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 (c) 2003, 2010, Oracle and/or its affiliates. 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/version.h>
48 #include <lustre_lite.h>
49 #include <lustre_ha.h>
50 #include <lustre_dlm.h>
51 #include <lprocfs_status.h>
52 #include <lustre_disk.h>
53 #include <lustre_param.h>
54 #include <lustre_log.h>
55 #include <cl_object.h>
56 #include <obd_cksum.h>
57 #include "llite_internal.h"
59 cfs_mem_cache_t *ll_file_data_slab;
61 CFS_LIST_HEAD(ll_super_blocks);
62 cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
64 extern struct address_space_operations ll_aops;
65 extern struct address_space_operations ll_dir_aops;
68 #define log2(n) cfs_ffz(~(n))
71 static struct ll_sb_info *ll_init_sbi(void)
73 struct ll_sb_info *sbi = NULL;
80 OBD_ALLOC(sbi, sizeof(*sbi));
84 cfs_spin_lock_init(&sbi->ll_lock);
85 cfs_init_mutex(&sbi->ll_lco.lco_lock);
86 cfs_spin_lock_init(&sbi->ll_pp_extent_lock);
87 cfs_spin_lock_init(&sbi->ll_process_lock);
88 sbi->ll_rw_stats_on = 0;
91 pages = si.totalram - si.totalhigh;
92 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
93 #ifdef HAVE_BGL_SUPPORT
94 sbi->ll_async_page_max = pages / 4;
96 sbi->ll_async_page_max = pages / 2;
99 sbi->ll_async_page_max = (pages / 4) * 3;
102 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
103 SBI_DEFAULT_READAHEAD_MAX);
104 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
105 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
106 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
107 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
108 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
110 ll_generate_random_uuid(uuid);
111 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
112 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
114 cfs_spin_lock(&ll_sb_lock);
115 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
116 cfs_spin_unlock(&ll_sb_lock);
118 #ifdef ENABLE_CHECKSUM
119 sbi->ll_flags |= LL_SBI_CHECKSUM;
122 #ifdef HAVE_LRU_RESIZE_SUPPORT
123 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
126 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
127 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
129 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
133 /* metadata statahead is enabled by default */
134 sbi->ll_sa_max = LL_SA_RPC_DEF;
135 atomic_set(&sbi->ll_sa_total, 0);
136 atomic_set(&sbi->ll_sa_wrong, 0);
141 void ll_free_sbi(struct super_block *sb)
143 struct ll_sb_info *sbi = ll_s2sbi(sb);
147 cfs_spin_lock(&ll_sb_lock);
148 cfs_list_del(&sbi->ll_list);
149 cfs_spin_unlock(&ll_sb_lock);
150 OBD_FREE(sbi, sizeof(*sbi));
155 static struct dentry_operations ll_d_root_ops = {
156 .d_compare = ll_dcompare,
157 .d_revalidate = ll_revalidate_nd,
160 static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
162 struct inode *root = 0;
163 struct ll_sb_info *sbi = ll_s2sbi(sb);
164 struct obd_device *obd;
165 struct obd_capa *oc = NULL;
166 struct obd_statfs osfs;
167 struct ptlrpc_request *request = NULL;
168 struct obd_connect_data *data = NULL;
169 struct obd_uuid *uuid;
170 struct md_op_data *op_data;
171 struct lustre_md lmd;
173 int size, err, checksum;
176 obd = class_name2obd(md);
178 CERROR("MD %s: not setup or attached\n", md);
186 if (proc_lustre_fs_root) {
187 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
190 CERROR("could not register mount in /proc/fs/lustre\n");
193 /* indicate the features supported by this client */
194 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
195 OBD_CONNECT_JOIN | OBD_CONNECT_ATTRFID |
196 OBD_CONNECT_VERSION | OBD_CONNECT_MDS_CAPA |
197 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_CANCELSET|
198 OBD_CONNECT_FID | OBD_CONNECT_AT |
199 OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
200 OBD_CONNECT_VBR | OBD_CONNECT_FULL20;
202 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
203 data->ocd_connect_flags |= OBD_CONNECT_SOM;
205 #ifdef HAVE_LRU_RESIZE_SUPPORT
206 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
207 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
209 #ifdef CONFIG_FS_POSIX_ACL
210 data->ocd_connect_flags |= OBD_CONNECT_ACL;
212 data->ocd_ibits_known = MDS_INODELOCK_FULL;
213 data->ocd_version = LUSTRE_VERSION_CODE;
215 if (sb->s_flags & MS_RDONLY)
216 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
217 if (sbi->ll_flags & LL_SBI_USER_XATTR)
218 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
220 #ifdef HAVE_MS_FLOCK_LOCK
221 /* force vfs to use lustre handler for flock() calls - bug 10743 */
222 sb->s_flags |= MS_FLOCK_LOCK;
225 if (sbi->ll_flags & LL_SBI_FLOCK)
226 sbi->ll_fop = &ll_file_operations_flock;
227 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
228 sbi->ll_fop = &ll_file_operations;
230 sbi->ll_fop = &ll_file_operations_noflock;
233 data->ocd_connect_flags |= OBD_CONNECT_REAL;
234 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
235 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
237 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
239 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
240 "recovery, of which this client is not a "
241 "part. Please wait for recovery to complete,"
242 " abort, or time out.\n", md);
245 CERROR("cannot connect to %s: rc = %d\n", md, err);
249 err = obd_fid_init(sbi->ll_md_exp);
251 CERROR("Can't init metadata layer FID infrastructure, "
256 err = obd_statfs(obd, &osfs,
257 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
259 GOTO(out_md_fid, err);
261 size = sizeof(*data);
262 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
263 KEY_CONN_DATA, &size, data, NULL);
265 CERROR("Get connect data failed: %d \n", err);
269 LASSERT(osfs.os_bsize);
270 sb->s_blocksize = osfs.os_bsize;
271 sb->s_blocksize_bits = log2(osfs.os_bsize);
272 sb->s_magic = LL_SUPER_MAGIC;
274 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
275 * retval = in_file->f_op->sendfile(...);
277 * retval = -EOVERFLOW;
279 * it will check if *ppos is greater than max. However, max equals to
280 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
281 * has been defined as a signed long long integer in linux kernel. */
282 #if BITS_PER_LONG == 64
283 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
285 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
287 sbi->ll_namelen = osfs.os_namelen;
288 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
290 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
291 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
292 LCONSOLE_INFO("Disabling user_xattr feature because "
293 "it is not supported on the server\n");
294 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
297 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
299 sb->s_flags |= MS_POSIXACL;
301 sbi->ll_flags |= LL_SBI_ACL;
303 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
305 sb->s_flags &= ~MS_POSIXACL;
307 sbi->ll_flags &= ~LL_SBI_ACL;
310 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
311 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
312 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
313 LCONSOLE_INFO("client is set as remote by default.\n");
316 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
317 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
318 LCONSOLE_INFO("client claims to be remote, but server "
319 "rejected, forced to be local.\n");
323 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
324 LCONSOLE_INFO("client enabled MDS capability!\n");
325 sbi->ll_flags |= LL_SBI_MDS_CAPA;
328 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
329 LCONSOLE_INFO("client enabled OSS capability!\n");
330 sbi->ll_flags |= LL_SBI_OSS_CAPA;
333 obd = class_name2obd(dt);
335 CERROR("DT %s: not setup or attached\n", dt);
336 GOTO(out_md_fid, err = -ENODEV);
339 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
340 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
341 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
342 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
343 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
344 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
347 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
348 data->ocd_connect_flags |= OBD_CONNECT_SOM;
350 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
351 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
352 * disabled by default, because it can still be enabled on the
353 * fly via /proc. As a consequence, we still need to come to an
354 * agreement on the supported algorithms at connect time */
355 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
357 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
358 data->ocd_cksum_types = OBD_CKSUM_ADLER;
360 /* send the list of supported checksum types */
361 data->ocd_cksum_types = OBD_CKSUM_ALL;
364 #ifdef HAVE_LRU_RESIZE_SUPPORT
365 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
367 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
368 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
370 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
371 "ocd_grant: %d\n", data->ocd_connect_flags,
372 data->ocd_version, data->ocd_grant);
374 obd->obd_upcall.onu_owner = &sbi->ll_lco;
375 obd->obd_upcall.onu_upcall = cl_ocd_update;
376 data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
378 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
380 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
381 "recovery, of which this client is not a "
382 "part. Please wait for recovery to "
383 "complete, abort, or time out.\n", dt);
384 GOTO(out_md_fid, err);
386 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
387 GOTO(out_md_fid, err);
390 err = obd_fid_init(sbi->ll_dt_exp);
392 CERROR("Can't init data layer FID infrastructure, "
397 cfs_mutex_down(&sbi->ll_lco.lco_lock);
398 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
399 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
400 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
401 cfs_mutex_up(&sbi->ll_lco.lco_lock);
403 fid_zero(&sbi->ll_root_fid);
404 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
406 CERROR("cannot mds_connect: rc = %d\n", err);
407 GOTO(out_lock_cn_cb, err);
409 if (!fid_is_sane(&sbi->ll_root_fid)) {
410 CERROR("Invalid root fid during mount\n");
411 GOTO(out_lock_cn_cb, err = -EINVAL);
413 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
415 sb->s_op = &lustre_super_operations;
416 #if THREAD_SIZE >= 8192
417 sb->s_export_op = &lustre_export_operations;
421 * XXX: move this to after cbd setup? */
422 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
423 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
424 valid |= OBD_MD_FLRMTPERM;
425 else if (sbi->ll_flags & LL_SBI_ACL)
426 valid |= OBD_MD_FLACL;
428 OBD_ALLOC_PTR(op_data);
430 GOTO(out_lock_cn_cb, err = -ENOMEM);
432 op_data->op_fid1 = sbi->ll_root_fid;
433 op_data->op_mode = 0;
434 op_data->op_capa1 = oc;
435 op_data->op_valid = valid;
437 err = md_getattr(sbi->ll_md_exp, op_data, &request);
440 OBD_FREE_PTR(op_data);
442 CERROR("md_getattr failed for root: rc = %d\n", err);
443 GOTO(out_lock_cn_cb, err);
445 memset(&lmd, 0, sizeof(lmd));
446 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
447 sbi->ll_md_exp, &lmd);
449 CERROR("failed to understand root inode md: rc = %d\n", err);
450 ptlrpc_req_finished (request);
451 GOTO(out_lock_cn_cb, err);
454 LASSERT(fid_is_sane(&sbi->ll_root_fid));
455 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid), &lmd);
456 md_free_lustre_md(sbi->ll_md_exp, &lmd);
457 ptlrpc_req_finished(request);
459 if (root == NULL || IS_ERR(root)) {
461 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
462 #ifdef CONFIG_FS_POSIX_ACL
464 posix_acl_release(lmd.posix_acl);
465 lmd.posix_acl = NULL;
468 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
470 CERROR("lustre_lite: bad iget4 for root\n");
474 err = ll_close_thread_start(&sbi->ll_lcq);
476 CERROR("cannot start close thread: rc %d\n", err);
480 #ifdef CONFIG_FS_POSIX_ACL
481 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
482 rct_init(&sbi->ll_rct);
483 et_init(&sbi->ll_et);
487 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
488 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
489 KEY_CHECKSUM, sizeof(checksum), &checksum,
493 sb->s_root = d_alloc_root(root);
495 OBD_FREE(data, sizeof(*data));
497 sb->s_root->d_op = &ll_d_root_ops;
499 sbi->ll_sdev_orig = sb->s_dev;
501 /* We set sb->s_dev equal on all lustre clients in order to support
502 * NFS export clustering. NFSD requires that the FSID be the same
504 /* s_dev is also used in lt_compare() to compare two fs, but that is
505 * only a node-local comparison. */
506 uuid = obd_get_uuid(sbi->ll_md_exp);
508 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
515 obd_fid_fini(sbi->ll_dt_exp);
517 obd_disconnect(sbi->ll_dt_exp);
518 sbi->ll_dt_exp = NULL;
520 obd_fid_fini(sbi->ll_md_exp);
522 obd_disconnect(sbi->ll_md_exp);
523 sbi->ll_md_exp = NULL;
527 lprocfs_unregister_mountpoint(sbi);
531 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
535 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
537 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
538 KEY_MAX_EASIZE, &size, lmmsize, NULL);
540 CERROR("Get max mdsize error rc %d \n", rc);
545 void ll_dump_inode(struct inode *inode)
547 struct list_head *tmp;
548 int dentry_count = 0;
550 LASSERT(inode != NULL);
552 list_for_each(tmp, &inode->i_dentry)
555 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
556 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
557 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
560 void lustre_dump_dentry(struct dentry *dentry, int recur)
562 struct list_head *tmp;
565 LASSERT(dentry != NULL);
567 list_for_each(tmp, &dentry->d_subdirs)
570 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
571 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
572 dentry->d_name.len, dentry->d_name.name,
573 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
574 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
575 dentry->d_flags, dentry->d_fsdata, subdirs);
576 if (dentry->d_inode != NULL)
577 ll_dump_inode(dentry->d_inode);
582 list_for_each(tmp, &dentry->d_subdirs) {
583 struct dentry *d = list_entry(tmp, struct dentry, d_child);
584 lustre_dump_dentry(d, recur - 1);
588 void client_common_put_super(struct super_block *sb)
590 struct ll_sb_info *sbi = ll_s2sbi(sb);
593 #ifdef CONFIG_FS_POSIX_ACL
594 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
595 et_fini(&sbi->ll_et);
596 rct_fini(&sbi->ll_rct);
600 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
602 ll_close_thread_shutdown(sbi->ll_lcq);
606 cfs_list_del(&sbi->ll_conn_chain);
608 obd_fid_fini(sbi->ll_dt_exp);
609 obd_disconnect(sbi->ll_dt_exp);
610 sbi->ll_dt_exp = NULL;
612 lprocfs_unregister_mountpoint(sbi);
614 obd_fid_fini(sbi->ll_md_exp);
615 obd_disconnect(sbi->ll_md_exp);
616 sbi->ll_md_exp = NULL;
621 void ll_kill_super(struct super_block *sb)
623 struct ll_sb_info *sbi;
628 if (!(sb->s_flags & MS_ACTIVE))
632 /* we need restore s_dev from changed for clustred NFS before put_super
633 * because new kernels have cached s_dev and change sb->s_dev in
634 * put_super not affected real removing devices */
636 sb->s_dev = sbi->ll_sdev_orig;
640 char *ll_read_opt(const char *opt, char *data)
646 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
647 if (strncmp(opt, data, strlen(opt)))
649 if ((value = strchr(data, '=')) == NULL)
653 OBD_ALLOC(retval, strlen(value) + 1);
655 CERROR("out of memory!\n");
659 memcpy(retval, value, strlen(value)+1);
660 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
664 static inline int ll_set_opt(const char *opt, char *data, int fl)
666 if (strncmp(opt, data, strlen(opt)) != 0)
672 /* non-client-specific mount options are parsed in lmd_parse */
673 static int ll_options(char *options, int *flags)
676 char *s1 = options, *s2;
682 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
685 CDEBUG(D_SUPER, "next opt=%s\n", s1);
686 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
691 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
696 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
701 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
706 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
711 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
716 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
717 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
719 /* Ignore deprecated mount option. The client will
720 * always try to mount with ACL support, whether this
721 * is used depends on whether server supports it. */
722 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
723 "mount option 'acl'.\n");
726 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
728 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
729 "mount option 'noacl'.\n");
733 #warning "{no}acl options have been deprecated since 1.8, please remove them"
735 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
741 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
746 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
751 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
756 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
761 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
766 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
771 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
776 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
782 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
788 s2 = strchr(s1, ',');
796 void ll_lli_init(struct ll_inode_info *lli)
798 lli->lli_inode_magic = LLI_INODE_MAGIC;
799 cfs_sema_init(&lli->lli_size_sem, 1);
800 cfs_sema_init(&lli->lli_write_sem, 1);
801 cfs_init_rwsem(&lli->lli_trunc_sem);
803 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
804 cfs_spin_lock_init(&lli->lli_lock);
805 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
806 lli->lli_inode_magic = LLI_INODE_MAGIC;
807 cfs_sema_init(&lli->lli_och_sem, 1);
808 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
809 lli->lli_mds_exec_och = NULL;
810 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
811 lli->lli_open_fd_exec_count = 0;
812 CFS_INIT_LIST_HEAD(&lli->lli_dead_list);
813 lli->lli_remote_perms = NULL;
814 lli->lli_rmtperm_utime = 0;
815 cfs_sema_init(&lli->lli_rmtperm_sem, 1);
816 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
817 cfs_spin_lock_init(&lli->lli_sa_lock);
818 cfs_sema_init(&lli->lli_readdir_sem, 1);
821 #ifdef HAVE_NEW_BACKING_DEV_INFO
822 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
825 int ll_fill_super(struct super_block *sb)
827 struct lustre_profile *lprof;
828 struct lustre_sb_info *lsi = s2lsi(sb);
829 struct ll_sb_info *sbi;
830 char *dt = NULL, *md = NULL;
831 char *profilenm = get_profile_name(sb);
832 struct config_llog_instance cfg = {0, };
833 char ll_instance[sizeof(sb) * 2 + 1];
837 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
841 /* client additional sb info */
842 lsi->lsi_llsbi = sbi = ll_init_sbi();
844 cfs_module_put(THIS_MODULE);
848 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
852 err = ll_bdi_init(&lsi->bdi);
856 #ifdef HAVE_NEW_BACKING_DEV_INFO
857 lsi->bdi.name = "lustre";
858 lsi->bdi.capabilities = BDI_CAP_MAP_COPY;
859 err = bdi_register(&lsi->bdi, NULL, "lustre-%d",
860 atomic_inc_return(&ll_bdi_num));
861 sb->s_bdi = &lsi->bdi;
864 /* Generate a string unique to this super, in case some joker tries
865 to mount the same fs at two mount points.
866 Use the address of the super itself.*/
867 sprintf(ll_instance, "%p", sb);
868 cfg.cfg_instance = ll_instance;
869 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
871 /* set up client obds */
872 err = lustre_process_log(sb, profilenm, &cfg);
874 CERROR("Unable to process log: %d\n", err);
878 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
879 lprof = class_get_profile(profilenm);
881 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
882 " read from the MGS. Does that filesystem "
883 "exist?\n", profilenm);
884 GOTO(out_free, err = -EINVAL);
886 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
887 lprof->lp_md, lprof->lp_dt);
889 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
890 strlen(ll_instance) + 2);
892 GOTO(out_free, err = -ENOMEM);
893 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
895 OBD_ALLOC(md, strlen(lprof->lp_md) +
896 strlen(ll_instance) + 2);
898 GOTO(out_free, err = -ENOMEM);
899 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
901 /* connections, registrations, sb setup */
902 err = client_common_fill_super(sb, md, dt);
906 OBD_FREE(md, strlen(md) + 1);
908 OBD_FREE(dt, strlen(dt) + 1);
912 LCONSOLE_WARN("Client %s has started\n", profilenm);
915 } /* ll_fill_super */
918 void lu_context_keys_dump(void);
920 void ll_put_super(struct super_block *sb)
922 struct config_llog_instance cfg;
923 char ll_instance[sizeof(sb) * 2 + 1];
924 struct obd_device *obd;
925 struct lustre_sb_info *lsi = s2lsi(sb);
926 struct ll_sb_info *sbi = ll_s2sbi(sb);
927 char *profilenm = get_profile_name(sb);
931 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
933 ll_print_capa_stat(sbi);
935 sprintf(ll_instance, "%p", sb);
936 cfg.cfg_instance = ll_instance;
937 lustre_end_log(sb, NULL, &cfg);
939 if (sbi->ll_md_exp) {
940 obd = class_exp2obd(sbi->ll_md_exp);
942 force = obd->obd_force;
945 /* We need to set force before the lov_disconnect in
946 lustre_common_put_super, since l_d cleans up osc's as well. */
949 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
951 obd->obd_force = force;
956 /* Only if client_common_fill_super succeeded */
957 client_common_put_super(sb);
961 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
962 class_manual_cleanup(obd);
966 class_del_profile(profilenm);
968 if (ll_bdi_wb_cnt(lsi->bdi) > 0)
969 ll_bdi_destroy(&lsi->bdi);
972 lsi->lsi_llsbi = NULL;
974 lustre_common_put_super(sb);
976 cl_env_cache_purge(~0);
978 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
980 cfs_module_put(THIS_MODULE);
983 } /* client_put_super */
985 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
987 struct inode *inode = NULL;
988 /* NOTE: we depend on atomic igrab() -bzzz */
989 lock_res_and_lock(lock);
990 if (lock->l_ast_data) {
991 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
992 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
993 inode = igrab(lock->l_ast_data);
995 inode = lock->l_ast_data;
996 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
997 D_WARNING, lock, "l_ast_data %p is "
998 "bogus: magic %08x", lock->l_ast_data,
999 lli->lli_inode_magic);
1003 unlock_res_and_lock(lock);
1007 static int null_if_equal(struct ldlm_lock *lock, void *data)
1009 if (data == lock->l_ast_data) {
1010 lock->l_ast_data = NULL;
1012 if (lock->l_req_mode != lock->l_granted_mode)
1013 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1016 return LDLM_ITER_CONTINUE;
1019 void ll_clear_inode(struct inode *inode)
1021 struct ll_inode_info *lli = ll_i2info(inode);
1022 struct ll_sb_info *sbi = ll_i2sbi(inode);
1025 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1026 inode->i_generation, inode);
1028 if (S_ISDIR(inode->i_mode)) {
1029 /* these should have been cleared in ll_file_release */
1030 LASSERT(lli->lli_sai == NULL);
1031 LASSERT(lli->lli_opendir_key == NULL);
1032 LASSERT(lli->lli_opendir_pid == 0);
1035 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1036 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1037 null_if_equal, inode);
1039 LASSERT(!lli->lli_open_fd_write_count);
1040 LASSERT(!lli->lli_open_fd_read_count);
1041 LASSERT(!lli->lli_open_fd_exec_count);
1043 if (lli->lli_mds_write_och)
1044 ll_md_real_close(inode, FMODE_WRITE);
1045 if (lli->lli_mds_exec_och)
1046 ll_md_real_close(inode, FMODE_EXEC);
1047 if (lli->lli_mds_read_och)
1048 ll_md_real_close(inode, FMODE_READ);
1050 if (lli->lli_symlink_name) {
1051 OBD_FREE(lli->lli_symlink_name,
1052 strlen(lli->lli_symlink_name) + 1);
1053 lli->lli_symlink_name = NULL;
1056 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1057 LASSERT(lli->lli_posix_acl == NULL);
1058 if (lli->lli_remote_perms) {
1059 free_rmtperm_hash(lli->lli_remote_perms);
1060 lli->lli_remote_perms = NULL;
1063 #ifdef CONFIG_FS_POSIX_ACL
1064 else if (lli->lli_posix_acl) {
1065 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1066 LASSERT(lli->lli_remote_perms == NULL);
1067 posix_acl_release(lli->lli_posix_acl);
1068 lli->lli_posix_acl = NULL;
1071 lli->lli_inode_magic = LLI_INODE_DEAD;
1073 ll_clear_inode_capas(inode);
1075 * XXX This has to be done before lsm is freed below, because
1076 * cl_object still uses inode lsm.
1078 cl_inode_fini(inode);
1081 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1082 lli->lli_smd = NULL;
1089 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1090 struct md_open_data **mod)
1092 struct lustre_md md;
1093 struct ll_sb_info *sbi = ll_i2sbi(inode);
1094 struct ptlrpc_request *request = NULL;
1098 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1099 LUSTRE_OPC_ANY, NULL);
1100 if (IS_ERR(op_data))
1101 RETURN(PTR_ERR(op_data));
1103 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1106 ptlrpc_req_finished(request);
1107 if (rc == -ENOENT) {
1109 /* Unlinked special device node? Or just a race?
1110 * Pretend we done everything. */
1111 if (!S_ISREG(inode->i_mode) &&
1112 !S_ISDIR(inode->i_mode))
1113 rc = inode_setattr(inode, &op_data->op_attr);
1114 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1115 CERROR("md_setattr fails: rc = %d\n", rc);
1120 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1121 sbi->ll_md_exp, &md);
1123 ptlrpc_req_finished(request);
1127 /* We call inode_setattr to adjust timestamps.
1128 * If there is at least some data in file, we cleared ATTR_SIZE
1129 * above to avoid invoking vmtruncate, otherwise it is important
1130 * to call vmtruncate in inode_setattr to update inode->i_size
1132 rc = inode_setattr(inode, &op_data->op_attr);
1134 /* Extract epoch data if obtained. */
1135 op_data->op_handle = md.body->handle;
1136 op_data->op_ioepoch = md.body->ioepoch;
1138 ll_update_inode(inode, &md);
1139 ptlrpc_req_finished(request);
1144 /* Close IO epoch and send Size-on-MDS attribute update. */
1145 static int ll_setattr_done_writing(struct inode *inode,
1146 struct md_op_data *op_data,
1147 struct md_open_data *mod)
1149 struct ll_inode_info *lli = ll_i2info(inode);
1153 LASSERT(op_data != NULL);
1154 if (!S_ISREG(inode->i_mode))
1157 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1158 op_data->op_ioepoch, PFID(&lli->lli_fid));
1160 op_data->op_flags = MF_EPOCH_CLOSE;
1161 ll_done_writing_attr(inode, op_data);
1162 ll_pack_inode2opdata(inode, op_data, NULL);
1164 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1165 if (rc == -EAGAIN) {
1166 /* MDS has instructed us to obtain Size-on-MDS attribute
1167 * from OSTs and send setattr to back to MDS. */
1168 rc = ll_som_update(inode, op_data);
1170 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1176 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1178 struct obd_capa *capa;
1181 if (attr->ia_valid & ATTR_SIZE)
1182 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1184 capa = ll_mdscapa_get(inode);
1186 rc = cl_setattr_ost(inode, attr, capa);
1188 if (attr->ia_valid & ATTR_SIZE)
1189 ll_truncate_free_capa(capa);
1196 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1197 * object(s) determine the file size and mtime. Otherwise, the MDS will
1198 * keep these values until such a time that objects are allocated for it.
1199 * We do the MDS operations first, as it is checking permissions for us.
1200 * We don't to the MDS RPC if there is nothing that we want to store there,
1201 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1202 * going to do an RPC anyways.
1204 * If we are doing a truncate, we will send the mtime and ctime updates
1205 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1206 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1209 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1211 struct ll_inode_info *lli = ll_i2info(inode);
1212 struct lov_stripe_md *lsm = lli->lli_smd;
1213 struct md_op_data *op_data = NULL;
1214 struct md_open_data *mod = NULL;
1215 int ia_valid = attr->ia_valid;
1216 int rc = 0, rc1 = 0;
1219 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1221 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1223 if (ia_valid & ATTR_SIZE) {
1224 if (attr->ia_size > ll_file_maxbytes(inode)) {
1225 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1226 attr->ia_size, ll_file_maxbytes(inode));
1230 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1233 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1234 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1235 if (cfs_curproc_fsuid() != inode->i_uid &&
1236 !cfs_capable(CFS_CAP_FOWNER))
1240 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1241 if (attr->ia_valid & ATTR_CTIME) {
1242 attr->ia_ctime = CFS_CURRENT_TIME;
1243 attr->ia_valid |= ATTR_CTIME_SET;
1245 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1246 attr->ia_atime = CFS_CURRENT_TIME;
1247 attr->ia_valid |= ATTR_ATIME_SET;
1249 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1250 attr->ia_mtime = CFS_CURRENT_TIME;
1251 attr->ia_valid |= ATTR_MTIME_SET;
1254 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1255 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1256 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1257 cfs_time_current_sec());
1259 /* NB: ATTR_SIZE will only be set after this point if the size
1260 * resides on the MDS, ie, this file has no objects. */
1262 attr->ia_valid &= ~ATTR_SIZE;
1264 /* We always do an MDS RPC, even if we're only changing the size;
1265 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1267 OBD_ALLOC_PTR(op_data);
1268 if (op_data == NULL)
1271 UNLOCK_INODE_MUTEX(inode);
1272 if (ia_valid & ATTR_SIZE)
1273 UP_WRITE_I_ALLOC_SEM(inode);
1274 cfs_down_write(&lli->lli_trunc_sem);
1275 LOCK_INODE_MUTEX(inode);
1276 if (ia_valid & ATTR_SIZE)
1277 DOWN_WRITE_I_ALLOC_SEM(inode);
1279 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1281 /* Open epoch for truncate. */
1282 if (exp_connect_som(ll_i2mdexp(inode)) &&
1283 (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1284 op_data->op_flags = MF_EPOCH_OPEN;
1286 rc = ll_md_setattr(inode, op_data, &mod);
1290 ll_ioepoch_open(lli, op_data->op_ioepoch);
1291 if (!lsm || !S_ISREG(inode->i_mode)) {
1292 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1296 if (ia_valid & ATTR_SIZE)
1297 attr->ia_valid |= ATTR_SIZE;
1298 if (ia_valid & (ATTR_SIZE |
1299 ATTR_ATIME | ATTR_ATIME_SET |
1300 ATTR_MTIME | ATTR_MTIME_SET))
1301 /* on truncate and utimes send attributes to osts, setting
1302 * mtime/atime to past will be performed under PW 0:EOF extent
1303 * lock (new_size:EOF for truncate)
1304 * it may seem excessive to send mtime/atime updates to osts
1305 * when not setting times to past, but it is necessary due to
1306 * possible time de-synchronization */
1307 rc = ll_setattr_ost(inode, attr);
1311 if (op_data->op_ioepoch)
1312 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1313 ll_finish_md_op_data(op_data);
1315 cfs_up_write(&lli->lli_trunc_sem);
1316 return rc ? rc : rc1;
1319 int ll_setattr(struct dentry *de, struct iattr *attr)
1321 int mode = de->d_inode->i_mode;
1323 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1324 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1325 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1327 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1328 (ATTR_SIZE|ATTR_MODE)) &&
1329 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1330 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1331 !(attr->ia_mode & S_ISGID))))
1332 attr->ia_valid |= ATTR_FORCE;
1334 if ((mode & S_ISUID) &&
1335 !(attr->ia_mode & S_ISUID) &&
1336 !(attr->ia_valid & ATTR_KILL_SUID))
1337 attr->ia_valid |= ATTR_KILL_SUID;
1339 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1340 !(attr->ia_mode & S_ISGID) &&
1341 !(attr->ia_valid & ATTR_KILL_SGID))
1342 attr->ia_valid |= ATTR_KILL_SGID;
1344 return ll_setattr_raw(de->d_inode, attr);
1347 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1348 __u64 max_age, __u32 flags)
1350 struct ll_sb_info *sbi = ll_s2sbi(sb);
1351 struct obd_statfs obd_osfs;
1355 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1357 CERROR("md_statfs fails: rc = %d\n", rc);
1361 osfs->os_type = sb->s_magic;
1363 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1364 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1366 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1367 flags |= OBD_STATFS_NODELAY;
1369 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1370 &obd_osfs, max_age, flags);
1372 CERROR("obd_statfs fails: rc = %d\n", rc);
1376 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1377 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1380 osfs->os_bsize = obd_osfs.os_bsize;
1381 osfs->os_blocks = obd_osfs.os_blocks;
1382 osfs->os_bfree = obd_osfs.os_bfree;
1383 osfs->os_bavail = obd_osfs.os_bavail;
1385 /* If we don't have as many objects free on the OST as inodes
1386 * on the MDS, we reduce the total number of inodes to
1387 * compensate, so that the "inodes in use" number is correct.
1389 if (obd_osfs.os_ffree < osfs->os_ffree) {
1390 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1392 osfs->os_ffree = obd_osfs.os_ffree;
1397 #ifndef HAVE_STATFS_DENTRY_PARAM
1398 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1401 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1403 struct super_block *sb = de->d_sb;
1405 struct obd_statfs osfs;
1408 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1409 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1411 /* Some amount of caching on the client is allowed */
1412 rc = ll_statfs_internal(sb, &osfs,
1413 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1418 statfs_unpack(sfs, &osfs);
1420 /* We need to downshift for all 32-bit kernels, because we can't
1421 * tell if the kernel is being called via sys_statfs64() or not.
1422 * Stop before overflowing f_bsize - in which case it is better
1423 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1424 if (sizeof(long) < 8) {
1425 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1428 osfs.os_blocks >>= 1;
1429 osfs.os_bfree >>= 1;
1430 osfs.os_bavail >>= 1;
1434 sfs->f_blocks = osfs.os_blocks;
1435 sfs->f_bfree = osfs.os_bfree;
1436 sfs->f_bavail = osfs.os_bavail;
1441 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1443 struct ll_inode_info *lli;
1444 struct lov_stripe_md *lsm;
1446 lli = ll_i2info(inode);
1447 LASSERT(lli->lli_size_sem_owner != current);
1448 cfs_down(&lli->lli_size_sem);
1449 LASSERT(lli->lli_size_sem_owner == NULL);
1450 lli->lli_size_sem_owner = current;
1452 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1455 lov_stripe_lock(lsm);
1458 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1460 struct ll_inode_info *lli;
1461 struct lov_stripe_md *lsm;
1463 lli = ll_i2info(inode);
1465 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1468 lov_stripe_unlock(lsm);
1469 LASSERT(lli->lli_size_sem_owner == current);
1470 lli->lli_size_sem_owner = NULL;
1471 cfs_up(&lli->lli_size_sem);
1474 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1476 struct ll_inode_info *lli = ll_i2info(inode);
1477 struct mdt_body *body = md->body;
1478 struct lov_stripe_md *lsm = md->lsm;
1479 struct ll_sb_info *sbi = ll_i2sbi(inode);
1481 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1483 cfs_down(&lli->lli_och_sem);
1484 if (lli->lli_smd == NULL) {
1485 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1486 lsm->lsm_magic != LOV_MAGIC_V3) {
1487 dump_lsm(D_ERROR, lsm);
1490 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1491 lsm, inode->i_ino, inode->i_generation, inode);
1492 /* cl_inode_init must go before lli_smd or a race is
1493 * possible where client thinks the file has stripes,
1494 * but lov raid0 is not setup yet and parallel e.g.
1495 * glimpse would try to use uninitialized lov */
1496 cl_inode_init(inode, md);
1498 cfs_up(&lli->lli_och_sem);
1499 lli->lli_maxbytes = lsm->lsm_maxbytes;
1500 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1501 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1503 cfs_up(&lli->lli_och_sem);
1504 LASSERT(lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1505 lli->lli_smd->lsm_stripe_count ==
1506 lsm->lsm_stripe_count);
1507 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1508 CERROR("lsm mismatch for inode %ld\n",
1510 CERROR("lli_smd:\n");
1511 dump_lsm(D_ERROR, lli->lli_smd);
1513 dump_lsm(D_ERROR, lsm);
1517 if (lli->lli_smd != lsm)
1518 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1521 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1522 if (body->valid & OBD_MD_FLRMTPERM)
1523 ll_update_remote_perm(inode, md->remote_perm);
1525 #ifdef CONFIG_FS_POSIX_ACL
1526 else if (body->valid & OBD_MD_FLACL) {
1527 cfs_spin_lock(&lli->lli_lock);
1528 if (lli->lli_posix_acl)
1529 posix_acl_release(lli->lli_posix_acl);
1530 lli->lli_posix_acl = md->posix_acl;
1531 cfs_spin_unlock(&lli->lli_lock);
1534 inode->i_ino = cl_fid_build_ino(&body->fid1);
1535 inode->i_generation = cl_fid_build_gen(&body->fid1);
1537 if (body->valid & OBD_MD_FLATIME) {
1538 if (body->atime > LTIME_S(inode->i_atime))
1539 LTIME_S(inode->i_atime) = body->atime;
1540 lli->lli_lvb.lvb_atime = body->atime;
1542 if (body->valid & OBD_MD_FLMTIME) {
1543 if (body->mtime > LTIME_S(inode->i_mtime)) {
1544 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1545 "to "LPU64"\n", inode->i_ino,
1546 LTIME_S(inode->i_mtime), body->mtime);
1547 LTIME_S(inode->i_mtime) = body->mtime;
1549 lli->lli_lvb.lvb_mtime = body->mtime;
1551 if (body->valid & OBD_MD_FLCTIME) {
1552 if (body->ctime > LTIME_S(inode->i_ctime))
1553 LTIME_S(inode->i_ctime) = body->ctime;
1554 lli->lli_lvb.lvb_ctime = body->ctime;
1556 if (body->valid & OBD_MD_FLMODE)
1557 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1558 if (body->valid & OBD_MD_FLTYPE)
1559 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1560 LASSERT(inode->i_mode != 0);
1561 if (S_ISREG(inode->i_mode)) {
1562 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1564 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1566 #ifdef HAVE_INODE_BLKSIZE
1567 inode->i_blksize = 1<<inode->i_blkbits;
1569 if (body->valid & OBD_MD_FLUID)
1570 inode->i_uid = body->uid;
1571 if (body->valid & OBD_MD_FLGID)
1572 inode->i_gid = body->gid;
1573 if (body->valid & OBD_MD_FLFLAGS)
1574 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1575 if (body->valid & OBD_MD_FLNLINK)
1576 inode->i_nlink = body->nlink;
1577 if (body->valid & OBD_MD_FLRDEV)
1578 inode->i_rdev = old_decode_dev(body->rdev);
1580 if (body->valid & OBD_MD_FLID) {
1581 /* FID shouldn't be changed! */
1582 if (fid_is_sane(&lli->lli_fid)) {
1583 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1584 "Trying to change FID "DFID
1585 " to the "DFID", inode %lu/%u(%p)\n",
1586 PFID(&lli->lli_fid), PFID(&body->fid1),
1587 inode->i_ino, inode->i_generation, inode);
1589 lli->lli_fid = body->fid1;
1592 LASSERT(fid_seq(&lli->lli_fid) != 0);
1594 if (body->valid & OBD_MD_FLSIZE) {
1595 if (exp_connect_som(ll_i2mdexp(inode)) &&
1596 S_ISREG(inode->i_mode) && lli->lli_smd) {
1597 struct lustre_handle lockh;
1600 /* As it is possible a blocking ast has been processed
1601 * by this time, we need to check there is an UPDATE
1602 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1604 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1607 if (lli->lli_flags & (LLIF_DONE_WRITING |
1608 LLIF_EPOCH_PENDING |
1610 CERROR("ino %lu flags %lu still has "
1611 "size authority! do not trust "
1612 "the size got from MDS\n",
1613 inode->i_ino, lli->lli_flags);
1615 /* Use old size assignment to avoid
1616 * deadlock bz14138 & bz14326 */
1617 inode->i_size = body->size;
1618 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1620 ldlm_lock_decref(&lockh, mode);
1623 /* Use old size assignment to avoid
1624 * deadlock bz14138 & bz14326 */
1625 inode->i_size = body->size;
1627 CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
1628 inode->i_ino, (unsigned long long)body->size);
1631 if (body->valid & OBD_MD_FLBLOCKS)
1632 inode->i_blocks = body->blocks;
1635 if (body->valid & OBD_MD_FLMDSCAPA) {
1636 LASSERT(md->mds_capa);
1637 ll_add_capa(inode, md->mds_capa);
1639 if (body->valid & OBD_MD_FLOSSCAPA) {
1640 LASSERT(md->oss_capa);
1641 ll_add_capa(inode, md->oss_capa);
1645 void ll_read_inode2(struct inode *inode, void *opaque)
1647 struct lustre_md *md = opaque;
1648 struct ll_inode_info *lli = ll_i2info(inode);
1651 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1652 inode->i_ino, inode->i_generation, inode);
1656 LASSERT(!lli->lli_smd);
1658 /* Core attributes from the MDS first. This is a new inode, and
1659 * the VFS doesn't zero times in the core inode so we have to do
1660 * it ourselves. They will be overwritten by either MDS or OST
1661 * attributes - we just need to make sure they aren't newer. */
1662 LTIME_S(inode->i_mtime) = 0;
1663 LTIME_S(inode->i_atime) = 0;
1664 LTIME_S(inode->i_ctime) = 0;
1666 ll_update_inode(inode, md);
1668 /* OIDEBUG(inode); */
1670 /* initializing backing dev info. */
1671 inode->i_mapping->backing_dev_info = &(s2lsi(inode->i_sb)->bdi);
1674 if (S_ISREG(inode->i_mode)) {
1675 struct ll_sb_info *sbi = ll_i2sbi(inode);
1676 inode->i_op = &ll_file_inode_operations;
1677 inode->i_fop = sbi->ll_fop;
1678 inode->i_mapping->a_ops = &ll_aops;
1680 } else if (S_ISDIR(inode->i_mode)) {
1681 inode->i_op = &ll_dir_inode_operations;
1682 inode->i_fop = &ll_dir_operations;
1683 inode->i_mapping->a_ops = &ll_dir_aops;
1685 } else if (S_ISLNK(inode->i_mode)) {
1686 inode->i_op = &ll_fast_symlink_inode_operations;
1689 inode->i_op = &ll_special_inode_operations;
1691 init_special_inode(inode, inode->i_mode,
1692 kdev_t_to_nr(inode->i_rdev));
1698 void ll_delete_inode(struct inode *inode)
1700 struct ll_sb_info *sbi = ll_i2sbi(inode);
1704 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1706 CERROR("fid_delete() failed, rc %d\n", rc);
1708 truncate_inode_pages(&inode->i_data, 0);
1714 int ll_iocontrol(struct inode *inode, struct file *file,
1715 unsigned int cmd, unsigned long arg)
1717 struct ll_sb_info *sbi = ll_i2sbi(inode);
1718 struct ptlrpc_request *req = NULL;
1723 case FSFILT_IOC_GETFLAGS: {
1724 struct mdt_body *body;
1725 struct md_op_data *op_data;
1727 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
1728 0, 0, LUSTRE_OPC_ANY,
1730 if (op_data == NULL)
1733 op_data->op_valid = OBD_MD_FLFLAGS;
1734 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
1735 ll_finish_md_op_data(op_data);
1737 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1741 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1743 flags = body->flags;
1745 ptlrpc_req_finished(req);
1747 RETURN(put_user(flags, (int *)arg));
1749 case FSFILT_IOC_SETFLAGS: {
1750 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1751 struct obd_info oinfo = { { { 0 } } };
1752 struct md_op_data *op_data;
1754 if (get_user(flags, (int *)arg))
1758 OBDO_ALLOC(oinfo.oi_oa);
1762 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1763 LUSTRE_OPC_ANY, NULL);
1764 if (IS_ERR(op_data))
1765 RETURN(PTR_ERR(op_data));
1767 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1768 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1769 rc = md_setattr(sbi->ll_md_exp, op_data,
1770 NULL, 0, NULL, 0, &req, NULL);
1771 ll_finish_md_op_data(op_data);
1772 ptlrpc_req_finished(req);
1774 OBDO_FREE(oinfo.oi_oa);
1779 OBDO_FREE(oinfo.oi_oa);
1780 GOTO(update_cache, rc);
1783 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1784 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
1785 oinfo.oi_oa->o_flags = flags;
1786 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1788 oinfo.oi_capa = ll_mdscapa_get(inode);
1789 obdo_from_inode(oinfo.oi_oa, inode,
1790 &ll_i2info(inode)->lli_fid, 0);
1791 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1792 capa_put(oinfo.oi_capa);
1793 OBDO_FREE(oinfo.oi_oa);
1795 if (rc != -EPERM && rc != -EACCES)
1796 CERROR("osc_setattr_async fails: rc = %d\n",rc);
1802 inode->i_flags = ll_ext_to_inode_flags(flags);
1812 int ll_flush_ctx(struct inode *inode)
1814 struct ll_sb_info *sbi = ll_i2sbi(inode);
1816 CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
1818 obd_set_info_async(sbi->ll_md_exp,
1819 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1821 obd_set_info_async(sbi->ll_dt_exp,
1822 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1827 /* umount -f client means force down, don't save state */
1828 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1829 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1831 struct super_block *sb = vfsmnt->mnt_sb;
1833 void ll_umount_begin(struct super_block *sb)
1836 struct lustre_sb_info *lsi = s2lsi(sb);
1837 struct ll_sb_info *sbi = ll_s2sbi(sb);
1838 struct obd_device *obd;
1839 struct obd_ioctl_data *ioc_data;
1842 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1843 if (!(flags & MNT_FORCE)) {
1849 /* Tell the MGC we got umount -f */
1850 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1852 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1853 sb->s_count, atomic_read(&sb->s_active));
1855 obd = class_exp2obd(sbi->ll_md_exp);
1857 CERROR("Invalid MDC connection handle "LPX64"\n",
1858 sbi->ll_md_exp->exp_handle.h_cookie);
1864 obd = class_exp2obd(sbi->ll_dt_exp);
1866 CERROR("Invalid LOV connection handle "LPX64"\n",
1867 sbi->ll_dt_exp->exp_handle.h_cookie);
1873 OBD_ALLOC_PTR(ioc_data);
1875 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
1876 sizeof ioc_data, ioc_data, NULL);
1878 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
1879 sizeof ioc_data, ioc_data, NULL);
1881 OBD_FREE_PTR(ioc_data);
1885 /* Really, we'd like to wait until there are no requests outstanding,
1886 * and then continue. For now, we just invalidate the requests,
1887 * schedule() and sleep one second if needed, and hope.
1890 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1891 if (atomic_read(&vfsmnt->mnt_count) > 2) {
1892 cfs_schedule_timeout_and_set_state(CFS_TASK_INTERRUPTIBLE,
1893 cfs_time_seconds(1));
1894 if (atomic_read(&vfsmnt->mnt_count) > 2)
1895 LCONSOLE_WARN("Mount still busy with %d refs! You "
1896 "may try to umount it a bit later\n",
1897 atomic_read(&vfsmnt->mnt_count));
1904 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1906 struct ll_sb_info *sbi = ll_s2sbi(sb);
1910 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
1911 read_only = *flags & MS_RDONLY;
1912 err = obd_set_info_async(sbi->ll_md_exp,
1913 sizeof(KEY_READ_ONLY),
1914 KEY_READ_ONLY, sizeof(read_only),
1917 CERROR("Failed to change the read-only flag during "
1918 "remount: %d\n", err);
1923 sb->s_flags |= MS_RDONLY;
1925 sb->s_flags &= ~MS_RDONLY;
1930 int ll_prep_inode(struct inode **inode,
1931 struct ptlrpc_request *req,
1932 struct super_block *sb)
1934 struct ll_sb_info *sbi = NULL;
1935 struct lustre_md md;
1939 LASSERT(*inode || sb);
1940 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
1941 memset(&md, 0, sizeof(struct lustre_md));
1943 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
1944 sbi->ll_md_exp, &md);
1949 ll_update_inode(*inode, &md);
1951 LASSERT(sb != NULL);
1954 * At this point server returns to client's same fid as client
1955 * generated for creating. So using ->fid1 is okay here.
1957 LASSERT(fid_is_sane(&md.body->fid1));
1959 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1), &md);
1960 if (*inode == NULL || IS_ERR(*inode)) {
1962 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
1963 #ifdef CONFIG_FS_POSIX_ACL
1965 posix_acl_release(md.posix_acl);
1966 md.posix_acl = NULL;
1969 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
1971 CERROR("new_inode -fatal: rc %d\n", rc);
1977 md_free_lustre_md(sbi->ll_md_exp, &md);
1981 int ll_obd_statfs(struct inode *inode, void *arg)
1983 struct ll_sb_info *sbi = NULL;
1984 struct obd_export *exp;
1986 struct obd_ioctl_data *data = NULL;
1990 if (!inode || !(sbi = ll_i2sbi(inode)))
1991 GOTO(out_statfs, rc = -EINVAL);
1993 rc = obd_ioctl_getdata(&buf, &len, arg);
1995 GOTO(out_statfs, rc);
1998 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
1999 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2000 GOTO(out_statfs, rc = -EINVAL);
2002 if (data->ioc_inllen1 != sizeof(__u32) ||
2003 data->ioc_inllen2 != sizeof(__u32) ||
2004 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2005 data->ioc_plen2 != sizeof(struct obd_uuid))
2006 GOTO(out_statfs, rc = -EINVAL);
2008 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2009 if (type == LL_STATFS_MDC)
2010 exp = sbi->ll_md_exp;
2011 else if (type == LL_STATFS_LOV)
2012 exp = sbi->ll_dt_exp;
2014 GOTO(out_statfs, rc = -ENODEV);
2016 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2018 GOTO(out_statfs, rc);
2021 obd_ioctl_freedata(buf, len);
2025 int ll_process_config(struct lustre_cfg *lcfg)
2029 struct lprocfs_static_vars lvars;
2033 lprocfs_llite_init_vars(&lvars);
2035 /* The instance name contains the sb: lustre-client-aacfe000 */
2036 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2037 if (!ptr || !*(++ptr))
2039 if (sscanf(ptr, "%lx", &x) != 1)
2042 /* This better be a real Lustre superblock! */
2043 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2045 /* Note we have not called client_common_fill_super yet, so
2046 proc fns must be able to handle that! */
2047 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2054 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2055 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2056 struct inode *i1, struct inode *i2,
2057 const char *name, int namelen,
2058 int mode, __u32 opc, void *data)
2060 LASSERT(i1 != NULL);
2062 if (namelen > ll_i2sbi(i1)->ll_namelen)
2063 return ERR_PTR(-ENAMETOOLONG);
2065 if (op_data == NULL)
2066 OBD_ALLOC_PTR(op_data);
2068 if (op_data == NULL)
2069 return ERR_PTR(-ENOMEM);
2071 ll_i2gids(op_data->op_suppgids, i1, i2);
2072 op_data->op_fid1 = *ll_inode2fid(i1);
2073 op_data->op_capa1 = ll_mdscapa_get(i1);
2076 op_data->op_fid2 = *ll_inode2fid(i2);
2077 op_data->op_capa2 = ll_mdscapa_get(i2);
2079 fid_zero(&op_data->op_fid2);
2080 op_data->op_capa2 = NULL;
2083 op_data->op_name = name;
2084 op_data->op_namelen = namelen;
2085 op_data->op_mode = mode;
2086 op_data->op_mod_time = cfs_time_current_sec();
2087 op_data->op_fsuid = cfs_curproc_fsuid();
2088 op_data->op_fsgid = cfs_curproc_fsgid();
2089 op_data->op_cap = cfs_curproc_cap_pack();
2090 op_data->op_bias = MDS_CHECK_SPLIT;
2091 op_data->op_opc = opc;
2092 op_data->op_mds = 0;
2093 op_data->op_data = data;
2098 void ll_finish_md_op_data(struct md_op_data *op_data)
2100 capa_put(op_data->op_capa1);
2101 capa_put(op_data->op_capa2);
2102 OBD_FREE_PTR(op_data);
2105 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2107 struct ll_sb_info *sbi;
2109 LASSERT((seq != NULL) && (vfs != NULL));
2110 sbi = ll_s2sbi(vfs->mnt_sb);
2112 if (sbi->ll_flags & LL_SBI_NOLCK)
2113 seq_puts(seq, ",nolock");
2115 if (sbi->ll_flags & LL_SBI_FLOCK)
2116 seq_puts(seq, ",flock");
2118 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2119 seq_puts(seq, ",localflock");
2121 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2122 seq_puts(seq, ",user_xattr");
2124 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2125 seq_puts(seq, ",lazystatfs");