae5b340 | 279 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
280 | return; |
281 | ||
282 | /* | |
283 | * If we have FUIDs present then add in space for | |
284 | * domains and ACE fuid's if any. | |
285 | */ | |
286 | if (fuidp) { | |
287 | fuidsz += fuidp->z_domain_str_sz; | |
288 | fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); | |
289 | } | |
290 | ||
5484965a | 291 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
292 | xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); |
293 | ||
294 | if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || | |
295 | (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || | |
296 | (int)txtype == TX_MKXATTR) { | |
297 | txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; | |
298 | lrsize = sizeof (*lr); | |
299 | } else { | |
34dc7c2f BB |
300 | txsize = |
301 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
302 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
303 | lrsize = sizeof (lr_acl_create_t); | |
304 | } | |
305 | ||
306 | itx = zil_itx_create(txtype, txsize); | |
307 | ||
308 | lr = (lr_create_t *)&itx->itx_lr; | |
309 | lr->lr_doid = dzp->z_id; | |
310 | lr->lr_foid = zp->z_id; | |
cae5b340 AX |
311 | /* Store dnode slot count in 8 bits above object id. */ |
312 | LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT); | |
428870ff | 313 | lr->lr_mode = zp->z_mode; |
cae5b340 AX |
314 | if (!IS_EPHEMERAL(KUID_TO_SUID(ZTOI(zp)->i_uid))) { |
315 | lr->lr_uid = (uint64_t)KUID_TO_SUID(ZTOI(zp)->i_uid); | |
34dc7c2f BB |
316 | } else { |
317 | lr->lr_uid = fuidp->z_fuid_owner; | |
318 | } | |
cae5b340 AX |
319 | if (!IS_EPHEMERAL(KGID_TO_SGID(ZTOI(zp)->i_gid))) { |
320 | lr->lr_gid = (uint64_t)KGID_TO_SGID(ZTOI(zp)->i_gid); | |
34dc7c2f BB |
321 | } else { |
322 | lr->lr_gid = fuidp->z_fuid_group; | |
323 | } | |
633e8030 | 324 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 325 | sizeof (uint64_t)); |
633e8030 | 326 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff BB |
327 | lr->lr_crtime, sizeof (uint64_t) * 2); |
328 | ||
633e8030 | 329 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(ZTOZSB(zp)), &lr->lr_rdev, |
428870ff BB |
330 | sizeof (lr->lr_rdev)) != 0) |
331 | lr->lr_rdev = 0; | |
34dc7c2f BB |
332 | |
333 | /* | |
334 | * Fill in xvattr info if any | |
335 | */ | |
5484965a | 336 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
337 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); |
338 | end = (caddr_t)lr + lrsize + xvatsize; | |
339 | } else { | |
340 | end = (caddr_t)lr + lrsize; | |
341 | } | |
342 | ||
343 | /* Now fill in any ACL info */ | |
344 | ||
345 | if (vsecp) { | |
346 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
347 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
348 | lracl->lr_acl_bytes = aclsize; | |
349 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
350 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
351 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
352 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
353 | else | |
354 | lracl->lr_acl_flags = 0; | |
355 | ||
356 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
357 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
358 | } | |
359 | ||
360 | /* drop in FUID info */ | |
361 | if (fuidp) { | |
362 | end = zfs_log_fuid_ids(fuidp, end); | |
363 | end = zfs_log_fuid_domains(fuidp, end); | |
364 | } | |
365 | /* | |
366 | * Now place file name in log record | |
367 | */ | |
368 | bcopy(name, end, namesize); | |
369 | ||
572e2857 | 370 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
371 | } |
372 | ||
373 | /* | |
a08ee875 | 374 | * Handles both TX_REMOVE and TX_RMDIR transactions. |
34dc7c2f BB |
375 | */ |
376 | void | |
377 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
cae5b340 | 378 | znode_t *dzp, char *name, uint64_t foid) |
34dc7c2f BB |
379 | { |
380 | itx_t *itx; | |
34dc7c2f BB |
381 | lr_remove_t *lr; |
382 | size_t namesize = strlen(name) + 1; | |
383 | ||
cae5b340 | 384 | if (zil_replaying(zilog, tx) || zfs_xattr_owner_unlinked(dzp)) |
34dc7c2f BB |
385 | return; |
386 | ||
387 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
388 | lr = (lr_remove_t *)&itx->itx_lr; | |
389 | lr->lr_doid = dzp->z_id; | |
390 | bcopy(name, (char *)(lr + 1), namesize); | |
391 | ||
572e2857 BB |
392 | itx->itx_oid = foid; |
393 | ||
394 | zil_itx_assign(zilog, itx, tx); | |
34dc7c2f BB |
395 | } |
396 | ||
397 | /* | |
a08ee875 | 398 | * Handles TX_LINK transactions. |
34dc7c2f BB |
399 | */ |
400 | void | |
401 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
cae5b340 | 402 | znode_t *dzp, znode_t *zp, char *name) |
34dc7c2f BB |
403 | { |
404 | itx_t *itx; | |
34dc7c2f BB |
405 | lr_link_t *lr; |
406 | size_t namesize = strlen(name) + 1; | |
407 | ||
428870ff | 408 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
409 | return; |
410 | ||
411 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
412 | lr = (lr_link_t *)&itx->itx_lr; | |
413 | lr->lr_doid = dzp->z_id; | |
414 | lr->lr_link_obj = zp->z_id; | |
415 | bcopy(name, (char *)(lr + 1), namesize); | |
416 | ||
572e2857 | 417 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
418 | } |
419 | ||
420 | /* | |
a08ee875 | 421 | * Handles TX_SYMLINK transactions. |
34dc7c2f BB |
422 | */ |
423 | void | |
424 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
425 | znode_t *dzp, znode_t *zp, char *name, char *link) | |
426 | { | |
427 | itx_t *itx; | |
34dc7c2f BB |
428 | lr_create_t *lr; |
429 | size_t namesize = strlen(name) + 1; | |
430 | size_t linksize = strlen(link) + 1; | |
431 | ||
428870ff | 432 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
433 | return; |
434 | ||
435 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
436 | lr = (lr_create_t *)&itx->itx_lr; | |
437 | lr->lr_doid = dzp->z_id; | |
438 | lr->lr_foid = zp->z_id; | |
cae5b340 AX |
439 | lr->lr_uid = KUID_TO_SUID(ZTOI(zp)->i_uid); |
440 | lr->lr_gid = KGID_TO_SGID(ZTOI(zp)->i_gid); | |
428870ff | 441 | lr->lr_mode = zp->z_mode; |
3558fd73 | 442 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 443 | sizeof (uint64_t)); |
3558fd73 | 444 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff | 445 | lr->lr_crtime, sizeof (uint64_t) * 2); |
34dc7c2f BB |
446 | bcopy(name, (char *)(lr + 1), namesize); |
447 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
448 | ||
572e2857 | 449 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
450 | } |
451 | ||
452 | /* | |
a08ee875 | 453 | * Handles TX_RENAME transactions. |
34dc7c2f BB |
454 | */ |
455 | void | |
456 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
cae5b340 | 457 | znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) |
34dc7c2f BB |
458 | { |
459 | itx_t *itx; | |
34dc7c2f BB |
460 | lr_rename_t *lr; |
461 | size_t snamesize = strlen(sname) + 1; | |
462 | size_t dnamesize = strlen(dname) + 1; | |
463 | ||
428870ff | 464 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
465 | return; |
466 | ||
467 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
468 | lr = (lr_rename_t *)&itx->itx_lr; | |
469 | lr->lr_sdoid = sdzp->z_id; | |
470 | lr->lr_tdoid = tdzp->z_id; | |
471 | bcopy(sname, (char *)(lr + 1), snamesize); | |
472 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 473 | itx->itx_oid = szp->z_id; |
34dc7c2f | 474 | |
572e2857 | 475 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
476 | } |
477 | ||
478 | /* | |
a08ee875 LG |
479 | * zfs_log_write() handles TX_WRITE transactions. The specified callback is |
480 | * called as soon as the write is on stable storage (be it via a DMU sync or a | |
481 | * ZIL commit). | |
34dc7c2f | 482 | */ |
15fd2749 | 483 | long zfs_immediate_write_sz = 32768; |
34dc7c2f | 484 | |
34dc7c2f BB |
485 | void |
486 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
cae5b340 AX |
487 | znode_t *zp, offset_t off, ssize_t resid, int ioflag, |
488 | zil_callback_t callback, void *callback_data) | |
34dc7c2f | 489 | { |
cae5b340 | 490 | uint32_t blocksize = zp->z_blksz; |
34dc7c2f | 491 | itx_wr_state_t write_state; |
d5446cfc | 492 | uintptr_t fsync_cnt; |
34dc7c2f | 493 | |
cae5b340 AX |
494 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
495 | zfs_xattr_owner_unlinked(zp)) { | |
a08ee875 LG |
496 | if (callback != NULL) |
497 | callback(callback_data); | |
34dc7c2f | 498 | return; |
a08ee875 | 499 | } |
34dc7c2f | 500 | |
cae5b340 AX |
501 | if (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
502 | write_state = WR_INDIRECT; | |
503 | else if (!spa_has_slogs(zilog->zl_spa) && | |
504 | resid >= zfs_immediate_write_sz) | |
34dc7c2f BB |
505 | write_state = WR_INDIRECT; |
506 | else if (ioflag & (FSYNC | FDSYNC)) | |
507 | write_state = WR_COPIED; | |
508 | else | |
509 | write_state = WR_NEED_COPY; | |
510 | ||
d5446cfc BB |
511 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { |
512 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
513 | } | |
514 | ||
34dc7c2f BB |
515 | while (resid) { |
516 | itx_t *itx; | |
517 | lr_write_t *lr; | |
cae5b340 AX |
518 | itx_wr_state_t wr_state = write_state; |
519 | ssize_t len = resid; | |
34dc7c2f | 520 | |
cae5b340 AX |
521 | if (wr_state == WR_COPIED && resid > ZIL_MAX_COPIED_DATA) |
522 | wr_state = WR_NEED_COPY; | |
523 | else if (wr_state == WR_INDIRECT) | |
524 | len = MIN(blocksize - P2PHASE(off, blocksize), resid); | |
34dc7c2f BB |
525 | |
526 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
cae5b340 | 527 | (wr_state == WR_COPIED ? len : 0)); |
34dc7c2f | 528 | lr = (lr_write_t *)&itx->itx_lr; |
cae5b340 | 529 | if (wr_state == WR_COPIED && dmu_read(ZTOZSB(zp)->z_os, |
9babb374 | 530 | zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { |
428870ff | 531 | zil_itx_destroy(itx); |
34dc7c2f BB |
532 | itx = zil_itx_create(txtype, sizeof (*lr)); |
533 | lr = (lr_write_t *)&itx->itx_lr; | |
cae5b340 | 534 | wr_state = WR_NEED_COPY; |
34dc7c2f BB |
535 | } |
536 | ||
cae5b340 | 537 | itx->itx_wr_state = wr_state; |
34dc7c2f BB |
538 | lr->lr_foid = zp->z_id; |
539 | lr->lr_offset = off; | |
540 | lr->lr_length = len; | |
541 | lr->lr_blkoff = 0; | |
542 | BP_ZERO(&lr->lr_blkptr); | |
543 | ||
3558fd73 | 544 | itx->itx_private = ZTOZSB(zp); |
34dc7c2f | 545 | |
d5446cfc BB |
546 | if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && |
547 | (fsync_cnt == 0)) | |
34dc7c2f BB |
548 | itx->itx_sync = B_FALSE; |
549 | ||
a08ee875 LG |
550 | itx->itx_callback = callback; |
551 | itx->itx_callback_data = callback_data; | |
572e2857 | 552 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
553 | |
554 | off += len; | |
555 | resid -= len; | |
556 | } | |
557 | } | |
558 | ||
559 | /* | |
a08ee875 | 560 | * Handles TX_TRUNCATE transactions. |
34dc7c2f BB |
561 | */ |
562 | void | |
563 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
cae5b340 | 564 | znode_t *zp, uint64_t off, uint64_t len) |
34dc7c2f BB |
565 | { |
566 | itx_t *itx; | |
34dc7c2f BB |
567 | lr_truncate_t *lr; |
568 | ||
cae5b340 AX |
569 | if (zil_replaying(zilog, tx) || zp->z_unlinked || |
570 | zfs_xattr_owner_unlinked(zp)) | |
34dc7c2f BB |
571 | return; |
572 | ||
573 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
574 | lr = (lr_truncate_t *)&itx->itx_lr; | |
575 | lr->lr_foid = zp->z_id; | |
576 | lr->lr_offset = off; | |
577 | lr->lr_length = len; | |
578 | ||
579 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 580 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
581 | } |
582 | ||
583 | /* | |
a08ee875 | 584 | * Handles TX_SETATTR transactions. |
34dc7c2f BB |
585 | */ |
586 | void | |
5484965a BB |
587 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, |
588 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
34dc7c2f BB |
589 | { |
590 | itx_t *itx; | |
34dc7c2f BB |
591 | lr_setattr_t *lr; |
592 | xvattr_t *xvap = (xvattr_t *)vap; | |
593 | size_t recsize = sizeof (lr_setattr_t); | |
594 | void *start; | |
595 | ||
428870ff | 596 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
597 | return; |
598 | ||
599 | /* | |
600 | * If XVATTR set, then log record size needs to allow | |
601 | * for lr_attr_t + xvattr mask, mapsize and create time | |
602 | * plus actual attribute values | |
603 | */ | |
5484965a | 604 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
605 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); |
606 | ||
607 | if (fuidp) | |
608 | recsize += fuidp->z_domain_str_sz; | |
609 | ||
610 | itx = zil_itx_create(txtype, recsize); | |
611 | lr = (lr_setattr_t *)&itx->itx_lr; | |
612 | lr->lr_foid = zp->z_id; | |
613 | lr->lr_mask = (uint64_t)mask_applied; | |
5484965a BB |
614 | lr->lr_mode = (uint64_t)vap->va_mode; |
615 | if ((mask_applied & ATTR_UID) && IS_EPHEMERAL(vap->va_uid)) | |
34dc7c2f BB |
616 | lr->lr_uid = fuidp->z_fuid_owner; |
617 | else | |
5484965a | 618 | lr->lr_uid = (uint64_t)vap->va_uid; |
34dc7c2f | 619 | |
5484965a | 620 | if ((mask_applied & ATTR_GID) && IS_EPHEMERAL(vap->va_gid)) |
34dc7c2f BB |
621 | lr->lr_gid = fuidp->z_fuid_group; |
622 | else | |
5484965a | 623 | lr->lr_gid = (uint64_t)vap->va_gid; |
34dc7c2f | 624 | |
5484965a BB |
625 | lr->lr_size = (uint64_t)vap->va_size; |
626 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
627 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
34dc7c2f | 628 | start = (lr_setattr_t *)(lr + 1); |
5484965a | 629 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
630 | zfs_log_xvattr((lr_attr_t *)start, xvap); |
631 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
632 | } | |
633 | ||
634 | /* | |
635 | * Now stick on domain information if any on end | |
636 | */ | |
637 | ||
638 | if (fuidp) | |
639 | (void) zfs_log_fuid_domains(fuidp, start); | |
640 | ||
641 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 642 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
643 | } |
644 | ||
645 | /* | |
a08ee875 | 646 | * Handles TX_ACL transactions. |
34dc7c2f BB |
647 | */ |
648 | void | |
649 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
650 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
651 | { | |
652 | itx_t *itx; | |
34dc7c2f BB |
653 | lr_acl_v0_t *lrv0; |
654 | lr_acl_t *lr; | |
655 | int txtype; | |
656 | int lrsize; | |
657 | size_t txsize; | |
658 | size_t aclbytes = vsecp->vsa_aclentsz; | |
659 | ||
428870ff | 660 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
661 | return; |
662 | ||
3558fd73 | 663 | txtype = (ZTOZSB(zp)->z_version < ZPL_VERSION_FUID) ? |
34dc7c2f BB |
664 | TX_ACL_V0 : TX_ACL; |
665 | ||
666 | if (txtype == TX_ACL) | |
667 | lrsize = sizeof (*lr); | |
668 | else | |
669 | lrsize = sizeof (*lrv0); | |
670 | ||
34dc7c2f BB |
671 | txsize = lrsize + |
672 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
673 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 674 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
675 | |
676 | itx = zil_itx_create(txtype, txsize); | |
677 | ||
678 | lr = (lr_acl_t *)&itx->itx_lr; | |
679 | lr->lr_foid = zp->z_id; | |
680 | if (txtype == TX_ACL) { | |
681 | lr->lr_acl_bytes = aclbytes; | |
682 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
683 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
684 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
685 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
686 | else | |
687 | lr->lr_acl_flags = 0; | |
688 | } | |
689 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
690 | ||
691 | if (txtype == TX_ACL_V0) { | |
692 | lrv0 = (lr_acl_v0_t *)lr; | |
693 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
694 | } else { | |
695 | void *start = (ace_t *)(lr + 1); | |
696 | ||
697 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
698 | ||
699 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
700 | ||
701 | if (fuidp) { | |
702 | start = zfs_log_fuid_ids(fuidp, start); | |
703 | (void) zfs_log_fuid_domains(fuidp, start); | |
704 | } | |
705 | } | |
706 | ||
707 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 708 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 709 | } |
15fd2749 CP |
710 | |
711 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
712 | module_param(zfs_immediate_write_sz, long, 0644); | |
713 | MODULE_PARM_DESC(zfs_immediate_write_sz, "Largest data block to write to zil"); | |
714 | #endif |