1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2003 Cluster File Systems, Inc.
5 * Author: Peter Braam <braam@clusterfs.com>
6 * Author: Andreas Dilger <adilger@clusterfs.com>
7 * Author: Phil Schwan <phil@clusterfs.com>
8 * Author: Mike Shaver <shaver@clusterfs.com>
10 * This file is part of Lustre, http://www.lustre.org.
12 * Lustre is free software; you can redistribute it and/or
13 * modify it under the terms of version 2 of the GNU General Public
14 * License as published by the Free Software Foundation.
16 * Lustre is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with Lustre; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 # define EXPORT_SYMTAB
29 #define DEBUG_SUBSYSTEM S_MDS
31 #include <linux/version.h>
32 #include <linux/module.h>
33 #include <linux/init.h>
34 #include <linux/version.h>
35 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
36 # include <linux/buffer_head.h>
37 # include <linux/workqueue.h>
39 # include <linux/locks.h>
42 #include <linux/obd_class.h>
43 #include <linux/obd_lov.h>
44 #include <linux/lustre_fsfilt.h>
45 #include <linux/lprocfs_status.h>
47 #include "mds_internal.h"
49 /* Exported function from this file are:
51 * mds_open - called by the intent handler
52 * mds_close - an rpc handling function
53 * mds_pin - an rpc handling function - which will go away
54 * mds_mfd_close - for force closing files when a client dies
58 * MDS file data handling: file data holds a handle for a file opened
62 static void mds_mfd_addref(void *mfdp)
64 struct mds_file_data *mfd = mfdp;
66 atomic_inc(&mfd->mfd_refcount);
67 CDEBUG(D_INFO, "GETting mfd %p : new refcount %d\n", mfd,
68 atomic_read(&mfd->mfd_refcount));
71 struct mds_file_data *mds_mfd_new(void)
73 struct mds_file_data *mfd;
75 OBD_ALLOC(mfd, sizeof *mfd);
77 CERROR("mds: out of memory\n");
81 atomic_set(&mfd->mfd_refcount, 2);
83 INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
84 class_handle_hash(&mfd->mfd_handle, mds_mfd_addref);
89 static struct mds_file_data *mds_handle2mfd(struct lustre_handle *handle)
92 LASSERT(handle != NULL);
93 RETURN(class_handle2object(handle->cookie));
96 static void mds_mfd_put(struct mds_file_data *mfd)
98 CDEBUG(D_INFO, "PUTting mfd %p : new refcount %d\n", mfd,
99 atomic_read(&mfd->mfd_refcount) - 1);
100 LASSERT(atomic_read(&mfd->mfd_refcount) > 0 &&
101 atomic_read(&mfd->mfd_refcount) < 0x5a5a);
102 if (atomic_dec_and_test(&mfd->mfd_refcount)) {
103 LASSERT(list_empty(&mfd->mfd_handle.h_link));
104 OBD_FREE(mfd, sizeof *mfd);
108 static void mds_mfd_destroy(struct mds_file_data *mfd)
110 class_handle_unhash(&mfd->mfd_handle);
114 #ifdef IFILTERDATA_ACTUALLY_USED
115 /* Caller must hold mds->mds_epoch_sem */
116 static int mds_alloc_filterdata(struct inode *inode)
118 LASSERT(inode->i_filterdata == NULL);
119 OBD_ALLOC(inode->i_filterdata, sizeof(struct mds_filter_data));
120 if (inode->i_filterdata == NULL)
122 LASSERT(igrab(inode) == inode);
126 /* Caller must hold mds->mds_epoch_sem */
127 static void mds_free_filterdata(struct inode *inode)
129 LASSERT(inode->i_filterdata != NULL);
130 OBD_FREE(inode->i_filterdata, sizeof(struct mds_filter_data));
131 inode->i_filterdata = NULL;
134 #endif /*IFILTERDATA_ACTUALLY_USED*/
136 /* Write access to a file: executors cause a negative count,
137 * writers a positive count. The semaphore is needed to perform
138 * a check for the sign and then increment or decrement atomically.
140 * This code is closely tied to the allocation of the d_fsdata and the
141 * MDS epoch, so we use the same semaphore for the whole lot.
143 * We could use a different semaphore for each file, if it ever shows
144 * up in a profile, which it won't.
146 * epoch argument is nonzero during recovery */
147 static int mds_get_write_access(struct mds_obd *mds, struct inode *inode,
152 down(&mds->mds_epoch_sem);
154 if (atomic_read(&inode->i_writecount) < 0) {
155 up(&mds->mds_epoch_sem);
159 #ifdef IFILTERDATA_ACTUALLY_USED
160 if (MDS_FILTERDATA(inode) && MDS_FILTERDATA(inode)->io_epoch != 0) {
161 CDEBUG(D_INODE, "continuing MDS epoch "LPU64" for ino %lu/%u\n",
162 MDS_FILTERDATA(inode)->io_epoch, inode->i_ino,
163 inode->i_generation);
167 if (inode->i_filterdata == NULL)
168 mds_alloc_filterdata(inode);
169 if (inode->i_filterdata == NULL) {
173 #endif /*IFILTERDATA_ACTUALLY_USED*/
174 if (epoch > mds->mds_io_epoch)
175 mds->mds_io_epoch = epoch;
178 #ifdef IFILTERDATA_ACTUALLY_USED
179 MDS_FILTERDATA(inode)->io_epoch = mds->mds_io_epoch;
180 CDEBUG(D_INODE, "starting MDS epoch "LPU64" for ino %lu/%u\n",
181 mds->mds_io_epoch, inode->i_ino, inode->i_generation);
183 #endif /*IFILTERDATA_ACTUALLY_USED*/
185 atomic_inc(&inode->i_writecount);
186 up(&mds->mds_epoch_sem);
190 /* Returns EAGAIN if the client needs to get size and/or cookies and close
191 * again -- which is never true if the file is about to be unlinked. Otherwise
192 * returns the number of remaining writers. */
193 static int mds_put_write_access(struct mds_obd *mds, struct inode *inode,
194 struct mds_body *body, int unlinking)
199 down(&mds->mds_epoch_sem);
200 atomic_dec(&inode->i_writecount);
201 rc = atomic_read(&inode->i_writecount);
205 if (!unlinking && !(body->valid & OBD_MD_FLSIZE))
206 GOTO(out, rc = EAGAIN);
208 #ifdef IFILTERDATA_ACTUALLY_USED
209 mds_free_filterdata(inode);
212 up(&mds->mds_epoch_sem);
216 static int mds_deny_write_access(struct mds_obd *mds, struct inode *inode)
219 down(&mds->mds_epoch_sem);
220 if (atomic_read(&inode->i_writecount) > 0) {
221 up(&mds->mds_epoch_sem);
224 atomic_dec(&inode->i_writecount);
225 up(&mds->mds_epoch_sem);
229 static void mds_allow_write_access(struct inode *inode)
232 atomic_inc(&inode->i_writecount);
235 int mds_query_write_access(struct inode *inode)
238 RETURN(atomic_read(&inode->i_writecount));
241 /* This replaces the VFS dentry_open, it manages mfd and writecount */
242 static struct mds_file_data *mds_dentry_open(struct dentry *dentry,
243 struct vfsmount *mnt, int flags,
244 struct ptlrpc_request *req)
246 struct mds_export_data *med = &req->rq_export->exp_mds_data;
247 struct mds_obd *mds = mds_req2mds(req);
248 struct mds_file_data *mfd;
249 struct mds_body *body;
255 CERROR("mds: out of memory\n");
256 GOTO(cleanup_dentry, error = -ENOMEM);
259 body = lustre_msg_buf(req->rq_repmsg, 1, sizeof (*body));
261 if (flags & FMODE_WRITE) {
262 /* FIXME: in recovery, need to pass old epoch here */
263 error = mds_get_write_access(mds, dentry->d_inode, 0);
265 GOTO(cleanup_mfd, error);
266 #ifdef IFILTERDATA_ACTUALLY_USED
267 body->io_epoch = MDS_FILTERDATA(dentry->d_inode)->io_epoch;
268 #endif /*IFILTERDATA_ACTUALLY_USED*/
269 } else if (flags & FMODE_EXEC) {
270 error = mds_deny_write_access(mds, dentry->d_inode);
272 GOTO(cleanup_mfd, error);
277 /* Mark the file as open to handle open-unlink. */
279 DOWN_WRITE_I_ALLOC_SEM(dentry->d_inode);
280 mds_orphan_open_inc(dentry->d_inode);
281 UP_WRITE_I_ALLOC_SEM(dentry->d_inode);
283 mfd->mfd_mode = flags;
284 mfd->mfd_dentry = dentry;
285 mfd->mfd_xid = req->rq_xid;
287 spin_lock(&med->med_open_lock);
288 list_add(&mfd->mfd_list, &med->med_open_head);
289 spin_unlock(&med->med_open_lock);
292 body->handle.cookie = mfd->mfd_handle.h_cookie;
298 mds_mfd_destroy(mfd);
300 return ERR_PTR(error);
303 static void mds_objids_from_lmm(obd_id *ids, struct lov_mds_md *lmm,
304 struct lov_desc *desc)
307 for (i = 0; i < le32_to_cpu(lmm->lmm_stripe_count); i++) {
308 ids[le32_to_cpu(lmm->lmm_objects[i].l_ost_idx)] =
309 le64_to_cpu(lmm->lmm_objects[i].l_object_id);
313 /* Must be called with i_sem held */
314 static int mds_create_objects(struct ptlrpc_request *req, int offset,
315 struct mds_update_record *rec,
316 struct mds_obd *mds, struct obd_device *obd,
317 struct dentry *dchild, void **handle,
320 struct obdo *oa = NULL;
321 struct obd_trans_info oti = { 0 };
322 struct mds_body *body;
323 struct lov_stripe_md *lsm = NULL;
324 struct lov_mds_md *lmm = NULL;
325 struct inode *inode = dchild->d_inode;
327 int rc, lmm_bufsize, lmm_size;
330 if (rec->ur_flags & MDS_OPEN_DELAY_CREATE ||
331 !(rec->ur_flags & FMODE_WRITE))
334 body = lustre_msg_buf(req->rq_repmsg, 1, sizeof(*body));
336 if (!S_ISREG(inode->i_mode))
338 if (body->valid & OBD_MD_FLEASIZE)
341 OBD_ALLOC(*ids, mds->mds_dt_desc.ld_tgt_count * sizeof(**ids));
344 oti.oti_objid = *ids;
347 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
348 LASSERT(id_ino(rec->ur_id2));
349 body->valid |= OBD_MD_FLBLKSZ | OBD_MD_FLEASIZE;
350 lmm_size = rec->ur_eadatalen;
351 lmm = rec->ur_eadata;
355 *handle = fsfilt_start(obd,inode,FSFILT_OP_CREATE,NULL);
356 if (IS_ERR(*handle)) {
357 rc = PTR_ERR(*handle);
362 mds_objids_from_lmm(*ids, lmm, &mds->mds_dt_desc);
364 lmm_buf = lustre_msg_buf(req->rq_repmsg, offset, 0);
365 lmm_bufsize = req->rq_repmsg->buflens[offset];
367 LASSERT(lmm_bufsize >= lmm_size);
368 memcpy(lmm_buf, lmm, lmm_size);
369 rc = fsfilt_set_md(obd, inode, *handle, lmm,
372 CERROR("open replay failed to set md:%d\n", rc);
376 if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_MDS_ALLOC_OBDO))
377 GOTO(out_ids, rc = -ENOMEM);
381 GOTO(out_ids, rc = -ENOMEM);
382 oa->o_mode = S_IFREG | 0600;
383 oa->o_id = inode->i_ino;
384 oa->o_gr = FILTER_GROUP_FIRST_MDS + mds->mds_num;
385 oa->o_generation = inode->i_generation;
386 oa->o_uid = 0; /* must have 0 uid / gid on OST */
388 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGENER | OBD_MD_FLTYPE |
389 OBD_MD_FLMODE | OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLGROUP;
392 obdo_from_inode(oa, inode, OBD_MD_FLTYPE|OBD_MD_FLATIME|OBD_MD_FLMTIME|
395 if (!(rec->ur_flags & MDS_OPEN_HAS_OBJS)) {
396 /* check if things like lfs setstripe are sending us the ea */
397 if (rec->ur_flags & MDS_OPEN_HAS_EA) {
398 rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE,
400 0, &lsm, rec->ur_eadata);
404 OBD_ALLOC(lmm, mds->mds_max_mdsize);
406 GOTO(out_oa, rc = -ENOMEM);
408 lmm_size = mds->mds_max_mdsize;
409 rc = mds_get_md(obd, dchild->d_parent->d_inode,
410 lmm, &lmm_size, 1, 0);
412 rc = obd_iocontrol(OBD_IOC_LOV_SETSTRIPE,
415 OBD_FREE(lmm, mds->mds_max_mdsize);
419 LASSERT(oa->o_gr >= FILTER_GROUP_FIRST_MDS);
420 rc = obd_create(mds->mds_dt_exp, oa, &lsm, &oti);
425 CDEBUG(level, "error creating objects for "
426 "inode %lu: rc = %d\n",
429 CERROR("obd_create returned invalid "
436 rc = obd_iocontrol(OBD_IOC_LOV_SETEA, mds->mds_dt_exp,
437 0, &lsm, rec->ur_eadata);
441 lsm->lsm_object_id = oa->o_id;
442 lsm->lsm_object_gr = oa->o_gr;
445 oa->o_size = inode->i_size;
446 obdo_from_inode(oa, inode, OBD_MD_FLTYPE|OBD_MD_FLATIME|
447 OBD_MD_FLMTIME| OBD_MD_FLCTIME| OBD_MD_FLSIZE);
448 rc = obd_setattr(mds->mds_dt_exp, oa, lsm, &oti);
450 CERROR("error setting attrs for inode %lu: rc %d\n",
453 CERROR("obd_setattr returned bad rc %d\n", rc);
460 body->valid |= OBD_MD_FLBLKSZ | OBD_MD_FLEASIZE;
461 obdo_refresh_inode(inode, oa, OBD_MD_FLBLKSZ);
463 LASSERT(lsm && lsm->lsm_object_id);
465 rc = obd_packmd(mds->mds_dt_exp, &lmm, lsm);
466 if (!id_ino(rec->ur_id2))
467 obd_free_memmd(mds->mds_dt_exp, &lsm);
470 body->eadatasize = rc;
473 *handle = fsfilt_start(obd, inode, FSFILT_OP_CREATE, NULL);
474 if (IS_ERR(*handle)) {
475 rc = PTR_ERR(*handle);
480 rc = fsfilt_set_md(obd, inode, *handle, lmm,
483 lmm_buf = lustre_msg_buf(req->rq_repmsg, offset, 0);
484 lmm_bufsize = req->rq_repmsg->buflens[offset];
486 LASSERT(lmm_bufsize >= lmm_size);
488 memcpy(lmm_buf, lmm, lmm_size);
489 obd_free_diskmd(mds->mds_dt_exp, &lmm);
491 oti_free_cookies(&oti);
495 OBD_FREE(*ids, mds->mds_dt_desc.ld_tgt_count * sizeof(**ids));
499 obd_free_memmd(mds->mds_dt_exp, &lsm);
503 static void reconstruct_open(struct mds_update_record *rec, int offset,
504 struct ptlrpc_request *req,
505 struct lustre_handle *child_lockh)
507 struct mds_export_data *med = &req->rq_export->exp_mds_data;
508 struct mds_client_data *mcd = med->med_mcd;
509 struct mds_obd *mds = mds_req2mds(req);
510 struct mds_file_data *mfd;
511 struct obd_device *obd = req->rq_export->exp_obd;
512 struct dentry *parent, *dchild;
513 struct ldlm_reply *rep;
514 struct mds_body *body;
520 LASSERT(offset == 3); /* only called via intent */
521 rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*rep));
522 body = lustre_msg_buf(req->rq_repmsg, 1, sizeof (*body));
524 /* copy rc, transno and disp; steal locks */
525 mds_req_from_mcd(req, mcd);
526 intent_set_disposition(rep, mcd->mcd_last_data);
528 /* Only replay if create or open actually happened. */
529 if (!intent_disposition(rep, DISP_OPEN_CREATE | DISP_OPEN_OPEN) ) {
531 return; /* error looking up parent or child */
534 parent = mds_id2dentry(obd, rec->ur_id1, NULL);
535 LASSERTF(!IS_ERR(parent), "lid "DLID4" rc %ld\n",
536 OLID4(rec->ur_id1), PTR_ERR(parent));
538 dchild = ll_lookup_one_len(rec->ur_name, parent,
539 rec->ur_namelen - 1);
540 LASSERTF(!IS_ERR(dchild), "parent "DLID4" child %s rc %ld\n",
541 OLID4(rec->ur_id1), rec->ur_name, PTR_ERR(dchild));
543 if (!dchild->d_inode)
544 GOTO(out_dput, 0); /* child not present to open */
546 /* At this point, we know we have a child. We'll send
547 * it back _unless_ it not created and open failed. */
548 if (intent_disposition(rep, DISP_OPEN_OPEN) &&
549 !intent_disposition(rep, DISP_OPEN_CREATE) &&
553 /* get lock (write for O_CREAT, read otherwise) */
554 mds_pack_inode2body(obd, body, dchild->d_inode, 1);
555 if (S_ISREG(dchild->d_inode->i_mode)) {
556 rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
557 dchild->d_inode, 1, 0);
560 LASSERT(rc == req->rq_status);
562 /* If we have LOV EA data, the OST holds size, mtime */
563 if (!(body->valid & OBD_MD_FLEASIZE))
564 body->valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
565 OBD_MD_FLATIME | OBD_MD_FLMTIME);
568 /* If we have -EEXIST as the status, and we were asked to create
569 * exclusively, we can tell we failed because the file already existed.
571 if (req->rq_status == -EEXIST &&
572 ((rec->ur_flags & (MDS_OPEN_CREAT | MDS_OPEN_EXCL)) ==
573 (MDS_OPEN_CREAT | MDS_OPEN_EXCL))) {
577 /* If we didn't get as far as trying to open, then some locking thing
578 * probably went wrong, and we'll just bail here.
580 if (!intent_disposition(rep, DISP_OPEN_OPEN))
583 /* If we failed, then we must have failed opening, so don't look for
584 * file descriptor or anything, just give the client the bad news.
590 list_for_each(t, &med->med_open_head) {
591 mfd = list_entry(t, struct mds_file_data, mfd_list);
592 if (mfd->mfd_xid == req->rq_xid)
597 /* #warning "XXX fixme" bug 2991 */
598 /* Here it used to LASSERT(mfd) if exp_outstanding_reply != NULL.
599 * Now that exp_outstanding_reply is a list, it's just using mfd != NULL
600 * to detect a re-open */
602 mntget(mds->mds_vfsmnt);
603 CERROR("Re-opened file \n");
604 mfd = mds_dentry_open(dchild, mds->mds_vfsmnt,
605 rec->ur_flags & ~MDS_OPEN_TRUNC, req);
607 CERROR("mds: out of memory\n");
608 GOTO(out_dput, req->rq_status = -ENOMEM);
612 body->handle.cookie = mfd->mfd_handle.h_cookie;
613 CDEBUG(D_INODE, "resend mfd %p, cookie "LPX64"\n", mfd,
614 mfd->mfd_handle.h_cookie);
624 /* do NOT or the MAY_*'s, you'll get the weakest */
625 static int accmode(int flags)
629 if (flags & FMODE_READ)
631 if (flags & (FMODE_WRITE|MDS_OPEN_TRUNC))
633 if (flags & FMODE_EXEC)
638 /* Handles object creation, actual opening, and I/O epoch */
639 static int mds_finish_open(struct ptlrpc_request *req, struct dentry *dchild,
640 struct mds_body *body, int flags, void **handle,
641 struct mds_update_record *rec, struct ldlm_reply *rep)
643 struct mds_obd *mds = mds_req2mds(req);
644 struct obd_device *obd = req->rq_export->exp_obd;
645 struct mds_file_data *mfd = NULL;
646 obd_id *ids = NULL; /* object IDs created */
651 /* atomically create objects if necessary */
652 down(&dchild->d_inode->i_sem);
653 mode = dchild->d_inode->i_mode;
654 if ((S_ISREG(mode) && !(body->valid & OBD_MD_FLEASIZE)) ||
655 (S_ISDIR(mode) && !(body->valid & OBD_MD_FLDIREA))) {
656 rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
657 dchild->d_inode, 0, 0);
659 up(&dchild->d_inode->i_sem);
664 /* no EA: create objects */
665 if ((body->valid & OBD_MD_FLEASIZE) &&
666 (rec->ur_flags & MDS_OPEN_HAS_EA)) {
667 up(&dchild->d_inode->i_sem);
670 if (!(body->valid & OBD_MD_FLEASIZE)) {
671 /* no EA: create objects */
672 rc = mds_create_objects(req, 2, rec, mds, obd,
673 dchild, handle, &ids);
675 CERROR("mds_create_objects: rc = %d\n", rc);
676 up(&dchild->d_inode->i_sem);
680 if (S_ISREG(dchild->d_inode->i_mode) &&
681 (body->valid & OBD_MD_FLEASIZE)) {
682 rc = mds_revalidate_lov_ea(obd, dchild->d_inode,
685 rc = mds_pack_md(obd, req->rq_repmsg, 2, body,
686 dchild->d_inode, 0, 0);
688 up(&dchild->d_inode->i_sem);
693 rc = mds_pack_acl(obd, req->rq_repmsg, 3, body, dchild->d_inode);
695 CERROR("mds_pack_acl: rc = %d\n", rc);
696 up(&dchild->d_inode->i_sem);
700 /* If the inode has no EA data, then MDSs hold size, mtime */
701 if (S_ISREG(dchild->d_inode->i_mode) &&
702 !(body->valid & OBD_MD_FLEASIZE)) {
703 body->valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
704 OBD_MD_FLATIME | OBD_MD_FLMTIME);
706 up(&dchild->d_inode->i_sem);
708 intent_set_disposition(rep, DISP_OPEN_OPEN);
709 mfd = mds_dentry_open(dchild, mds->mds_vfsmnt, flags, req);
711 RETURN(PTR_ERR(mfd));
713 CDEBUG(D_INODE, "mfd %p, cookie "LPX64"\n", mfd,
714 mfd->mfd_handle.h_cookie);
716 mds_dt_update_objids(obd, ids);
717 OBD_FREE(ids, sizeof(*ids) * mds->mds_dt_desc.ld_tgt_count);
720 // mds_mfd_destroy(mfd);
724 static int mds_open_by_id(struct ptlrpc_request *req,
725 struct lustre_id *id,
726 struct mds_body *body, int flags,
727 struct mds_update_record *rec,
728 struct ldlm_reply *rep)
730 struct mds_obd *mds = mds_req2mds(req);
731 struct inode *pending_dir = mds->mds_pending_dir->d_inode;
732 struct dentry *dchild;
733 char idname[LL_ID_NAMELEN];
738 down(&pending_dir->i_sem);
739 idlen = ll_id2str(idname, id_ino(id), id_gen(id));
740 dchild = lookup_one_len(idname, mds->mds_pending_dir,
742 if (IS_ERR(dchild)) {
743 up(&pending_dir->i_sem);
744 rc = PTR_ERR(dchild);
745 CERROR("error looking up %s in PENDING: rc = %d\n",
750 if (dchild->d_inode != NULL) {
751 mds_inode_set_orphan(dchild->d_inode);
752 mds_pack_inode2body(req2obd(req), body,
755 intent_set_disposition(rep, DISP_LOOKUP_EXECD);
756 intent_set_disposition(rep, DISP_LOOKUP_POS);
757 CWARN("Orphan %s found and opened in PENDING directory\n",
764 * we didn't find it in PENDING so it isn't an orphan. See if it was a
765 * regular inode that was previously created.
767 dchild = mds_id2dentry(req2obd(req), id, NULL);
769 RETURN(PTR_ERR(dchild));
771 mds_pack_inode2body(req2obd(req), body,
774 intent_set_disposition(rep, DISP_LOOKUP_EXECD);
775 intent_set_disposition(rep, DISP_LOOKUP_POS);
778 rc = mds_finish_open(req, dchild, body, flags, &handle, rec, rep);
779 rc = mds_finish_transno(mds, dchild ? dchild->d_inode : NULL, handle,
780 req, rc, rep ? rep->lock_policy_res1 : 0);
781 /* XXX what do we do here if mds_finish_transno itself failed? */
786 int mds_pin(struct ptlrpc_request *req, int offset)
788 struct obd_device *obd = req->rq_export->exp_obd;
789 struct mds_body *request_body, *reply_body;
790 struct lvfs_run_ctxt saved;
791 int rc, size = sizeof(*reply_body);
794 request_body = lustre_msg_buf(req->rq_reqmsg, offset,
795 sizeof(*request_body));
797 rc = lustre_pack_reply(req, 1, &size, NULL);
800 reply_body = lustre_msg_buf(req->rq_repmsg, 0, sizeof(*reply_body));
802 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
803 rc = mds_open_by_id(req, &request_body->id1, reply_body,
804 request_body->flags, NULL, NULL);
805 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
811 * get a lock on the ino to sync with creation WRT inode reuse (bug 2029). If
812 * child_lockh is NULL we just get the lock as a barrier to wait for other
813 * holders of this lock, and drop it right away again.
815 int mds_lock_new_child(struct obd_device *obd, struct inode *inode,
816 struct lustre_handle *child_lockh)
818 struct ldlm_res_id child_res_id = { .name = { inode->i_ino, 0, 1, 0 } };
819 struct lustre_handle lockh;
824 if (child_lockh == NULL)
825 child_lockh = &lockh;
827 rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace, child_res_id,
828 LDLM_PLAIN, NULL, LCK_EX, &lock_flags,
829 mds_blocking_ast, ldlm_completion_ast, NULL,
830 NULL, NULL, 0, NULL, child_lockh);
832 CERROR("ldlm_cli_enqueue: %d\n", rc);
833 else if (child_lockh == &lockh)
834 ldlm_lock_decref(child_lockh, LCK_EX);
839 int mds_open(struct mds_update_record *rec, int offset,
840 struct ptlrpc_request *req, struct lustre_handle *child_lockh)
842 /* XXX ALLOCATE _something_ - 464 bytes on stack here */
843 struct obd_device *obd = req->rq_export->exp_obd;
844 struct mds_export_data *med = &req->rq_export->u.eu_mds_data;
845 struct mds_obd *mds = mds_req2mds(req);
846 struct ldlm_reply *rep = NULL;
847 struct mds_body *body = NULL;
848 struct dentry *dchild = NULL, *dparent = NULL;
849 struct lustre_handle parent_lockh[2] = {{0}, {0}};
850 int rc = 0, cleanup_phase = 0, acc_mode, created = 0;
851 int parent_mode = LCK_PR;
853 struct dentry_params dp;
854 struct mea *mea = NULL;
855 int mea_size, update_mode;
856 int child_mode = LCK_PR;
857 /* Always returning LOOKUP lock if open succesful to guard
859 ldlm_policy_data_t policy = {.l_inodebits={MDS_INODELOCK_LOOKUP}};
860 struct ldlm_res_id child_res_id = { .name = {0}};
864 DEBUG_REQ(D_INODE, req, "parent "DLID4" name %*s mode %o",
865 OLID4(rec->ur_id1), rec->ur_namelen - 1, rec->ur_name,
868 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_PAUSE_OPEN | OBD_FAIL_ONCE,
869 (obd_timeout + 1) / 4);
871 if (offset == 3) { /* intent */
872 rep = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*rep));
873 body = lustre_msg_buf(req->rq_repmsg, 1, sizeof (*body));
874 } else if (offset == 1) { /* non-intent reint */
875 body = lustre_msg_buf(req->rq_repmsg, 0, sizeof (*body));
881 MDS_CHECK_RESENT(req, reconstruct_open(rec, offset, req, child_lockh));
884 * Step 0: If we are passed a id, then we assume the client already
885 * opened this file and is only replaying the RPC, so we open the inode
886 * by fid (at some large expense in security).
888 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
889 CDEBUG(D_HA, "open obj "DLID4" name %*s mode %o\n",
890 OLID4(rec->ur_id2), rec->ur_namelen - 1,
891 rec->ur_name, rec->ur_mode);
893 LASSERT(id_ino(rec->ur_id2));
895 rc = mds_open_by_id(req, rec->ur_id2, body, rec->ur_flags,
898 mds_body_do_reverse_map(med, body);
902 /* We didn't find the correct inode on disk either, so we
903 * need to re-create it via a regular replay. */
904 LASSERT(rec->ur_flags & MDS_OPEN_CREAT);
906 LASSERT(!id_ino(rec->ur_id2));
909 LASSERT(offset == 3); /* If we got here, we must be called via intent */
911 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_PACK)) {
912 CERROR("test case OBD_FAIL_MDS_OPEN_PACK\n");
916 acc_mode = accmode(rec->ur_flags);
918 /* Step 1: Find and lock the parent */
919 if (rec->ur_flags & MDS_OPEN_CREAT) {
920 /* XXX Well, in fact we only need this lock mode change if
921 in addition to O_CREAT, the file does not exist.
922 But we do not know if it exists or not yet */
923 parent_mode = LCK_PW;
926 if (rec->ur_namelen == 1) {
927 /* client (LMV) wants to open the file by id */
928 CDEBUG(D_OTHER, "OPEN by id "DLID4"\n", OLID4(rec->ur_id1));
929 dchild = mds_id2dentry(obd, rec->ur_id1, NULL);
930 if (IS_ERR(dchild)) {
931 rc = PTR_ERR(dparent);
932 CERROR("child lookup by an id error %d\n", rc);
938 dparent = mds_id2locked_dentry(obd, rec->ur_id1, NULL, parent_mode,
939 parent_lockh, &update_mode, rec->ur_name,
940 rec->ur_namelen - 1, MDS_INODELOCK_UPDATE);
941 if (IS_ERR(dparent)) {
942 rc = PTR_ERR(dparent);
944 CERROR("parent lookup for "DLID4" failed, error %d\n",
945 OLID4(rec->ur_id1), rc);
947 /* Just cannot find parent - make it look like
948 usual negative lookup to avoid extra MDS RPC */
949 intent_set_disposition(rep, DISP_LOOKUP_EXECD);
950 intent_set_disposition(rep, DISP_LOOKUP_NEG);
954 LASSERT(dparent->d_inode != NULL);
956 cleanup_phase = 1; /* parent dentry and lock */
958 /* try to retrieve MEA data for this dir */
959 rc = mds_md_get_attr(obd, dparent->d_inode, &mea, &mea_size);
965 * dir is already splitted, check is requested filename should *
966 * live at this MDS or at another one.
969 i = mea_name2idx(mea, rec->ur_name, rec->ur_namelen - 1);
970 if (mea->mea_master != id_group(&mea->mea_ids[i])) {
972 "%s: inapropriate MDS(%d) for %lu/%u:%s."
973 " should be %lu(%d)\n", obd->obd_name,
974 mea->mea_master, dparent->d_inode->i_ino,
975 dparent->d_inode->i_generation, rec->ur_name,
976 (unsigned long)id_group(&mea->mea_ids[i]), i);
977 GOTO(cleanup, rc = -ERESTART);
981 /* Step 2: Lookup the child */
982 dchild = ll_lookup_one_len(rec->ur_name, dparent, rec->ur_namelen - 1);
983 if (IS_ERR(dchild)) {
984 rc = PTR_ERR(dchild);
985 dchild = NULL; /* don't confuse mds_finish_transno() below */
990 cleanup_phase = 2; /* child dentry */
992 intent_set_disposition(rep, DISP_LOOKUP_EXECD);
994 if (dchild->d_flags & DCACHE_CROSS_REF) {
995 struct ldlm_res_id res_id = { . name = {0} };
996 ldlm_policy_data_t policy;
999 mds_pack_dentry2body(obd, body, dchild, 1);
1000 intent_set_disposition(rep, DISP_LOOKUP_POS);
1002 CDEBUG(D_OTHER, "cross reference: "DLID4"\n",
1005 res_id.name[0] = dchild->d_fid;
1006 res_id.name[1] = dchild->d_mdsnum;
1008 policy.l_inodebits.bits = MDS_INODELOCK_LOOKUP;
1009 rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace,
1010 res_id, LDLM_IBITS, &policy,
1011 LCK_PR, &flags, mds_blocking_ast,
1012 ldlm_completion_ast, NULL, NULL,
1013 NULL, 0, NULL, child_lockh);
1015 if (parent_lockh[1].cookie != 0)
1016 ldlm_lock_decref(parent_lockh + 1, update_mode);
1018 ldlm_lock_decref(parent_lockh, parent_mode);
1020 OBD_FREE(mea, mea_size);
1026 if (dchild->d_inode)
1027 intent_set_disposition(rep, DISP_LOOKUP_POS);
1029 intent_set_disposition(rep, DISP_LOOKUP_NEG);
1031 /* Step 3: If the child was negative, and we're supposed to, create it.*/
1032 if (dchild->d_inode == NULL) {
1035 struct inode *inode;
1037 ino = (unsigned long)id_ino(rec->ur_id2);
1039 rc = mds_try_to_split_dir(obd, dparent, &mea, 0,
1042 CDEBUG(D_OTHER, "%s: splitted %lu/%u - %d\n",
1043 obd->obd_name, dparent->d_inode->i_ino,
1044 dparent->d_inode->i_generation, rc);
1047 /* dir got splitted */
1048 GOTO(cleanup, rc = -ERESTART);
1049 } else if (rc < 0) {
1050 /* error happened during spitting */
1054 if (!(rec->ur_flags & MDS_OPEN_CREAT)) {
1056 * dentry is negative and we weren't supposed to create
1057 * object, get out of here.
1059 GOTO(cleanup, rc = -ENOENT);
1062 intent_set_disposition(rep, DISP_OPEN_CREATE);
1063 handle = fsfilt_start(obd, dparent->d_inode, FSFILT_OP_CREATE,
1065 if (IS_ERR(handle)) {
1066 rc = PTR_ERR(handle);
1070 dchild->d_fsdata = (void *) &dp;
1074 rc = ll_vfs_create(dparent->d_inode, dchild, rec->ur_mode, NULL);
1075 if (dchild->d_fsdata == (void *)(unsigned long)ino)
1076 dchild->d_fsdata = NULL;
1079 CDEBUG(D_INODE, "error during create: %d\n", rc);
1082 inode = dchild->d_inode;
1084 LASSERT(ino == inode->i_ino);
1086 /* written as part of setattr */
1087 inode->i_generation = id_gen(rec->ur_id2);
1088 CDEBUG(D_HA, "recreated ino %lu with gen %u\n",
1089 inode->i_ino, inode->i_generation);
1093 LTIME_S(iattr.ia_atime) = rec->ur_time;
1094 LTIME_S(iattr.ia_ctime) = rec->ur_time;
1095 LTIME_S(iattr.ia_mtime) = rec->ur_time;
1097 iattr.ia_uid = rec->ur_fsuid;
1098 if (dparent->d_inode->i_mode & S_ISGID)
1099 iattr.ia_gid = dparent->d_inode->i_gid;
1101 iattr.ia_gid = rec->ur_fsgid;
1103 iattr.ia_valid = ATTR_UID | ATTR_GID | ATTR_ATIME |
1104 ATTR_MTIME | ATTR_CTIME;
1106 rc = fsfilt_setattr(obd, dchild, handle, &iattr, 0);
1108 CERROR("error on child setattr: rc = %d\n", rc);
1110 iattr.ia_valid = ATTR_MTIME | ATTR_CTIME;
1112 rc = fsfilt_setattr(obd, dparent, handle, &iattr, 0);
1114 CERROR("error on parent setattr: rc = %d\n", rc);
1116 MD_COUNTER_INCREMENT(obd, create);
1119 down(&dchild->d_inode->i_sem);
1121 rc = mds_update_inode_sid(obd, dchild->d_inode,
1122 handle, rec->ur_id2);
1124 CERROR("mds_update_inode_sid() failed, "
1127 id_assign_fid(&body->id1, rec->ur_id2);
1130 * make sure, that fid is up-to-date.
1132 mds_set_last_fid(obd, id_fid(rec->ur_id2));
1134 rc = mds_alloc_inode_sid(obd, dchild->d_inode,
1135 handle, &body->id1);
1137 CERROR("mds_alloc_inode_sid() failed, "
1141 up(&dchild->d_inode->i_sem);
1143 if (!(rec->ur_flags & O_EXCL)) { /* bug 3313 */
1144 rc = fsfilt_commit(obd, dchild->d_inode->i_sb,
1145 dchild->d_inode, handle,
1146 req->rq_export->exp_sync);
1150 acc_mode = 0; /* Don't check for permissions */
1152 mds_pack_inode2body(obd, body, dchild->d_inode, 1);
1154 LASSERTF(!mds_inode_is_orphan(dchild->d_inode),
1155 "dchild %.*s (%p) inode %p\n", dchild->d_name.len,
1156 dchild->d_name.name, dchild, dchild->d_inode);
1158 if (S_ISREG(dchild->d_inode->i_mode)) {
1159 /* Check permissions etc */
1160 rc = ll_permission(dchild->d_inode, acc_mode, NULL);
1164 /* Can't write to a read-only file */
1165 if (IS_RDONLY(dchild->d_inode) && (acc_mode & MAY_WRITE) != 0)
1166 GOTO(cleanup, rc = -EPERM);
1168 /* An append-only file must be opened in append mode for
1170 if (IS_APPEND(dchild->d_inode) && (acc_mode & MAY_WRITE) != 0 &&
1171 ((rec->ur_flags & MDS_OPEN_APPEND) == 0 ||
1172 (rec->ur_flags & MDS_OPEN_TRUNC) != 0))
1173 GOTO(cleanup, rc = -EPERM);
1176 if (!created && (rec->ur_flags & MDS_OPEN_CREAT) &&
1177 (rec->ur_flags & MDS_OPEN_EXCL)) {
1178 /* File already exists, we didn't just create it, and we
1179 * were passed O_EXCL; err-or. */
1180 GOTO(cleanup, rc = -EEXIST); // returns a lock to the client
1183 if (S_ISDIR(dchild->d_inode->i_mode)) {
1184 if (rec->ur_flags & MDS_OPEN_CREAT ||
1185 rec->ur_flags & FMODE_WRITE) {
1186 /* we are trying to create or write a exist dir */
1187 GOTO(cleanup, rc = -EISDIR);
1189 if (ll_permission(dchild->d_inode, acc_mode, NULL))
1190 GOTO(cleanup, rc = -EACCES);
1193 * here was checking for possible GNS mount points to skip their
1194 * open. I removed it as its detection based only on SUID bit is
1195 * not reliable. Opening such a dirs should not cause any
1196 * problems, at least tests show that. --umka
1200 /* if we are following a symlink, don't open */
1201 if (S_ISLNK(dchild->d_inode->i_mode))
1202 GOTO(cleanup_no_trans, rc = 0);
1204 if ((rec->ur_flags & MDS_OPEN_DIRECTORY) &&
1205 !S_ISDIR(dchild->d_inode->i_mode))
1206 GOTO(cleanup, rc = -ENOTDIR);
1208 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_CREATE)) {
1209 obd_fail_loc = OBD_FAIL_LDLM_REPLY | OBD_FAIL_ONCE;
1210 GOTO(cleanup, rc = -EAGAIN);
1213 /* Obtain OPEN lock as well */
1214 policy.l_inodebits.bits |= MDS_INODELOCK_OPEN;
1216 /* We cannot use acc_mode here, because it is zeroed in case of
1217 creating a file, so we get wrong lockmode */
1218 if (accmode(rec->ur_flags) & MAY_WRITE)
1219 child_mode = LCK_CW;
1220 else if (accmode(rec->ur_flags) & MAY_EXEC)
1221 child_mode = LCK_PR;
1223 child_mode = LCK_CR;
1225 if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY)) {
1226 struct lustre_id sid;
1228 down(&dchild->d_inode->i_sem);
1229 rc = mds_read_inode_sid(obd, dchild->d_inode, &sid);
1230 up(&dchild->d_inode->i_sem);
1232 CERROR("Can't read inode self id, "
1233 "inode %lu, rc %d\n",
1234 dchild->d_inode->i_ino, rc);
1238 /* In case of replay we do not get a lock assuming that the
1239 caller has it already */
1240 child_res_id.name[0] = id_fid(&sid);
1241 child_res_id.name[1] = id_group(&sid);
1243 rc = ldlm_cli_enqueue(NULL, NULL, obd->obd_namespace,
1244 child_res_id, LDLM_IBITS, &policy,
1245 child_mode, &lock_flags,
1246 mds_blocking_ast, ldlm_completion_ast,
1247 NULL, NULL, NULL, 0, NULL, child_lockh);
1254 /* Step 5: mds_open it */
1255 rc = mds_finish_open(req, dchild, body, rec->ur_flags, &handle,
1260 rc = mds_finish_transno(mds, dchild ? dchild->d_inode : NULL, handle,
1261 req, rc, rep ? rep->lock_policy_res1 : 0);
1264 switch (cleanup_phase) {
1267 ldlm_lock_decref(child_lockh, child_mode);
1268 child_lockh->cookie = 0;
1271 if (rc && created) {
1272 int err = vfs_unlink(dparent->d_inode, dchild);
1274 CERROR("unlink(%.*s) in error path: %d\n",
1275 dchild->d_name.len, dchild->d_name.name,
1278 } else if (created) {
1279 mds_lock_new_child(obd, dchild->d_inode, NULL);
1283 if (dparent == NULL)
1288 if (parent_lockh[1].cookie != 0)
1289 ldlm_lock_decref(parent_lockh + 1, update_mode);
1292 ldlm_lock_decref(parent_lockh, parent_mode);
1294 ptlrpc_save_lock (req, parent_lockh, parent_mode);
1297 OBD_FREE(mea, mea_size);
1299 atomic_inc(&mds->mds_open_count);
1301 mds_body_do_reverse_map(med, body);
1304 * If we have not taken the "open" lock, we may not return 0 here,
1305 * because caller expects 0 to mean "lock is taken", and it needs
1306 * nonzero return here for caller to return EDLM_LOCK_ABORTED to
1307 * client. Later caller should rewrite the return value back to zero
1308 * if it to be used any further.
1310 if ((cleanup_phase != 3) && !rc)
1316 /* Close a "file descriptor" and possibly unlink an orphan from the
1317 * PENDING directory. Caller must hold child->i_sem, this drops it.
1319 * If we are being called from mds_disconnect() because the client has
1320 * disappeared, then req == NULL and we do not update last_rcvd because
1321 * there is nothing that could be recovered by the client at this stage
1322 * (it will not even _have_ an entry in last_rcvd anymore).
1324 * Returns EAGAIN if the client needs to get more data and re-close. */
1325 int mds_mfd_close(struct ptlrpc_request *req, int offset,
1326 struct obd_device *obd, struct mds_file_data *mfd,
1329 struct inode *inode = mfd->mfd_dentry->d_inode;
1330 char idname[LL_ID_NAMELEN];
1331 int last_orphan, idlen, rc = 0, cleanup_phase = 0;
1332 struct dentry *pending_child = NULL;
1333 struct mds_obd *mds = &obd->u.mds;
1334 struct inode *pending_dir = mds->mds_pending_dir->d_inode;
1335 void *handle = NULL;
1336 struct mds_body *request_body = NULL, *reply_body = NULL;
1337 struct dentry_params dp;
1338 struct iattr iattr = { 0 };
1339 struct llog_create_locks *lcl = NULL;
1342 if (req && req->rq_reqmsg != NULL)
1343 request_body = lustre_msg_buf(req->rq_reqmsg, offset,
1344 sizeof(*request_body));
1345 if (req && req->rq_repmsg != NULL)
1346 reply_body = lustre_msg_buf(req->rq_repmsg, 0,
1347 sizeof(*reply_body));
1349 idlen = ll_id2str(idname, inode->i_ino, inode->i_generation);
1350 CDEBUG(D_INODE, "inode %p ino %s nlink %d orphan %d\n", inode,
1351 idname, inode->i_nlink, mds_orphan_open_count(inode));
1353 last_orphan = mds_orphan_open_dec_test(inode) &&
1354 mds_inode_is_orphan(inode);
1355 UP_WRITE_I_ALLOC_SEM(inode);
1357 /* this is half of the actual "close" */
1358 if (mfd->mfd_mode & FMODE_WRITE) {
1359 rc = mds_put_write_access(mds, inode, request_body,
1360 last_orphan && unlink_orphan);
1361 } else if (mfd->mfd_mode & FMODE_EXEC) {
1362 mds_allow_write_access(inode);
1365 if (last_orphan && unlink_orphan) {
1366 struct lov_mds_md *lmm = NULL;
1367 int stripe_count = 0;
1368 LASSERT(rc == 0); /* mds_put_write_access must have succeeded */
1370 if (obd->obd_recovering) {
1371 CDEBUG(D_HA, "not remove orphan %s until recovery"
1372 " is over\n", idname);
1376 CDEBUG(D_HA, "destroying orphan object %s\n", idname);
1378 if ((S_ISREG(inode->i_mode) && inode->i_nlink != 1) ||
1379 (S_ISDIR(inode->i_mode) && inode->i_nlink != 2))
1380 CERROR("found \"orphan\" %s %s with link count %d\n",
1381 S_ISREG(inode->i_mode) ? "file" : "dir",
1382 idname, inode->i_nlink);
1384 * sadly, there is no easy way to save pending_child from
1385 * mds_reint_unlink() into mfd, so we need to re-lookup, but
1386 * normally it will still be in the dcache.
1388 down(&pending_dir->i_sem);
1389 cleanup_phase = 1; /* up(i_sem) when finished */
1390 pending_child = lookup_one_len(idname, mds->mds_pending_dir,
1392 if (IS_ERR(pending_child))
1393 GOTO(cleanup, rc = PTR_ERR(pending_child));
1394 LASSERT(pending_child->d_inode != NULL);
1396 cleanup_phase = 2; /* dput(pending_child) when finished */
1397 if (S_ISDIR(pending_child->d_inode->i_mode)) {
1398 rc = vfs_rmdir(pending_dir, pending_child);
1400 CERROR("error unlinking orphan dir %s: rc %d\n",
1405 if (req != NULL && req->rq_repmsg != NULL) {
1406 lmm = lustre_msg_buf(req->rq_repmsg, 1, 0);
1407 stripe_count = le32_to_cpu(lmm->lmm_stripe_count);
1410 handle = fsfilt_start_log(obd, pending_dir, FSFILT_OP_UNLINK,
1411 NULL, stripe_count);
1412 if (IS_ERR(handle)) {
1413 rc = PTR_ERR(handle);
1418 pending_child->d_fsdata = (void *) &dp;
1421 rc = vfs_unlink(pending_dir, pending_child);
1423 CERROR("error unlinking orphan %s: rc %d\n",
1426 if (req != NULL && req->rq_repmsg != NULL &&
1427 (reply_body->valid & OBD_MD_FLEASIZE) &&
1428 mds_log_op_unlink(obd, pending_child->d_inode,
1429 lmm, req->rq_repmsg->buflens[1],
1430 lustre_msg_buf(req->rq_repmsg, 2, 0),
1431 req->rq_repmsg->buflens[2], &lcl) > 0) {
1432 reply_body->valid |= OBD_MD_FLCOOKIE;
1435 goto out; /* Don't bother updating attrs on unlinked inode */
1439 if (request_body != NULL && mfd->mfd_mode & FMODE_WRITE && rc == 0) {
1440 /* Update the on-disk attributes if this was the last write
1441 * close, and all information was provided (i.e., rc == 0)
1443 * XXX this should probably be abstracted with mds_reint_setattr
1446 if (request_body->valid & OBD_MD_FLMTIME &&
1447 LTIME_S(request_body->mtime) > LTIME_S(inode->i_mtime)) {
1448 LTIME_S(iattr.ia_mtime) = LTIME_S(request_body->mtime);
1449 iattr.ia_valid |= ATTR_MTIME;
1451 if (request_body->valid & OBD_MD_FLCTIME &&
1452 LTIME_S(request_body->ctime) > LTIME_S(inode->i_ctime)) {
1453 LTIME_S(iattr.ia_ctime) = LTIME_S(request_body->ctime);
1454 iattr.ia_valid |= ATTR_CTIME;
1457 /* XXX can't set block count with fsfilt_setattr (!) */
1458 if (request_body->valid & OBD_MD_FLSIZE) {
1459 iattr.ia_valid |= ATTR_SIZE;
1460 iattr.ia_size = request_body->size;
1462 /* if (request_body->valid & OBD_MD_FLBLOCKS) {
1463 iattr.ia_valid |= ATTR_BLOCKS;
1464 iattr.ia_blocks = request_body->blocks
1469 if (request_body != NULL && request_body->valid & OBD_MD_FLATIME) {
1470 /* Only start a transaction to write out only the atime if
1471 * it is more out-of-date than the specified limit. If we
1472 * are already going to write out the atime then do it anyway.
1474 if ((request_body->atime >
1475 LTIME_S(inode->i_atime) + MAX_ATIME_DIFF) ||
1476 (iattr.ia_valid != 0 &&
1477 request_body->atime > LTIME_S(inode->i_atime))) {
1478 LTIME_S(iattr.ia_atime) = request_body->atime;
1479 iattr.ia_valid |= ATTR_ATIME;
1483 if (iattr.ia_valid != 0) {
1484 handle = fsfilt_start(obd, inode, FSFILT_OP_SETATTR, NULL);
1486 GOTO(cleanup, rc = PTR_ERR(handle));
1487 rc = fsfilt_setattr(obd, mfd->mfd_dentry, handle, &iattr, 0);
1489 CERROR("error in setattr(%s): rc %d\n", idname, rc);
1492 /* If other clients have this file open for write, rc will be > 0 */
1495 l_dput(mfd->mfd_dentry);
1496 mds_mfd_destroy(mfd);
1499 atomic_dec(&mds->mds_open_count);
1500 if (req != NULL && reply_body != NULL) {
1501 rc = mds_finish_transno(mds, pending_dir, handle, req, rc, 0);
1502 } else if (handle) {
1503 int err, force_sync = 0;
1505 if (req && req->rq_export)
1506 force_sync = req->rq_export->exp_sync;
1508 err = fsfilt_commit(obd, mds->mds_sb, pending_dir, handle,
1511 CERROR("error committing close: %d\n", err);
1517 switch (cleanup_phase) {
1520 ptlrpc_save_llog_lock(req, lcl);
1521 dput(pending_child);
1523 up(&pending_dir->i_sem);
1528 int mds_close(struct ptlrpc_request *req, int offset)
1530 struct mds_export_data *med = &req->rq_export->exp_mds_data;
1531 struct obd_device *obd = req->rq_export->exp_obd;
1532 struct mds_body *body;
1533 struct mds_file_data *mfd;
1534 struct lvfs_run_ctxt saved;
1535 struct inode *inode;
1536 int rc, repsize[3] = {sizeof(struct mds_body),
1537 obd->u.mds.mds_max_mdsize,
1538 obd->u.mds.mds_max_cookiesize};
1540 MD_COUNTER_INCREMENT(obd, close);
1542 rc = lustre_pack_reply(req, 3, repsize, NULL);
1544 CERROR("lustre_pack_reply: rc = %d\n", rc);
1545 req->rq_status = rc;
1547 MDS_CHECK_RESENT(req, mds_reconstruct_generic(req));
1550 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
1551 DEBUG_REQ(D_HA, req, "close replay\n");
1552 memcpy(lustre_msg_buf(req->rq_repmsg, 2, 0),
1553 lustre_msg_buf(req->rq_reqmsg, offset + 1, 0),
1554 req->rq_repmsg->buflens[2]);
1557 body = lustre_swab_reqbuf(req, offset, sizeof(*body),
1558 lustre_swab_mds_body);
1560 CERROR("Can't unpack body\n");
1561 req->rq_status = -EFAULT;
1565 if (body->flags & MDS_BFLAG_UNCOMMITTED_WRITES)
1566 /* do some stuff */ ;
1568 mfd = mds_handle2mfd(&body->handle);
1570 DEBUG_REQ(D_ERROR, req, "no handle for file close ino "LPD64
1571 ": cookie "LPX64, id_ino(&body->id1), body->handle.cookie);
1572 req->rq_status = -ESTALE;
1576 inode = mfd->mfd_dentry->d_inode;
1577 /* child i_alloc_sem protects orphan_dec_test && is_orphan race */
1578 DOWN_WRITE_I_ALLOC_SEM(inode); /* mds_mfd_close drops this */
1579 if (mds_inode_is_orphan(inode) && mds_orphan_open_count(inode) == 1) {
1580 struct mds_body *rep_body;
1582 rep_body = lustre_msg_buf(req->rq_repmsg, 0,
1583 sizeof (*rep_body));
1584 LASSERT(rep_body != NULL);
1586 mds_pack_inode2body(obd, rep_body, inode,
1587 (body->valid & OBD_MD_FID) ? 1 : 0);
1589 mds_pack_md(obd, req->rq_repmsg, 1, rep_body,
1590 inode, MDS_PACK_MD_LOCK, 0);
1592 spin_lock(&med->med_open_lock);
1593 list_del(&mfd->mfd_list);
1594 spin_unlock(&med->med_open_lock);
1596 push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1597 req->rq_status = mds_mfd_close(req, offset, obd, mfd, 1);
1598 pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
1600 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK)) {
1601 CERROR("test case OBD_FAIL_MDS_CLOSE_PACK\n");
1602 req->rq_status = -ENOMEM;
1611 int mds_done_writing(struct ptlrpc_request *req, int offset)
1613 struct mds_body *body;
1614 int rc, size = sizeof(struct mds_body);
1617 MDS_CHECK_RESENT(req, mds_reconstruct_generic(req));
1619 body = lustre_swab_reqbuf(req, offset, sizeof(*body),
1620 lustre_swab_mds_body);
1622 CERROR("Can't unpack body\n");
1623 req->rq_status = -EFAULT;
1627 rc = lustre_pack_reply(req, 1, &size, NULL);
1629 CERROR("lustre_pack_reply: rc = %d\n", rc);
1630 req->rq_status = rc;