1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Lustre Light Super operations
6 * Copyright (c) 2002-2004 Cluster File Systems, Inc.
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define DEBUG_SUBSYSTEM S_LLITE
30 #include <sys/types.h>
32 #include <sys/fcntl.h>
33 #include <sys/queue.h>
36 # include <sys/statvfs.h>
38 # include <sys/statfs.h>
53 #include "llite_lib.h"
61 #define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
63 static int ll_permission(struct inode *inode, int mask)
65 struct llu_inode_info *lli = llu_i2info(inode);
66 mode_t mode = lli->lli_st_mode;
68 if (current->fsuid == lli->lli_st_uid)
70 else if (in_group_p(lli->lli_st_gid))
73 if ((mode & mask & (MAY_READ|MAY_WRITE|MAY_EXEC)) == mask)
76 if ((mask & (MAY_READ|MAY_WRITE)) ||
77 (lli->lli_st_mode & S_IXUGO))
78 if (capable(CAP_DAC_OVERRIDE))
81 if (mask == MAY_READ ||
82 (S_ISDIR(lli->lli_st_mode) && !(mask & MAY_WRITE))) {
83 if (capable(CAP_DAC_READ_SEARCH))
90 static void llu_fsop_gone(struct filesys *fs)
92 struct llu_sb_info *sbi = (struct llu_sb_info *)fs->fs_private;
93 struct obd_device *obd = class_exp2obd(sbi->ll_md_exp);
94 struct lustre_cfg lcfg;
98 list_del(&sbi->ll_conn_chain);
99 obd_disconnect(sbi->ll_dt_exp, 0);
100 obd_disconnect(sbi->ll_md_exp, 0);
102 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) != NULL)
106 LCFG_INIT(lcfg, LCFG_CLEANUP, obd->obd_name);
107 err = class_process_config(&lcfg);
109 CERROR("cleanup failed: %s\n", obd->obd_name);
112 LCFG_INIT(lcfg, LCFG_DETACH, obd->obd_name);
113 err = class_process_config(&lcfg);
115 CERROR("detach failed: %s\n", obd->obd_name);
119 obd_disconnect(sbi->ll_md_exp, 0);
120 OBD_FREE(sbi, sizeof(*sbi));
124 struct inode_ops llu_inode_ops;
126 void llu_update_inode(struct inode *inode, struct mds_body *body,
127 struct lov_stripe_md *lsm)
129 struct llu_inode_info *lli = llu_i2info(inode);
131 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
133 if (lli->lli_smd == NULL) {
135 lli->lli_maxbytes = lsm->lsm_maxbytes;
136 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
137 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
139 if (memcmp(lli->lli_smd, lsm, sizeof(*lsm))) {
140 CERROR("lsm mismatch for inode %ld\n",
147 id_assign_fid(&lli->lli_id, &body->id1);
149 if ((body->valid & OBD_MD_FLID) || (body->valid & OBD_MD_FLGENER))
150 id_assign_stc(&lli->lli_id, &body->id1);
151 if (body->valid & OBD_MD_FLID)
152 lli->lli_st_ino = id_ino(&body->id1);
153 if (body->valid & OBD_MD_FLGENER)
154 lli->lli_st_generation = id_gen(&body->id1);
156 if (body->valid & OBD_MD_FLATIME)
157 LTIME_S(lli->lli_st_atime) = body->atime;
158 if (body->valid & OBD_MD_FLMTIME)
159 LTIME_S(lli->lli_st_mtime) = body->mtime;
160 if (body->valid & OBD_MD_FLCTIME)
161 LTIME_S(lli->lli_st_ctime) = body->ctime;
162 if (body->valid & OBD_MD_FLMODE)
163 lli->lli_st_mode = (lli->lli_st_mode & S_IFMT)|(body->mode & ~S_IFMT);
164 if (body->valid & OBD_MD_FLTYPE)
165 lli->lli_st_mode = (lli->lli_st_mode & ~S_IFMT)|(body->mode & S_IFMT);
166 if (body->valid & OBD_MD_FLUID)
167 lli->lli_st_uid = body->uid;
168 if (body->valid & OBD_MD_FLGID)
169 lli->lli_st_gid = body->gid;
170 if (body->valid & OBD_MD_FLFLAGS)
171 lli->lli_st_flags = body->flags;
172 if (body->valid & OBD_MD_FLNLINK)
173 lli->lli_st_nlink = body->nlink;
174 if (body->valid & OBD_MD_FLRDEV)
175 lli->lli_st_rdev = body->rdev;
176 if (body->valid & OBD_MD_FLSIZE)
177 lli->lli_st_size = body->size;
178 if (body->valid & OBD_MD_FLBLOCKS)
179 lli->lli_st_blocks = body->blocks;
182 void obdo_to_inode(struct inode *dst, struct obdo *src, obd_valid valid)
184 struct llu_inode_info *lli = llu_i2info(dst);
186 valid &= src->o_valid;
188 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
189 CDEBUG(D_INODE, "valid "LPX64", cur time %lu/%lu, new %lu/%lu\n",
191 LTIME_S(lli->lli_st_mtime), LTIME_S(lli->lli_st_ctime),
192 (long)src->o_mtime, (long)src->o_ctime);
194 if (valid & OBD_MD_FLATIME)
195 LTIME_S(lli->lli_st_atime) = src->o_atime;
196 if (valid & OBD_MD_FLMTIME)
197 LTIME_S(lli->lli_st_mtime) = src->o_mtime;
198 if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(lli->lli_st_ctime))
199 LTIME_S(lli->lli_st_ctime) = src->o_ctime;
200 if (valid & OBD_MD_FLSIZE)
201 lli->lli_st_size = src->o_size;
202 if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
203 lli->lli_st_blocks = src->o_blocks;
204 if (valid & OBD_MD_FLBLKSZ)
205 lli->lli_st_blksize = src->o_blksize;
206 if (valid & OBD_MD_FLTYPE)
207 lli->lli_st_mode = (lli->lli_st_mode & ~S_IFMT) | (src->o_mode & S_IFMT);
208 if (valid & OBD_MD_FLMODE)
209 lli->lli_st_mode = (lli->lli_st_mode & S_IFMT) | (src->o_mode & ~S_IFMT);
210 if (valid & OBD_MD_FLUID)
211 lli->lli_st_uid = src->o_uid;
212 if (valid & OBD_MD_FLGID)
213 lli->lli_st_gid = src->o_gid;
214 if (valid & OBD_MD_FLFLAGS)
215 lli->lli_st_flags = src->o_flags;
216 if (valid & OBD_MD_FLGENER)
217 lli->lli_st_generation = src->o_generation;
220 #define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
221 #define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
223 void obdo_from_inode(struct obdo *dst, struct inode *src, obd_valid valid)
225 struct llu_inode_info *lli = llu_i2info(src);
226 obd_valid newvalid = 0;
228 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
229 CDEBUG(D_INODE, "valid "LPX64", new time %lu/%lu\n",
230 valid, LTIME_S(lli->lli_st_mtime),
231 LTIME_S(lli->lli_st_ctime));
233 if (valid & OBD_MD_FLATIME) {
234 dst->o_atime = LTIME_S(lli->lli_st_atime);
235 newvalid |= OBD_MD_FLATIME;
237 if (valid & OBD_MD_FLMTIME) {
238 dst->o_mtime = LTIME_S(lli->lli_st_mtime);
239 newvalid |= OBD_MD_FLMTIME;
241 if (valid & OBD_MD_FLCTIME) {
242 dst->o_ctime = LTIME_S(lli->lli_st_ctime);
243 newvalid |= OBD_MD_FLCTIME;
245 if (valid & OBD_MD_FLSIZE) {
246 dst->o_size = lli->lli_st_size;
247 newvalid |= OBD_MD_FLSIZE;
249 if (valid & OBD_MD_FLBLOCKS) { /* allocation of space (x512 bytes) */
250 dst->o_blocks = lli->lli_st_blocks;
251 newvalid |= OBD_MD_FLBLOCKS;
253 if (valid & OBD_MD_FLBLKSZ) { /* optimal block size */
254 dst->o_blksize = lli->lli_st_blksize;
255 newvalid |= OBD_MD_FLBLKSZ;
257 if (valid & OBD_MD_FLTYPE) {
258 dst->o_mode = (dst->o_mode & S_IALLUGO)|(lli->lli_st_mode & S_IFMT);
259 newvalid |= OBD_MD_FLTYPE;
261 if (valid & OBD_MD_FLMODE) {
262 dst->o_mode = (dst->o_mode & S_IFMT)|(lli->lli_st_mode & S_IALLUGO);
263 newvalid |= OBD_MD_FLMODE;
265 if (valid & OBD_MD_FLUID) {
266 dst->o_uid = lli->lli_st_uid;
267 newvalid |= OBD_MD_FLUID;
269 if (valid & OBD_MD_FLGID) {
270 dst->o_gid = lli->lli_st_gid;
271 newvalid |= OBD_MD_FLGID;
273 if (valid & OBD_MD_FLFLAGS) {
274 dst->o_flags = lli->lli_st_flags;
275 newvalid |= OBD_MD_FLFLAGS;
277 if (valid & OBD_MD_FLGENER) {
278 dst->o_generation = lli->lli_st_generation;
279 newvalid |= OBD_MD_FLGENER;
282 dst->o_valid |= newvalid;
286 * really does the getattr on the inode and updates its fields
288 int llu_inode_getattr(struct inode *inode, struct lov_stripe_md *lsm)
290 struct llu_inode_info *lli = llu_i2info(inode);
291 struct obd_export *exp = llu_i2dtexp(inode);
292 struct ptlrpc_request_set *set;
294 obd_valid refresh_valid;
301 memset(&oa, 0, sizeof oa);
302 oa.o_id = lsm->lsm_object_id;
304 oa.o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLSIZE |
305 OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ | OBD_MD_FLMTIME |
308 set = ptlrpc_prep_set();
310 CERROR ("ENOMEM allocing request set\n");
313 rc = obd_getattr_async(exp, &oa, lsm, set);
315 rc = ptlrpc_set_wait(set);
316 ptlrpc_set_destroy(set);
321 refresh_valid = OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ | OBD_MD_FLMTIME |
322 OBD_MD_FLCTIME | OBD_MD_FLSIZE;
324 /* We set this flag in commit write as we extend the file size. When
325 * the bit is set and the lock is canceled that covers the file size,
326 * we clear the bit. This is enough to protect the window where our
327 * local size extension is needed for writeback. However, it relies on
328 * behaviour that won't be true in the near future. This assumes that
329 * all getattr callers get extent locks, which they currnetly do. It
330 * also assumes that we only send discarding asts for {0,eof} truncates
331 * as is currently the case. This will have to be replaced by the
332 * proper eoc communication between clients and the ost, which is on
334 if (test_bit(LLI_F_PREFER_EXTENDED_SIZE, &lli->lli_flags)) {
335 if (oa.o_size < lli->lli_st_size)
336 refresh_valid &= ~OBD_MD_FLSIZE;
338 clear_bit(LLI_F_PREFER_EXTENDED_SIZE, &lli->lli_flags);
341 obdo_refresh_inode(inode, &oa, refresh_valid);
346 static struct inode* llu_new_inode(struct filesys *fs,
347 struct lustre_id *id)
350 struct llu_inode_info *lli;
352 OBD_ALLOC(lli, sizeof(*lli));
356 /* initialize lli here */
357 lli->lli_sbi = llu_fs2sbi(fs);
359 lli->lli_symlink_name = NULL;
361 lli->lli_maxbytes = (__u64)(~0UL);
362 lli->lli_file_data = NULL;
364 lli->lli_sysio_fid.fid_data = &lli->lli_id;
365 lli->lli_sysio_fid.fid_len = sizeof(lli->lli_id);
367 memcpy(&lli->lli_id, id, sizeof(*id));
369 /* file identifier is needed by functions like _sysio_i_find() */
370 inode = _sysio_i_new(fs, &lli->lli_sysio_fid,
371 #ifndef AUTOMOUNT_FILE_NAME
372 id->li_stc.u.e3s.l3s_type & S_IFMT,
374 id->li_stc.u.e3s.l3s_type, /* all of the bits! */
377 &llu_inode_ops, lli);
380 OBD_FREE(lli, sizeof(*lli));
385 static int llu_have_md_lock(struct inode *inode, __u64 lockpart)
387 struct llu_sb_info *sbi = llu_i2sbi(inode);
388 struct llu_inode_info *lli = llu_i2info(inode);
389 struct lustre_handle lockh;
390 struct ldlm_res_id res_id = { .name = {0} };
391 struct obd_device *obddev;
392 ldlm_policy_data_t policy = { .l_inodebits = { lockpart } };
398 obddev = sbi->ll_md_exp->exp_obd;
399 res_id.name[0] = id_fid(&lli->lli_id);
400 res_id.name[1] = id_group(&lli->lli_id);
402 CDEBUG(D_INFO, "trying to match res "LPU64"\n", res_id.name[0]);
404 /* FIXME use LDLM_FL_TEST_LOCK instead */
405 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING;
406 if (ldlm_lock_match(obddev->obd_namespace, flags, &res_id, LDLM_IBITS,
407 &policy, LCK_PR, &lockh)) {
408 ldlm_lock_decref(&lockh, LCK_PR);
412 if (ldlm_lock_match(obddev->obd_namespace, flags, &res_id, LDLM_IBITS,
413 &policy, LCK_PW, &lockh)) {
414 ldlm_lock_decref(&lockh, LCK_PW);
420 static int llu_inode_revalidate(struct inode *inode)
422 struct llu_inode_info *lli = llu_i2info(inode);
423 struct lov_stripe_md *lsm = NULL;
427 CERROR("REPORT THIS LINE TO PETER\n");
431 if (!llu_have_md_lock(inode, MDS_INODELOCK_UPDATE)) {
433 struct ptlrpc_request *req = NULL;
434 struct llu_sb_info *sbi = llu_i2sbi(inode);
439 /* Why don't we update all valid MDS fields here, if we're doing
440 * an RPC anyways? -phil */
441 if (S_ISREG(lli->lli_st_mode)) {
442 ealen = obd_size_diskmd(sbi->ll_dt_exp, NULL);
443 valid |= OBD_MD_FLEASIZE;
445 ll_inode2id(&id, inode);
446 rc = mdc_getattr(sbi->ll_md_exp, &id, valid, NULL, 0,
449 CERROR("failure %d inode %lu\n", rc, lli->lli_st_ino);
452 rc = mdc_req2lustre_md(sbi->ll_md_exp, req, 0,
453 sbi->ll_dt_exp, &md);
455 /* XXX Too paranoid? */
456 if (((md.body->valid ^ valid) & OBD_MD_FLEASIZE) &&
457 !((md.body->valid & OBD_MD_FLNLINK) &&
458 (md.body->nlink == 0))) {
459 CERROR("Asked for %s eadata but got %s (%d)\n",
460 (valid & OBD_MD_FLEASIZE) ? "some" : "no",
461 (md.body->valid & OBD_MD_FLEASIZE) ? "some":"none",
462 md.body->eadatasize);
465 ptlrpc_req_finished(req);
470 llu_update_inode(inode, md.body, md.lsm);
471 if (md.lsm != NULL && llu_i2info(inode)->lli_smd != md.lsm)
472 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
474 if (md.body->valid & OBD_MD_FLSIZE)
475 set_bit(LLI_F_HAVE_MDS_SIZE_LOCK,
476 &llu_i2info(inode)->lli_flags);
477 ptlrpc_req_finished(req);
480 lsm = llu_i2info(inode)->lli_smd;
481 if (!lsm) /* object not yet allocated, don't validate size */
484 /* ll_glimpse_size will prefer locally cached writes if they extend
486 RETURN(llu_glimpse_size(inode));
489 static void copy_stat_buf(struct inode *ino, struct intnl_stat *b)
491 struct llu_inode_info *lli = llu_i2info(ino);
493 b->st_dev = lli->lli_st_dev;
494 b->st_ino = lli->lli_st_ino;
495 b->st_mode = lli->lli_st_mode;
496 b->st_nlink = lli->lli_st_nlink;
497 b->st_uid = lli->lli_st_uid;
498 b->st_gid = lli->lli_st_gid;
499 b->st_rdev = lli->lli_st_rdev;
500 b->st_size = lli->lli_st_size;
501 b->st_blksize = lli->lli_st_blksize;
502 b->st_blocks = lli->lli_st_blocks;
503 b->st_atime = lli->lli_st_atime;
504 b->st_mtime = lli->lli_st_mtime;
505 b->st_ctime = lli->lli_st_ctime;
508 static int llu_iop_getattr(struct pnode *pno,
510 struct intnl_stat *b)
515 liblustre_wait_event(0);
519 LASSERT(pno->p_base->pb_ino);
520 ino = pno->p_base->pb_ino;
522 LASSERT(!pno || pno->p_base->pb_ino == ino);
525 /* libsysio might call us directly without intent lock,
526 * we must re-fetch the attrs here
528 rc = llu_inode_revalidate(ino);
530 copy_stat_buf(ino, b);
531 LASSERT(!llu_i2info(ino)->lli_it);
537 static int null_if_equal(struct ldlm_lock *lock, void *data)
539 if (data == lock->l_ast_data) {
540 lock->l_ast_data = NULL;
542 if (lock->l_req_mode != lock->l_granted_mode)
543 LDLM_ERROR(lock,"clearing inode with ungranted lock\n");
546 return LDLM_ITER_CONTINUE;
549 void llu_clear_inode(struct inode *inode)
552 struct llu_inode_info *lli = llu_i2info(inode);
553 struct llu_sb_info *sbi = llu_i2sbi(inode);
556 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%lu(%p)\n", lli->lli_st_ino,
557 lli->lli_st_generation, inode);
559 ll_inode2id(&id, inode);
560 clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK, &(lli->lli_flags));
561 mdc_change_cbdata(sbi->ll_md_exp, &id, null_if_equal, inode);
564 obd_change_cbdata(sbi->ll_dt_exp, lli->lli_smd,
565 null_if_equal, inode);
568 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
572 if (lli->lli_symlink_name) {
573 OBD_FREE(lli->lli_symlink_name,
574 strlen(lli->lli_symlink_name) + 1);
575 lli->lli_symlink_name = NULL;
581 void llu_iop_gone(struct inode *inode)
583 struct llu_inode_info *lli = llu_i2info(inode);
586 liblustre_wait_event(0);
587 llu_clear_inode(inode);
589 OBD_FREE(lli, sizeof(*lli));
593 static int inode_setattr(struct inode * inode, struct iattr * attr)
595 unsigned int ia_valid = attr->ia_valid;
596 struct llu_inode_info *lli = llu_i2info(inode);
599 if (ia_valid & ATTR_SIZE) {
600 error = llu_vmtruncate(inode, attr->ia_size);
605 if (ia_valid & ATTR_UID)
606 lli->lli_st_uid = attr->ia_uid;
607 if (ia_valid & ATTR_GID)
608 lli->lli_st_gid = attr->ia_gid;
609 if (ia_valid & ATTR_ATIME)
610 lli->lli_st_atime = attr->ia_atime;
611 if (ia_valid & ATTR_MTIME)
612 lli->lli_st_mtime = attr->ia_mtime;
613 if (ia_valid & ATTR_CTIME)
614 lli->lli_st_ctime = attr->ia_ctime;
615 if (ia_valid & ATTR_MODE) {
616 lli->lli_st_mode = attr->ia_mode;
617 if (!in_group_p(lli->lli_st_gid) && !capable(CAP_FSETID))
618 lli->lli_st_mode &= ~S_ISGID;
620 /* mark_inode_dirty(inode); */
625 /* If this inode has objects allocated to it (lsm != NULL), then the OST
626 * object(s) determine the file size and mtime. Otherwise, the MDS will
627 * keep these values until such a time that objects are allocated for it.
628 * We do the MDS operations first, as it is checking permissions for us.
629 * We don't to the MDS RPC if there is nothing that we want to store there,
630 * otherwise there is no harm in updating mtime/atime on the MDS if we are
631 * going to do an RPC anyways.
633 * If we are doing a truncate, we will send the mtime and ctime updates
634 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
635 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
638 int llu_setattr_raw(struct inode *inode, struct iattr *attr)
640 struct lov_stripe_md *lsm = llu_i2info(inode)->lli_smd;
641 struct llu_sb_info *sbi = llu_i2sbi(inode);
642 struct llu_inode_info *lli = llu_i2info(inode);
643 struct ptlrpc_request *request = NULL;
644 struct mdc_op_data op_data;
645 int ia_valid = attr->ia_valid;
649 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu\n", lli->lli_st_ino);
651 if (ia_valid & ATTR_SIZE) {
652 if (attr->ia_size > ll_file_maxbytes(inode)) {
653 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
654 attr->ia_size, ll_file_maxbytes(inode));
658 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
661 /* We mark all of the fields "set" so MDS/OST does not re-set them */
662 if (attr->ia_valid & ATTR_CTIME) {
663 attr->ia_ctime = CURRENT_TIME;
664 attr->ia_valid |= ATTR_CTIME_SET;
666 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
667 attr->ia_atime = CURRENT_TIME;
668 attr->ia_valid |= ATTR_ATIME_SET;
670 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
671 attr->ia_mtime = CURRENT_TIME;
672 attr->ia_valid |= ATTR_MTIME_SET;
675 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
676 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
677 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
678 LTIME_S(CURRENT_TIME));
680 attr->ia_valid &= ~ATTR_SIZE;
682 /* If only OST attributes being set on objects, don't do MDS RPC.
683 * In that case, we need to check permissions and update the local
684 * inode ourselves so we can call obdo_from_inode() always. */
685 if (ia_valid & (lsm ? ~(ATTR_SIZE | ATTR_FROM_OPEN | ATTR_RAW) : ~0)) {
687 llu_prepare_mdc_data(&op_data, inode, NULL, NULL, 0, 0);
689 rc = mdc_setattr(sbi->ll_md_exp, &op_data,
690 attr, NULL, 0, NULL, 0, &request);
693 ptlrpc_req_finished(request);
694 if (rc != -EPERM && rc != -EACCES)
695 CERROR("mdc_setattr fails: rc = %d\n", rc);
699 rc = mdc_req2lustre_md(sbi->ll_md_exp, request, 0,
700 sbi->ll_dt_exp, &md);
702 ptlrpc_req_finished(request);
706 /* Won't invoke vmtruncate as we already cleared ATTR_SIZE,
707 * but needed to set timestamps backwards on utime. */
708 inode_setattr(inode, attr);
709 llu_update_inode(inode, md.body, md.lsm);
710 ptlrpc_req_finished(request);
712 if (!md.lsm || !S_ISREG(lli->lli_st_mode)) {
713 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
717 /* The OST doesn't check permissions, but the alternative is
718 * a gratuitous RPC to the MDS. We already rely on the client
719 * to do read/write/truncate permission checks, so is mtime OK?
721 if (ia_valid & (ATTR_MTIME | ATTR_ATIME)) {
722 /* from sys_utime() */
723 if (!(ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))) {
724 if (current->fsuid != lli->lli_st_uid &&
725 (rc = ll_permission(inode, MAY_WRITE)) != 0)
728 /* from inode_change_ok() */
729 if (current->fsuid != lli->lli_st_uid &&
730 !capable(CAP_FOWNER))
735 /* Won't invoke vmtruncate, as we already cleared ATTR_SIZE */
736 inode_setattr(inode, attr);
739 if (ia_valid & ATTR_SIZE) {
740 ldlm_policy_data_t policy = { .l_extent = {attr->ia_size,
742 struct lustre_handle lockh = { 0 };
743 int err, ast_flags = 0;
744 /* XXX when we fix the AST intents to pass the discard-range
745 * XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA
747 if (attr->ia_size == 0)
748 ast_flags = LDLM_AST_DISCARD_DATA;
750 rc = llu_extent_lock(NULL, inode, lsm, LCK_PW, &policy,
752 if (rc != ELDLM_OK) {
758 rc = llu_vmtruncate(inode, attr->ia_size);
760 /* unlock now as we don't mind others file lockers racing with
761 * the mds updates below? */
762 err = llu_extent_unlock(NULL, inode, lsm, LCK_PW, &lockh);
764 CERROR("llu_extent_unlock failed: %d\n", err);
768 } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
771 CDEBUG(D_INODE, "set mtime on OST inode %lu to %lu\n",
772 lli->lli_st_ino, LTIME_S(attr->ia_mtime));
773 oa.o_id = lsm->lsm_object_id;
774 oa.o_valid = OBD_MD_FLID;
775 obdo_from_inode(&oa, inode, OBD_MD_FLTYPE | OBD_MD_FLATIME |
776 OBD_MD_FLMTIME | OBD_MD_FLCTIME);
777 rc = obd_setattr(sbi->ll_dt_exp, &oa, lsm, NULL);
779 CERROR("obd_setattr fails: rc=%d\n", rc);
784 /* here we simply act as a thin layer to glue it with
785 * llu_setattr_raw(), which is copy from kernel
787 static int llu_iop_setattr(struct pnode *pno,
790 struct intnl_stat *stbuf)
795 liblustre_wait_event(0);
797 LASSERT(!(mask & ~(SETATTR_MTIME | SETATTR_ATIME |
798 SETATTR_UID | SETATTR_GID |
799 SETATTR_LEN | SETATTR_MODE)));
800 memset(&iattr, 0, sizeof(iattr));
802 if (mask & SETATTR_MODE) {
803 iattr.ia_mode = stbuf->st_mode;
804 iattr.ia_valid |= ATTR_MODE;
806 if (mask & SETATTR_MTIME) {
807 iattr.ia_mtime = stbuf->st_mtime;
808 iattr.ia_valid |= ATTR_MTIME;
810 if (mask & SETATTR_ATIME) {
811 iattr.ia_atime = stbuf->st_atime;
812 iattr.ia_valid |= ATTR_ATIME;
814 if (mask & SETATTR_UID) {
815 iattr.ia_uid = stbuf->st_uid;
816 iattr.ia_valid |= ATTR_UID;
818 if (mask & SETATTR_GID) {
819 iattr.ia_gid = stbuf->st_gid;
820 iattr.ia_valid |= ATTR_GID;
822 if (mask & SETATTR_LEN) {
823 iattr.ia_size = stbuf->st_size; /* XXX signed expansion problem */
824 iattr.ia_valid |= ATTR_SIZE;
827 iattr.ia_valid |= ATTR_RAW;
829 RETURN(llu_setattr_raw(ino, &iattr));
832 #define EXT2_LINK_MAX 32000
834 static int llu_iop_symlink_raw(struct pnode *pno, const char *tgt)
836 struct inode *dir = pno->p_base->pb_parent->pb_ino;
837 struct qstr *qstr = &pno->p_base->pb_name;
838 const char *name = qstr->name;
840 struct ptlrpc_request *request = NULL;
841 struct llu_sb_info *sbi = llu_i2sbi(dir);
842 struct mdc_op_data op_data;
846 if (llu_i2info(dir)->lli_st_nlink >= EXT2_LINK_MAX)
849 llu_prepare_mdc_data(&op_data, dir, NULL, name, len, 0);
850 err = mdc_create(sbi->ll_md_exp, &op_data,
851 tgt, strlen(tgt) + 1, S_IFLNK | S_IRWXUGO,
852 current->fsuid, current->fsgid, 0, &request);
853 ptlrpc_req_finished(request);
857 static int llu_readlink_internal(struct inode *inode,
858 struct ptlrpc_request **request,
861 struct llu_inode_info *lli = llu_i2info(inode);
862 struct llu_sb_info *sbi = llu_i2sbi(inode);
864 struct mds_body *body;
865 int rc, symlen = lli->lli_st_size + 1;
870 if (lli->lli_symlink_name) {
871 *symname = lli->lli_symlink_name;
872 CDEBUG(D_INODE, "using cached symlink %s\n", *symname);
876 ll_inode2id(&id, inode);
877 rc = mdc_getattr(sbi->ll_md_exp, &id,
878 OBD_MD_LINKNAME, NULL, 0, symlen, request);
880 CERROR("inode %lu: rc = %d\n", lli->lli_st_ino, rc);
884 body = lustre_msg_buf ((*request)->rq_repmsg, 0, sizeof (*body));
885 LASSERT (body != NULL);
886 LASSERT_REPSWABBED (*request, 0);
888 if ((body->valid & OBD_MD_LINKNAME) == 0) {
889 CERROR ("OBD_MD_LINKNAME not set on reply\n");
890 GOTO (failed, rc = -EPROTO);
893 LASSERT (symlen != 0);
894 if (body->eadatasize != symlen) {
895 CERROR ("inode %lu: symlink length %d not expected %d\n",
896 lli->lli_st_ino, body->eadatasize - 1, symlen - 1);
897 GOTO (failed, rc = -EPROTO);
900 *symname = lustre_msg_buf ((*request)->rq_repmsg, 1, symlen);
901 if (*symname == NULL ||
902 strnlen (*symname, symlen) != symlen - 1) {
903 /* not full/NULL terminated */
904 CERROR ("inode %lu: symlink not NULL terminated string"
905 "of length %d\n", lli->lli_st_ino, symlen - 1);
906 GOTO (failed, rc = -EPROTO);
909 OBD_ALLOC(lli->lli_symlink_name, symlen);
910 /* do not return an error if we cannot cache the symlink locally */
911 if (lli->lli_symlink_name)
912 memcpy(lli->lli_symlink_name, *symname, symlen);
917 ptlrpc_req_finished (*request);
921 static int llu_iop_readlink(struct pnode *pno, char *data, size_t bufsize)
923 struct inode *inode = pno->p_base->pb_ino;
924 struct ptlrpc_request *request;
929 rc = llu_readlink_internal(inode, &request, &symname);
934 strncpy(data, symname, bufsize);
936 ptlrpc_req_finished(request);
941 static int llu_iop_mknod_raw(struct pnode *pno,
945 struct ptlrpc_request *request = NULL;
946 struct inode *dir = pno->p_parent->p_base->pb_ino;
947 struct llu_sb_info *sbi = llu_i2sbi(dir);
948 struct mdc_op_data op_data;
952 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu\n",
953 (int)pno->p_base->pb_name.len, pno->p_base->pb_name.name,
954 llu_i2info(dir)->lli_st_ino);
956 if (llu_i2info(dir)->lli_st_nlink >= EXT2_LINK_MAX)
959 mode &= ~current->fs->umask;
961 switch (mode & S_IFMT) {
964 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
969 llu_prepare_mdc_data(&op_data, dir, NULL,
970 pno->p_base->pb_name.name,
971 pno->p_base->pb_name.len,
973 err = mdc_create(sbi->ll_md_exp, &op_data, NULL, 0, mode,
974 current->fsuid, current->fsgid, dev, &request);
975 ptlrpc_req_finished(request);
986 static int llu_iop_link_raw(struct pnode *old, struct pnode *new)
988 struct inode *src = old->p_base->pb_ino;
989 struct inode *dir = new->p_parent->p_base->pb_ino;
990 const char *name = new->p_base->pb_name.name;
991 int namelen = new->p_base->pb_name.len;
992 struct ptlrpc_request *request = NULL;
993 struct mdc_op_data op_data;
1000 liblustre_wait_event(0);
1001 llu_prepare_mdc_data(&op_data, src, dir, name, namelen, 0);
1002 rc = mdc_link(llu_i2sbi(src)->ll_md_exp, &op_data, &request);
1003 ptlrpc_req_finished(request);
1004 liblustre_wait_event(0);
1010 * libsysio will clear the inode immediately after return
1012 static int llu_iop_unlink_raw(struct pnode *pno)
1014 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1015 struct qstr *qstr = &pno->p_base->pb_name;
1016 const char *name = qstr->name;
1017 int len = qstr->len;
1018 struct inode *target = pno->p_base->pb_ino;
1019 struct ptlrpc_request *request = NULL;
1020 struct mdc_op_data op_data;
1026 liblustre_wait_event(0);
1027 llu_prepare_mdc_data(&op_data, dir, NULL, name, len, 0);
1028 rc = mdc_unlink(llu_i2sbi(dir)->ll_md_exp, &op_data, &request);
1030 rc = llu_objects_destroy(request, dir);
1031 ptlrpc_req_finished(request);
1032 liblustre_wait_event(0);
1036 static int llu_iop_rename_raw(struct pnode *old, struct pnode *new)
1038 struct inode *src = old->p_parent->p_base->pb_ino;
1039 struct inode *tgt = new->p_parent->p_base->pb_ino;
1040 const char *oldname = old->p_base->pb_name.name;
1041 int oldnamelen = old->p_base->pb_name.len;
1042 const char *newname = new->p_base->pb_name.name;
1043 int newnamelen = new->p_base->pb_name.len;
1044 struct ptlrpc_request *request = NULL;
1045 struct mdc_op_data op_data;
1052 llu_prepare_mdc_data(&op_data, src, tgt, NULL, 0, 0);
1053 rc = mdc_rename(llu_i2sbi(src)->ll_md_exp, &op_data,
1054 oldname, oldnamelen, newname, newnamelen,
1057 rc = llu_objects_destroy(request, src);
1060 ptlrpc_req_finished(request);
1065 #ifdef _HAVE_STATVFS
1066 static int llu_statfs_internal(struct llu_sb_info *sbi,
1067 struct obd_statfs *osfs,
1068 unsigned long max_age)
1070 struct obd_statfs obd_osfs;
1074 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age);
1076 CERROR("mdc_statfs fails: rc = %d\n", rc);
1080 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1081 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1083 rc = obd_statfs(class_exp2obd(sbi->ll_dt_exp), &obd_osfs, max_age);
1085 CERROR("obd_statfs fails: rc = %d\n", rc);
1089 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1090 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1093 osfs->os_blocks = obd_osfs.os_blocks;
1094 osfs->os_bfree = obd_osfs.os_bfree;
1095 osfs->os_bavail = obd_osfs.os_bavail;
1097 /* If we don't have as many objects free on the OST as inodes
1098 * on the MDS, we reduce the total number of inodes to
1099 * compensate, so that the "inodes in use" number is correct.
1101 if (obd_osfs.os_ffree < osfs->os_ffree) {
1102 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1104 osfs->os_ffree = obd_osfs.os_ffree;
1110 static int llu_statfs(struct llu_sb_info *sbi, struct statfs *sfs)
1112 struct obd_statfs osfs;
1115 CDEBUG(D_VFSTRACE, "VFS Op:\n");
1117 /* For now we will always get up-to-date statfs values, but in the
1118 * future we may allow some amount of caching on the client (e.g.
1119 * from QOS or lprocfs updates). */
1120 rc = llu_statfs_internal(sbi, &osfs, jiffies - 1);
1124 statfs_unpack(sfs, &osfs);
1126 if (sizeof(sfs->f_blocks) == 4) {
1127 while (osfs.os_blocks > ~0UL) {
1130 osfs.os_blocks >>= 1;
1131 osfs.os_bfree >>= 1;
1132 osfs.os_bavail >>= 1;
1136 sfs->f_blocks = osfs.os_blocks;
1137 sfs->f_bfree = osfs.os_bfree;
1138 sfs->f_bavail = osfs.os_bavail;
1143 static int llu_iop_statvfs(struct pnode *pno,
1145 struct intnl_statvfs *buf)
1151 liblustre_wait_event(0);
1154 LASSERT(pno->p_base->pb_ino);
1155 rc = llu_statfs(llu_i2sbi(pno->p_base->pb_ino), &fs);
1159 /* from native driver */
1160 buf->f_bsize = fs.f_bsize; /* file system block size */
1161 buf->f_frsize = fs.f_bsize; /* file system fundamental block size */
1162 buf->f_blocks = fs.f_blocks;
1163 buf->f_bfree = fs.f_bfree;
1164 buf->f_bavail = fs.f_bavail;
1165 buf->f_files = fs.f_files; /* Total number serial numbers */
1166 buf->f_ffree = fs.f_ffree; /* Number free serial numbers */
1167 buf->f_favail = fs.f_ffree; /* Number free ser num for non-privileged*/
1168 buf->f_fsid = fs.f_fstc.__val[1];
1169 buf->f_flag = 0; /* No equiv in statfs; maybe use type? */
1170 buf->f_namemax = fs.f_namelen;
1175 #endif /* _HAVE_STATVFS */
1177 static int llu_iop_mkdir_raw(struct pnode *pno, mode_t mode)
1179 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1180 struct qstr *qstr = &pno->p_base->pb_name;
1181 const char *name = qstr->name;
1182 int len = qstr->len;
1183 struct ptlrpc_request *request = NULL;
1184 struct llu_inode_info *lli = llu_i2info(dir);
1185 struct mdc_op_data op_data;
1188 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%lu(%p)\n",
1189 len, name, lli->lli_st_ino, lli->lli_st_generation, dir);
1191 if (lli->lli_st_nlink >= EXT2_LINK_MAX)
1194 mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
1195 llu_prepare_mdc_data(&op_data, dir, NULL, name, len, 0);
1196 err = mdc_create(llu_i2sbi(dir)->ll_md_exp, &op_data, NULL, 0, mode,
1197 current->fsuid, current->fsgid, 0, &request);
1198 ptlrpc_req_finished(request);
1202 static int llu_iop_rmdir_raw(struct pnode *pno)
1204 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1205 struct qstr *qstr = &pno->p_base->pb_name;
1206 const char *name = qstr->name;
1207 int len = qstr->len;
1208 struct ptlrpc_request *request = NULL;
1209 struct mdc_op_data op_data;
1210 struct llu_inode_info *lli = llu_i2info(dir);
1213 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%lu(%p)\n",
1214 len, name, lli->lli_st_ino, lli->lli_st_generation, dir);
1216 llu_prepare_mdc_data(&op_data, dir, NULL, name, len, S_IFDIR);
1217 rc = mdc_unlink(llu_i2sbi(dir)->ll_md_exp, &op_data, &request);
1218 ptlrpc_req_finished(request);
1224 #define FCNTL_FLMASK (O_APPEND|O_NONBLOCK|O_ASYNC|O_DIRECT)
1226 #define FCNTL_FLMASK (O_APPEND|O_NONBLOCK|O_ASYNC)
1228 #define FCNTL_FLMASK_INVALID (O_NONBLOCK|O_ASYNC)
1230 static int llu_iop_fcntl(struct inode *ino, int cmd, va_list ap, int *rtn)
1232 struct llu_inode_info *lli = llu_i2info(ino);
1237 *rtn = lli->lli_open_flags;
1240 flags = va_arg(ap, long);
1241 flags &= FCNTL_FLMASK;
1242 if (flags & FCNTL_FLMASK_INVALID) {
1243 CERROR("liblustre don't support O_NONBLOCK, O_ASYNC, "
1244 "and O_DIRECT on file descriptor\n");
1248 lli->lli_open_flags = (int) flags;
1253 CERROR("unsupported fcntl cmd %x\n", cmd);
1258 static int llu_get_grouplock(struct inode *inode, unsigned long arg)
1260 struct llu_inode_info *lli = llu_i2info(inode);
1261 struct ll_file_data *fd = lli->lli_file_data;
1262 ldlm_policy_data_t policy = { .l_extent = { .start = 0,
1263 .end = OBD_OBJECT_EOF}};
1264 struct lustre_handle lockh = { 0 };
1265 struct lov_stripe_md *lsm = lli->lli_smd;
1270 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1274 policy.l_extent.gid = arg;
1275 if (lli->lli_open_flags & O_NONBLOCK)
1276 flags = LDLM_FL_BLOCK_NOWAIT;
1278 err = llu_extent_lock(fd, inode, lsm, LCK_GROUP, &policy, &lockh,
1283 fd->fd_flags |= LL_FILE_GROUP_LOCKED|LL_FILE_IGNORE_LOCK;
1285 memcpy(&fd->fd_cwlockh, &lockh, sizeof(lockh));
1290 static int llu_put_grouplock(struct inode *inode, unsigned long arg)
1292 struct llu_inode_info *lli = llu_i2info(inode);
1293 struct ll_file_data *fd = lli->lli_file_data;
1294 struct lov_stripe_md *lsm = lli->lli_smd;
1298 if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED))
1301 if (fd->fd_gid != arg)
1304 fd->fd_flags &= ~(LL_FILE_GROUP_LOCKED|LL_FILE_IGNORE_LOCK);
1306 err = llu_extent_unlock(fd, inode, lsm, LCK_GROUP, &fd->fd_cwlockh);
1311 memset(&fd->fd_cwlockh, 0, sizeof(fd->fd_cwlockh));
1316 static int llu_iop_ioctl(struct inode *ino, unsigned long int request,
1321 liblustre_wait_event(0);
1324 case LL_IOC_GROUP_LOCK:
1325 arg = va_arg(ap, unsigned long);
1326 return llu_get_grouplock(ino, arg);
1327 case LL_IOC_GROUP_UNLOCK:
1328 arg = va_arg(ap, unsigned long);
1329 return llu_put_grouplock(ino, arg);
1332 CERROR("did not support ioctl cmd %lx\n", request);
1337 * we already do syncronous read/write
1339 static int llu_iop_sync(struct inode *inode)
1341 liblustre_wait_event(0);
1345 static int llu_iop_datasync(struct inode *inode)
1347 liblustre_wait_event(0);
1351 struct filesys_ops llu_filesys_ops =
1353 fsop_gone: llu_fsop_gone,
1356 struct inode *llu_iget(struct filesys *fs, struct lustre_md *md)
1358 struct inode *inode;
1359 struct lustre_id id;
1360 struct file_identifier fileid = {&id, sizeof(id)};
1362 if ((md->body->valid &
1363 (OBD_MD_FLGENER | OBD_MD_FLID | OBD_MD_FLTYPE)) !=
1364 (OBD_MD_FLGENER | OBD_MD_FLID | OBD_MD_FLTYPE)) {
1365 CERROR("bad md body valid mask 0x"LPX64"\n",
1368 return ERR_PTR(-EPERM);
1373 /* try to find existing inode */
1374 inode = _sysio_i_find(fs, &fileid);
1376 struct llu_inode_info *lli = llu_i2info(inode);
1378 if (inode->i_zombie ||
1379 lli->lli_st_generation != id_gen(&md->body->id1)) {
1383 llu_update_inode(inode, md->body, md->lsm);
1388 inode = llu_new_inode(fs, &id);
1390 llu_update_inode(inode, md->body, md->lsm);
1396 llu_fsswop_mount(const char *source,
1398 const void *data __IS_UNUSED,
1399 struct pnode *tocover,
1400 struct mount **mntp)
1404 struct pnode_base *rootpb;
1405 struct obd_device *obd;
1406 struct lustre_id rootid;
1407 struct llu_sb_info *sbi;
1408 struct obd_statfs osfs;
1409 static struct qstr noname = { NULL, 0, 0 };
1410 struct ptlrpc_request *request = NULL;
1411 struct lustre_handle lmv_conn = {0, };
1412 struct lustre_handle lov_conn = {0, };
1413 struct lustre_md md;
1415 struct config_llog_instance cfg;
1416 struct lustre_profile *lprof;
1417 char *lov = NULL, *lmv = NULL;
1418 int async = 1, err = -EINVAL;
1422 /* allocate & initialize sbi */
1423 OBD_ALLOC(sbi, sizeof(*sbi));
1427 INIT_LIST_HEAD(&sbi->ll_conn_chain);
1428 generate_random_uuid(uuid);
1429 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
1431 /* generate a string unique to this super, let's try
1432 the address of the super itself.*/
1433 OBD_ALLOC(sbi->ll_instance, sizeof(sbi) * 2 + 1);
1434 if (sbi->ll_instance == NULL)
1435 GOTO(out_free, err = -ENOMEM);
1436 sprintf(sbi->ll_instance, "%p", sbi);
1438 /* retrive & parse config log */
1439 cfg.cfg_instance = sbi->ll_instance;
1440 cfg.cfg_uuid = sbi->ll_sb_uuid;
1441 err = liblustre_process_log(&cfg, 1);
1443 CERROR("Unable to process log: %s\n", g_zconf_profile);
1444 GOTO(out_free, err);
1447 lprof = class_get_profile(g_zconf_profile);
1448 if (lprof == NULL) {
1449 CERROR("No profile found: %s\n", g_zconf_profile);
1450 GOTO(out_free, err = -EINVAL);
1453 OBD_FREE(lov, strlen(lov) + 1);
1454 OBD_ALLOC(lov, strlen(lprof->lp_lov) +
1455 strlen(sbi->ll_instance) + 2);
1456 sprintf(lov, "%s-%s", lprof->lp_lov, sbi->ll_instance);
1459 OBD_FREE(lmv, strlen(lmv) + 1);
1460 OBD_ALLOC(lmv, strlen(lprof->lp_lmv) +
1461 strlen(sbi->ll_instance) + 2);
1462 sprintf(lmv, "%s-%s", lprof->lp_lmv, sbi->ll_instance);
1466 GOTO(out_free, err = -EINVAL);
1470 GOTO(out_free, err = -EINVAL);
1473 fs = _sysio_fs_new(&llu_filesys_ops, flags, sbi);
1479 obd = class_name2obd(lmv);
1481 CERROR("MDC %s: not setup or attached\n", lmv);
1482 GOTO(out_free, err = -EINVAL);
1484 obd_set_info(obd->obd_self_export, strlen("async"), "async",
1485 sizeof(async), &async);
1487 if (mdc_init_ea_size(obd, osc))
1488 GOTO(out_free, err = -EINVAL);
1491 err = obd_connect(&lmv_conn, obd, &sbi->ll_sb_uuid, 0);
1493 CERROR("cannot connect to %s: rc = %d\n", lmv, err);
1494 GOTO(out_free, err);
1496 sbi->ll_md_exp = class_conn2export(&lmv_conn);
1498 err = obd_statfs(obd, &osfs, 100000000);
1503 * FIXME fill fs stat data into sbi here!!! FIXME
1507 obd = class_name2obd(lov);
1509 CERROR("OSC %s: not setup or attached\n", lov);
1510 GOTO(out_lmv, err = -EINVAL);
1512 obd_set_info(obd->obd_self_export, strlen("async"), "async",
1513 sizeof(async), &async);
1515 err = obd_connect(&lov_conn, obd, &sbi->ll_sb_uuid, 0);
1517 CERROR("cannot connect to %s: rc = %d\n", lov, err);
1520 sbi->ll_dt_exp = class_conn2export(&lov_conn);
1522 err = mdc_getstatus(sbi->ll_md_exp, &rootid);
1524 CERROR("cannot mds_connect: rc = %d\n", err);
1527 CDEBUG(D_SUPER, "rootid "LPU64"\n", rootid.li_stc.u.e3s.l3s_ino);
1528 sbi->ll_rootino = rootid.li_stc.u.e3s.l3s_ino;
1530 /* fetch attr of root inode */
1531 err = mdc_getattr(sbi->ll_md_exp, &rootid,
1532 OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS, NULL, 0,
1535 CERROR("mdc_getattr failed for root: rc = %d\n", err);
1539 err = mdc_req2lustre_md(sbi->ll_md_exp, request, 0,
1540 sbi->ll_dt_exp, &md);
1542 CERROR("failed to understand root inode md: rc = %d\n",err);
1543 GOTO(out_request, err);
1546 LASSERT(sbi->ll_rootino != 0);
1548 root = llu_iget(fs, &md);
1549 if (!root || IS_ERR(root)) {
1550 CERROR("fail to generate root inode\n");
1551 GOTO(out_request, err = -EBADF);
1555 * Generate base path-node for root.
1557 rootpb = _sysio_pb_new(&noname, NULL, root);
1563 err = _sysio_do_mount(fs, rootpb, flags, tocover, mntp);
1565 _sysio_pb_gone(rootpb);
1569 ptlrpc_req_finished(request);
1571 printf("LibLustre: namespace mounted successfully!\n");
1576 _sysio_i_gone(root);
1578 ptlrpc_req_finished(request);
1580 obd_disconnect(sbi->ll_dt_exp, 0);
1582 obd_disconnect(sbi->ll_md_exp, 0);
1584 OBD_FREE(sbi, sizeof(*sbi));
1588 struct fssw_ops llu_fssw_ops = {
1592 struct inode_ops llu_inode_ops = {
1593 .inop_lookup = llu_iop_lookup,
1594 .inop_getattr = llu_iop_getattr,
1595 .inop_setattr = llu_iop_setattr,
1596 .inop_getdirentries = llu_iop_getdirentries,
1597 .inop_mkdir = llu_iop_mkdir_raw,
1598 .inop_rmdir = llu_iop_rmdir_raw,
1599 .inop_symlink = llu_iop_symlink_raw,
1600 .inop_readlink = llu_iop_readlink,
1601 .inop_open = llu_iop_open,
1602 .inop_close = llu_iop_close,
1603 .inop_link = llu_iop_link_raw,
1604 .inop_unlink = llu_iop_unlink_raw,
1605 .inop_rename = llu_iop_rename_raw,
1606 .inop_iodone = llu_iop_iodone,
1607 .inop_fcntl = llu_iop_fcntl,
1608 .inop_sync = llu_iop_sync,
1609 .inop_read = llu_iop_read,
1610 .inop_write = llu_iop_write,
1611 .inop_datasync = llu_iop_datasync,
1612 .inop_ioctl = llu_iop_ioctl,
1613 .inop_mknod = llu_iop_mknod_raw,
1614 #ifdef _HAVE_STATVFS
1615 .inop_statvfs = llu_iop_statvfs,
1617 .inop_gone = llu_iop_gone,