1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/liblustre/super.c
38 * Lustre Light Super operations
41 #define DEBUG_SUBSYSTEM S_LLITE
47 #include <sys/types.h>
50 #include <sys/queue.h>
52 # include <sys/statvfs.h>
54 # include <sys/statfs.h>
70 #include "llite_lib.h"
78 #define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
80 static int ll_permission(struct inode *inode, int mask)
82 struct intnl_stat *st = llu_i2stat(inode);
83 mode_t mode = st->st_mode;
85 if (current->fsuid == st->st_uid)
87 else if (in_group_p(st->st_gid))
90 if ((mode & mask & (MAY_READ|MAY_WRITE|MAY_EXEC)) == mask)
93 if ((mask & (MAY_READ|MAY_WRITE)) ||
94 (st->st_mode & S_IXUGO))
95 if (cfs_capable(CFS_CAP_DAC_OVERRIDE))
98 if (mask == MAY_READ ||
99 (S_ISDIR(st->st_mode) && !(mask & MAY_WRITE))) {
100 if (cfs_capable(CFS_CAP_DAC_READ_SEARCH))
107 static void llu_fsop_gone(struct filesys *fs)
109 struct llu_sb_info *sbi = (struct llu_sb_info *) fs->fs_private;
110 struct obd_device *obd = class_exp2obd(sbi->ll_md_exp);
114 list_del(&sbi->ll_conn_chain);
116 obd_disconnect(sbi->ll_dt_exp);
117 obd_disconnect(sbi->ll_md_exp);
119 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) != NULL)
120 class_manual_cleanup(obd);
122 OBD_FREE(sbi, sizeof(*sbi));
124 liblustre_wait_idle();
128 static struct inode_ops llu_inode_ops;
130 static ldlm_mode_t llu_take_md_lock(struct inode *inode, __u64 bits,
131 struct lustre_handle *lockh)
133 ldlm_policy_data_t policy = { .l_inodebits = {bits}};
139 fid = &llu_i2info(inode)->lli_fid;
140 CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
142 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING;
143 rc = md_lock_match(llu_i2mdexp(inode), flags, fid, LDLM_IBITS, &policy,
144 LCK_CR|LCK_CW|LCK_PR|LCK_PW, lockh);
148 void llu_update_inode(struct inode *inode, struct lustre_md *md)
150 struct llu_inode_info *lli = llu_i2info(inode);
151 struct mdt_body *body = md->body;
152 struct lov_stripe_md *lsm = md->lsm;
153 struct intnl_stat *st = llu_i2stat(inode);
155 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
157 if (body->valid & OBD_MD_FLMODE)
158 st->st_mode = (st->st_mode & S_IFMT)|(body->mode & ~S_IFMT);
159 if (body->valid & OBD_MD_FLTYPE)
160 st->st_mode = (st->st_mode & ~S_IFMT)|(body->mode & S_IFMT);
163 if (lli->lli_smd == NULL) {
164 cl_inode_init(inode, md);
166 lli->lli_maxbytes = lsm->lsm_maxbytes;
167 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
168 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
170 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
171 CERROR("lsm mismatch for inode %lld\n",
172 (long long)st->st_ino);
178 if (body->valid & OBD_MD_FLMTIME &&
179 body->mtime > LTIME_S(st->st_mtime))
180 LTIME_S(st->st_mtime) = body->mtime;
181 if (body->valid & OBD_MD_FLATIME &&
182 body->atime > LTIME_S(st->st_atime))
183 LTIME_S(st->st_atime) = body->atime;
185 /* mtime is always updated with ctime, but can be set in past.
186 As write and utime(2) may happen within 1 second, and utime's
187 mtime has a priority over write's one, so take mtime from mds
188 for the same ctimes. */
189 if (body->valid & OBD_MD_FLCTIME &&
190 body->ctime >= LTIME_S(st->st_ctime)) {
191 LTIME_S(st->st_ctime) = body->ctime;
192 if (body->valid & OBD_MD_FLMTIME)
193 LTIME_S(st->st_mtime) = body->mtime;
195 if (S_ISREG(st->st_mode))
196 st->st_blksize = min(2UL * PTLRPC_MAX_BRW_SIZE, LL_MAX_BLKSIZE);
198 st->st_blksize = 4096;
199 if (body->valid & OBD_MD_FLUID)
200 st->st_uid = body->uid;
201 if (body->valid & OBD_MD_FLGID)
202 st->st_gid = body->gid;
203 if (body->valid & OBD_MD_FLNLINK)
204 st->st_nlink = body->nlink;
205 if (body->valid & OBD_MD_FLRDEV)
206 st->st_rdev = body->rdev;
207 if (body->valid & OBD_MD_FLFLAGS)
208 lli->lli_st_flags = body->flags;
209 if (body->valid & OBD_MD_FLSIZE) {
210 if ((llu_i2sbi(inode)->ll_lco.lco_flags & OBD_CONNECT_SOM) &&
211 S_ISREG(st->st_mode) && lli->lli_smd) {
212 struct lustre_handle lockh;
215 /* As it is possible a blocking ast has been processed
216 * by this time, we need to check there is an UPDATE
217 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
219 mode = llu_take_md_lock(inode, MDS_INODELOCK_UPDATE,
222 st->st_size = body->size;
223 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
224 ldlm_lock_decref(&lockh, mode);
227 st->st_size = body->size;
230 if (body->valid & OBD_MD_FLBLOCKS)
231 st->st_blocks = body->blocks;
235 void obdo_to_inode(struct inode *dst, struct obdo *src, obd_flag valid)
237 struct llu_inode_info *lli = llu_i2info(dst);
238 struct intnl_stat *st = llu_i2stat(dst);
240 valid &= src->o_valid;
242 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
243 CDEBUG(D_INODE,"valid "LPX64", cur time "CFS_TIME_T"/"CFS_TIME_T
246 LTIME_S(st->st_mtime), LTIME_S(st->st_ctime),
247 (long)src->o_mtime, (long)src->o_ctime);
249 if (valid & OBD_MD_FLATIME)
250 LTIME_S(st->st_atime) = src->o_atime;
251 if (valid & OBD_MD_FLMTIME)
252 LTIME_S(st->st_mtime) = src->o_mtime;
253 if (valid & OBD_MD_FLCTIME && src->o_ctime > LTIME_S(st->st_ctime))
254 LTIME_S(st->st_ctime) = src->o_ctime;
255 if (valid & OBD_MD_FLSIZE)
256 st->st_size = src->o_size;
257 if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
258 st->st_blocks = src->o_blocks;
259 if (valid & OBD_MD_FLBLKSZ)
260 st->st_blksize = src->o_blksize;
261 if (valid & OBD_MD_FLTYPE)
262 st->st_mode = (st->st_mode & ~S_IFMT) | (src->o_mode & S_IFMT);
263 if (valid & OBD_MD_FLMODE)
264 st->st_mode = (st->st_mode & S_IFMT) | (src->o_mode & ~S_IFMT);
265 if (valid & OBD_MD_FLUID)
266 st->st_uid = src->o_uid;
267 if (valid & OBD_MD_FLGID)
268 st->st_gid = src->o_gid;
269 if (valid & OBD_MD_FLFLAGS)
270 lli->lli_st_flags = src->o_flags;
273 #define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
274 #define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
276 void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid)
278 struct llu_inode_info *lli = llu_i2info(src);
279 struct intnl_stat *st = llu_i2stat(src);
280 obd_flag newvalid = 0;
282 if (valid & (OBD_MD_FLCTIME | OBD_MD_FLMTIME))
283 CDEBUG(D_INODE, "valid %x, new time "CFS_TIME_T"/"CFS_TIME_T"\n",
284 valid, LTIME_S(st->st_mtime),
285 LTIME_S(st->st_ctime));
287 if (valid & OBD_MD_FLATIME) {
288 dst->o_atime = LTIME_S(st->st_atime);
289 newvalid |= OBD_MD_FLATIME;
291 if (valid & OBD_MD_FLMTIME) {
292 dst->o_mtime = LTIME_S(st->st_mtime);
293 newvalid |= OBD_MD_FLMTIME;
295 if (valid & OBD_MD_FLCTIME) {
296 dst->o_ctime = LTIME_S(st->st_ctime);
297 newvalid |= OBD_MD_FLCTIME;
299 if (valid & OBD_MD_FLSIZE) {
300 dst->o_size = st->st_size;
301 newvalid |= OBD_MD_FLSIZE;
303 if (valid & OBD_MD_FLBLOCKS) { /* allocation of space (x512 bytes) */
304 dst->o_blocks = st->st_blocks;
305 newvalid |= OBD_MD_FLBLOCKS;
307 if (valid & OBD_MD_FLBLKSZ) { /* optimal block size */
308 dst->o_blksize = st->st_blksize;
309 newvalid |= OBD_MD_FLBLKSZ;
311 if (valid & OBD_MD_FLTYPE) {
312 dst->o_mode = (dst->o_mode & S_IALLUGO)|(st->st_mode & S_IFMT);
313 newvalid |= OBD_MD_FLTYPE;
315 if (valid & OBD_MD_FLMODE) {
316 dst->o_mode = (dst->o_mode & S_IFMT)|(st->st_mode & S_IALLUGO);
317 newvalid |= OBD_MD_FLMODE;
319 if (valid & OBD_MD_FLUID) {
320 dst->o_uid = st->st_uid;
321 newvalid |= OBD_MD_FLUID;
323 if (valid & OBD_MD_FLGID) {
324 dst->o_gid = st->st_gid;
325 newvalid |= OBD_MD_FLGID;
327 if (valid & OBD_MD_FLFLAGS) {
328 dst->o_flags = lli->lli_st_flags;
329 newvalid |= OBD_MD_FLFLAGS;
331 if (valid & OBD_MD_FLGENER) {
332 dst->o_generation = lli->lli_st_generation;
333 newvalid |= OBD_MD_FLGENER;
335 if (valid & OBD_MD_FLFID) {
336 dst->o_fid = st->st_ino;
337 newvalid |= OBD_MD_FLFID;
340 dst->o_valid |= newvalid;
344 * really does the getattr on the inode and updates its fields
346 int llu_inode_getattr(struct inode *inode, struct obdo *obdo)
348 struct llu_inode_info *lli = llu_i2info(inode);
349 struct ptlrpc_request_set *set;
350 struct lov_stripe_md *lsm = lli->lli_smd;
351 struct obd_info oinfo = { { { 0 } } };
359 oinfo.oi_oa->o_id = lsm->lsm_object_id;
360 oinfo.oi_oa->o_gr = lsm->lsm_object_gr;
361 oinfo.oi_oa->o_mode = S_IFREG;
362 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE |
363 OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
364 OBD_MD_FLBLKSZ | OBD_MD_FLMTIME |
365 OBD_MD_FLCTIME | OBD_MD_FLGROUP;
367 set = ptlrpc_prep_set();
369 CERROR ("ENOMEM allocing request set\n");
372 rc = obd_getattr_async(llu_i2obdexp(inode), &oinfo, set);
374 rc = ptlrpc_set_wait(set);
375 ptlrpc_set_destroy(set);
380 oinfo.oi_oa->o_valid = OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ |
381 OBD_MD_FLMTIME | OBD_MD_FLCTIME |
384 obdo_refresh_inode(inode, oinfo.oi_oa, oinfo.oi_oa->o_valid);
385 CDEBUG(D_INODE, "objid "LPX64" size %Lu, blocks %Lu, "
386 "blksize %Lu\n", lli->lli_smd->lsm_object_id,
387 (long long unsigned)llu_i2stat(inode)->st_size,
388 (long long unsigned)llu_i2stat(inode)->st_blocks,
389 (long long unsigned)llu_i2stat(inode)->st_blksize);
393 static struct inode* llu_new_inode(struct filesys *fs,
397 struct llu_inode_info *lli;
398 struct intnl_stat st = {
401 #ifndef AUTOMOUNT_FILE_NAME
402 .st_mode = fid->f_type & S_IFMT,
404 .st_mode = fid->f_type /* all of the bits! */
407 /* FIXME: fix this later */
414 OBD_ALLOC(lli, sizeof(*lli));
418 /* initialize lli here */
419 lli->lli_sbi = llu_fs2sbi(fs);
421 lli->lli_symlink_name = NULL;
423 lli->lli_maxbytes = (__u64)(~0UL);
424 lli->lli_file_data = NULL;
426 lli->lli_sysio_fid.fid_data = &lli->lli_fid;
427 lli->lli_sysio_fid.fid_len = sizeof(lli->lli_fid);
430 /* file identifier is needed by functions like _sysio_i_find() */
431 inode = _sysio_i_new(fs, &lli->lli_sysio_fid,
432 &st, 0, &llu_inode_ops, lli);
435 OBD_FREE(lli, sizeof(*lli));
440 static int llu_have_md_lock(struct inode *inode, __u64 lockpart)
442 struct lustre_handle lockh;
443 ldlm_policy_data_t policy = { .l_inodebits = { lockpart } };
450 fid = &llu_i2info(inode)->lli_fid;
451 CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
453 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK;
454 if (md_lock_match(llu_i2mdexp(inode), flags, fid, LDLM_IBITS, &policy,
455 LCK_CR|LCK_CW|LCK_PR|LCK_PW, &lockh)) {
461 static int llu_inode_revalidate(struct inode *inode)
463 struct lov_stripe_md *lsm = NULL;
467 CERROR("REPORT THIS LINE TO PETER\n");
471 if (!llu_have_md_lock(inode, MDS_INODELOCK_UPDATE)) {
473 struct ptlrpc_request *req = NULL;
474 struct llu_sb_info *sbi = llu_i2sbi(inode);
475 unsigned long valid = OBD_MD_FLGETATTR;
478 /* Why don't we update all valid MDS fields here, if we're
479 * doing an RPC anyways? -phil */
480 if (S_ISREG(llu_i2stat(inode)->st_mode)) {
481 ealen = obd_size_diskmd(sbi->ll_dt_exp, NULL);
482 valid |= OBD_MD_FLEASIZE;
484 rc = md_getattr(sbi->ll_md_exp, ll_inode2fid(inode),
485 NULL, valid, ealen, &req);
487 CERROR("failure %d inode %llu\n", rc,
488 (long long)llu_i2stat(inode)->st_ino);
491 rc = md_get_lustre_md(sbi->ll_md_exp, req,
492 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
494 /* XXX Too paranoid? */
495 if (((md.body->valid ^ valid) & OBD_MD_FLEASIZE) &&
496 !((md.body->valid & OBD_MD_FLNLINK) &&
497 (md.body->nlink == 0))) {
498 CERROR("Asked for %s eadata but got %s (%d)\n",
499 (valid & OBD_MD_FLEASIZE) ? "some" : "no",
500 (md.body->valid & OBD_MD_FLEASIZE) ? "some":"none",
501 md.body->eadatasize);
504 ptlrpc_req_finished(req);
509 llu_update_inode(inode, &md);
510 if (md.lsm != NULL && llu_i2info(inode)->lli_smd != md.lsm)
511 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
512 ptlrpc_req_finished(req);
515 lsm = llu_i2info(inode)->lli_smd;
516 if (!lsm) /* object not yet allocated, don't validate size */
519 /* ll_glimpse_size will prefer locally cached writes if they extend
521 RETURN(cl_glimpse_size(inode));
524 static void copy_stat_buf(struct inode *ino, struct intnl_stat *b)
526 *b = *llu_i2stat(ino);
529 static int llu_iop_getattr(struct pnode *pno,
531 struct intnl_stat *b)
536 liblustre_wait_event(0);
540 LASSERT(pno->p_base->pb_ino);
541 ino = pno->p_base->pb_ino;
543 LASSERT(!pno || pno->p_base->pb_ino == ino);
546 /* libsysio might call us directly without intent lock,
547 * we must re-fetch the attrs here
549 rc = llu_inode_revalidate(ino);
551 copy_stat_buf(ino, b);
552 LASSERT(!llu_i2info(ino)->lli_it);
555 liblustre_wait_event(0);
559 static int null_if_equal(struct ldlm_lock *lock, void *data)
561 if (data == lock->l_ast_data) {
562 lock->l_ast_data = NULL;
564 if (lock->l_req_mode != lock->l_granted_mode)
565 LDLM_ERROR(lock,"clearing inode with ungranted lock\n");
568 return LDLM_ITER_CONTINUE;
571 void llu_clear_inode(struct inode *inode)
573 struct llu_inode_info *lli = llu_i2info(inode);
574 struct llu_sb_info *sbi = llu_i2sbi(inode);
577 CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu/%lu(%p)\n",
578 (long long)llu_i2stat(inode)->st_ino, lli->lli_st_generation,
581 lli->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
582 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
583 null_if_equal, inode);
586 obd_change_cbdata(sbi->ll_dt_exp, lli->lli_smd,
587 null_if_equal, inode);
589 cl_inode_fini(inode);
592 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
596 if (lli->lli_symlink_name) {
597 OBD_FREE(lli->lli_symlink_name,
598 strlen(lli->lli_symlink_name) + 1);
599 lli->lli_symlink_name = NULL;
605 void llu_iop_gone(struct inode *inode)
607 struct llu_inode_info *lli = llu_i2info(inode);
610 liblustre_wait_event(0);
611 llu_clear_inode(inode);
613 OBD_FREE(lli, sizeof(*lli));
617 static int inode_setattr(struct inode * inode, struct iattr * attr)
619 unsigned int ia_valid = attr->ia_valid;
620 struct intnl_stat *st = llu_i2stat(inode);
624 * inode_setattr() is only ever invoked with ATTR_SIZE (by
625 * llu_setattr_raw()) when file has no bodies. Check this.
627 LASSERT(ergo(ia_valid & ATTR_SIZE, llu_i2info(inode)->lli_smd == NULL));
629 if (ia_valid & ATTR_SIZE)
630 st->st_size = attr->ia_size;
631 if (ia_valid & ATTR_UID)
632 st->st_uid = attr->ia_uid;
633 if (ia_valid & ATTR_GID)
634 st->st_gid = attr->ia_gid;
635 if (ia_valid & ATTR_ATIME)
636 st->st_atime = attr->ia_atime;
637 if (ia_valid & ATTR_MTIME)
638 st->st_mtime = attr->ia_mtime;
639 if (ia_valid & ATTR_CTIME)
640 st->st_ctime = attr->ia_ctime;
641 if (ia_valid & ATTR_MODE) {
642 st->st_mode = attr->ia_mode;
643 if (!in_group_p(st->st_gid) && !cfs_capable(CFS_CAP_FSETID))
644 st->st_mode &= ~S_ISGID;
646 /* mark_inode_dirty(inode); */
650 int llu_md_setattr(struct inode *inode, struct md_op_data *op_data,
651 struct md_open_data **mod)
654 struct llu_sb_info *sbi = llu_i2sbi(inode);
655 struct ptlrpc_request *request = NULL;
659 llu_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY);
660 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL,
664 ptlrpc_req_finished(request);
665 if (rc != -EPERM && rc != -EACCES)
666 CERROR("md_setattr fails: rc = %d\n", rc);
670 rc = md_get_lustre_md(sbi->ll_md_exp, request,
671 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
673 ptlrpc_req_finished(request);
677 /* We call inode_setattr to adjust timestamps.
678 * If there is at least some data in file, we cleared ATTR_SIZE
679 * above to avoid invoking vmtruncate, otherwise it is important
680 * to call vmtruncate in inode_setattr to update inode->i_size
682 inode_setattr(inode, &op_data->op_attr);
683 llu_update_inode(inode, &md);
684 ptlrpc_req_finished(request);
689 /* Close IO epoch and send Size-on-MDS attribute update. */
690 static int llu_setattr_done_writing(struct inode *inode,
691 struct md_op_data *op_data,
692 struct md_open_data *mod)
694 struct llu_inode_info *lli = llu_i2info(inode);
695 struct intnl_stat *st = llu_i2stat(inode);
699 LASSERT(op_data != NULL);
700 if (!S_ISREG(st->st_mode))
703 /* XXX: pass och here for the recovery purpose. */
704 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
705 op_data->op_ioepoch, PFID(&lli->lli_fid));
707 op_data->op_flags = MF_EPOCH_CLOSE;
708 llu_done_writing_attr(inode, op_data);
709 llu_pack_inode2opdata(inode, op_data, NULL);
711 rc = md_done_writing(llu_i2sbi(inode)->ll_md_exp, op_data, mod);
713 /* MDS has instructed us to obtain Size-on-MDS attribute
714 * from OSTs and send setattr to back to MDS. */
715 rc = llu_sizeonmds_update(inode, &op_data->op_handle,
716 op_data->op_ioepoch);
718 CERROR("inode %llu mdc truncate failed: rc = %d\n",
719 (unsigned long long)st->st_ino, rc);
724 /* If this inode has objects allocated to it (lsm != NULL), then the OST
725 * object(s) determine the file size and mtime. Otherwise, the MDS will
726 * keep these values until such a time that objects are allocated for it.
727 * We do the MDS operations first, as it is checking permissions for us.
728 * We don't to the MDS RPC if there is nothing that we want to store there,
729 * otherwise there is no harm in updating mtime/atime on the MDS if we are
730 * going to do an RPC anyways.
732 * If we are doing a truncate, we will send the mtime and ctime updates
733 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
734 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
737 int llu_setattr_raw(struct inode *inode, struct iattr *attr)
739 struct lov_stripe_md *lsm = llu_i2info(inode)->lli_smd;
740 struct intnl_stat *st = llu_i2stat(inode);
741 int ia_valid = attr->ia_valid;
742 struct md_op_data op_data = { { 0 } };
743 struct md_open_data *mod = NULL;
747 CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu\n", (long long)st->st_ino);
749 if (ia_valid & ATTR_SIZE) {
750 if (attr->ia_size > ll_file_maxbytes(inode)) {
751 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
752 (long long)attr->ia_size,
753 ll_file_maxbytes(inode));
757 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
760 /* We mark all of the fields "set" so MDS/OST does not re-set them */
761 if (attr->ia_valid & ATTR_CTIME) {
762 attr->ia_ctime = CURRENT_TIME;
763 attr->ia_valid |= ATTR_CTIME_SET;
765 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
766 attr->ia_atime = CURRENT_TIME;
767 attr->ia_valid |= ATTR_ATIME_SET;
769 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
770 attr->ia_mtime = CURRENT_TIME;
771 attr->ia_valid |= ATTR_MTIME_SET;
773 if ((attr->ia_valid & ATTR_CTIME) && !(attr->ia_valid & ATTR_MTIME)) {
774 /* To avoid stale mtime on mds, obtain it from ost and send
776 rc = cl_glimpse_size(inode);
780 attr->ia_valid |= ATTR_MTIME_SET | ATTR_MTIME;
781 attr->ia_mtime = inode->i_stbuf.st_mtime;
784 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
785 CDEBUG(D_INODE, "setting mtime "CFS_TIME_T", ctime "CFS_TIME_T
786 ", now = "CFS_TIME_T"\n",
787 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
788 LTIME_S(CURRENT_TIME));
790 /* NB: ATTR_SIZE will only be set after this point if the size
791 * resides on the MDS, ie, this file has no objects. */
793 attr->ia_valid &= ~ATTR_SIZE;
795 /* If only OST attributes being set on objects, don't do MDS RPC.
796 * In that case, we need to check permissions and update the local
797 * inode ourselves so we can call obdo_from_inode() always. */
798 if (ia_valid & (lsm ? ~(ATTR_FROM_OPEN | ATTR_RAW) : ~0)) {
799 memcpy(&op_data.op_attr, attr, sizeof(*attr));
801 /* Open epoch for truncate. */
802 if (exp_connect_som(llu_i2mdexp(inode)) &&
803 (ia_valid & ATTR_SIZE))
804 op_data.op_flags = MF_EPOCH_OPEN;
805 rc = llu_md_setattr(inode, &op_data, &mod);
809 llu_ioepoch_open(llu_i2info(inode), op_data.op_ioepoch);
810 if (!lsm || !S_ISREG(st->st_mode)) {
811 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
815 /* The OST doesn't check permissions, but the alternative is
816 * a gratuitous RPC to the MDS. We already rely on the client
817 * to do read/write/truncate permission checks, so is mtime OK?
819 if (ia_valid & (ATTR_MTIME | ATTR_ATIME)) {
820 /* from sys_utime() */
821 if (!(ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET))) {
822 if (current->fsuid != st->st_uid &&
823 (rc = ll_permission(inode, MAY_WRITE)) != 0)
826 /* from inode_change_ok() */
827 if (current->fsuid != st->st_uid &&
828 !cfs_capable(CFS_CAP_FOWNER))
834 /* Won't invoke llu_vmtruncate(), as we already cleared
836 inode_setattr(inode, attr);
839 if (ia_valid & ATTR_SIZE) {
840 rc = cl_setattr_do_truncate(inode, attr->ia_size, NULL);
841 } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
842 CDEBUG(D_INODE, "set mtime on OST inode %llu to %lu\n",
843 (long long unsigned)st->st_ino, LTIME_S(attr->ia_mtime));
844 rc = cl_setattr_ost(inode, NULL);
848 if (op_data.op_ioepoch)
849 rc1 = llu_setattr_done_writing(inode, &op_data, mod);
850 return rc ? rc : rc1;
853 /* here we simply act as a thin layer to glue it with
854 * llu_setattr_raw(), which is copy from kernel
856 static int llu_iop_setattr(struct pnode *pno,
859 struct intnl_stat *stbuf)
865 liblustre_wait_event(0);
867 LASSERT(!(mask & ~(SETATTR_MTIME | SETATTR_ATIME |
868 SETATTR_UID | SETATTR_GID |
869 SETATTR_LEN | SETATTR_MODE)));
870 memset(&iattr, 0, sizeof(iattr));
872 if (mask & SETATTR_MODE) {
873 iattr.ia_mode = stbuf->st_mode;
874 iattr.ia_valid |= ATTR_MODE;
876 if (mask & SETATTR_MTIME) {
877 iattr.ia_mtime = stbuf->st_mtime;
878 iattr.ia_valid |= ATTR_MTIME | ATTR_MTIME_SET;
880 if (mask & SETATTR_ATIME) {
881 iattr.ia_atime = stbuf->st_atime;
882 iattr.ia_valid |= ATTR_ATIME | ATTR_ATIME_SET;
884 if (mask & SETATTR_UID) {
885 iattr.ia_uid = stbuf->st_uid;
886 iattr.ia_valid |= ATTR_UID;
888 if (mask & SETATTR_GID) {
889 iattr.ia_gid = stbuf->st_gid;
890 iattr.ia_valid |= ATTR_GID;
892 if (mask & SETATTR_LEN) {
893 iattr.ia_size = stbuf->st_size; /* XXX signed expansion problem */
894 iattr.ia_valid |= ATTR_SIZE;
897 iattr.ia_valid |= ATTR_RAW | ATTR_CTIME;
898 iattr.ia_ctime = CURRENT_TIME;
900 rc = llu_setattr_raw(ino, &iattr);
901 liblustre_wait_idle();
905 #define EXT2_LINK_MAX 32000
907 static int llu_iop_symlink_raw(struct pnode *pno, const char *tgt)
909 struct inode *dir = pno->p_base->pb_parent->pb_ino;
910 struct qstr *qstr = &pno->p_base->pb_name;
911 const char *name = qstr->name;
913 struct ptlrpc_request *request = NULL;
914 struct llu_sb_info *sbi = llu_i2sbi(dir);
915 struct md_op_data op_data = {{ 0 }};
919 liblustre_wait_event(0);
920 if (llu_i2stat(dir)->st_nlink >= EXT2_LINK_MAX)
923 llu_prep_md_op_data(&op_data, dir, NULL, name, len, 0,
926 err = md_create(sbi->ll_md_exp, &op_data, tgt, strlen(tgt) + 1,
927 S_IFLNK | S_IRWXUGO, current->fsuid, current->fsgid,
928 cfs_curproc_cap_pack(), 0, &request);
929 ptlrpc_req_finished(request);
930 liblustre_wait_event(0);
934 static int llu_readlink_internal(struct inode *inode,
935 struct ptlrpc_request **request,
938 struct llu_inode_info *lli = llu_i2info(inode);
939 struct llu_sb_info *sbi = llu_i2sbi(inode);
940 struct mdt_body *body;
941 struct intnl_stat *st = llu_i2stat(inode);
942 int rc, symlen = st->st_size + 1;
948 if (lli->lli_symlink_name) {
949 *symname = lli->lli_symlink_name;
950 CDEBUG(D_INODE, "using cached symlink %s\n", *symname);
954 rc = md_getattr(sbi->ll_md_exp, ll_inode2fid(inode), NULL,
955 OBD_MD_LINKNAME, symlen, request);
957 CERROR("inode %llu: rc = %d\n", (long long)st->st_ino, rc);
961 body = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_BODY);
962 LASSERT(body != NULL);
964 if ((body->valid & OBD_MD_LINKNAME) == 0) {
965 CERROR ("OBD_MD_LINKNAME not set on reply\n");
966 GOTO (failed, rc = -EPROTO);
969 LASSERT(symlen != 0);
970 if (body->eadatasize != symlen) {
971 CERROR("inode %llu: symlink length %d not expected %d\n",
972 (long long)st->st_ino, body->eadatasize - 1, symlen - 1);
973 GOTO(failed, rc = -EPROTO);
976 *symname = req_capsule_server_get(&(*request)->rq_pill, &RMF_MDT_MD);
977 if (*symname == NULL ||
978 strnlen(*symname, symlen) != symlen - 1) {
979 /* not full/NULL terminated */
980 CERROR("inode %llu: symlink not NULL terminated string"
981 "of length %d\n", (long long)st->st_ino, symlen - 1);
982 GOTO(failed, rc = -EPROTO);
985 OBD_ALLOC(lli->lli_symlink_name, symlen);
986 /* do not return an error if we cannot cache the symlink locally */
987 if (lli->lli_symlink_name)
988 memcpy(lli->lli_symlink_name, *symname, symlen);
993 ptlrpc_req_finished (*request);
997 static int llu_iop_readlink(struct pnode *pno, char *data, size_t bufsize)
999 struct inode *inode = pno->p_base->pb_ino;
1000 struct ptlrpc_request *request;
1005 liblustre_wait_event(0);
1006 rc = llu_readlink_internal(inode, &request, &symname);
1011 strncpy(data, symname, bufsize);
1012 rc = strlen(symname);
1014 ptlrpc_req_finished(request);
1016 liblustre_wait_event(0);
1020 static int llu_iop_mknod_raw(struct pnode *pno,
1024 struct ptlrpc_request *request = NULL;
1025 struct inode *dir = pno->p_parent->p_base->pb_ino;
1026 struct llu_sb_info *sbi = llu_i2sbi(dir);
1027 struct md_op_data op_data = {{ 0 }};
1031 liblustre_wait_event(0);
1032 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%llu\n",
1033 (int)pno->p_base->pb_name.len, pno->p_base->pb_name.name,
1034 (long long)llu_i2stat(dir)->st_ino);
1036 if (llu_i2stat(dir)->st_nlink >= EXT2_LINK_MAX)
1039 switch (mode & S_IFMT) {
1042 mode |= S_IFREG; /* for mode = 0 case, fallthrough */
1047 llu_prep_md_op_data(&op_data, dir, NULL,
1048 pno->p_base->pb_name.name,
1049 pno->p_base->pb_name.len, 0,
1052 err = md_create(sbi->ll_md_exp, &op_data, NULL, 0, mode,
1053 current->fsuid, current->fsgid,
1054 cfs_curproc_cap_pack(), dev, &request);
1055 ptlrpc_req_finished(request);
1063 liblustre_wait_event(0);
1067 static int llu_iop_link_raw(struct pnode *old, struct pnode *new)
1069 struct inode *src = old->p_base->pb_ino;
1070 struct inode *dir = new->p_parent->p_base->pb_ino;
1071 const char *name = new->p_base->pb_name.name;
1072 int namelen = new->p_base->pb_name.len;
1073 struct ptlrpc_request *request = NULL;
1074 struct md_op_data op_data = {{ 0 }};
1081 liblustre_wait_event(0);
1082 llu_prep_md_op_data(&op_data, src, dir, name, namelen, 0,
1084 rc = md_link(llu_i2sbi(src)->ll_md_exp, &op_data, &request);
1085 ptlrpc_req_finished(request);
1086 liblustre_wait_event(0);
1092 * libsysio will clear the inode immediately after return
1094 static int llu_iop_unlink_raw(struct pnode *pno)
1096 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1097 struct qstr *qstr = &pno->p_base->pb_name;
1098 const char *name = qstr->name;
1099 int len = qstr->len;
1100 struct inode *target = pno->p_base->pb_ino;
1101 struct ptlrpc_request *request = NULL;
1102 struct md_op_data op_data = { { 0 } };
1108 liblustre_wait_event(0);
1109 llu_prep_md_op_data(&op_data, dir, NULL, name, len, 0,
1111 rc = md_unlink(llu_i2sbi(dir)->ll_md_exp, &op_data, &request);
1113 rc = llu_objects_destroy(request, dir);
1114 ptlrpc_req_finished(request);
1115 liblustre_wait_idle();
1120 static int llu_iop_rename_raw(struct pnode *old, struct pnode *new)
1122 struct inode *src = old->p_parent->p_base->pb_ino;
1123 struct inode *tgt = new->p_parent->p_base->pb_ino;
1124 const char *oldname = old->p_base->pb_name.name;
1125 int oldnamelen = old->p_base->pb_name.len;
1126 const char *newname = new->p_base->pb_name.name;
1127 int newnamelen = new->p_base->pb_name.len;
1128 struct ptlrpc_request *request = NULL;
1129 struct md_op_data op_data = { { 0 } };
1136 liblustre_wait_event(0);
1137 llu_prep_md_op_data(&op_data, src, tgt, NULL, 0, 0,
1139 rc = md_rename(llu_i2sbi(src)->ll_md_exp, &op_data,
1140 oldname, oldnamelen, newname, newnamelen,
1143 rc = llu_objects_destroy(request, src);
1146 ptlrpc_req_finished(request);
1147 liblustre_wait_idle();
1152 #ifdef _HAVE_STATVFS
1153 static int llu_statfs_internal(struct llu_sb_info *sbi,
1154 struct obd_statfs *osfs, __u64 max_age)
1156 struct obd_statfs obd_osfs;
1160 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, 0);
1162 CERROR("md_statfs fails: rc = %d\n", rc);
1166 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1167 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1169 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1170 &obd_statfs, max_age, 0);
1172 CERROR("obd_statfs fails: rc = %d\n", rc);
1176 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1177 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1180 osfs->os_blocks = obd_osfs.os_blocks;
1181 osfs->os_bfree = obd_osfs.os_bfree;
1182 osfs->os_bavail = obd_osfs.os_bavail;
1184 /* If we don't have as many objects free on the OST as inodes
1185 * on the MDS, we reduce the total number of inodes to
1186 * compensate, so that the "inodes in use" number is correct.
1188 if (obd_osfs.os_ffree < osfs->os_ffree) {
1189 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1191 osfs->os_ffree = obd_osfs.os_ffree;
1197 static int llu_statfs(struct llu_sb_info *sbi, struct statfs *sfs)
1199 struct obd_statfs osfs;
1202 CDEBUG(D_VFSTRACE, "VFS Op:\n");
1204 /* For now we will always get up-to-date statfs values, but in the
1205 * future we may allow some amount of caching on the client (e.g.
1206 * from QOS or lprocfs updates). */
1207 rc = llu_statfs_internal(sbi, &osfs, cfs_time_current_64() - HZ);
1211 statfs_unpack(sfs, &osfs);
1213 if (sizeof(sfs->f_blocks) == 4) {
1214 while (osfs.os_blocks > ~0UL) {
1217 osfs.os_blocks >>= 1;
1218 osfs.os_bfree >>= 1;
1219 osfs.os_bavail >>= 1;
1223 sfs->f_blocks = osfs.os_blocks;
1224 sfs->f_bfree = osfs.os_bfree;
1225 sfs->f_bavail = osfs.os_bavail;
1230 static int llu_iop_statvfs(struct pnode *pno,
1232 struct intnl_statvfs *buf)
1238 liblustre_wait_event(0);
1241 LASSERT(pno->p_base->pb_ino);
1242 rc = llu_statfs(llu_i2sbi(pno->p_base->pb_ino), &fs);
1246 /* from native driver */
1247 buf->f_bsize = fs.f_bsize; /* file system block size */
1248 buf->f_frsize = fs.f_bsize; /* file system fundamental block size */
1249 buf->f_blocks = fs.f_blocks;
1250 buf->f_bfree = fs.f_bfree;
1251 buf->f_bavail = fs.f_bavail;
1252 buf->f_files = fs.f_files; /* Total number serial numbers */
1253 buf->f_ffree = fs.f_ffree; /* Number free serial numbers */
1254 buf->f_favail = fs.f_ffree; /* Number free ser num for non-privileged*/
1255 buf->f_fsid = fs.f_fsid.__val[1];
1256 buf->f_flag = 0; /* No equiv in statfs; maybe use type? */
1257 buf->f_namemax = fs.f_namelen;
1260 liblustre_wait_event(0);
1263 #endif /* _HAVE_STATVFS */
1265 static int llu_iop_mkdir_raw(struct pnode *pno, mode_t mode)
1267 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1268 struct qstr *qstr = &pno->p_base->pb_name;
1269 const char *name = qstr->name;
1270 int len = qstr->len;
1271 struct ptlrpc_request *request = NULL;
1272 struct intnl_stat *st = llu_i2stat(dir);
1273 struct md_op_data op_data = {{ 0 }};
1277 liblustre_wait_event(0);
1278 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%llu/%lu(%p)\n", len, name,
1279 (long long)st->st_ino, llu_i2info(dir)->lli_st_generation, dir);
1281 if (st->st_nlink >= EXT2_LINK_MAX)
1284 llu_prep_md_op_data(&op_data, dir, NULL, name, len, 0,
1287 err = md_create(llu_i2sbi(dir)->ll_md_exp, &op_data, NULL, 0,
1288 mode | S_IFDIR, current->fsuid, current->fsgid,
1289 cfs_curproc_cap_pack(), 0, &request);
1290 ptlrpc_req_finished(request);
1291 liblustre_wait_event(0);
1295 static int llu_iop_rmdir_raw(struct pnode *pno)
1297 struct inode *dir = pno->p_base->pb_parent->pb_ino;
1298 struct qstr *qstr = &pno->p_base->pb_name;
1299 const char *name = qstr->name;
1300 int len = qstr->len;
1301 struct ptlrpc_request *request = NULL;
1302 struct md_op_data op_data = {{ 0 }};
1306 liblustre_wait_event(0);
1307 CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%llu/%lu(%p)\n", len, name,
1308 (long long)llu_i2stat(dir)->st_ino,
1309 llu_i2info(dir)->lli_st_generation, dir);
1311 llu_prep_md_op_data(&op_data, dir, NULL, name, len, S_IFDIR,
1313 rc = md_unlink(llu_i2sbi(dir)->ll_md_exp, &op_data, &request);
1314 ptlrpc_req_finished(request);
1316 liblustre_wait_event(0);
1321 #define FCNTL_FLMASK (O_APPEND|O_NONBLOCK|O_ASYNC|O_DIRECT)
1323 #define FCNTL_FLMASK (O_APPEND|O_NONBLOCK|O_ASYNC)
1325 #define FCNTL_FLMASK_INVALID (O_NONBLOCK|O_ASYNC)
1327 /* refer to ll_file_flock() for details */
1328 static int llu_file_flock(struct inode *ino,
1330 struct file_lock *file_lock)
1332 struct llu_inode_info *lli = llu_i2info(ino);
1333 struct intnl_stat *st = llu_i2stat(ino);
1334 struct ldlm_res_id res_id =
1335 { .name = {fid_seq(&lli->lli_fid),
1336 fid_oid(&lli->lli_fid),
1337 fid_ver(&lli->lli_fid),
1339 struct ldlm_enqueue_info einfo = { LDLM_FLOCK, 0, NULL,
1340 ldlm_flock_completion_ast, NULL, NULL, file_lock };
1342 struct lustre_handle lockh = {0};
1343 ldlm_policy_data_t flock;
1347 CDEBUG(D_VFSTRACE, "VFS Op:inode=%llu file_lock=%p\n",
1348 (unsigned long long)st->st_ino, file_lock);
1350 flock.l_flock.pid = file_lock->fl_pid;
1351 flock.l_flock.start = file_lock->fl_start;
1352 flock.l_flock.end = file_lock->fl_end;
1354 switch (file_lock->fl_type) {
1356 einfo.ei_mode = LCK_PR;
1359 einfo.ei_mode = LCK_NL;
1362 einfo.ei_mode = LCK_PW;
1365 CERROR("unknown fcntl lock type: %d\n", file_lock->fl_type);
1372 #if F_SETLKW64 != F_SETLKW
1380 #if F_SETLK64 != F_SETLK
1384 flags = LDLM_FL_BLOCK_NOWAIT;
1388 #if F_GETLK64 != F_GETLK
1392 flags = LDLM_FL_TEST_LOCK;
1393 file_lock->fl_type = einfo.ei_mode;
1396 CERROR("unknown fcntl cmd: %d\n", cmd);
1400 CDEBUG(D_DLMTRACE, "inode=%llu, pid=%u, cmd=%d, flags=%#x, mode=%u, "
1401 "start="LPX64", end="LPX64"\n", (unsigned long long)st->st_ino,
1402 flock.l_flock.pid, cmd, flags, einfo.ei_mode, flock.l_flock.start,
1406 struct lmv_obd *lmv;
1407 struct obd_device *lmv_obd;
1408 lmv_obd = class_exp2obd(llu_i2mdexp(ino));
1409 lmv = &lmv_obd->u.lmv;
1411 if (lmv->desc.ld_tgt_count < 1)
1412 RETURN(rc = -ENODEV);
1414 if (lmv->tgts[0].ltd_exp != NULL)
1415 rc = ldlm_cli_enqueue(lmv->tgts[0].ltd_exp, NULL, &einfo, &res_id,
1416 &flock, &flags, NULL, 0, &lockh, 0);
1423 static int assign_type(struct file_lock *fl, int type)
1436 static int flock_to_posix_lock(struct inode *ino,
1437 struct file_lock *fl,
1440 switch (l->l_whence) {
1441 /* XXX: only SEEK_SET is supported in lustre */
1449 fl->fl_end = l->l_len - 1;
1453 fl->fl_end = OFFSET_MAX;
1455 fl->fl_pid = getpid();
1456 fl->fl_flags = FL_POSIX;
1457 fl->fl_notify = NULL;
1458 fl->fl_insert = NULL;
1459 fl->fl_remove = NULL;
1460 /* XXX: these fields can't be filled with suitable values,
1461 but I think lustre doesn't use them.
1463 fl->fl_owner = NULL;
1466 return assign_type(fl, l->l_type);
1469 static int llu_fcntl_getlk(struct inode *ino, struct flock *flock)
1471 struct file_lock fl;
1475 if ((flock->l_type != F_RDLCK) && (flock->l_type != F_WRLCK))
1478 error = flock_to_posix_lock(ino, &fl, flock);
1482 error = llu_file_flock(ino, F_GETLK, &fl);
1486 flock->l_type = F_UNLCK;
1487 if (fl.fl_type != F_UNLCK) {
1488 flock->l_pid = fl.fl_pid;
1489 flock->l_start = fl.fl_start;
1490 flock->l_len = fl.fl_end == OFFSET_MAX ? 0:
1491 fl.fl_end - fl.fl_start + 1;
1492 flock->l_whence = SEEK_SET;
1493 flock->l_type = fl.fl_type;
1500 static int llu_fcntl_setlk(struct inode *ino, int cmd, struct flock *flock)
1502 struct file_lock fl;
1503 int flags = llu_i2info(ino)->lli_open_flags + 1;
1506 error = flock_to_posix_lock(ino, &fl, flock);
1509 if (cmd == F_SETLKW)
1510 fl.fl_flags |= FL_SLEEP;
1513 switch (flock->l_type) {
1515 if (!(flags & FMODE_READ))
1519 if (!(flags & FMODE_WRITE))
1529 error = llu_file_flock(ino, cmd, &fl);
1537 static int llu_iop_fcntl(struct inode *ino, int cmd, va_list ap, int *rtn)
1539 struct llu_inode_info *lli = llu_i2info(ino);
1541 struct flock *flock;
1544 liblustre_wait_event(0);
1547 *rtn = lli->lli_open_flags;
1550 flags = va_arg(ap, long);
1551 flags &= FCNTL_FLMASK;
1552 if (flags & FCNTL_FLMASK_INVALID) {
1553 LCONSOLE_ERROR_MSG(0x010, "liblustre does not support "
1554 "the O_NONBLOCK or O_ASYNC flags. "
1555 "Please fix your application.\n");
1560 lli->lli_open_flags = (int)(flags & FCNTL_FLMASK) |
1561 (lli->lli_open_flags & ~FCNTL_FLMASK);
1566 #if F_GETLK64 != F_GETLK
1570 flock = va_arg(ap, struct flock *);
1571 err = llu_fcntl_getlk(ino, flock);
1576 #if F_SETLKW64 != F_SETLKW
1582 #if F_SETLK64 != F_SETLK
1586 flock = va_arg(ap, struct flock *);
1587 err = llu_fcntl_setlk(ino, cmd, flock);
1591 CERROR("unsupported fcntl cmd %x\n", cmd);
1597 liblustre_wait_event(0);
1601 static int llu_get_grouplock(struct inode *inode, unsigned long arg)
1603 struct llu_inode_info *lli = llu_i2info(inode);
1604 struct ll_file_data *fd = lli->lli_file_data;
1606 struct ccc_grouplock grouplock;
1609 if (fd->fd_flags & LL_FILE_IGNORE_LOCK) {
1612 if (fd->fd_flags & LL_FILE_GROUP_LOCKED) {
1615 LASSERT(fd->fd_grouplock.cg_lock == NULL);
1617 rc = cl_get_grouplock(cl_i2info(inode)->lli_clob,
1618 arg, (lli->lli_open_flags & O_NONBLOCK),
1624 fd->fd_flags |= LL_FILE_GROUP_LOCKED;
1625 fd->fd_grouplock = grouplock;
1630 int llu_put_grouplock(struct inode *inode, unsigned long arg)
1632 struct llu_inode_info *lli = llu_i2info(inode);
1633 struct ll_file_data *fd = lli->lli_file_data;
1634 struct ccc_grouplock grouplock;
1637 if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED))
1640 LASSERT(fd->fd_grouplock.cg_lock != NULL);
1642 if (fd->fd_grouplock.cg_gid != arg)
1645 grouplock = fd->fd_grouplock;
1646 memset(&fd->fd_grouplock, 0, sizeof(fd->fd_grouplock));
1647 fd->fd_flags &= ~LL_FILE_GROUP_LOCKED;
1649 cl_put_grouplock(&grouplock);
1654 static int llu_lov_dir_setstripe(struct inode *ino, unsigned long arg)
1656 struct llu_sb_info *sbi = llu_i2sbi(ino);
1657 struct ptlrpc_request *request = NULL;
1658 struct md_op_data op_data = {{ 0 }};
1659 struct lov_user_md lum, *lump = (struct lov_user_md *)arg;
1662 llu_prep_md_op_data(&op_data, ino, NULL, NULL, 0, 0,
1665 LASSERT(sizeof(lum) == sizeof(*lump));
1666 LASSERT(sizeof(lum.lmm_objects[0]) ==
1667 sizeof(lump->lmm_objects[0]));
1668 if (copy_from_user(&lum, lump, sizeof(lum)))
1671 switch (lum.lmm_magic) {
1672 case LOV_USER_MAGIC_V1: {
1673 if (lum.lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V1))
1674 lustre_swab_lov_user_md_v1(&lum);
1677 case LOV_USER_MAGIC_V3: {
1678 if (lum.lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V3))
1679 lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)&lum);
1683 CDEBUG(D_IOCTL, "bad userland LOV MAGIC:"
1684 " %#08x != %#08x nor %#08x\n",
1685 lum.lmm_magic, LOV_USER_MAGIC_V1,
1691 /* swabbing is done in lov_setstripe() on server side */
1692 rc = md_setattr(sbi->ll_md_exp, &op_data, &lum,
1693 sizeof(lum), NULL, 0, &request, NULL);
1695 ptlrpc_req_finished(request);
1696 if (rc != -EPERM && rc != -EACCES)
1697 CERROR("md_setattr fails: rc = %d\n", rc);
1700 ptlrpc_req_finished(request);
1705 static int llu_lov_setstripe_ea_info(struct inode *ino, int flags,
1706 struct lov_user_md *lum, int lum_size)
1708 struct llu_sb_info *sbi = llu_i2sbi(ino);
1709 struct llu_inode_info *lli = llu_i2info(ino);
1710 struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags};
1711 struct ldlm_enqueue_info einfo = { LDLM_IBITS, LCK_CR,
1712 llu_md_blocking_ast, ldlm_completion_ast, NULL, NULL, NULL };
1713 struct ptlrpc_request *req = NULL;
1714 struct lustre_md md;
1715 struct md_op_data data = {{ 0 }};
1716 struct lustre_handle lockh;
1721 CDEBUG(D_IOCTL, "stripe already exists for ino "DFID"\n",
1722 PFID(&lli->lli_fid));
1726 llu_prep_md_op_data(&data, NULL, ino, NULL, 0, O_RDWR,
1728 rc = md_enqueue(sbi->ll_md_exp, &einfo, &oit, &data,
1729 &lockh, lum, lum_size, NULL, LDLM_FL_INTENT_ONLY);
1733 req = oit.d.lustre.it_data;
1734 rc = it_open_error(DISP_IT_EXECD, &oit);
1740 rc = it_open_error(DISP_OPEN_OPEN, &oit);
1746 rc = md_get_lustre_md(sbi->ll_md_exp, req,
1747 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
1751 llu_update_inode(ino, &md);
1752 llu_local_open(lli, &oit);
1753 /* release intent */
1754 if (lustre_handle_is_used(&lockh))
1755 ldlm_lock_decref(&lockh, LCK_CR);
1756 ptlrpc_req_finished(req);
1758 rc = llu_file_release(ino);
1763 ptlrpc_req_finished(req);
1767 static int llu_lov_file_setstripe(struct inode *ino, unsigned long arg)
1769 struct lov_user_md lum, *lump = (struct lov_user_md *)arg;
1771 int flags = FMODE_WRITE;
1774 LASSERT(sizeof(lum) == sizeof(*lump));
1775 LASSERT(sizeof(lum.lmm_objects[0]) == sizeof(lump->lmm_objects[0]));
1776 if (copy_from_user(&lum, lump, sizeof(lum)))
1779 rc = llu_lov_setstripe_ea_info(ino, flags, &lum, sizeof(lum));
1783 static int llu_lov_setstripe(struct inode *ino, unsigned long arg)
1785 struct intnl_stat *st = llu_i2stat(ino);
1786 if (S_ISREG(st->st_mode))
1787 return llu_lov_file_setstripe(ino, arg);
1788 if (S_ISDIR(st->st_mode))
1789 return llu_lov_dir_setstripe(ino, arg);
1794 static int llu_lov_getstripe(struct inode *ino, unsigned long arg)
1796 struct lov_stripe_md *lsm = llu_i2info(ino)->lli_smd;
1801 return obd_iocontrol(LL_IOC_LOV_GETSTRIPE, llu_i2obdexp(ino), 0, lsm,
1805 static int llu_iop_ioctl(struct inode *ino, unsigned long int request,
1811 liblustre_wait_event(0);
1814 case LL_IOC_GROUP_LOCK:
1815 arg = va_arg(ap, unsigned long);
1816 rc = llu_get_grouplock(ino, arg);
1818 case LL_IOC_GROUP_UNLOCK:
1819 arg = va_arg(ap, unsigned long);
1820 rc = llu_put_grouplock(ino, arg);
1822 case LL_IOC_LOV_SETSTRIPE:
1823 arg = va_arg(ap, unsigned long);
1824 rc = llu_lov_setstripe(ino, arg);
1826 case LL_IOC_LOV_GETSTRIPE:
1827 arg = va_arg(ap, unsigned long);
1828 rc = llu_lov_getstripe(ino, arg);
1831 CERROR("did not support ioctl cmd %lx\n", request);
1836 liblustre_wait_event(0);
1841 * we already do syncronous read/write
1843 static int llu_iop_sync(struct inode *inode)
1845 liblustre_wait_event(0);
1849 static int llu_iop_datasync(struct inode *inode)
1851 liblustre_wait_event(0);
1855 struct filesys_ops llu_filesys_ops =
1857 fsop_gone: llu_fsop_gone,
1860 struct inode *llu_iget(struct filesys *fs, struct lustre_md *md)
1862 struct inode *inode;
1864 struct file_identifier fileid = {&fid, sizeof(fid)};
1866 if ((md->body->valid & (OBD_MD_FLID | OBD_MD_FLTYPE)) !=
1867 (OBD_MD_FLID | OBD_MD_FLTYPE)) {
1868 CERROR("bad md body valid mask "LPX64"\n", md->body->valid);
1870 return ERR_PTR(-EPERM);
1873 /* try to find existing inode */
1874 fid = md->body->fid1;
1876 inode = _sysio_i_find(fs, &fileid);
1878 if (inode->i_zombie/* ||
1879 lli->lli_st_generation != md->body->generation*/) {
1883 llu_update_inode(inode, md);
1888 inode = llu_new_inode(fs, &fid);
1890 llu_update_inode(inode, md);
1896 llu_fsswop_mount(const char *source,
1898 const void *data __IS_UNUSED,
1899 struct pnode *tocover,
1900 struct mount **mntp)
1904 struct pnode_base *rootpb;
1905 struct obd_device *obd;
1906 struct llu_sb_info *sbi;
1907 struct obd_statfs osfs;
1908 static struct qstr noname = { NULL, 0, 0 };
1909 struct ptlrpc_request *request = NULL;
1910 struct lustre_md md;
1912 struct config_llog_instance cfg = {0, };
1913 char ll_instance[sizeof(sbi) * 2 + 1];
1914 struct lustre_profile *lprof;
1915 char *zconf_mgsnid, *zconf_profile;
1916 char *osc = NULL, *mdc = NULL;
1917 int async = 1, err = -EINVAL;
1918 struct obd_connect_data ocd = {0,};
1922 if (ll_parse_mount_target(source,
1925 CERROR("mal-formed target %s\n", source);
1928 if (!zconf_mgsnid || !zconf_profile) {
1929 printf("Liblustre: invalid target %s\n", source);
1932 /* allocate & initialize sbi */
1933 OBD_ALLOC(sbi, sizeof(*sbi));
1937 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
1938 ll_generate_random_uuid(uuid);
1939 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
1941 /* generate a string unique to this super, let's try
1942 the address of the super itself.*/
1943 sprintf(ll_instance, "%p", sbi);
1945 /* retrive & parse config log */
1946 cfg.cfg_instance = ll_instance;
1947 cfg.cfg_uuid = sbi->ll_sb_uuid;
1948 err = liblustre_process_log(&cfg, zconf_mgsnid, zconf_profile, 1);
1950 CERROR("Unable to process log: %s\n", zconf_profile);
1951 GOTO(out_free, err);
1954 lprof = class_get_profile(zconf_profile);
1955 if (lprof == NULL) {
1956 CERROR("No profile found: %s\n", zconf_profile);
1957 GOTO(out_free, err = -EINVAL);
1959 OBD_ALLOC(osc, strlen(lprof->lp_dt) + strlen(ll_instance) + 2);
1960 sprintf(osc, "%s-%s", lprof->lp_dt, ll_instance);
1962 OBD_ALLOC(mdc, strlen(lprof->lp_md) + strlen(ll_instance) + 2);
1963 sprintf(mdc, "%s-%s", lprof->lp_md, ll_instance);
1967 GOTO(out_free, err = -EINVAL);
1971 GOTO(out_free, err = -EINVAL);
1974 fs = _sysio_fs_new(&llu_filesys_ops, flags, sbi);
1980 obd = class_name2obd(mdc);
1982 CERROR("MDC %s: not setup or attached\n", mdc);
1983 GOTO(out_free, err = -EINVAL);
1985 obd_set_info_async(obd->obd_self_export, sizeof(KEY_ASYNC), KEY_ASYNC,
1986 sizeof(async), &async, NULL);
1988 ocd.ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_VERSION |
1989 OBD_CONNECT_FID | OBD_CONNECT_AT |
1990 OBD_CONNECT_VBR | OBD_CONNECT_SOM;
1991 #ifdef LIBLUSTRE_POSIX_ACL
1992 ocd.ocd_connect_flags |= OBD_CONNECT_ACL;
1994 ocd.ocd_ibits_known = MDS_INODELOCK_FULL;
1995 ocd.ocd_version = LUSTRE_VERSION_CODE;
1998 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, &ocd, NULL);
2000 CERROR("cannot connect to %s: rc = %d\n", mdc, err);
2001 GOTO(out_free, err);
2004 err = obd_statfs(obd, &osfs, 100000000, 0);
2009 * FIXME fill fs stat data into sbi here!!! FIXME
2013 obd = class_name2obd(osc);
2015 CERROR("OSC %s: not setup or attached\n", osc);
2016 GOTO(out_md, err = -EINVAL);
2018 obd_set_info_async(obd->obd_self_export, sizeof(KEY_ASYNC), KEY_ASYNC,
2019 sizeof(async), &async, NULL);
2021 obd->obd_upcall.onu_owner = &sbi->ll_lco;
2022 obd->obd_upcall.onu_upcall = cl_ocd_update;
2024 ocd.ocd_connect_flags = OBD_CONNECT_SRVLOCK | OBD_CONNECT_REQPORTAL |
2025 OBD_CONNECT_VERSION | OBD_CONNECT_TRUNCLOCK |
2026 OBD_CONNECT_FID | OBD_CONNECT_AT |
2029 ocd.ocd_version = LUSTRE_VERSION_CODE;
2030 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, &ocd, NULL);
2032 CERROR("cannot connect to %s: rc = %d\n", osc, err);
2035 sbi->ll_lco.lco_flags = ocd.ocd_connect_flags;
2036 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
2037 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
2039 fid_zero(&sbi->ll_root_fid);
2040 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, NULL);
2042 CERROR("cannot mds_connect: rc = %d\n", err);
2043 GOTO(out_lock_cn_cb, err);
2045 if (!fid_is_sane(&sbi->ll_root_fid)) {
2046 CERROR("Invalid root fid during mount\n");
2047 GOTO(out_lock_cn_cb, err = -EINVAL);
2049 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
2051 /* fetch attr of root inode */
2052 err = md_getattr(sbi->ll_md_exp, &sbi->ll_root_fid, NULL,
2053 OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS, 0, &request);
2055 CERROR("md_getattr failed for root: rc = %d\n", err);
2056 GOTO(out_lock_cn_cb, err);
2059 err = md_get_lustre_md(sbi->ll_md_exp, request,
2060 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
2062 CERROR("failed to understand root inode md: rc = %d\n",err);
2063 GOTO(out_request, err);
2066 LASSERT(fid_is_sane(&sbi->ll_root_fid));
2068 root = llu_iget(fs, &md);
2069 if (!root || IS_ERR(root)) {
2070 CERROR("fail to generate root inode\n");
2071 GOTO(out_request, err = -EBADF);
2075 * Generate base path-node for root.
2077 rootpb = _sysio_pb_new(&noname, NULL, root);
2083 err = _sysio_do_mount(fs, rootpb, flags, tocover, mntp);
2085 _sysio_pb_gone(rootpb);
2091 ptlrpc_req_finished(request);
2093 CDEBUG(D_SUPER, "LibLustre: %s mounted successfully!\n", source);
2094 liblustre_wait_idle();
2099 _sysio_i_gone(root);
2101 ptlrpc_req_finished(request);
2103 obd_disconnect(sbi->ll_dt_exp);
2105 obd_disconnect(sbi->ll_md_exp);
2108 OBD_FREE(osc, strlen(osc) + 1);
2110 OBD_FREE(mdc, strlen(mdc) + 1);
2111 OBD_FREE(sbi, sizeof(*sbi));
2112 liblustre_wait_idle();
2116 struct fssw_ops llu_fssw_ops = {
2120 static struct inode_ops llu_inode_ops = {
2121 inop_lookup: llu_iop_lookup,
2122 inop_getattr: llu_iop_getattr,
2123 inop_setattr: llu_iop_setattr,
2124 inop_filldirentries: llu_iop_filldirentries,
2125 inop_mkdir: llu_iop_mkdir_raw,
2126 inop_rmdir: llu_iop_rmdir_raw,
2127 inop_symlink: llu_iop_symlink_raw,
2128 inop_readlink: llu_iop_readlink,
2129 inop_open: llu_iop_open,
2130 inop_close: llu_iop_close,
2131 inop_link: llu_iop_link_raw,
2132 inop_unlink: llu_iop_unlink_raw,
2133 inop_rename: llu_iop_rename_raw,
2134 inop_pos: llu_iop_pos,
2135 inop_read: llu_iop_read,
2136 inop_write: llu_iop_write,
2137 inop_iodone: llu_iop_iodone,
2138 inop_fcntl: llu_iop_fcntl,
2139 inop_sync: llu_iop_sync,
2140 inop_datasync: llu_iop_datasync,
2141 inop_ioctl: llu_iop_ioctl,
2142 inop_mknod: llu_iop_mknod_raw,
2143 #ifdef _HAVE_STATVFS
2144 inop_statvfs: llu_iop_statvfs,
2146 inop_gone: llu_iop_gone,