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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 | ||
60101509 | 25 | |
34dc7c2f BB |
26 | #include <sys/types.h> |
27 | #include <sys/param.h> | |
28 | #include <sys/systm.h> | |
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> | |
42 | #include <sys/mode.h> | |
43 | #include <sys/acl.h> | |
44 | #include <sys/dmu.h> | |
45 | #include <sys/spa.h> | |
46 | #include <sys/zfs_fuid.h> | |
47 | #include <sys/ddi.h> | |
fb5f0bc8 BB |
48 | #include <sys/dsl_dataset.h> |
49 | ||
34dc7c2f | 50 | /* |
fb5f0bc8 BB |
51 | * These zfs_log_* functions must be called within a dmu tx, in one |
52 | * of 2 contexts depending on zilog->z_replay: | |
53 | * | |
54 | * Non replay mode | |
55 | * --------------- | |
56 | * We need to record the transaction so that if it is committed to | |
57 | * the Intent Log then it can be replayed. An intent log transaction | |
58 | * structure (itx_t) is allocated and all the information necessary to | |
59 | * possibly replay the transaction is saved in it. The itx is then assigned | |
60 | * a sequence number and inserted in the in-memory list anchored in the zilog. | |
61 | * | |
62 | * Replay mode | |
63 | * ----------- | |
64 | * We need to mark the intent log record as replayed in the log header. | |
65 | * This is done in the same transaction as the replay so that they | |
66 | * commit atomically. | |
34dc7c2f BB |
67 | */ |
68 | ||
69 | int | |
70 | zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) | |
71 | { | |
5484965a | 72 | int isxvattr = (vap->va_mask & ATTR_XVATTR); |
34dc7c2f BB |
73 | switch (type) { |
74 | case Z_FILE: | |
75 | if (vsecp == NULL && !isxvattr) | |
76 | return (TX_CREATE); | |
77 | if (vsecp && isxvattr) | |
78 | return (TX_CREATE_ACL_ATTR); | |
79 | if (vsecp) | |
80 | return (TX_CREATE_ACL); | |
81 | else | |
82 | return (TX_CREATE_ATTR); | |
83 | /*NOTREACHED*/ | |
84 | case Z_DIR: | |
85 | if (vsecp == NULL && !isxvattr) | |
86 | return (TX_MKDIR); | |
87 | if (vsecp && isxvattr) | |
88 | return (TX_MKDIR_ACL_ATTR); | |
89 | if (vsecp) | |
90 | return (TX_MKDIR_ACL); | |
91 | else | |
92 | return (TX_MKDIR_ATTR); | |
93 | case Z_XATTRDIR: | |
94 | return (TX_MKXATTR); | |
95 | } | |
96 | ASSERT(0); | |
97 | return (TX_MAX_TYPE); | |
98 | } | |
99 | ||
100 | /* | |
101 | * build up the log data necessary for logging xvattr_t | |
102 | * First lr_attr_t is initialized. following the lr_attr_t | |
103 | * is the mapsize and attribute bitmap copied from the xvattr_t. | |
104 | * Following the bitmap and bitmapsize two 64 bit words are reserved | |
105 | * for the create time which may be set. Following the create time | |
106 | * records a single 64 bit integer which has the bits to set on | |
107 | * replay for the xvattr. | |
108 | */ | |
109 | static void | |
110 | zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) | |
111 | { | |
112 | uint32_t *bitmap; | |
113 | uint64_t *attrs; | |
114 | uint64_t *crtime; | |
115 | xoptattr_t *xoap; | |
116 | void *scanstamp; | |
117 | int i; | |
118 | ||
119 | xoap = xva_getxoptattr(xvap); | |
120 | ASSERT(xoap); | |
121 | ||
122 | lrattr->lr_attr_masksize = xvap->xva_mapsize; | |
123 | bitmap = &lrattr->lr_attr_bitmap; | |
124 | for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { | |
125 | *bitmap = xvap->xva_reqattrmap[i]; | |
126 | } | |
127 | ||
128 | /* Now pack the attributes up in a single uint64_t */ | |
129 | attrs = (uint64_t *)bitmap; | |
130 | crtime = attrs + 1; | |
131 | scanstamp = (caddr_t)(crtime + 2); | |
132 | *attrs = 0; | |
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); | |
168 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) | |
169 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); | |
428870ff BB |
170 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
171 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
172 | XAT0_REPARSE; | |
572e2857 BB |
173 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
174 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
175 | XAT0_OFFLINE; | |
176 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
177 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
178 | XAT0_SPARSE; | |
34dc7c2f BB |
179 | } |
180 | ||
181 | static void * | |
182 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
183 | { | |
184 | zfs_fuid_t *zfuid; | |
185 | uint64_t *fuidloc = start; | |
186 | ||
187 | /* First copy in the ACE FUIDs */ | |
188 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
189 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
190 | *fuidloc++ = zfuid->z_logfuid; | |
191 | } | |
192 | return (fuidloc); | |
193 | } | |
194 | ||
195 | ||
196 | static void * | |
197 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
198 | { | |
199 | zfs_fuid_domain_t *zdomain; | |
200 | ||
201 | /* now copy in the domain info, if any */ | |
202 | if (fuidp->z_domain_str_sz != 0) { | |
203 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
204 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
205 | bcopy((void *)zdomain->z_domain, start, | |
206 | strlen(zdomain->z_domain) + 1); | |
207 | start = (caddr_t)start + | |
208 | strlen(zdomain->z_domain) + 1; | |
209 | } | |
210 | } | |
211 | return (start); | |
212 | } | |
213 | ||
214 | /* | |
d3cc8b15 WA |
215 | * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and |
216 | * TK_MKXATTR transactions. | |
34dc7c2f BB |
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; | |
5484965a | 241 | size_t aclsize = 0; |
34dc7c2f BB |
242 | size_t xvatsize = 0; |
243 | size_t txsize; | |
a117a6d6 | 244 | xvattr_t *xvap = (xvattr_t *)vap; |
34dc7c2f BB |
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 | ||
5484965a | 262 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
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 { | |
34dc7c2f BB |
271 | txsize = |
272 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
273 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
274 | lrsize = sizeof (lr_acl_create_t); | |
275 | } | |
276 | ||
277 | itx = zil_itx_create(txtype, txsize); | |
278 | ||
279 | lr = (lr_create_t *)&itx->itx_lr; | |
280 | lr->lr_doid = dzp->z_id; | |
281 | lr->lr_foid = zp->z_id; | |
50c957f7 NB |
282 | /* Store dnode slot count in 8 bits above object id. */ |
283 | LR_FOID_SET_SLOTS(lr->lr_foid, zp->z_dnodesize >> DNODE_SHIFT); | |
428870ff | 284 | lr->lr_mode = zp->z_mode; |
2c6abf15 NB |
285 | if (!IS_EPHEMERAL(KUID_TO_SUID(ZTOI(zp)->i_uid))) { |
286 | lr->lr_uid = (uint64_t)KUID_TO_SUID(ZTOI(zp)->i_uid); | |
34dc7c2f BB |
287 | } else { |
288 | lr->lr_uid = fuidp->z_fuid_owner; | |
289 | } | |
2c6abf15 NB |
290 | if (!IS_EPHEMERAL(KGID_TO_SGID(ZTOI(zp)->i_gid))) { |
291 | lr->lr_gid = (uint64_t)KGID_TO_SGID(ZTOI(zp)->i_gid); | |
34dc7c2f BB |
292 | } else { |
293 | lr->lr_gid = fuidp->z_fuid_group; | |
294 | } | |
633e8030 | 295 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 296 | sizeof (uint64_t)); |
633e8030 | 297 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff BB |
298 | lr->lr_crtime, sizeof (uint64_t) * 2); |
299 | ||
633e8030 | 300 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(ZTOZSB(zp)), &lr->lr_rdev, |
428870ff BB |
301 | sizeof (lr->lr_rdev)) != 0) |
302 | lr->lr_rdev = 0; | |
34dc7c2f BB |
303 | |
304 | /* | |
305 | * Fill in xvattr info if any | |
306 | */ | |
5484965a | 307 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
308 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); |
309 | end = (caddr_t)lr + lrsize + xvatsize; | |
310 | } else { | |
311 | end = (caddr_t)lr + lrsize; | |
312 | } | |
313 | ||
314 | /* Now fill in any ACL info */ | |
315 | ||
316 | if (vsecp) { | |
317 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
318 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
319 | lracl->lr_acl_bytes = aclsize; | |
320 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
321 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
322 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
323 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
324 | else | |
325 | lracl->lr_acl_flags = 0; | |
326 | ||
327 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
328 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
329 | } | |
330 | ||
331 | /* drop in FUID info */ | |
332 | if (fuidp) { | |
333 | end = zfs_log_fuid_ids(fuidp, end); | |
334 | end = zfs_log_fuid_domains(fuidp, end); | |
335 | } | |
336 | /* | |
337 | * Now place file name in log record | |
338 | */ | |
339 | bcopy(name, end, namesize); | |
340 | ||
572e2857 | 341 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
342 | } |
343 | ||
344 | /* | |
d3cc8b15 | 345 | * Handles both TX_REMOVE and TX_RMDIR transactions. |
34dc7c2f BB |
346 | */ |
347 | void | |
348 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
572e2857 | 349 | znode_t *dzp, char *name, uint64_t foid) |
34dc7c2f BB |
350 | { |
351 | itx_t *itx; | |
34dc7c2f BB |
352 | lr_remove_t *lr; |
353 | size_t namesize = strlen(name) + 1; | |
354 | ||
428870ff | 355 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
356 | return; |
357 | ||
358 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
359 | lr = (lr_remove_t *)&itx->itx_lr; | |
360 | lr->lr_doid = dzp->z_id; | |
361 | bcopy(name, (char *)(lr + 1), namesize); | |
362 | ||
572e2857 BB |
363 | itx->itx_oid = foid; |
364 | ||
365 | zil_itx_assign(zilog, itx, tx); | |
34dc7c2f BB |
366 | } |
367 | ||
368 | /* | |
d3cc8b15 | 369 | * Handles TX_LINK transactions. |
34dc7c2f BB |
370 | */ |
371 | void | |
372 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
373 | znode_t *dzp, znode_t *zp, char *name) | |
374 | { | |
375 | itx_t *itx; | |
34dc7c2f BB |
376 | lr_link_t *lr; |
377 | size_t namesize = strlen(name) + 1; | |
378 | ||
428870ff | 379 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
380 | return; |
381 | ||
382 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
383 | lr = (lr_link_t *)&itx->itx_lr; | |
384 | lr->lr_doid = dzp->z_id; | |
385 | lr->lr_link_obj = zp->z_id; | |
386 | bcopy(name, (char *)(lr + 1), namesize); | |
387 | ||
572e2857 | 388 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
389 | } |
390 | ||
391 | /* | |
d3cc8b15 | 392 | * Handles TX_SYMLINK transactions. |
34dc7c2f BB |
393 | */ |
394 | void | |
395 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
396 | znode_t *dzp, znode_t *zp, char *name, char *link) | |
397 | { | |
398 | itx_t *itx; | |
34dc7c2f BB |
399 | lr_create_t *lr; |
400 | size_t namesize = strlen(name) + 1; | |
401 | size_t linksize = strlen(link) + 1; | |
402 | ||
428870ff | 403 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
404 | return; |
405 | ||
406 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
407 | lr = (lr_create_t *)&itx->itx_lr; | |
408 | lr->lr_doid = dzp->z_id; | |
409 | lr->lr_foid = zp->z_id; | |
2c6abf15 NB |
410 | lr->lr_uid = KUID_TO_SUID(ZTOI(zp)->i_uid); |
411 | lr->lr_gid = KGID_TO_SGID(ZTOI(zp)->i_gid); | |
428870ff | 412 | lr->lr_mode = zp->z_mode; |
3558fd73 | 413 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 414 | sizeof (uint64_t)); |
3558fd73 | 415 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff | 416 | lr->lr_crtime, sizeof (uint64_t) * 2); |
34dc7c2f BB |
417 | bcopy(name, (char *)(lr + 1), namesize); |
418 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
419 | ||
572e2857 | 420 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
421 | } |
422 | ||
423 | /* | |
d3cc8b15 | 424 | * Handles TX_RENAME transactions. |
34dc7c2f BB |
425 | */ |
426 | void | |
427 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
428 | znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) | |
429 | { | |
430 | itx_t *itx; | |
34dc7c2f BB |
431 | lr_rename_t *lr; |
432 | size_t snamesize = strlen(sname) + 1; | |
433 | size_t dnamesize = strlen(dname) + 1; | |
434 | ||
428870ff | 435 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
436 | return; |
437 | ||
438 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
439 | lr = (lr_rename_t *)&itx->itx_lr; | |
440 | lr->lr_sdoid = sdzp->z_id; | |
441 | lr->lr_tdoid = tdzp->z_id; | |
442 | bcopy(sname, (char *)(lr + 1), snamesize); | |
443 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 444 | itx->itx_oid = szp->z_id; |
34dc7c2f | 445 | |
572e2857 | 446 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
447 | } |
448 | ||
449 | /* | |
119a394a ED |
450 | * zfs_log_write() handles TX_WRITE transactions. The specified callback is |
451 | * called as soon as the write is on stable storage (be it via a DMU sync or a | |
452 | * ZIL commit). | |
34dc7c2f | 453 | */ |
15fd2749 | 454 | long zfs_immediate_write_sz = 32768; |
34dc7c2f | 455 | |
34dc7c2f BB |
456 | void |
457 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
119a394a ED |
458 | znode_t *zp, offset_t off, ssize_t resid, int ioflag, |
459 | zil_callback_t callback, void *callback_data) | |
34dc7c2f BB |
460 | { |
461 | itx_wr_state_t write_state; | |
462 | boolean_t slogging; | |
d5446cfc | 463 | uintptr_t fsync_cnt; |
428870ff | 464 | ssize_t immediate_write_sz; |
34dc7c2f | 465 | |
119a394a ED |
466 | if (zil_replaying(zilog, tx) || zp->z_unlinked) { |
467 | if (callback != NULL) | |
468 | callback(callback_data); | |
34dc7c2f | 469 | return; |
119a394a | 470 | } |
34dc7c2f | 471 | |
428870ff | 472 | immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
15fd2749 | 473 | ? 0 : (ssize_t)zfs_immediate_write_sz; |
fb5f0bc8 | 474 | |
428870ff BB |
475 | slogging = spa_has_slogs(zilog->zl_spa) && |
476 | (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); | |
477 | if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) | |
34dc7c2f BB |
478 | write_state = WR_INDIRECT; |
479 | else if (ioflag & (FSYNC | FDSYNC)) | |
480 | write_state = WR_COPIED; | |
481 | else | |
482 | write_state = WR_NEED_COPY; | |
483 | ||
d5446cfc BB |
484 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { |
485 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
486 | } | |
487 | ||
34dc7c2f BB |
488 | while (resid) { |
489 | itx_t *itx; | |
490 | lr_write_t *lr; | |
491 | ssize_t len; | |
492 | ||
493 | /* | |
b128c09f | 494 | * If the write would overflow the largest block then split it. |
34dc7c2f | 495 | */ |
b128c09f | 496 | if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) |
f1512ee6 | 497 | len = SPA_OLD_MAXBLOCKSIZE >> 1; |
34dc7c2f BB |
498 | else |
499 | len = resid; | |
500 | ||
501 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
502 | (write_state == WR_COPIED ? len : 0)); | |
503 | lr = (lr_write_t *)&itx->itx_lr; | |
3558fd73 | 504 | if (write_state == WR_COPIED && dmu_read(ZTOZSB(zp)->z_os, |
9babb374 | 505 | zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { |
428870ff | 506 | zil_itx_destroy(itx); |
34dc7c2f BB |
507 | itx = zil_itx_create(txtype, sizeof (*lr)); |
508 | lr = (lr_write_t *)&itx->itx_lr; | |
509 | write_state = WR_NEED_COPY; | |
510 | } | |
511 | ||
512 | itx->itx_wr_state = write_state; | |
513 | if (write_state == WR_NEED_COPY) | |
514 | itx->itx_sod += len; | |
515 | lr->lr_foid = zp->z_id; | |
516 | lr->lr_offset = off; | |
517 | lr->lr_length = len; | |
518 | lr->lr_blkoff = 0; | |
519 | BP_ZERO(&lr->lr_blkptr); | |
520 | ||
3558fd73 | 521 | itx->itx_private = ZTOZSB(zp); |
34dc7c2f | 522 | |
d5446cfc BB |
523 | if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && |
524 | (fsync_cnt == 0)) | |
34dc7c2f BB |
525 | itx->itx_sync = B_FALSE; |
526 | ||
119a394a ED |
527 | itx->itx_callback = callback; |
528 | itx->itx_callback_data = callback_data; | |
572e2857 | 529 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
530 | |
531 | off += len; | |
532 | resid -= len; | |
533 | } | |
534 | } | |
535 | ||
536 | /* | |
d3cc8b15 | 537 | * Handles TX_TRUNCATE transactions. |
34dc7c2f BB |
538 | */ |
539 | void | |
540 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
541 | znode_t *zp, uint64_t off, uint64_t len) | |
542 | { | |
543 | itx_t *itx; | |
34dc7c2f BB |
544 | lr_truncate_t *lr; |
545 | ||
428870ff | 546 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
547 | return; |
548 | ||
549 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
550 | lr = (lr_truncate_t *)&itx->itx_lr; | |
551 | lr->lr_foid = zp->z_id; | |
552 | lr->lr_offset = off; | |
553 | lr->lr_length = len; | |
554 | ||
555 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 556 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
557 | } |
558 | ||
559 | /* | |
d3cc8b15 | 560 | * Handles TX_SETATTR transactions. |
34dc7c2f BB |
561 | */ |
562 | void | |
5484965a BB |
563 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, |
564 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
34dc7c2f BB |
565 | { |
566 | itx_t *itx; | |
34dc7c2f BB |
567 | lr_setattr_t *lr; |
568 | xvattr_t *xvap = (xvattr_t *)vap; | |
569 | size_t recsize = sizeof (lr_setattr_t); | |
570 | void *start; | |
571 | ||
428870ff | 572 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
573 | return; |
574 | ||
575 | /* | |
576 | * If XVATTR set, then log record size needs to allow | |
577 | * for lr_attr_t + xvattr mask, mapsize and create time | |
578 | * plus actual attribute values | |
579 | */ | |
5484965a | 580 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
581 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); |
582 | ||
583 | if (fuidp) | |
584 | recsize += fuidp->z_domain_str_sz; | |
585 | ||
586 | itx = zil_itx_create(txtype, recsize); | |
587 | lr = (lr_setattr_t *)&itx->itx_lr; | |
588 | lr->lr_foid = zp->z_id; | |
589 | lr->lr_mask = (uint64_t)mask_applied; | |
5484965a BB |
590 | lr->lr_mode = (uint64_t)vap->va_mode; |
591 | if ((mask_applied & ATTR_UID) && IS_EPHEMERAL(vap->va_uid)) | |
34dc7c2f BB |
592 | lr->lr_uid = fuidp->z_fuid_owner; |
593 | else | |
5484965a | 594 | lr->lr_uid = (uint64_t)vap->va_uid; |
34dc7c2f | 595 | |
5484965a | 596 | if ((mask_applied & ATTR_GID) && IS_EPHEMERAL(vap->va_gid)) |
34dc7c2f BB |
597 | lr->lr_gid = fuidp->z_fuid_group; |
598 | else | |
5484965a | 599 | lr->lr_gid = (uint64_t)vap->va_gid; |
34dc7c2f | 600 | |
5484965a BB |
601 | lr->lr_size = (uint64_t)vap->va_size; |
602 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
603 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
34dc7c2f | 604 | start = (lr_setattr_t *)(lr + 1); |
5484965a | 605 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
606 | zfs_log_xvattr((lr_attr_t *)start, xvap); |
607 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
608 | } | |
609 | ||
610 | /* | |
611 | * Now stick on domain information if any on end | |
612 | */ | |
613 | ||
614 | if (fuidp) | |
615 | (void) zfs_log_fuid_domains(fuidp, start); | |
616 | ||
617 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 618 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
619 | } |
620 | ||
621 | /* | |
d3cc8b15 | 622 | * Handles TX_ACL transactions. |
34dc7c2f BB |
623 | */ |
624 | void | |
625 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
626 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
627 | { | |
628 | itx_t *itx; | |
34dc7c2f BB |
629 | lr_acl_v0_t *lrv0; |
630 | lr_acl_t *lr; | |
631 | int txtype; | |
632 | int lrsize; | |
633 | size_t txsize; | |
634 | size_t aclbytes = vsecp->vsa_aclentsz; | |
635 | ||
428870ff | 636 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
637 | return; |
638 | ||
3558fd73 | 639 | txtype = (ZTOZSB(zp)->z_version < ZPL_VERSION_FUID) ? |
34dc7c2f BB |
640 | TX_ACL_V0 : TX_ACL; |
641 | ||
642 | if (txtype == TX_ACL) | |
643 | lrsize = sizeof (*lr); | |
644 | else | |
645 | lrsize = sizeof (*lrv0); | |
646 | ||
34dc7c2f BB |
647 | txsize = lrsize + |
648 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
649 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 650 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
651 | |
652 | itx = zil_itx_create(txtype, txsize); | |
653 | ||
654 | lr = (lr_acl_t *)&itx->itx_lr; | |
655 | lr->lr_foid = zp->z_id; | |
656 | if (txtype == TX_ACL) { | |
657 | lr->lr_acl_bytes = aclbytes; | |
658 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
659 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
660 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
661 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
662 | else | |
663 | lr->lr_acl_flags = 0; | |
664 | } | |
665 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
666 | ||
667 | if (txtype == TX_ACL_V0) { | |
668 | lrv0 = (lr_acl_v0_t *)lr; | |
669 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
670 | } else { | |
671 | void *start = (ace_t *)(lr + 1); | |
672 | ||
673 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
674 | ||
675 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
676 | ||
677 | if (fuidp) { | |
678 | start = zfs_log_fuid_ids(fuidp, start); | |
679 | (void) zfs_log_fuid_domains(fuidp, start); | |
680 | } | |
681 | } | |
682 | ||
683 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 684 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 685 | } |
15fd2749 CP |
686 | |
687 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
688 | module_param(zfs_immediate_write_sz, long, 0644); | |
689 | MODULE_PARM_DESC(zfs_immediate_write_sz, "Largest data block to write to zil"); | |
690 | #endif |