4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #define DEBUG_SUBSYSTEM S_MDC
34 #include <linux/user_namespace.h>
35 #ifdef HAVE_UIDGID_HEADER
36 # include <linux/uidgid.h>
38 #include <lustre_net.h>
39 #include <obd_class.h>
41 #include <cl_object.h>
42 #include "mdc_internal.h"
44 static void set_mrc_cr_flags(struct mdt_rec_create *mrc, __u64 flags)
46 mrc->cr_flags_l = (__u32)(flags & 0xFFFFFFFFUll);
47 mrc->cr_flags_h = (__u32)(flags >> 32);
50 static void __mdc_pack_body(struct mdt_body *b, __u32 suppgid)
54 b->mbo_suppgid = suppgid;
55 b->mbo_uid = from_kuid(&init_user_ns, current_uid());
56 b->mbo_gid = from_kgid(&init_user_ns, current_gid());
57 b->mbo_fsuid = from_kuid(&init_user_ns, current_fsuid());
58 b->mbo_fsgid = from_kgid(&init_user_ns, current_fsgid());
59 b->mbo_capability = cfs_curproc_cap_pack();
62 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
63 struct md_op_data *op_data)
65 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
68 __mdc_pack_body(b, op_data->op_suppgids[0]);
69 b->mbo_fid1 = op_data->op_fid1;
70 b->mbo_fid2 = op_data->op_fid2;
71 b->mbo_valid |= OBD_MD_FLID;
74 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
75 u64 valid, size_t ea_size, u32 suppgid, u32 flags)
77 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
81 b->mbo_eadatasize = ea_size;
83 __mdc_pack_body(b, suppgid);
86 b->mbo_valid |= OBD_MD_FLID;
91 * Pack a name (path component) into a request
93 * \param[in] req request
94 * \param[in] field request field (usually RMF_NAME)
95 * \param[in] name path component
96 * \param[in] name_len length of path component
98 * \a field must be present in \a req and of size \a name_len + 1.
100 * \a name must be '\0' terminated of length \a name_len and represent
101 * a single path component (not contain '/').
103 static void mdc_pack_name(struct ptlrpc_request *req,
104 const struct req_msg_field *field,
105 const char *name, size_t name_len)
111 buf = req_capsule_client_get(&req->rq_pill, field);
112 buf_size = req_capsule_get_size(&req->rq_pill, field, RCL_CLIENT);
114 LASSERT(name != NULL && name_len != 0 &&
115 buf != NULL && buf_size == name_len + 1);
117 cpy_len = strlcpy(buf, name, buf_size);
119 LASSERT(lu_name_is_valid_2(buf, cpy_len));
120 if (cpy_len != name_len)
121 CDEBUG(D_DENTRY, "%s: %s len %zd != %zd, concurrent rename?\n",
122 req->rq_export->exp_obd->obd_name, buf, name_len,
126 void mdc_file_secctx_pack(struct ptlrpc_request *req, const char *secctx_name,
127 const void *secctx, size_t secctx_size)
132 if (secctx_name == NULL)
135 buf = req_capsule_client_get(&req->rq_pill, &RMF_FILE_SECCTX_NAME);
136 buf_size = req_capsule_get_size(&req->rq_pill, &RMF_FILE_SECCTX_NAME,
139 LASSERT(buf_size == strlen(secctx_name) + 1);
140 memcpy(buf, secctx_name, buf_size);
142 buf = req_capsule_client_get(&req->rq_pill, &RMF_FILE_SECCTX);
143 buf_size = req_capsule_get_size(&req->rq_pill, &RMF_FILE_SECCTX,
146 LASSERT(buf_size == secctx_size);
147 memcpy(buf, secctx, buf_size);
150 void mdc_file_sepol_pack(struct ptlrpc_request *req)
155 if (strlen(req->rq_sepol) == 0)
158 buf = req_capsule_client_get(&req->rq_pill, &RMF_SELINUX_POL);
159 buf_size = req_capsule_get_size(&req->rq_pill, &RMF_SELINUX_POL,
162 LASSERT(buf_size == strlen(req->rq_sepol) + 1);
163 snprintf(buf, strlen(req->rq_sepol) + 1, "%s", req->rq_sepol);
166 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
167 const struct lu_fid *fid)
169 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
172 b->mbo_valid |= OBD_MD_FLID;
173 b->mbo_size = pgoff; /* !! */
174 b->mbo_nlink = size; /* !! */
175 __mdc_pack_body(b, -1);
176 b->mbo_mode = LUDA_FID | LUDA_TYPE;
179 /* packing of MDS records */
180 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
181 const void *data, size_t datalen, umode_t mode,
182 uid_t uid, gid_t gid, cfs_cap_t cap_effective, __u64 rdev)
184 struct mdt_rec_create *rec;
188 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
189 sizeof(struct mdt_rec_create));
190 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
192 rec->cr_opcode = REINT_CREATE;
195 rec->cr_cap = cap_effective;
196 rec->cr_fid1 = op_data->op_fid1;
197 rec->cr_fid2 = op_data->op_fid2;
200 rec->cr_time = op_data->op_mod_time;
201 rec->cr_suppgid1 = op_data->op_suppgids[0];
202 rec->cr_suppgid2 = op_data->op_suppgids[1];
204 if (op_data->op_bias & MDS_CREATE_VOLATILE)
205 flags |= MDS_OPEN_VOLATILE;
206 set_mrc_cr_flags(rec, flags);
207 rec->cr_bias = op_data->op_bias;
208 rec->cr_umask = current_umask();
210 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
212 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
213 memcpy(tmp, data, datalen);
216 mdc_file_secctx_pack(req, op_data->op_file_secctx_name,
217 op_data->op_file_secctx,
218 op_data->op_file_secctx_size);
220 /* pack SELinux policy info if any */
221 mdc_file_sepol_pack(req);
224 static inline __u64 mds_pack_open_flags(__u64 flags)
226 __u64 cr_flags = (flags & MDS_OPEN_FL_INTERNAL);
228 if (flags & FMODE_READ)
229 cr_flags |= MDS_FMODE_READ;
230 if (flags & FMODE_WRITE)
231 cr_flags |= MDS_FMODE_WRITE;
233 cr_flags |= MDS_OPEN_CREAT;
235 cr_flags |= MDS_OPEN_EXCL;
237 cr_flags |= MDS_OPEN_TRUNC;
238 if (flags & O_APPEND)
239 cr_flags |= MDS_OPEN_APPEND;
241 cr_flags |= MDS_OPEN_SYNC;
242 if (flags & O_DIRECTORY)
243 cr_flags |= MDS_OPEN_DIRECTORY;
245 if (flags & FMODE_EXEC)
246 cr_flags |= MDS_FMODE_EXEC;
248 if (cl_is_lov_delay_create(flags))
249 cr_flags |= MDS_OPEN_DELAY_CREATE;
251 if (flags & O_NONBLOCK)
252 cr_flags |= MDS_OPEN_NORESTORE;
257 /* packing of MDS records */
258 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
259 umode_t mode, __u64 rdev, __u64 flags, const void *lmm,
262 struct mdt_rec_create *rec;
266 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
267 sizeof(struct mdt_rec_create));
268 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
270 /* XXX do something about time, uid, gid */
271 rec->cr_opcode = REINT_OPEN;
272 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
273 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
274 rec->cr_cap = cfs_curproc_cap_pack();
276 cr_flags = mds_pack_open_flags(flags);
278 rec->cr_umask = current_umask();
279 if (op_data != NULL) {
280 rec->cr_fid1 = op_data->op_fid1;
281 rec->cr_fid2 = op_data->op_fid2;
282 rec->cr_time = op_data->op_mod_time;
283 rec->cr_suppgid1 = op_data->op_suppgids[0];
284 rec->cr_suppgid2 = op_data->op_suppgids[1];
285 rec->cr_bias = op_data->op_bias;
286 rec->cr_open_handle_old = op_data->op_open_handle;
288 if (op_data->op_name) {
289 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
290 op_data->op_namelen);
292 if (op_data->op_bias & MDS_CREATE_VOLATILE)
293 cr_flags |= MDS_OPEN_VOLATILE;
296 mdc_file_secctx_pack(req, op_data->op_file_secctx_name,
297 op_data->op_file_secctx,
298 op_data->op_file_secctx_size);
300 /* pack SELinux policy info if any */
301 mdc_file_sepol_pack(req);
305 cr_flags |= MDS_OPEN_HAS_EA;
306 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
307 memcpy(tmp, lmm, lmmlen);
308 if (cr_flags & MDS_OPEN_PCC) {
309 LASSERT(op_data != NULL);
310 rec->cr_archive_id = op_data->op_archive_id;
313 set_mrc_cr_flags(rec, cr_flags);
316 static inline u64 attr_pack(unsigned int ia_valid, enum op_xvalid ia_xvalid)
320 if (ia_valid & ATTR_MODE)
321 sa_valid |= MDS_ATTR_MODE;
322 if (ia_valid & ATTR_UID)
323 sa_valid |= MDS_ATTR_UID;
324 if (ia_valid & ATTR_GID)
325 sa_valid |= MDS_ATTR_GID;
326 if (ia_valid & ATTR_SIZE)
327 sa_valid |= MDS_ATTR_SIZE;
328 if (ia_valid & ATTR_ATIME)
329 sa_valid |= MDS_ATTR_ATIME;
330 if (ia_valid & ATTR_MTIME)
331 sa_valid |= MDS_ATTR_MTIME;
332 if (ia_valid & ATTR_CTIME)
333 sa_valid |= MDS_ATTR_CTIME;
334 if (ia_valid & ATTR_ATIME_SET)
335 sa_valid |= MDS_ATTR_ATIME_SET;
336 if (ia_valid & ATTR_MTIME_SET)
337 sa_valid |= MDS_ATTR_MTIME_SET;
338 if (ia_valid & ATTR_FORCE)
339 sa_valid |= MDS_ATTR_FORCE;
340 if (ia_xvalid & OP_XVALID_FLAGS)
341 sa_valid |= MDS_ATTR_ATTR_FLAG;
342 if (ia_valid & ATTR_KILL_SUID)
343 sa_valid |= MDS_ATTR_KILL_SUID;
344 if (ia_valid & ATTR_KILL_SGID)
345 sa_valid |= MDS_ATTR_KILL_SGID;
346 if (ia_xvalid & OP_XVALID_CTIME_SET)
347 sa_valid |= MDS_ATTR_CTIME_SET;
348 if (ia_valid & ATTR_OPEN)
349 sa_valid |= MDS_ATTR_FROM_OPEN;
350 if (ia_xvalid & OP_XVALID_BLOCKS)
351 sa_valid |= MDS_ATTR_BLOCKS;
352 if (ia_xvalid & OP_XVALID_OWNEROVERRIDE)
353 /* NFSD hack (see bug 5781) */
354 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
355 if (ia_xvalid & OP_XVALID_PROJID)
356 sa_valid |= MDS_ATTR_PROJID;
357 if (ia_xvalid & OP_XVALID_LAZYSIZE)
358 sa_valid |= MDS_ATTR_LSIZE;
359 if (ia_xvalid & OP_XVALID_LAZYBLOCKS)
360 sa_valid |= MDS_ATTR_LBLOCKS;
364 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
365 struct md_op_data *op_data)
367 rec->sa_opcode = REINT_SETATTR;
368 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
369 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
370 rec->sa_cap = cfs_curproc_cap_pack();
371 rec->sa_suppgid = -1;
373 rec->sa_fid = op_data->op_fid1;
374 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid,
376 rec->sa_mode = op_data->op_attr.ia_mode;
377 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
378 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
379 rec->sa_projid = op_data->op_projid;
380 rec->sa_size = op_data->op_attr.ia_size;
381 rec->sa_blocks = op_data->op_attr_blocks;
382 rec->sa_atime = op_data->op_attr.ia_atime.tv_sec;
383 rec->sa_mtime = op_data->op_attr.ia_mtime.tv_sec;
384 rec->sa_ctime = op_data->op_attr.ia_ctime.tv_sec;
385 rec->sa_attr_flags = op_data->op_attr_flags;
386 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
387 in_group_p(op_data->op_attr.ia_gid))
389 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
391 rec->sa_suppgid = op_data->op_suppgids[0];
393 rec->sa_bias = op_data->op_bias;
396 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
397 struct md_op_data *op_data)
399 epoch->mio_open_handle = op_data->op_open_handle;
400 epoch->mio_unused1 = 0;
401 epoch->mio_unused2 = 0;
402 epoch->mio_padding = 0;
405 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
406 void *ea, size_t ealen)
408 struct mdt_rec_setattr *rec;
409 struct lov_user_md *lum = NULL;
411 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
412 sizeof(struct mdt_rec_setattr));
413 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
414 mdc_setattr_pack_rec(rec, op_data);
419 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
420 if (ea == NULL) { /* Remove LOV EA */
421 lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
422 lum->lmm_stripe_size = 0;
423 lum->lmm_stripe_count = 0;
424 lum->lmm_stripe_offset =
425 (typeof(lum->lmm_stripe_offset))LOV_OFFSET_DEFAULT;
427 memcpy(lum, ea, ealen);
431 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
433 struct mdt_rec_unlink *rec;
435 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
436 sizeof(struct mdt_rec_unlink));
437 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
438 LASSERT(rec != NULL);
440 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
441 REINT_RMENTRY : REINT_UNLINK;
442 rec->ul_fsuid = op_data->op_fsuid;
443 rec->ul_fsgid = op_data->op_fsgid;
444 rec->ul_cap = op_data->op_cap;
445 rec->ul_mode = op_data->op_mode;
446 rec->ul_suppgid1 = op_data->op_suppgids[0];
447 rec->ul_suppgid2 = -1;
448 rec->ul_fid1 = op_data->op_fid1;
449 rec->ul_fid2 = op_data->op_fid2;
450 rec->ul_time = op_data->op_mod_time;
451 rec->ul_bias = op_data->op_bias;
453 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
455 /* pack SELinux policy info if any */
456 mdc_file_sepol_pack(req);
459 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
461 struct mdt_rec_link *rec;
463 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
464 sizeof(struct mdt_rec_link));
465 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
466 LASSERT(rec != NULL);
468 rec->lk_opcode = REINT_LINK;
469 rec->lk_fsuid = op_data->op_fsuid; /* current->fsuid; */
470 rec->lk_fsgid = op_data->op_fsgid; /* current->fsgid; */
471 rec->lk_cap = op_data->op_cap; /* current->cap_effective; */
472 rec->lk_suppgid1 = op_data->op_suppgids[0];
473 rec->lk_suppgid2 = op_data->op_suppgids[1];
474 rec->lk_fid1 = op_data->op_fid1;
475 rec->lk_fid2 = op_data->op_fid2;
476 rec->lk_time = op_data->op_mod_time;
477 rec->lk_bias = op_data->op_bias;
479 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
481 /* pack SELinux policy info if any */
482 mdc_file_sepol_pack(req);
485 static void mdc_close_intent_pack(struct ptlrpc_request *req,
486 struct md_op_data *op_data)
488 struct close_data *data;
489 struct ldlm_lock *lock;
490 enum mds_op_bias bias = op_data->op_bias;
492 if (!(bias & (MDS_CLOSE_INTENT | MDS_CLOSE_MIGRATE)))
495 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
496 LASSERT(data != NULL);
498 lock = ldlm_handle2lock(&op_data->op_lease_handle);
500 data->cd_handle = lock->l_remote_handle;
503 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
505 data->cd_data_version = op_data->op_data_version;
506 data->cd_fid = op_data->op_fid2;
508 if (bias & MDS_CLOSE_LAYOUT_SPLIT) {
509 data->cd_mirror_id = op_data->op_mirror_id;
510 } else if (bias & MDS_CLOSE_RESYNC_DONE) {
511 struct close_data_resync_done *sync = &data->cd_resync;
513 BUILD_BUG_ON(sizeof(data->cd_resync) >
514 sizeof(data->cd_reserved));
515 sync->resync_count = op_data->op_data_size / sizeof(__u32);
516 if (sync->resync_count <= INLINE_RESYNC_ARRAY_SIZE) {
517 memcpy(sync->resync_ids_inline, op_data->op_data,
518 op_data->op_data_size);
520 size_t count = sync->resync_count;
522 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_U32),
523 op_data->op_data, count * sizeof(__u32));
525 } else if (bias & MDS_PCC_ATTACH) {
526 data->cd_archive_id = op_data->op_archive_id;
530 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
531 const char *old, size_t oldlen,
532 const char *new, size_t newlen)
534 struct mdt_rec_rename *rec;
536 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
537 sizeof(struct mdt_rec_rename));
538 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
540 /* XXX do something about time, uid, gid */
541 rec->rn_opcode = REINT_RENAME;
542 rec->rn_fsuid = op_data->op_fsuid;
543 rec->rn_fsgid = op_data->op_fsgid;
544 rec->rn_cap = op_data->op_cap;
545 rec->rn_suppgid1 = op_data->op_suppgids[0];
546 rec->rn_suppgid2 = op_data->op_suppgids[1];
547 rec->rn_fid1 = op_data->op_fid1;
548 rec->rn_fid2 = op_data->op_fid2;
549 rec->rn_time = op_data->op_mod_time;
550 rec->rn_mode = op_data->op_mode;
551 rec->rn_bias = op_data->op_bias;
553 mdc_pack_name(req, &RMF_NAME, old, oldlen);
556 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
558 /* pack SELinux policy info if any */
559 mdc_file_sepol_pack(req);
562 void mdc_migrate_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
563 const char *name, size_t namelen)
565 struct mdt_rec_rename *rec;
568 BUILD_BUG_ON(sizeof(struct mdt_rec_reint) !=
569 sizeof(struct mdt_rec_rename));
570 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
572 rec->rn_opcode = REINT_MIGRATE;
573 rec->rn_fsuid = op_data->op_fsuid;
574 rec->rn_fsgid = op_data->op_fsgid;
575 rec->rn_cap = op_data->op_cap;
576 rec->rn_suppgid1 = op_data->op_suppgids[0];
577 rec->rn_suppgid2 = op_data->op_suppgids[1];
578 rec->rn_fid1 = op_data->op_fid1;
579 rec->rn_fid2 = op_data->op_fid4;
580 rec->rn_time = op_data->op_mod_time;
581 rec->rn_mode = op_data->op_mode;
582 rec->rn_bias = op_data->op_bias;
584 mdc_pack_name(req, &RMF_NAME, name, namelen);
586 if (op_data->op_bias & MDS_CLOSE_MIGRATE) {
587 struct mdt_ioepoch *epoch;
589 mdc_close_intent_pack(req, op_data);
590 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
591 mdc_ioepoch_pack(epoch, op_data);
594 ea = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
595 memcpy(ea, op_data->op_data, op_data->op_data_size);
598 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
599 struct md_op_data *op_data, size_t ea_size)
601 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
604 b->mbo_valid = valid;
605 if (op_data->op_bias & MDS_CROSS_REF)
606 b->mbo_valid |= OBD_MD_FLCROSSREF;
607 b->mbo_eadatasize = ea_size;
608 b->mbo_flags = flags;
609 __mdc_pack_body(b, op_data->op_suppgids[0]);
611 b->mbo_fid1 = op_data->op_fid1;
612 b->mbo_fid2 = op_data->op_fid2;
613 b->mbo_valid |= OBD_MD_FLID;
615 if (op_data->op_name != NULL)
616 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
617 op_data->op_namelen);
620 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
622 struct mdt_ioepoch *epoch;
623 struct mdt_rec_setattr *rec;
625 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
626 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
628 mdc_setattr_pack_rec(rec, op_data);
630 * The client will zero out local timestamps when losing the IBITS lock
631 * so any new RPC timestamps will update the client inode's timestamps.
632 * There was a defect on the server side which allowed the atime to be
633 * overwritten by a zeroed-out atime packed into the close RPC.
635 * Proactively clear the MDS_ATTR_ATIME flag in the RPC in this case
636 * to avoid zeroing the atime on old unpatched servers. See LU-8041.
638 if (rec->sa_atime == 0)
639 rec->sa_valid &= ~MDS_ATTR_ATIME;
641 mdc_ioepoch_pack(epoch, op_data);
642 mdc_close_intent_pack(req, op_data);