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 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
189 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 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_create));
267 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
269 /* XXX do something about time, uid, gid */
270 rec->cr_opcode = REINT_OPEN;
271 rec->cr_fsuid = from_kuid(&init_user_ns, current_fsuid());
272 rec->cr_fsgid = from_kgid(&init_user_ns, current_fsgid());
273 rec->cr_cap = cfs_curproc_cap_pack();
275 cr_flags = mds_pack_open_flags(flags);
277 rec->cr_umask = current_umask();
278 if (op_data != NULL) {
279 rec->cr_fid1 = op_data->op_fid1;
280 rec->cr_fid2 = op_data->op_fid2;
281 rec->cr_time = op_data->op_mod_time;
282 rec->cr_suppgid1 = op_data->op_suppgids[0];
283 rec->cr_suppgid2 = op_data->op_suppgids[1];
284 rec->cr_bias = op_data->op_bias;
285 rec->cr_open_handle_old = op_data->op_open_handle;
287 if (op_data->op_name) {
288 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
289 op_data->op_namelen);
291 if (op_data->op_bias & MDS_CREATE_VOLATILE)
292 cr_flags |= MDS_OPEN_VOLATILE;
295 mdc_file_secctx_pack(req, op_data->op_file_secctx_name,
296 op_data->op_file_secctx,
297 op_data->op_file_secctx_size);
299 /* pack SELinux policy info if any */
300 mdc_file_sepol_pack(req);
304 cr_flags |= MDS_OPEN_HAS_EA;
305 tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
306 memcpy(tmp, lmm, lmmlen);
308 set_mrc_cr_flags(rec, cr_flags);
311 static inline u64 attr_pack(unsigned int ia_valid, enum op_xvalid ia_xvalid)
315 if (ia_valid & ATTR_MODE)
316 sa_valid |= MDS_ATTR_MODE;
317 if (ia_valid & ATTR_UID)
318 sa_valid |= MDS_ATTR_UID;
319 if (ia_valid & ATTR_GID)
320 sa_valid |= MDS_ATTR_GID;
321 if (ia_valid & ATTR_SIZE)
322 sa_valid |= MDS_ATTR_SIZE;
323 if (ia_valid & ATTR_ATIME)
324 sa_valid |= MDS_ATTR_ATIME;
325 if (ia_valid & ATTR_MTIME)
326 sa_valid |= MDS_ATTR_MTIME;
327 if (ia_valid & ATTR_CTIME)
328 sa_valid |= MDS_ATTR_CTIME;
329 if (ia_valid & ATTR_ATIME_SET)
330 sa_valid |= MDS_ATTR_ATIME_SET;
331 if (ia_valid & ATTR_MTIME_SET)
332 sa_valid |= MDS_ATTR_MTIME_SET;
333 if (ia_valid & ATTR_FORCE)
334 sa_valid |= MDS_ATTR_FORCE;
335 if (ia_xvalid & OP_XVALID_FLAGS)
336 sa_valid |= MDS_ATTR_ATTR_FLAG;
337 if (ia_valid & ATTR_KILL_SUID)
338 sa_valid |= MDS_ATTR_KILL_SUID;
339 if (ia_valid & ATTR_KILL_SGID)
340 sa_valid |= MDS_ATTR_KILL_SGID;
341 if (ia_xvalid & OP_XVALID_CTIME_SET)
342 sa_valid |= MDS_ATTR_CTIME_SET;
343 if (ia_valid & ATTR_OPEN)
344 sa_valid |= MDS_ATTR_FROM_OPEN;
345 if (ia_xvalid & OP_XVALID_BLOCKS)
346 sa_valid |= MDS_ATTR_BLOCKS;
347 if (ia_xvalid & OP_XVALID_OWNEROVERRIDE)
348 /* NFSD hack (see bug 5781) */
349 sa_valid |= MDS_OPEN_OWNEROVERRIDE;
350 if (ia_xvalid & OP_XVALID_PROJID)
351 sa_valid |= MDS_ATTR_PROJID;
352 if (ia_xvalid & OP_XVALID_LAZYSIZE)
353 sa_valid |= MDS_ATTR_LSIZE;
354 if (ia_xvalid & OP_XVALID_LAZYBLOCKS)
355 sa_valid |= MDS_ATTR_LBLOCKS;
359 static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec,
360 struct md_op_data *op_data)
362 rec->sa_opcode = REINT_SETATTR;
363 rec->sa_fsuid = from_kuid(&init_user_ns, current_fsuid());
364 rec->sa_fsgid = from_kgid(&init_user_ns, current_fsgid());
365 rec->sa_cap = cfs_curproc_cap_pack();
366 rec->sa_suppgid = -1;
368 rec->sa_fid = op_data->op_fid1;
369 rec->sa_valid = attr_pack(op_data->op_attr.ia_valid,
371 rec->sa_mode = op_data->op_attr.ia_mode;
372 rec->sa_uid = from_kuid(&init_user_ns, op_data->op_attr.ia_uid);
373 rec->sa_gid = from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
374 rec->sa_projid = op_data->op_projid;
375 rec->sa_size = op_data->op_attr.ia_size;
376 rec->sa_blocks = op_data->op_attr_blocks;
377 rec->sa_atime = op_data->op_attr.ia_atime.tv_sec;
378 rec->sa_mtime = op_data->op_attr.ia_mtime.tv_sec;
379 rec->sa_ctime = op_data->op_attr.ia_ctime.tv_sec;
380 rec->sa_attr_flags = op_data->op_attr_flags;
381 if ((op_data->op_attr.ia_valid & ATTR_GID) &&
382 in_group_p(op_data->op_attr.ia_gid))
384 from_kgid(&init_user_ns, op_data->op_attr.ia_gid);
386 rec->sa_suppgid = op_data->op_suppgids[0];
388 rec->sa_bias = op_data->op_bias;
391 static void mdc_ioepoch_pack(struct mdt_ioepoch *epoch,
392 struct md_op_data *op_data)
394 epoch->mio_open_handle = op_data->op_open_handle;
395 epoch->mio_unused1 = 0;
396 epoch->mio_unused2 = 0;
397 epoch->mio_padding = 0;
400 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
401 void *ea, size_t ealen)
403 struct mdt_rec_setattr *rec;
404 struct lov_user_md *lum = NULL;
406 CLASSERT(sizeof(struct mdt_rec_reint) ==
407 sizeof(struct mdt_rec_setattr));
408 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
409 mdc_setattr_pack_rec(rec, op_data);
414 lum = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
415 if (ea == NULL) { /* Remove LOV EA */
416 lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
417 lum->lmm_stripe_size = 0;
418 lum->lmm_stripe_count = 0;
419 lum->lmm_stripe_offset =
420 (typeof(lum->lmm_stripe_offset))LOV_OFFSET_DEFAULT;
422 memcpy(lum, ea, ealen);
426 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
428 struct mdt_rec_unlink *rec;
430 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_unlink));
431 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
432 LASSERT(rec != NULL);
434 rec->ul_opcode = op_data->op_cli_flags & CLI_RM_ENTRY ?
435 REINT_RMENTRY : REINT_UNLINK;
436 rec->ul_fsuid = op_data->op_fsuid;
437 rec->ul_fsgid = op_data->op_fsgid;
438 rec->ul_cap = op_data->op_cap;
439 rec->ul_mode = op_data->op_mode;
440 rec->ul_suppgid1= op_data->op_suppgids[0];
441 rec->ul_suppgid2= -1;
442 rec->ul_fid1 = op_data->op_fid1;
443 rec->ul_fid2 = op_data->op_fid2;
444 rec->ul_time = op_data->op_mod_time;
445 rec->ul_bias = op_data->op_bias;
447 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
449 /* pack SELinux policy info if any */
450 mdc_file_sepol_pack(req);
453 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
455 struct mdt_rec_link *rec;
457 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_link));
458 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
459 LASSERT (rec != NULL);
461 rec->lk_opcode = REINT_LINK;
462 rec->lk_fsuid = op_data->op_fsuid;//current->fsuid;
463 rec->lk_fsgid = op_data->op_fsgid;//current->fsgid;
464 rec->lk_cap = op_data->op_cap;//current->cap_effective;
465 rec->lk_suppgid1 = op_data->op_suppgids[0];
466 rec->lk_suppgid2 = op_data->op_suppgids[1];
467 rec->lk_fid1 = op_data->op_fid1;
468 rec->lk_fid2 = op_data->op_fid2;
469 rec->lk_time = op_data->op_mod_time;
470 rec->lk_bias = op_data->op_bias;
472 mdc_pack_name(req, &RMF_NAME, op_data->op_name, op_data->op_namelen);
474 /* pack SELinux policy info if any */
475 mdc_file_sepol_pack(req);
478 static void mdc_close_intent_pack(struct ptlrpc_request *req,
479 struct md_op_data *op_data)
481 struct close_data *data;
482 struct ldlm_lock *lock;
483 enum mds_op_bias bias = op_data->op_bias;
485 if (!(bias & (MDS_CLOSE_INTENT | MDS_CLOSE_MIGRATE)))
488 data = req_capsule_client_get(&req->rq_pill, &RMF_CLOSE_DATA);
489 LASSERT(data != NULL);
491 lock = ldlm_handle2lock(&op_data->op_lease_handle);
493 data->cd_handle = lock->l_remote_handle;
496 ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL);
498 data->cd_data_version = op_data->op_data_version;
499 data->cd_fid = op_data->op_fid2;
501 if (bias & MDS_CLOSE_LAYOUT_SPLIT) {
502 data->cd_mirror_id = op_data->op_mirror_id;
503 } else if (bias & MDS_CLOSE_RESYNC_DONE) {
504 struct close_data_resync_done *sync = &data->cd_resync;
506 CLASSERT(sizeof(data->cd_resync) <= sizeof(data->cd_reserved));
507 sync->resync_count = op_data->op_data_size / sizeof(__u32);
508 if (sync->resync_count <= INLINE_RESYNC_ARRAY_SIZE) {
509 memcpy(sync->resync_ids_inline, op_data->op_data,
510 op_data->op_data_size);
512 size_t count = sync->resync_count;
514 memcpy(req_capsule_client_get(&req->rq_pill, &RMF_U32),
515 op_data->op_data, count * sizeof(__u32));
520 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
521 const char *old, size_t oldlen,
522 const char *new, size_t newlen)
524 struct mdt_rec_rename *rec;
526 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
527 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
529 /* XXX do something about time, uid, gid */
530 rec->rn_opcode = REINT_RENAME;
531 rec->rn_fsuid = op_data->op_fsuid;
532 rec->rn_fsgid = op_data->op_fsgid;
533 rec->rn_cap = op_data->op_cap;
534 rec->rn_suppgid1 = op_data->op_suppgids[0];
535 rec->rn_suppgid2 = op_data->op_suppgids[1];
536 rec->rn_fid1 = op_data->op_fid1;
537 rec->rn_fid2 = op_data->op_fid2;
538 rec->rn_time = op_data->op_mod_time;
539 rec->rn_mode = op_data->op_mode;
540 rec->rn_bias = op_data->op_bias;
542 mdc_pack_name(req, &RMF_NAME, old, oldlen);
545 mdc_pack_name(req, &RMF_SYMTGT, new, newlen);
547 /* pack SELinux policy info if any */
548 mdc_file_sepol_pack(req);
551 void mdc_migrate_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
552 const char *name, size_t namelen)
554 struct mdt_rec_rename *rec;
557 CLASSERT(sizeof(struct mdt_rec_reint) == sizeof(struct mdt_rec_rename));
558 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
560 rec->rn_opcode = REINT_MIGRATE;
561 rec->rn_fsuid = op_data->op_fsuid;
562 rec->rn_fsgid = op_data->op_fsgid;
563 rec->rn_cap = op_data->op_cap;
564 rec->rn_suppgid1 = op_data->op_suppgids[0];
565 rec->rn_suppgid2 = op_data->op_suppgids[1];
566 rec->rn_fid1 = op_data->op_fid1;
567 rec->rn_fid2 = op_data->op_fid4;
568 rec->rn_time = op_data->op_mod_time;
569 rec->rn_mode = op_data->op_mode;
570 rec->rn_bias = op_data->op_bias;
572 mdc_pack_name(req, &RMF_NAME, name, namelen);
574 if (op_data->op_bias & MDS_CLOSE_MIGRATE) {
575 struct mdt_ioepoch *epoch;
577 mdc_close_intent_pack(req, op_data);
578 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
579 mdc_ioepoch_pack(epoch, op_data);
582 ea = req_capsule_client_get(&req->rq_pill, &RMF_EADATA);
583 memcpy(ea, op_data->op_data, op_data->op_data_size);
586 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
587 struct md_op_data *op_data, size_t ea_size)
589 struct mdt_body *b = req_capsule_client_get(&req->rq_pill,
592 b->mbo_valid = valid;
593 if (op_data->op_bias & MDS_CROSS_REF)
594 b->mbo_valid |= OBD_MD_FLCROSSREF;
595 b->mbo_eadatasize = ea_size;
596 b->mbo_flags = flags;
597 __mdc_pack_body(b, op_data->op_suppgids[0]);
599 b->mbo_fid1 = op_data->op_fid1;
600 b->mbo_fid2 = op_data->op_fid2;
601 b->mbo_valid |= OBD_MD_FLID;
603 if (op_data->op_name != NULL)
604 mdc_pack_name(req, &RMF_NAME, op_data->op_name,
605 op_data->op_namelen);
608 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data)
610 struct mdt_ioepoch *epoch;
611 struct mdt_rec_setattr *rec;
613 epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH);
614 rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
616 mdc_setattr_pack_rec(rec, op_data);
618 * The client will zero out local timestamps when losing the IBITS lock
619 * so any new RPC timestamps will update the client inode's timestamps.
620 * There was a defect on the server side which allowed the atime to be
621 * overwritten by a zeroed-out atime packed into the close RPC.
623 * Proactively clear the MDS_ATTR_ATIME flag in the RPC in this case
624 * to avoid zeroing the atime on old unpatched servers. See LU-8041.
626 if (rec->sa_atime == 0)
627 rec->sa_valid &= ~MDS_ATTR_ATIME;
629 mdc_ioepoch_pack(epoch, op_data);
630 mdc_close_intent_pack(req, op_data);