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/llite/llite_lib.c
38 * Lustre Light Super operations
41 #define DEBUG_SUBSYSTEM S_LLITE
43 #include <linux/module.h>
44 #include <linux/types.h>
45 #include <linux/random.h>
46 #include <linux/version.h>
49 #include <lustre_lite.h>
50 #include <lustre_ha.h>
51 #include <lustre_dlm.h>
52 #include <lprocfs_status.h>
53 #include <lustre_disk.h>
54 #include <lustre_param.h>
55 #include <lustre_log.h>
56 #include <cl_object.h>
57 #include <obd_cksum.h>
58 #include "llite_internal.h"
60 cfs_mem_cache_t *ll_file_data_slab;
62 LIST_HEAD(ll_super_blocks);
63 spinlock_t ll_sb_lock = SPIN_LOCK_UNLOCKED;
65 extern struct address_space_operations ll_aops;
66 extern struct address_space_operations ll_dir_aops;
69 #define log2(n) ffz(~(n))
72 static struct ll_sb_info *ll_init_sbi(void)
74 struct ll_sb_info *sbi = NULL;
81 OBD_ALLOC(sbi, sizeof(*sbi));
85 spin_lock_init(&sbi->ll_lock);
86 spin_lock_init(&sbi->ll_lco.lco_lock);
87 spin_lock_init(&sbi->ll_pp_extent_lock);
88 spin_lock_init(&sbi->ll_process_lock);
89 sbi->ll_rw_stats_on = 0;
92 pages = si.totalram - si.totalhigh;
93 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
94 #ifdef HAVE_BGL_SUPPORT
95 sbi->ll_async_page_max = pages / 4;
97 sbi->ll_async_page_max = pages / 2;
100 sbi->ll_async_page_max = (pages / 4) * 3;
103 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
104 SBI_DEFAULT_READAHEAD_MAX);
105 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
106 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
107 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
108 INIT_LIST_HEAD(&sbi->ll_conn_chain);
109 INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
111 ll_generate_random_uuid(uuid);
112 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
113 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
115 spin_lock(&ll_sb_lock);
116 list_add_tail(&sbi->ll_list, &ll_super_blocks);
117 spin_unlock(&ll_sb_lock);
119 #ifdef ENABLE_LLITE_CHECKSUM
120 sbi->ll_flags |= LL_SBI_CHECKSUM;
123 #ifdef HAVE_LRU_RESIZE_SUPPORT
124 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
127 #ifdef HAVE_EXPORT___IGET
128 INIT_LIST_HEAD(&sbi->ll_deathrow);
129 spin_lock_init(&sbi->ll_deathrow_lock);
131 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
132 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].pp_r_hist.oh_lock);
133 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].pp_w_hist.oh_lock);
136 /* metadata statahead is enabled by default */
137 sbi->ll_sa_max = LL_SA_RPC_DEF;
142 void ll_free_sbi(struct super_block *sb)
144 struct ll_sb_info *sbi = ll_s2sbi(sb);
148 spin_lock(&ll_sb_lock);
149 list_del(&sbi->ll_list);
150 spin_unlock(&ll_sb_lock);
151 OBD_FREE(sbi, sizeof(*sbi));
156 static struct dentry_operations ll_d_root_ops = {
157 #ifdef DCACHE_LUSTRE_INVALID
158 .d_compare = ll_dcompare,
160 .d_revalidate = ll_revalidate_nd,
163 static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
165 struct inode *root = 0;
166 struct ll_sb_info *sbi = ll_s2sbi(sb);
167 struct obd_device *obd;
168 struct obd_capa *oc = NULL;
169 struct obd_statfs osfs;
170 struct ptlrpc_request *request = NULL;
171 struct obd_connect_data *data = NULL;
172 struct obd_uuid *uuid;
173 struct lustre_md lmd;
175 int size, err, checksum;
178 obd = class_name2obd(md);
180 CERROR("MD %s: not setup or attached\n", md);
188 if (proc_lustre_fs_root) {
189 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
192 CERROR("could not register mount in /proc/fs/lustre\n");
195 /* indicate the features supported by this client */
196 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
197 OBD_CONNECT_JOIN | OBD_CONNECT_ATTRFID |
198 OBD_CONNECT_VERSION | OBD_CONNECT_MDS_CAPA |
199 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_CANCELSET|
200 OBD_CONNECT_FID | OBD_CONNECT_AT |
201 OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
204 #ifdef HAVE_LRU_RESIZE_SUPPORT
205 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
206 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
208 #ifdef CONFIG_FS_POSIX_ACL
209 data->ocd_connect_flags |= OBD_CONNECT_ACL;
211 data->ocd_ibits_known = MDS_INODELOCK_FULL;
212 data->ocd_version = LUSTRE_VERSION_CODE;
214 if (sb->s_flags & MS_RDONLY)
215 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
216 if (sbi->ll_flags & LL_SBI_USER_XATTR)
217 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
219 #ifdef HAVE_MS_FLOCK_LOCK
220 /* force vfs to use lustre handler for flock() calls - bug 10743 */
221 sb->s_flags |= MS_FLOCK_LOCK;
224 if (sbi->ll_flags & LL_SBI_FLOCK)
225 sbi->ll_fop = &ll_file_operations_flock;
226 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
227 sbi->ll_fop = &ll_file_operations;
229 sbi->ll_fop = &ll_file_operations_noflock;
232 data->ocd_connect_flags |= OBD_CONNECT_REAL;
233 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
234 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
236 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
238 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
239 "recovery, of which this client is not a "
240 "part. Please wait for recovery to complete,"
241 " abort, or time out.\n", md);
244 CERROR("cannot connect to %s: rc = %d\n", md, err);
248 err = obd_fid_init(sbi->ll_md_exp);
250 CERROR("Can't init metadata layer FID infrastructure, "
255 err = obd_statfs(obd, &osfs, cfs_time_current_64() - HZ, 0);
257 GOTO(out_md_fid, err);
259 size = sizeof(*data);
260 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
261 KEY_CONN_DATA, &size, data, NULL);
263 CERROR("Get connect data failed: %d \n", err);
267 LASSERT(osfs.os_bsize);
268 sb->s_blocksize = osfs.os_bsize;
269 sb->s_blocksize_bits = log2(osfs.os_bsize);
270 sb->s_magic = LL_SUPER_MAGIC;
272 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
273 * retval = in_file->f_op->sendfile(...);
275 * retval = -EOVERFLOW;
277 * it will check if *ppos is greater than max. However, max equals to
278 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
279 * has been defined as a signed long long ineger in linux kernel. */
280 #if BITS_PER_LONG == 64
281 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
283 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
285 sbi->ll_namelen = osfs.os_namelen;
286 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
288 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
289 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
290 LCONSOLE_INFO("Disabling user_xattr feature because "
291 "it is not supported on the server\n");
292 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
295 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
297 sb->s_flags |= MS_POSIXACL;
299 sbi->ll_flags |= LL_SBI_ACL;
301 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
303 sb->s_flags &= ~MS_POSIXACL;
305 sbi->ll_flags &= ~LL_SBI_ACL;
308 if (data->ocd_connect_flags & OBD_CONNECT_JOIN)
309 sbi->ll_flags |= LL_SBI_JOIN;
311 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
312 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
313 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
314 LCONSOLE_INFO("client is set as remote by default.\n");
317 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
318 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
319 LCONSOLE_INFO("client claims to be remote, but server "
320 "rejected, forced to be local.\n");
324 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
325 LCONSOLE_INFO("client enabled MDS capability!\n");
326 sbi->ll_flags |= LL_SBI_MDS_CAPA;
329 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
330 LCONSOLE_INFO("client enabled OSS capability!\n");
331 sbi->ll_flags |= LL_SBI_OSS_CAPA;
334 obd = class_name2obd(dt);
336 CERROR("DT %s: not setup or attached\n", dt);
337 GOTO(out_md_fid, err = -ENODEV);
340 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
341 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
342 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
343 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
344 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
345 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
346 OBD_CONNECT_GRANT_SHRINK;
348 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
349 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
350 * disabled by default, because it can still be enabled on the
351 * fly via /proc. As a consequence, we still need to come to an
352 * agreement on the supported algorithms at connect time */
353 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
355 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
356 data->ocd_cksum_types = OBD_CKSUM_ADLER;
358 /* send the list of supported checksum types */
359 data->ocd_cksum_types = OBD_CKSUM_ALL;
362 #ifdef HAVE_LRU_RESIZE_SUPPORT
363 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
365 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
366 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
368 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
369 "ocd_grant: %d\n", data->ocd_connect_flags,
370 data->ocd_version, data->ocd_grant);
372 obd->obd_upcall.onu_owner = &sbi->ll_lco;
373 obd->obd_upcall.onu_upcall = cl_ocd_update;
374 data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
376 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
378 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
379 "recovery, of which this client is not a "
380 "part. Please wait for recovery to "
381 "complete, abort, or time out.\n", dt);
382 GOTO(out_md_fid, err);
384 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
385 GOTO(out_md_fid, err);
388 err = obd_fid_init(sbi->ll_dt_exp);
390 CERROR("Can't init data layer FID infrastructure, "
395 spin_lock(&sbi->ll_lco.lco_lock);
396 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
397 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
398 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
399 spin_unlock(&sbi->ll_lco.lco_lock);
401 fid_zero(&sbi->ll_root_fid);
402 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
404 CERROR("cannot mds_connect: rc = %d\n", err);
405 GOTO(out_lock_cn_cb, err);
407 if (!fid_is_sane(&sbi->ll_root_fid)) {
408 CERROR("Invalid root fid during mount\n");
409 GOTO(out_lock_cn_cb, err = -EINVAL);
411 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
413 sb->s_op = &lustre_super_operations;
414 sb->s_export_op = &lustre_export_operations;
417 * XXX: move this to after cbd setup? */
418 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
419 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
420 valid |= OBD_MD_FLRMTPERM;
421 else if (sbi->ll_flags & LL_SBI_ACL)
422 valid |= OBD_MD_FLACL;
424 err = md_getattr(sbi->ll_md_exp, &sbi->ll_root_fid, oc, valid, 0,
429 CERROR("md_getattr failed for root: rc = %d\n", err);
430 GOTO(out_lock_cn_cb, err);
432 memset(&lmd, 0, sizeof(lmd));
433 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
434 sbi->ll_md_exp, &lmd);
436 CERROR("failed to understand root inode md: rc = %d\n", err);
437 ptlrpc_req_finished (request);
438 GOTO(out_lock_cn_cb, err);
441 LASSERT(fid_is_sane(&sbi->ll_root_fid));
442 root = ll_iget(sb, ll_fid_build_ino(sbi, &sbi->ll_root_fid), &lmd);
443 md_free_lustre_md(sbi->ll_md_exp, &lmd);
444 ptlrpc_req_finished(request);
446 if (root == NULL || IS_ERR(root)) {
448 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
449 #ifdef CONFIG_FS_POSIX_ACL
451 posix_acl_release(lmd.posix_acl);
452 lmd.posix_acl = NULL;
455 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
457 CERROR("lustre_lite: bad iget4 for root\n");
461 err = ll_close_thread_start(&sbi->ll_lcq);
463 CERROR("cannot start close thread: rc %d\n", err);
467 #ifdef CONFIG_FS_POSIX_ACL
468 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
469 rct_init(&sbi->ll_rct);
470 et_init(&sbi->ll_et);
474 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
475 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
476 KEY_CHECKSUM, sizeof(checksum), &checksum,
480 sb->s_root = d_alloc_root(root);
482 OBD_FREE(data, sizeof(*data));
484 sb->s_root->d_op = &ll_d_root_ops;
486 sbi->ll_sdev_orig = sb->s_dev;
488 /* We set sb->s_dev equal on all lustre clients in order to support
489 * NFS export clustering. NFSD requires that the FSID be the same
491 /* s_dev is also used in lt_compare() to compare two fs, but that is
492 * only a node-local comparison. */
493 uuid = obd_get_uuid(sbi->ll_md_exp);
495 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
502 obd_fid_fini(sbi->ll_dt_exp);
504 obd_disconnect(sbi->ll_dt_exp);
505 sbi->ll_dt_exp = NULL;
507 obd_fid_fini(sbi->ll_md_exp);
509 obd_disconnect(sbi->ll_md_exp);
510 sbi->ll_md_exp = NULL;
514 lprocfs_unregister_mountpoint(sbi);
518 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
522 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
524 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
525 KEY_MAX_EASIZE, &size, lmmsize, NULL);
527 CERROR("Get max mdsize error rc %d \n", rc);
532 void ll_dump_inode(struct inode *inode)
534 struct list_head *tmp;
535 int dentry_count = 0;
537 LASSERT(inode != NULL);
539 list_for_each(tmp, &inode->i_dentry)
542 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
543 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
544 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
547 void lustre_dump_dentry(struct dentry *dentry, int recur)
549 struct list_head *tmp;
552 LASSERT(dentry != NULL);
554 list_for_each(tmp, &dentry->d_subdirs)
557 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
558 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
559 dentry->d_name.len, dentry->d_name.name,
560 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
561 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
562 dentry->d_flags, dentry->d_fsdata, subdirs);
563 if (dentry->d_inode != NULL)
564 ll_dump_inode(dentry->d_inode);
569 list_for_each(tmp, &dentry->d_subdirs) {
570 struct dentry *d = list_entry(tmp, struct dentry, d_child);
571 lustre_dump_dentry(d, recur - 1);
575 #ifdef HAVE_EXPORT___IGET
576 static void prune_dir_dentries(struct inode *inode)
578 struct dentry *dentry, *prev = NULL;
580 /* due to lustre specific logic, a directory
581 * can have few dentries - a bug from VFS POV */
583 spin_lock(&dcache_lock);
584 if (!list_empty(&inode->i_dentry)) {
585 dentry = list_entry(inode->i_dentry.prev,
586 struct dentry, d_alias);
587 /* in order to prevent infinite loops we
588 * break if previous dentry is busy */
589 if (dentry != prev) {
592 spin_unlock(&dcache_lock);
594 /* try to kill all child dentries */
596 shrink_dcache_parent(dentry);
597 unlock_dentry(dentry);
600 /* now try to get rid of current dentry */
601 d_prune_aliases(inode);
605 spin_unlock(&dcache_lock);
608 static void prune_deathrow_one(struct ll_inode_info *lli)
610 struct inode *inode = ll_info2i(lli);
612 /* first, try to drop any dentries - they hold a ref on the inode */
613 if (S_ISDIR(inode->i_mode))
614 prune_dir_dentries(inode);
616 d_prune_aliases(inode);
619 /* if somebody still uses it, leave it */
620 LASSERT(atomic_read(&inode->i_count) > 0);
621 if (atomic_read(&inode->i_count) > 1)
624 CDEBUG(D_INODE, "inode %lu/%u(%d) looks a good candidate for prune\n",
625 inode->i_ino,inode->i_generation, atomic_read(&inode->i_count));
627 /* seems nobody uses it anymore */
635 static void prune_deathrow(struct ll_sb_info *sbi, int try)
637 struct ll_inode_info *lli;
641 if (need_resched() && try)
645 if (!spin_trylock(&sbi->ll_deathrow_lock))
648 spin_lock(&sbi->ll_deathrow_lock);
653 if (!list_empty(&sbi->ll_deathrow)) {
654 lli = list_entry(sbi->ll_deathrow.next,
655 struct ll_inode_info,
657 list_del_init(&lli->lli_dead_list);
658 if (!list_empty(&sbi->ll_deathrow))
661 spin_unlock(&sbi->ll_deathrow_lock);
664 prune_deathrow_one(lli);
666 } while (empty == 0);
668 #else /* !HAVE_EXPORT___IGET */
669 #define prune_deathrow(sbi, try) do {} while (0)
670 #endif /* HAVE_EXPORT___IGET */
672 void client_common_put_super(struct super_block *sb)
674 struct ll_sb_info *sbi = ll_s2sbi(sb);
677 #ifdef CONFIG_FS_POSIX_ACL
678 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
679 et_fini(&sbi->ll_et);
680 rct_fini(&sbi->ll_rct);
684 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
686 ll_close_thread_shutdown(sbi->ll_lcq);
688 /* destroy inodes in deathrow */
689 prune_deathrow(sbi, 0);
691 list_del(&sbi->ll_conn_chain);
693 obd_fid_fini(sbi->ll_dt_exp);
694 obd_disconnect(sbi->ll_dt_exp);
695 sbi->ll_dt_exp = NULL;
697 lprocfs_unregister_mountpoint(sbi);
699 obd_fid_fini(sbi->ll_md_exp);
700 obd_disconnect(sbi->ll_md_exp);
701 sbi->ll_md_exp = NULL;
706 void ll_kill_super(struct super_block *sb)
708 struct ll_sb_info *sbi;
713 if (!(sb->s_flags & MS_ACTIVE))
717 /* we need restore s_dev from changed for clustred NFS before put_super
718 * because new kernels have cached s_dev and change sb->s_dev in
719 * put_super not affected real removing devices */
721 sb->s_dev = sbi->ll_sdev_orig;
725 char *ll_read_opt(const char *opt, char *data)
731 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
732 if (strncmp(opt, data, strlen(opt)))
734 if ((value = strchr(data, '=')) == NULL)
738 OBD_ALLOC(retval, strlen(value) + 1);
740 CERROR("out of memory!\n");
744 memcpy(retval, value, strlen(value)+1);
745 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
749 static inline int ll_set_opt(const char *opt, char *data, int fl)
751 if (strncmp(opt, data, strlen(opt)) != 0)
757 /* non-client-specific mount options are parsed in lmd_parse */
758 static int ll_options(char *options, int *flags)
761 char *s1 = options, *s2;
767 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
770 CDEBUG(D_SUPER, "next opt=%s\n", s1);
771 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
776 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
781 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
786 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
791 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
796 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
801 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
803 /* Ignore deprecated mount option. The client will
804 * always try to mount with ACL support, whether this
805 * is used depends on whether server supports it. */
808 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
812 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
818 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
823 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
828 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
833 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
838 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
843 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
849 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
855 s2 = strchr(s1, ',');
863 void ll_lli_init(struct ll_inode_info *lli)
865 lli->lli_inode_magic = LLI_INODE_MAGIC;
866 sema_init(&lli->lli_size_sem, 1);
867 sema_init(&lli->lli_write_sem, 1);
869 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
870 spin_lock_init(&lli->lli_lock);
871 INIT_LIST_HEAD(&lli->lli_pending_write_llaps);
872 INIT_LIST_HEAD(&lli->lli_close_list);
873 lli->lli_inode_magic = LLI_INODE_MAGIC;
874 sema_init(&lli->lli_och_sem, 1);
875 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
876 lli->lli_mds_exec_och = NULL;
877 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
878 lli->lli_open_fd_exec_count = 0;
879 INIT_LIST_HEAD(&lli->lli_dead_list);
880 lli->lli_remote_perms = NULL;
881 lli->lli_rmtperm_utime = 0;
882 sema_init(&lli->lli_rmtperm_sem, 1);
883 INIT_LIST_HEAD(&lli->lli_oss_capas);
886 int ll_fill_super(struct super_block *sb)
888 struct lustre_profile *lprof;
889 struct lustre_sb_info *lsi = s2lsi(sb);
890 struct ll_sb_info *sbi;
891 char *dt = NULL, *md = NULL;
892 char *profilenm = get_profile_name(sb);
893 struct config_llog_instance cfg = {0, };
894 char ll_instance[sizeof(sb) * 2 + 1];
898 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
902 /* client additional sb info */
903 lsi->lsi_llsbi = sbi = ll_init_sbi();
909 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
913 /* Generate a string unique to this super, in case some joker tries
914 to mount the same fs at two mount points.
915 Use the address of the super itself.*/
916 sprintf(ll_instance, "%p", sb);
917 cfg.cfg_instance = ll_instance;
918 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
920 /* set up client obds */
921 err = lustre_process_log(sb, profilenm, &cfg);
923 CERROR("Unable to process log: %d\n", err);
927 lprof = class_get_profile(profilenm);
929 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
930 " read from the MGS. Does that filesystem "
931 "exist?\n", profilenm);
932 GOTO(out_free, err = -EINVAL);
934 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
935 lprof->lp_md, lprof->lp_dt);
937 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
938 strlen(ll_instance) + 2);
940 GOTO(out_free, err = -ENOMEM);
941 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
943 OBD_ALLOC(md, strlen(lprof->lp_md) +
944 strlen(ll_instance) + 2);
946 GOTO(out_free, err = -ENOMEM);
947 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
949 /* connections, registrations, sb setup */
950 err = client_common_fill_super(sb, md, dt);
954 OBD_FREE(md, strlen(md) + 1);
956 OBD_FREE(dt, strlen(dt) + 1);
960 LCONSOLE_WARN("Client %s has started\n", profilenm);
963 } /* ll_fill_super */
966 void lu_context_keys_dump(void);
968 void ll_put_super(struct super_block *sb)
970 struct config_llog_instance cfg;
971 char ll_instance[sizeof(sb) * 2 + 1];
972 struct obd_device *obd;
973 struct lustre_sb_info *lsi = s2lsi(sb);
974 struct ll_sb_info *sbi = ll_s2sbi(sb);
975 char *profilenm = get_profile_name(sb);
979 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
981 ll_print_capa_stat(sbi);
983 sprintf(ll_instance, "%p", sb);
984 cfg.cfg_instance = ll_instance;
985 lustre_end_log(sb, NULL, &cfg);
987 if (sbi->ll_md_exp) {
988 obd = class_exp2obd(sbi->ll_md_exp);
990 force = obd->obd_force;
993 /* We need to set force before the lov_disconnect in
994 lustre_common_put_super, since l_d cleans up osc's as well. */
997 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
999 obd->obd_force = force;
1006 /* Only if client_common_fill_super succeeded */
1007 client_common_put_super(sb);
1010 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
1011 class_manual_cleanup(obd);
1015 class_del_profile(profilenm);
1018 lsi->lsi_llsbi = NULL;
1020 lustre_common_put_super(sb);
1022 cl_env_cache_purge(~0);
1024 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
1029 } /* client_put_super */
1031 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1033 struct inode *inode = NULL;
1034 /* NOTE: we depend on atomic igrab() -bzzz */
1035 lock_res_and_lock(lock);
1036 if (lock->l_ast_data) {
1037 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1038 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1039 inode = igrab(lock->l_ast_data);
1041 inode = lock->l_ast_data;
1042 ldlm_lock_debug(NULL, inode->i_state & I_FREEING ?
1044 lock, __FILE__, __func__, __LINE__,
1045 "l_ast_data %p is bogus: magic %08x",
1046 lock->l_ast_data, lli->lli_inode_magic);
1050 unlock_res_and_lock(lock);
1054 static int null_if_equal(struct ldlm_lock *lock, void *data)
1056 if (data == lock->l_ast_data) {
1057 lock->l_ast_data = NULL;
1059 if (lock->l_req_mode != lock->l_granted_mode)
1060 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1063 return LDLM_ITER_CONTINUE;
1066 void ll_clear_inode(struct inode *inode)
1068 struct ll_inode_info *lli = ll_i2info(inode);
1069 struct ll_sb_info *sbi = ll_i2sbi(inode);
1072 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1073 inode->i_generation, inode);
1075 if (S_ISDIR(inode->i_mode)) {
1076 /* these should have been cleared in ll_file_release */
1077 LASSERT(lli->lli_sai == NULL);
1078 LASSERT(lli->lli_opendir_key == NULL);
1079 LASSERT(lli->lli_opendir_pid == 0);
1082 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1083 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1084 null_if_equal, inode);
1086 LASSERT(!lli->lli_open_fd_write_count);
1087 LASSERT(!lli->lli_open_fd_read_count);
1088 LASSERT(!lli->lli_open_fd_exec_count);
1090 if (lli->lli_mds_write_och)
1091 ll_md_real_close(inode, FMODE_WRITE);
1092 if (lli->lli_mds_exec_och)
1093 ll_md_real_close(inode, FMODE_EXEC);
1094 if (lli->lli_mds_read_och)
1095 ll_md_real_close(inode, FMODE_READ);
1097 if (lli->lli_symlink_name) {
1098 OBD_FREE(lli->lli_symlink_name,
1099 strlen(lli->lli_symlink_name) + 1);
1100 lli->lli_symlink_name = NULL;
1103 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1104 LASSERT(lli->lli_posix_acl == NULL);
1105 if (lli->lli_remote_perms) {
1106 free_rmtperm_hash(lli->lli_remote_perms);
1107 lli->lli_remote_perms = NULL;
1110 #ifdef CONFIG_FS_POSIX_ACL
1111 else if (lli->lli_posix_acl) {
1112 LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1113 LASSERT(lli->lli_remote_perms == NULL);
1114 posix_acl_release(lli->lli_posix_acl);
1115 lli->lli_posix_acl = NULL;
1118 lli->lli_inode_magic = LLI_INODE_DEAD;
1120 #ifdef HAVE_EXPORT___IGET
1121 spin_lock(&sbi->ll_deathrow_lock);
1122 list_del_init(&lli->lli_dead_list);
1123 spin_unlock(&sbi->ll_deathrow_lock);
1125 ll_clear_inode_capas(inode);
1127 * XXX This has to be done before lsm is freed below, because
1128 * cl_object still uses inode lsm.
1130 cl_inode_fini(inode);
1133 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1134 lli->lli_smd = NULL;
1141 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1142 struct md_open_data **mod)
1144 struct lustre_md md;
1145 struct ll_sb_info *sbi = ll_i2sbi(inode);
1146 struct ptlrpc_request *request = NULL;
1150 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1151 LUSTRE_OPC_ANY, NULL);
1152 if (IS_ERR(op_data))
1153 RETURN(PTR_ERR(op_data));
1155 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1158 ptlrpc_req_finished(request);
1159 if (rc == -ENOENT) {
1161 /* Unlinked special device node? Or just a race?
1162 * Pretend we done everything. */
1163 if (!S_ISREG(inode->i_mode) &&
1164 !S_ISDIR(inode->i_mode))
1165 rc = inode_setattr(inode, &op_data->op_attr);
1166 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1167 CERROR("md_setattr fails: rc = %d\n", rc);
1172 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1173 sbi->ll_md_exp, &md);
1175 ptlrpc_req_finished(request);
1179 /* We call inode_setattr to adjust timestamps.
1180 * If there is at least some data in file, we cleared ATTR_SIZE
1181 * above to avoid invoking vmtruncate, otherwise it is important
1182 * to call vmtruncate in inode_setattr to update inode->i_size
1184 rc = inode_setattr(inode, &op_data->op_attr);
1186 /* Extract epoch data if obtained. */
1187 op_data->op_handle = md.body->handle;
1188 op_data->op_ioepoch = md.body->ioepoch;
1190 ll_update_inode(inode, &md);
1191 ptlrpc_req_finished(request);
1196 /* Close IO epoch and send Size-on-MDS attribute update. */
1197 static int ll_setattr_done_writing(struct inode *inode,
1198 struct md_op_data *op_data,
1199 struct md_open_data *mod)
1201 struct ll_inode_info *lli = ll_i2info(inode);
1205 LASSERT(op_data != NULL);
1206 if (!S_ISREG(inode->i_mode))
1209 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1210 op_data->op_ioepoch, PFID(&lli->lli_fid));
1212 op_data->op_flags = MF_EPOCH_CLOSE | MF_SOM_CHANGE;
1213 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1214 if (rc == -EAGAIN) {
1215 /* MDS has instructed us to obtain Size-on-MDS attribute
1216 * from OSTs and send setattr to back to MDS. */
1217 rc = ll_sizeonmds_update(inode, &op_data->op_handle,
1218 op_data->op_ioepoch);
1220 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1226 static int ll_setattr_do_truncate(struct inode *inode, loff_t size)
1228 struct obd_capa *capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1231 rc = cl_setattr_do_truncate(inode, size, capa);
1232 ll_truncate_free_capa(capa);
1236 static int ll_setattr_ost(struct inode *inode)
1238 struct obd_capa *capa = ll_mdscapa_get(inode);
1241 rc = cl_setattr_ost(inode, capa);
1247 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1248 * object(s) determine the file size and mtime. Otherwise, the MDS will
1249 * keep these values until such a time that objects are allocated for it.
1250 * We do the MDS operations first, as it is checking permissions for us.
1251 * We don't to the MDS RPC if there is nothing that we want to store there,
1252 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1253 * going to do an RPC anyways.
1255 * If we are doing a truncate, we will send the mtime and ctime updates
1256 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1257 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1260 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1262 struct ll_inode_info *lli = ll_i2info(inode);
1263 struct lov_stripe_md *lsm = lli->lli_smd;
1264 struct md_op_data *op_data = NULL;
1265 struct md_open_data *mod = NULL;
1266 int ia_valid = attr->ia_valid;
1267 int rc = 0, rc1 = 0;
1270 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1272 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1274 if (ia_valid & ATTR_SIZE) {
1275 if (attr->ia_size > ll_file_maxbytes(inode)) {
1276 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1277 attr->ia_size, ll_file_maxbytes(inode));
1281 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1284 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1285 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1286 if (current->fsuid != inode->i_uid &&
1287 !cfs_capable(CFS_CAP_FOWNER))
1291 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1292 if (attr->ia_valid & ATTR_CTIME) {
1293 attr->ia_ctime = CURRENT_TIME;
1294 attr->ia_valid |= ATTR_CTIME_SET;
1296 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1297 attr->ia_atime = CURRENT_TIME;
1298 attr->ia_valid |= ATTR_ATIME_SET;
1300 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1301 attr->ia_mtime = CURRENT_TIME;
1302 attr->ia_valid |= ATTR_MTIME_SET;
1304 if ((attr->ia_valid & ATTR_CTIME) && !(attr->ia_valid & ATTR_MTIME)) {
1305 /* To avoid stale mtime on mds, obtain it from ost and send
1307 rc = cl_glimpse_size(inode);
1311 attr->ia_valid |= ATTR_MTIME_SET | ATTR_MTIME;
1312 attr->ia_mtime = inode->i_mtime;
1315 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1316 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1317 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1318 cfs_time_current_sec());
1320 /* NB: ATTR_SIZE will only be set after this point if the size
1321 * resides on the MDS, ie, this file has no objects. */
1323 attr->ia_valid &= ~ATTR_SIZE;
1325 /* We always do an MDS RPC, even if we're only changing the size;
1326 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1328 OBD_ALLOC_PTR(op_data);
1329 if (op_data == NULL)
1332 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1334 /* Open epoch for truncate. */
1335 if ((ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) &&
1336 (ia_valid & ATTR_SIZE))
1337 op_data->op_flags = MF_EPOCH_OPEN;
1339 rc = ll_md_setattr(inode, op_data, &mod);
1343 if (op_data->op_ioepoch)
1344 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID" for "
1345 "truncate\n", op_data->op_ioepoch, PFID(&lli->lli_fid));
1347 if (!lsm || !S_ISREG(inode->i_mode)) {
1348 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1352 if (ia_valid & ATTR_SIZE)
1353 rc = ll_setattr_do_truncate(inode, attr->ia_size);
1354 else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
1355 CDEBUG(D_INODE, "set mtime on OST inode %lu to %lu\n",
1356 inode->i_ino, LTIME_S(attr->ia_mtime));
1357 rc = ll_setattr_ost(inode);
1362 if (op_data->op_ioepoch)
1363 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1364 ll_finish_md_op_data(op_data);
1366 return rc ? rc : rc1;
1369 int ll_setattr(struct dentry *de, struct iattr *attr)
1371 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1372 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1373 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1375 if ((de->d_inode->i_mode & S_ISUID) &&
1376 !(attr->ia_mode & S_ISUID) &&
1377 !(attr->ia_valid & ATTR_KILL_SUID))
1378 attr->ia_valid |= ATTR_KILL_SUID;
1380 if (((de->d_inode->i_mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1381 !(attr->ia_mode & S_ISGID) &&
1382 !(attr->ia_valid & ATTR_KILL_SGID))
1383 attr->ia_valid |= ATTR_KILL_SGID;
1385 return ll_setattr_raw(de->d_inode, attr);
1388 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1389 __u64 max_age, __u32 flags)
1391 struct ll_sb_info *sbi = ll_s2sbi(sb);
1392 struct obd_statfs obd_osfs;
1396 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1398 CERROR("md_statfs fails: rc = %d\n", rc);
1402 osfs->os_type = sb->s_magic;
1404 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1405 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1407 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1408 flags |= OBD_STATFS_NODELAY;
1410 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1411 &obd_osfs, max_age, flags);
1413 CERROR("obd_statfs fails: rc = %d\n", rc);
1417 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1418 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1421 osfs->os_bsize = obd_osfs.os_bsize;
1422 osfs->os_blocks = obd_osfs.os_blocks;
1423 osfs->os_bfree = obd_osfs.os_bfree;
1424 osfs->os_bavail = obd_osfs.os_bavail;
1426 /* If we don't have as many objects free on the OST as inodes
1427 * on the MDS, we reduce the total number of inodes to
1428 * compensate, so that the "inodes in use" number is correct.
1430 if (obd_osfs.os_ffree < osfs->os_ffree) {
1431 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1433 osfs->os_ffree = obd_osfs.os_ffree;
1438 #ifndef HAVE_STATFS_DENTRY_PARAM
1439 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1442 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1444 struct super_block *sb = de->d_sb;
1446 struct obd_statfs osfs;
1449 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1450 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1452 /* For now we will always get up-to-date statfs values, but in the
1453 * future we may allow some amount of caching on the client (e.g.
1454 * from QOS or lprocfs updates). */
1455 rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - 1, 0);
1459 statfs_unpack(sfs, &osfs);
1461 /* We need to downshift for all 32-bit kernels, because we can't
1462 * tell if the kernel is being called via sys_statfs64() or not.
1463 * Stop before overflowing f_bsize - in which case it is better
1464 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1465 if (sizeof(long) < 8) {
1466 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1469 osfs.os_blocks >>= 1;
1470 osfs.os_bfree >>= 1;
1471 osfs.os_bavail >>= 1;
1475 sfs->f_blocks = osfs.os_blocks;
1476 sfs->f_bfree = osfs.os_bfree;
1477 sfs->f_bavail = osfs.os_bavail;
1482 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1484 struct ll_inode_info *lli;
1485 struct lov_stripe_md *lsm;
1487 lli = ll_i2info(inode);
1488 LASSERT(lli->lli_size_sem_owner != current);
1489 down(&lli->lli_size_sem);
1490 LASSERT(lli->lli_size_sem_owner == NULL);
1491 lli->lli_size_sem_owner = current;
1493 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1496 lov_stripe_lock(lsm);
1499 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1501 struct ll_inode_info *lli;
1502 struct lov_stripe_md *lsm;
1504 lli = ll_i2info(inode);
1506 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1509 lov_stripe_unlock(lsm);
1510 LASSERT(lli->lli_size_sem_owner == current);
1511 lli->lli_size_sem_owner = NULL;
1512 up(&lli->lli_size_sem);
1515 static void ll_replace_lsm(struct inode *inode, struct lov_stripe_md *lsm)
1517 struct ll_inode_info *lli = ll_i2info(inode);
1519 dump_lsm(D_INODE, lsm);
1520 dump_lsm(D_INODE, lli->lli_smd);
1521 LASSERTF(lsm->lsm_magic == LOV_MAGIC_JOIN,
1522 "lsm must be joined lsm %p\n", lsm);
1523 obd_free_memmd(ll_i2dtexp(inode), &lli->lli_smd);
1524 CDEBUG(D_INODE, "replace lsm %p to lli_smd %p for inode %lu%u(%p)\n",
1525 lsm, lli->lli_smd, inode->i_ino, inode->i_generation, inode);
1527 lli->lli_maxbytes = lsm->lsm_maxbytes;
1528 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1529 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1532 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1534 struct ll_inode_info *lli = ll_i2info(inode);
1535 struct mdt_body *body = md->body;
1536 struct lov_stripe_md *lsm = md->lsm;
1537 struct ll_sb_info *sbi = ll_i2sbi(inode);
1539 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1541 if (lli->lli_smd == NULL) {
1542 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1543 lsm->lsm_magic != LOV_MAGIC_V3 &&
1544 lsm->lsm_magic != LOV_MAGIC_JOIN) {
1545 dump_lsm(D_ERROR, lsm);
1548 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1549 lsm, inode->i_ino, inode->i_generation, inode);
1550 cl_inode_init(inode, md);
1551 /* ll_inode_size_lock() requires it is only
1552 * called with lli_smd != NULL or lock_lsm == 0
1553 * or we can race between lock/unlock.
1556 lli->lli_maxbytes = lsm->lsm_maxbytes;
1557 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1558 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1560 if (lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1561 lli->lli_smd->lsm_stripe_count ==
1562 lsm->lsm_stripe_count) {
1563 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1564 CERROR("lsm mismatch for inode %ld\n",
1566 CERROR("lli_smd:\n");
1567 dump_lsm(D_ERROR, lli->lli_smd);
1569 dump_lsm(D_ERROR, lsm);
1573 cl_inode_init(inode, md);
1574 ll_replace_lsm(inode, lsm);
1577 if (lli->lli_smd != lsm)
1578 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1581 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1582 if (body->valid & OBD_MD_FLRMTPERM)
1583 ll_update_remote_perm(inode, md->remote_perm);
1585 #ifdef CONFIG_FS_POSIX_ACL
1586 else if (body->valid & OBD_MD_FLACL) {
1587 spin_lock(&lli->lli_lock);
1588 if (lli->lli_posix_acl)
1589 posix_acl_release(lli->lli_posix_acl);
1590 lli->lli_posix_acl = md->posix_acl;
1591 spin_unlock(&lli->lli_lock);
1594 inode->i_ino = ll_fid_build_ino(sbi, &body->fid1);
1595 inode->i_generation = ll_fid_build_gen(sbi, &body->fid1);
1597 if (body->valid & OBD_MD_FLATIME &&
1598 body->atime > LTIME_S(inode->i_atime))
1599 LTIME_S(inode->i_atime) = body->atime;
1601 /* mtime is always updated with ctime, but can be set in past.
1602 As write and utime(2) may happen within 1 second, and utime's
1603 mtime has a priority over write's one, so take mtime from mds
1604 for the same ctimes. */
1605 if (body->valid & OBD_MD_FLCTIME &&
1606 body->ctime >= LTIME_S(inode->i_ctime)) {
1607 LTIME_S(inode->i_ctime) = body->ctime;
1608 if (body->valid & OBD_MD_FLMTIME) {
1609 CDEBUG(D_INODE, "setting ino %lu mtime "
1610 "from %lu to "LPU64"\n", inode->i_ino,
1611 LTIME_S(inode->i_mtime), body->mtime);
1612 LTIME_S(inode->i_mtime) = body->mtime;
1615 if (body->valid & OBD_MD_FLMODE)
1616 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1617 if (body->valid & OBD_MD_FLTYPE)
1618 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1619 LASSERT(inode->i_mode != 0);
1620 if (S_ISREG(inode->i_mode)) {
1621 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1623 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1625 #ifdef HAVE_INODE_BLKSIZE
1626 inode->i_blksize = 1<<inode->i_blkbits;
1628 if (body->valid & OBD_MD_FLUID)
1629 inode->i_uid = body->uid;
1630 if (body->valid & OBD_MD_FLGID)
1631 inode->i_gid = body->gid;
1632 if (body->valid & OBD_MD_FLFLAGS)
1633 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1634 if (body->valid & OBD_MD_FLNLINK)
1635 inode->i_nlink = body->nlink;
1636 if (body->valid & OBD_MD_FLRDEV)
1637 inode->i_rdev = old_decode_dev(body->rdev);
1639 if (body->valid & OBD_MD_FLID) {
1640 /* FID shouldn't be changed! */
1641 if (fid_is_sane(&lli->lli_fid)) {
1642 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1643 "Trying to change FID "DFID
1644 " to the "DFID", inode %lu/%u(%p)\n",
1645 PFID(&lli->lli_fid), PFID(&body->fid1),
1646 inode->i_ino, inode->i_generation, inode);
1648 lli->lli_fid = body->fid1;
1651 LASSERT(fid_seq(&lli->lli_fid) != 0);
1653 if (body->valid & OBD_MD_FLSIZE) {
1654 if ((ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) &&
1655 S_ISREG(inode->i_mode) && lli->lli_smd) {
1656 struct lustre_handle lockh;
1659 /* As it is possible a blocking ast has been processed
1660 * by this time, we need to check there is an UPDATE
1661 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1663 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1666 if (lli->lli_flags & (LLIF_DONE_WRITING |
1667 LLIF_EPOCH_PENDING |
1669 CERROR("ino %lu flags %lu still has "
1670 "size authority! do not trust "
1671 "the size got from MDS\n",
1672 inode->i_ino, lli->lli_flags);
1674 /* Use old size assignment to avoid
1675 * deadlock bz14138 & bz14326 */
1676 inode->i_size = body->size;
1677 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1679 ldlm_lock_decref(&lockh, mode);
1682 /* Use old size assignment to avoid
1683 * deadlock bz14138 & bz14326 */
1684 inode->i_size = body->size;
1687 if (body->valid & OBD_MD_FLBLOCKS)
1688 inode->i_blocks = body->blocks;
1691 if (body->valid & OBD_MD_FLMDSCAPA) {
1692 LASSERT(md->mds_capa);
1693 ll_add_capa(inode, md->mds_capa);
1695 if (body->valid & OBD_MD_FLOSSCAPA) {
1696 LASSERT(md->oss_capa);
1697 ll_add_capa(inode, md->oss_capa);
1701 static struct backing_dev_info ll_backing_dev_info = {
1702 .ra_pages = 0, /* No readahead */
1703 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
1704 .capabilities = 0, /* Does contribute to dirty memory */
1706 .memory_backed = 0, /* Does contribute to dirty memory */
1710 void ll_read_inode2(struct inode *inode, void *opaque)
1712 struct lustre_md *md = opaque;
1713 struct ll_inode_info *lli = ll_i2info(inode);
1716 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1717 inode->i_ino, inode->i_generation, inode);
1721 LASSERT(!lli->lli_smd);
1723 /* Core attributes from the MDS first. This is a new inode, and
1724 * the VFS doesn't zero times in the core inode so we have to do
1725 * it ourselves. They will be overwritten by either MDS or OST
1726 * attributes - we just need to make sure they aren't newer. */
1727 LTIME_S(inode->i_mtime) = 0;
1728 LTIME_S(inode->i_atime) = 0;
1729 LTIME_S(inode->i_ctime) = 0;
1731 ll_update_inode(inode, md);
1733 /* OIDEBUG(inode); */
1735 if (S_ISREG(inode->i_mode)) {
1736 struct ll_sb_info *sbi = ll_i2sbi(inode);
1737 inode->i_op = &ll_file_inode_operations;
1738 inode->i_fop = sbi->ll_fop;
1739 inode->i_mapping->a_ops = &ll_aops;
1741 } else if (S_ISDIR(inode->i_mode)) {
1742 inode->i_op = &ll_dir_inode_operations;
1743 inode->i_fop = &ll_dir_operations;
1744 inode->i_mapping->a_ops = &ll_dir_aops;
1746 } else if (S_ISLNK(inode->i_mode)) {
1747 inode->i_op = &ll_fast_symlink_inode_operations;
1750 inode->i_op = &ll_special_inode_operations;
1752 init_special_inode(inode, inode->i_mode,
1753 kdev_t_to_nr(inode->i_rdev));
1755 /* initializing backing dev info. */
1756 inode->i_mapping->backing_dev_info = &ll_backing_dev_info;
1762 void ll_delete_inode(struct inode *inode)
1764 struct ll_sb_info *sbi = ll_i2sbi(inode);
1768 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1770 CERROR("fid_delete() failed, rc %d\n", rc);
1772 truncate_inode_pages(&inode->i_data, 0);
1778 int ll_iocontrol(struct inode *inode, struct file *file,
1779 unsigned int cmd, unsigned long arg)
1781 struct ll_sb_info *sbi = ll_i2sbi(inode);
1782 struct ptlrpc_request *req = NULL;
1787 case EXT3_IOC_GETFLAGS: {
1788 struct mdt_body *body;
1789 struct obd_capa *oc;
1791 oc = ll_mdscapa_get(inode);
1792 rc = md_getattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
1793 OBD_MD_FLFLAGS, 0, &req);
1796 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1800 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1802 flags = body->flags;
1804 ptlrpc_req_finished(req);
1806 RETURN(put_user(flags, (int *)arg));
1808 case EXT3_IOC_SETFLAGS: {
1809 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1810 struct obd_info oinfo = { { { 0 } } };
1811 struct md_op_data *op_data;
1813 if (get_user(flags, (int *)arg))
1817 OBDO_ALLOC(oinfo.oi_oa);
1821 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1822 LUSTRE_OPC_ANY, NULL);
1823 if (IS_ERR(op_data))
1824 RETURN(PTR_ERR(op_data));
1826 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1827 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1828 rc = md_setattr(sbi->ll_md_exp, op_data,
1829 NULL, 0, NULL, 0, &req, NULL);
1830 ll_finish_md_op_data(op_data);
1831 ptlrpc_req_finished(req);
1832 if (rc || lsm == NULL) {
1833 OBDO_FREE(oinfo.oi_oa);
1837 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1838 oinfo.oi_oa->o_gr = lsm->lsm_object_gr;
1839 oinfo.oi_oa->o_flags = flags;
1840 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1842 oinfo.oi_capa = ll_mdscapa_get(inode);
1844 obdo_from_inode(oinfo.oi_oa, inode,
1845 OBD_MD_FLFID | OBD_MD_FLGENER);
1846 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1847 capa_put(oinfo.oi_capa);
1848 OBDO_FREE(oinfo.oi_oa);
1850 if (rc != -EPERM && rc != -EACCES)
1851 CERROR("md_setattr_async fails: rc = %d\n", rc);
1855 inode->i_flags = ll_ext_to_inode_flags(flags |
1856 MDS_BFLAG_EXT_FLAGS);
1866 int ll_flush_ctx(struct inode *inode)
1868 struct ll_sb_info *sbi = ll_i2sbi(inode);
1870 CDEBUG(D_SEC, "flush context for user %d\n", current->uid);
1872 obd_set_info_async(sbi->ll_md_exp,
1873 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1875 obd_set_info_async(sbi->ll_dt_exp,
1876 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1881 /* umount -f client means force down, don't save state */
1882 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1883 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1885 struct super_block *sb = vfsmnt->mnt_sb;
1887 void ll_umount_begin(struct super_block *sb)
1890 struct lustre_sb_info *lsi = s2lsi(sb);
1891 struct ll_sb_info *sbi = ll_s2sbi(sb);
1892 struct obd_device *obd;
1893 struct obd_ioctl_data ioc_data = { 0 };
1896 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1897 if (!(flags & MNT_FORCE)) {
1903 /* Tell the MGC we got umount -f */
1904 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1906 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1907 sb->s_count, atomic_read(&sb->s_active));
1909 obd = class_exp2obd(sbi->ll_md_exp);
1911 CERROR("Invalid MDC connection handle "LPX64"\n",
1912 sbi->ll_md_exp->exp_handle.h_cookie);
1917 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, sizeof ioc_data,
1920 obd = class_exp2obd(sbi->ll_dt_exp);
1922 CERROR("Invalid LOV connection handle "LPX64"\n",
1923 sbi->ll_dt_exp->exp_handle.h_cookie);
1929 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, sizeof ioc_data,
1932 /* Really, we'd like to wait until there are no requests outstanding,
1933 * and then continue. For now, we just invalidate the requests,
1934 * schedule() and sleep one second if needed, and hope.
1937 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1938 if (atomic_read(&vfsmnt->mnt_count) > 2) {
1939 cfs_schedule_timeout(CFS_TASK_INTERRUPTIBLE,
1940 cfs_time_seconds(1));
1941 if (atomic_read(&vfsmnt->mnt_count) > 2)
1942 LCONSOLE_WARN("Mount still busy with %d refs! You "
1943 "may try to umount it a bit later\n",
1944 atomic_read(&vfsmnt->mnt_count));
1951 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1953 struct ll_sb_info *sbi = ll_s2sbi(sb);
1957 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
1958 read_only = *flags & MS_RDONLY;
1959 err = obd_set_info_async(sbi->ll_md_exp,
1960 sizeof(KEY_READ_ONLY),
1961 KEY_READ_ONLY, sizeof(read_only),
1964 CERROR("Failed to change the read-only flag during "
1965 "remount: %d\n", err);
1970 sb->s_flags |= MS_RDONLY;
1972 sb->s_flags &= ~MS_RDONLY;
1977 int ll_prep_inode(struct inode **inode,
1978 struct ptlrpc_request *req,
1979 struct super_block *sb)
1981 struct ll_sb_info *sbi = NULL;
1982 struct lustre_md md;
1986 LASSERT(*inode || sb);
1987 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
1988 prune_deathrow(sbi, 1);
1989 memset(&md, 0, sizeof(struct lustre_md));
1991 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
1992 sbi->ll_md_exp, &md);
1997 ll_update_inode(*inode, &md);
1999 LASSERT(sb != NULL);
2002 * At this point server returns to client's same fid as client
2003 * generated for creating. So using ->fid1 is okay here.
2005 LASSERT(fid_is_sane(&md.body->fid1));
2007 *inode = ll_iget(sb, ll_fid_build_ino(sbi, &md.body->fid1),&md);
2008 if (*inode == NULL || IS_ERR(*inode)) {
2010 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2011 #ifdef CONFIG_FS_POSIX_ACL
2013 posix_acl_release(md.posix_acl);
2014 md.posix_acl = NULL;
2017 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
2019 CERROR("new_inode -fatal: rc %d\n", rc);
2024 rc = obd_checkmd(sbi->ll_dt_exp, sbi->ll_md_exp,
2025 ll_i2info(*inode)->lli_smd);
2027 md_free_lustre_md(sbi->ll_md_exp, &md);
2031 int ll_obd_statfs(struct inode *inode, void *arg)
2033 struct ll_sb_info *sbi = NULL;
2034 struct obd_export *exp;
2036 struct obd_ioctl_data *data = NULL;
2040 if (!inode || !(sbi = ll_i2sbi(inode)))
2041 GOTO(out_statfs, rc = -EINVAL);
2043 rc = obd_ioctl_getdata(&buf, &len, arg);
2045 GOTO(out_statfs, rc);
2048 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2049 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2050 GOTO(out_statfs, rc = -EINVAL);
2052 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2053 if (type == LL_STATFS_MDC)
2054 exp = sbi->ll_md_exp;
2055 else if (type == LL_STATFS_LOV)
2056 exp = sbi->ll_dt_exp;
2058 GOTO(out_statfs, rc = -ENODEV);
2060 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2062 GOTO(out_statfs, rc);
2065 obd_ioctl_freedata(buf, len);
2069 int ll_process_config(struct lustre_cfg *lcfg)
2073 struct lprocfs_static_vars lvars;
2077 lprocfs_llite_init_vars(&lvars);
2079 /* The instance name contains the sb: lustre-client-aacfe000 */
2080 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2081 if (!ptr || !*(++ptr))
2083 if (sscanf(ptr, "%lx", &x) != 1)
2086 /* This better be a real Lustre superblock! */
2087 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2089 /* Note we have not called client_common_fill_super yet, so
2090 proc fns must be able to handle that! */
2091 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2098 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2099 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2100 struct inode *i1, struct inode *i2,
2101 const char *name, int namelen,
2102 int mode, __u32 opc, void *data)
2104 LASSERT(i1 != NULL);
2106 if (namelen > ll_i2sbi(i1)->ll_namelen)
2107 return ERR_PTR(-ENAMETOOLONG);
2109 if (op_data == NULL)
2110 OBD_ALLOC_PTR(op_data);
2112 if (op_data == NULL)
2113 return ERR_PTR(-ENOMEM);
2115 ll_i2gids(op_data->op_suppgids, i1, i2);
2116 op_data->op_fid1 = *ll_inode2fid(i1);
2117 op_data->op_capa1 = ll_mdscapa_get(i1);
2120 op_data->op_fid2 = *ll_inode2fid(i2);
2121 op_data->op_capa2 = ll_mdscapa_get(i2);
2123 fid_zero(&op_data->op_fid2);
2124 op_data->op_capa2 = NULL;
2127 op_data->op_name = name;
2128 op_data->op_namelen = namelen;
2129 op_data->op_mode = mode;
2130 op_data->op_mod_time = cfs_time_current_sec();
2131 op_data->op_fsuid = current->fsuid;
2132 op_data->op_fsgid = current->fsgid;
2133 op_data->op_cap = cfs_curproc_cap_pack();
2134 op_data->op_bias = MDS_CHECK_SPLIT;
2135 op_data->op_opc = opc;
2136 op_data->op_mds = 0;
2137 op_data->op_data = data;
2142 void ll_finish_md_op_data(struct md_op_data *op_data)
2144 capa_put(op_data->op_capa1);
2145 capa_put(op_data->op_capa2);
2146 OBD_FREE_PTR(op_data);
2149 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2151 struct ll_sb_info *sbi;
2153 LASSERT((seq != NULL) && (vfs != NULL));
2154 sbi = ll_s2sbi(vfs->mnt_sb);
2156 if (sbi->ll_flags & LL_SBI_NOLCK)
2157 seq_puts(seq, ",nolock");
2159 if (sbi->ll_flags & LL_SBI_FLOCK)
2160 seq_puts(seq, ",flock");
2162 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2163 seq_puts(seq, ",localflock");
2165 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2166 seq_puts(seq, ",user_xattr");
2168 if (sbi->ll_flags & LL_SBI_ACL)
2169 seq_puts(seq, ",acl");
2171 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2172 seq_puts(seq, ",lazystatfs");