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 #ifndef MS_HAS_NEW_AOPS
65 extern struct address_space_operations ll_aops;
66 extern struct address_space_operations ll_dir_aops;
68 extern struct address_space_operations_ext ll_aops;
69 extern struct address_space_operations_ext ll_dir_aops;
73 #define log2(n) cfs_ffz(~(n))
76 static struct ll_sb_info *ll_init_sbi(void)
78 struct ll_sb_info *sbi = NULL;
85 OBD_ALLOC(sbi, sizeof(*sbi));
89 cfs_spin_lock_init(&sbi->ll_lock);
90 cfs_init_mutex(&sbi->ll_lco.lco_lock);
91 cfs_spin_lock_init(&sbi->ll_pp_extent_lock);
92 cfs_spin_lock_init(&sbi->ll_process_lock);
93 sbi->ll_rw_stats_on = 0;
96 pages = si.totalram - si.totalhigh;
97 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
98 #ifdef HAVE_BGL_SUPPORT
99 sbi->ll_async_page_max = pages / 4;
101 sbi->ll_async_page_max = pages / 2;
104 sbi->ll_async_page_max = (pages / 4) * 3;
107 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
108 SBI_DEFAULT_READAHEAD_MAX);
109 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
110 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
111 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
112 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
113 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
115 ll_generate_random_uuid(uuid);
116 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
117 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
119 cfs_spin_lock(&ll_sb_lock);
120 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
121 cfs_spin_unlock(&ll_sb_lock);
123 #ifdef ENABLE_CHECKSUM
124 sbi->ll_flags |= LL_SBI_CHECKSUM;
127 #ifdef HAVE_LRU_RESIZE_SUPPORT
128 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
131 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
132 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
134 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
138 /* metadata statahead is enabled by default */
139 sbi->ll_sa_max = LL_SA_RPC_DEF;
140 atomic_set(&sbi->ll_sa_total, 0);
141 atomic_set(&sbi->ll_sa_wrong, 0);
146 void ll_free_sbi(struct super_block *sb)
148 struct ll_sb_info *sbi = ll_s2sbi(sb);
152 cfs_spin_lock(&ll_sb_lock);
153 cfs_list_del(&sbi->ll_list);
154 cfs_spin_unlock(&ll_sb_lock);
155 OBD_FREE(sbi, sizeof(*sbi));
160 static struct dentry_operations ll_d_root_ops = {
161 .d_compare = ll_dcompare,
162 .d_revalidate = ll_revalidate_nd,
165 static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
167 struct inode *root = 0;
168 struct ll_sb_info *sbi = ll_s2sbi(sb);
169 struct obd_device *obd;
170 struct obd_capa *oc = NULL;
171 struct obd_statfs osfs;
172 struct ptlrpc_request *request = NULL;
173 struct obd_connect_data *data = NULL;
174 struct obd_uuid *uuid;
175 struct md_op_data *op_data;
176 struct lustre_md lmd;
178 int size, err, checksum;
181 obd = class_name2obd(md);
183 CERROR("MD %s: not setup or attached\n", md);
191 if (proc_lustre_fs_root) {
192 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
195 CERROR("could not register mount in /proc/fs/lustre\n");
198 /* indicate the features supported by this client */
199 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
200 OBD_CONNECT_JOIN | OBD_CONNECT_ATTRFID |
201 OBD_CONNECT_VERSION | OBD_CONNECT_MDS_CAPA |
202 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_CANCELSET|
203 OBD_CONNECT_FID | OBD_CONNECT_AT |
204 OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
205 OBD_CONNECT_VBR | OBD_CONNECT_FULL20 |
206 OBD_CONNECT_64BITHASH;
208 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
209 data->ocd_connect_flags |= OBD_CONNECT_SOM;
211 #ifdef HAVE_LRU_RESIZE_SUPPORT
212 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
213 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
215 #ifdef CONFIG_FS_POSIX_ACL
216 data->ocd_connect_flags |= OBD_CONNECT_ACL;
218 data->ocd_ibits_known = MDS_INODELOCK_FULL;
219 data->ocd_version = LUSTRE_VERSION_CODE;
221 if (sb->s_flags & MS_RDONLY)
222 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
223 if (sbi->ll_flags & LL_SBI_USER_XATTR)
224 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
226 #ifdef HAVE_MS_FLOCK_LOCK
227 /* force vfs to use lustre handler for flock() calls - bug 10743 */
228 sb->s_flags |= MS_FLOCK_LOCK;
230 #ifdef MS_HAS_NEW_AOPS
231 sb->s_flags |= MS_HAS_NEW_AOPS;
234 if (sbi->ll_flags & LL_SBI_FLOCK)
235 sbi->ll_fop = &ll_file_operations_flock;
236 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
237 sbi->ll_fop = &ll_file_operations;
239 sbi->ll_fop = &ll_file_operations_noflock;
242 data->ocd_connect_flags |= OBD_CONNECT_REAL;
243 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
244 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
246 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
248 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
249 "recovery, of which this client is not a "
250 "part. Please wait for recovery to complete,"
251 " abort, or time out.\n", md);
254 CERROR("cannot connect to %s: rc = %d\n", md, err);
258 err = obd_fid_init(sbi->ll_md_exp);
260 CERROR("Can't init metadata layer FID infrastructure, "
265 err = obd_statfs(obd, &osfs,
266 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
268 GOTO(out_md_fid, err);
270 size = sizeof(*data);
271 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
272 KEY_CONN_DATA, &size, data, NULL);
274 CERROR("Get connect data failed: %d \n", err);
278 LASSERT(osfs.os_bsize);
279 sb->s_blocksize = osfs.os_bsize;
280 sb->s_blocksize_bits = log2(osfs.os_bsize);
281 sb->s_magic = LL_SUPER_MAGIC;
283 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
284 * retval = in_file->f_op->sendfile(...);
286 * retval = -EOVERFLOW;
288 * it will check if *ppos is greater than max. However, max equals to
289 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
290 * has been defined as a signed long long integer in linux kernel. */
291 #if BITS_PER_LONG == 64
292 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
294 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
296 sbi->ll_namelen = osfs.os_namelen;
297 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
299 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
300 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
301 LCONSOLE_INFO("Disabling user_xattr feature because "
302 "it is not supported on the server\n");
303 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
306 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
308 sb->s_flags |= MS_POSIXACL;
310 sbi->ll_flags |= LL_SBI_ACL;
312 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
314 sb->s_flags &= ~MS_POSIXACL;
316 sbi->ll_flags &= ~LL_SBI_ACL;
319 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
320 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
321 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
322 LCONSOLE_INFO("client is set as remote by default.\n");
325 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
326 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
327 LCONSOLE_INFO("client claims to be remote, but server "
328 "rejected, forced to be local.\n");
332 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
333 LCONSOLE_INFO("client enabled MDS capability!\n");
334 sbi->ll_flags |= LL_SBI_MDS_CAPA;
337 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
338 LCONSOLE_INFO("client enabled OSS capability!\n");
339 sbi->ll_flags |= LL_SBI_OSS_CAPA;
342 obd = class_name2obd(dt);
344 CERROR("DT %s: not setup or attached\n", dt);
345 GOTO(out_md_fid, err = -ENODEV);
348 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
349 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
350 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
351 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
352 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
353 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
356 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
357 data->ocd_connect_flags |= OBD_CONNECT_SOM;
359 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
360 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
361 * disabled by default, because it can still be enabled on the
362 * fly via /proc. As a consequence, we still need to come to an
363 * agreement on the supported algorithms at connect time */
364 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
366 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
367 data->ocd_cksum_types = OBD_CKSUM_ADLER;
369 /* send the list of supported checksum types */
370 data->ocd_cksum_types = OBD_CKSUM_ALL;
373 #ifdef HAVE_LRU_RESIZE_SUPPORT
374 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
376 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
377 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
379 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
380 "ocd_grant: %d\n", data->ocd_connect_flags,
381 data->ocd_version, data->ocd_grant);
383 obd->obd_upcall.onu_owner = &sbi->ll_lco;
384 obd->obd_upcall.onu_upcall = cl_ocd_update;
385 data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
387 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
389 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
390 "recovery, of which this client is not a "
391 "part. Please wait for recovery to "
392 "complete, abort, or time out.\n", dt);
393 GOTO(out_md_fid, err);
395 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
396 GOTO(out_md_fid, err);
399 err = obd_fid_init(sbi->ll_dt_exp);
401 CERROR("Can't init data layer FID infrastructure, "
406 cfs_mutex_down(&sbi->ll_lco.lco_lock);
407 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
408 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
409 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
410 cfs_mutex_up(&sbi->ll_lco.lco_lock);
412 fid_zero(&sbi->ll_root_fid);
413 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
415 CERROR("cannot mds_connect: rc = %d\n", err);
416 GOTO(out_lock_cn_cb, err);
418 if (!fid_is_sane(&sbi->ll_root_fid)) {
419 CERROR("Invalid root fid during mount\n");
420 GOTO(out_lock_cn_cb, err = -EINVAL);
422 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
424 sb->s_op = &lustre_super_operations;
425 #if THREAD_SIZE >= 8192
426 sb->s_export_op = &lustre_export_operations;
430 * XXX: move this to after cbd setup? */
431 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
432 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
433 valid |= OBD_MD_FLRMTPERM;
434 else if (sbi->ll_flags & LL_SBI_ACL)
435 valid |= OBD_MD_FLACL;
437 OBD_ALLOC_PTR(op_data);
439 GOTO(out_lock_cn_cb, err = -ENOMEM);
441 op_data->op_fid1 = sbi->ll_root_fid;
442 op_data->op_mode = 0;
443 op_data->op_capa1 = oc;
444 op_data->op_valid = valid;
446 err = md_getattr(sbi->ll_md_exp, op_data, &request);
449 OBD_FREE_PTR(op_data);
451 CERROR("md_getattr failed for root: rc = %d\n", err);
452 GOTO(out_lock_cn_cb, err);
454 memset(&lmd, 0, sizeof(lmd));
455 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
456 sbi->ll_md_exp, &lmd);
458 CERROR("failed to understand root inode md: rc = %d\n", err);
459 ptlrpc_req_finished (request);
460 GOTO(out_lock_cn_cb, err);
463 LASSERT(fid_is_sane(&sbi->ll_root_fid));
464 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, 0), &lmd);
465 md_free_lustre_md(sbi->ll_md_exp, &lmd);
466 ptlrpc_req_finished(request);
468 if (root == NULL || IS_ERR(root)) {
470 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
471 #ifdef CONFIG_FS_POSIX_ACL
473 posix_acl_release(lmd.posix_acl);
474 lmd.posix_acl = NULL;
477 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
479 CERROR("lustre_lite: bad iget4 for root\n");
483 err = ll_close_thread_start(&sbi->ll_lcq);
485 CERROR("cannot start close thread: rc %d\n", err);
489 #ifdef CONFIG_FS_POSIX_ACL
490 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
491 rct_init(&sbi->ll_rct);
492 et_init(&sbi->ll_et);
496 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
497 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
498 KEY_CHECKSUM, sizeof(checksum), &checksum,
502 sb->s_root = d_alloc_root(root);
504 OBD_FREE(data, sizeof(*data));
506 sb->s_root->d_op = &ll_d_root_ops;
508 sbi->ll_sdev_orig = sb->s_dev;
510 /* We set sb->s_dev equal on all lustre clients in order to support
511 * NFS export clustering. NFSD requires that the FSID be the same
513 /* s_dev is also used in lt_compare() to compare two fs, but that is
514 * only a node-local comparison. */
515 uuid = obd_get_uuid(sbi->ll_md_exp);
517 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
524 obd_fid_fini(sbi->ll_dt_exp);
526 obd_disconnect(sbi->ll_dt_exp);
527 sbi->ll_dt_exp = NULL;
529 obd_fid_fini(sbi->ll_md_exp);
531 obd_disconnect(sbi->ll_md_exp);
532 sbi->ll_md_exp = NULL;
536 lprocfs_unregister_mountpoint(sbi);
540 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
544 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
546 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
547 KEY_MAX_EASIZE, &size, lmmsize, NULL);
549 CERROR("Get max mdsize error rc %d \n", rc);
554 void ll_dump_inode(struct inode *inode)
556 struct list_head *tmp;
557 int dentry_count = 0;
559 LASSERT(inode != NULL);
561 list_for_each(tmp, &inode->i_dentry)
564 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
565 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
566 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
569 void lustre_dump_dentry(struct dentry *dentry, int recur)
571 struct list_head *tmp;
574 LASSERT(dentry != NULL);
576 list_for_each(tmp, &dentry->d_subdirs)
579 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
580 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
581 dentry->d_name.len, dentry->d_name.name,
582 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
583 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
584 dentry->d_flags, dentry->d_fsdata, subdirs);
585 if (dentry->d_inode != NULL)
586 ll_dump_inode(dentry->d_inode);
591 list_for_each(tmp, &dentry->d_subdirs) {
592 struct dentry *d = list_entry(tmp, struct dentry, d_child);
593 lustre_dump_dentry(d, recur - 1);
597 void client_common_put_super(struct super_block *sb)
599 struct ll_sb_info *sbi = ll_s2sbi(sb);
602 #ifdef CONFIG_FS_POSIX_ACL
603 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
604 et_fini(&sbi->ll_et);
605 rct_fini(&sbi->ll_rct);
609 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
611 ll_close_thread_shutdown(sbi->ll_lcq);
615 cfs_list_del(&sbi->ll_conn_chain);
617 obd_fid_fini(sbi->ll_dt_exp);
618 obd_disconnect(sbi->ll_dt_exp);
619 sbi->ll_dt_exp = NULL;
621 lprocfs_unregister_mountpoint(sbi);
623 obd_fid_fini(sbi->ll_md_exp);
624 obd_disconnect(sbi->ll_md_exp);
625 sbi->ll_md_exp = NULL;
630 void ll_kill_super(struct super_block *sb)
632 struct ll_sb_info *sbi;
637 if (!(sb->s_flags & MS_ACTIVE))
641 /* we need restore s_dev from changed for clustred NFS before put_super
642 * because new kernels have cached s_dev and change sb->s_dev in
643 * put_super not affected real removing devices */
645 sb->s_dev = sbi->ll_sdev_orig;
649 char *ll_read_opt(const char *opt, char *data)
655 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
656 if (strncmp(opt, data, strlen(opt)))
658 if ((value = strchr(data, '=')) == NULL)
662 OBD_ALLOC(retval, strlen(value) + 1);
664 CERROR("out of memory!\n");
668 memcpy(retval, value, strlen(value)+1);
669 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
673 static inline int ll_set_opt(const char *opt, char *data, int fl)
675 if (strncmp(opt, data, strlen(opt)) != 0)
681 /* non-client-specific mount options are parsed in lmd_parse */
682 static int ll_options(char *options, int *flags)
685 char *s1 = options, *s2;
691 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
694 CDEBUG(D_SUPER, "next opt=%s\n", s1);
695 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
700 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
705 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
710 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
715 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
720 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
725 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
726 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
728 /* Ignore deprecated mount option. The client will
729 * always try to mount with ACL support, whether this
730 * is used depends on whether server supports it. */
731 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
732 "mount option 'acl'.\n");
735 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
737 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
738 "mount option 'noacl'.\n");
742 #warning "{no}acl options have been deprecated since 1.8, please remove them"
744 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
750 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
755 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
760 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
765 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
770 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
775 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
780 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
785 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
791 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
797 s2 = strchr(s1, ',');
805 void ll_lli_init(struct ll_inode_info *lli)
807 lli->lli_inode_magic = LLI_INODE_MAGIC;
808 cfs_sema_init(&lli->lli_size_sem, 1);
809 cfs_sema_init(&lli->lli_write_sem, 1);
810 cfs_init_rwsem(&lli->lli_trunc_sem);
812 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
813 cfs_spin_lock_init(&lli->lli_lock);
814 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
815 lli->lli_inode_magic = LLI_INODE_MAGIC;
816 cfs_sema_init(&lli->lli_och_sem, 1);
817 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
818 lli->lli_mds_exec_och = NULL;
819 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
820 lli->lli_open_fd_exec_count = 0;
821 CFS_INIT_LIST_HEAD(&lli->lli_dead_list);
822 lli->lli_remote_perms = NULL;
823 lli->lli_rmtperm_utime = 0;
824 cfs_sema_init(&lli->lli_rmtperm_sem, 1);
825 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
826 cfs_spin_lock_init(&lli->lli_sa_lock);
827 cfs_sema_init(&lli->lli_readdir_sem, 1);
830 static inline int ll_bdi_register(struct backing_dev_info *bdi)
832 #ifdef HAVE_BDI_REGISTER
833 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
835 bdi->name = "lustre";
836 return bdi_register(bdi, NULL, "lustre-%d",
837 atomic_inc_return(&ll_bdi_num));
843 int ll_fill_super(struct super_block *sb)
845 struct lustre_profile *lprof;
846 struct lustre_sb_info *lsi = s2lsi(sb);
847 struct ll_sb_info *sbi;
848 char *dt = NULL, *md = NULL;
849 char *profilenm = get_profile_name(sb);
850 struct config_llog_instance cfg = {0, };
851 char ll_instance[sizeof(sb) * 2 + 1];
855 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
859 /* client additional sb info */
860 lsi->lsi_llsbi = sbi = ll_init_sbi();
862 cfs_module_put(THIS_MODULE);
866 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
870 err = ll_bdi_init(&lsi->lsi_bdi);
873 lsi->lsi_flags |= LSI_BDI_INITIALIZED;
874 lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
875 err = ll_bdi_register(&lsi->lsi_bdi);
880 sb->s_bdi = &lsi->lsi_bdi;
883 /* Generate a string unique to this super, in case some joker tries
884 to mount the same fs at two mount points.
885 Use the address of the super itself.*/
886 sprintf(ll_instance, "%p", sb);
887 cfg.cfg_instance = ll_instance;
888 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
890 /* set up client obds */
891 err = lustre_process_log(sb, profilenm, &cfg);
893 CERROR("Unable to process log: %d\n", err);
897 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
898 lprof = class_get_profile(profilenm);
900 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
901 " read from the MGS. Does that filesystem "
902 "exist?\n", profilenm);
903 GOTO(out_free, err = -EINVAL);
905 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
906 lprof->lp_md, lprof->lp_dt);
908 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
909 strlen(ll_instance) + 2);
911 GOTO(out_free, err = -ENOMEM);
912 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
914 OBD_ALLOC(md, strlen(lprof->lp_md) +
915 strlen(ll_instance) + 2);
917 GOTO(out_free, err = -ENOMEM);
918 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
920 /* connections, registrations, sb setup */
921 err = client_common_fill_super(sb, md, dt);
925 OBD_FREE(md, strlen(md) + 1);
927 OBD_FREE(dt, strlen(dt) + 1);
931 LCONSOLE_WARN("Client %s has started\n", profilenm);
934 } /* ll_fill_super */
937 void lu_context_keys_dump(void);
939 void ll_put_super(struct super_block *sb)
941 struct config_llog_instance cfg;
942 char ll_instance[sizeof(sb) * 2 + 1];
943 struct obd_device *obd;
944 struct lustre_sb_info *lsi = s2lsi(sb);
945 struct ll_sb_info *sbi = ll_s2sbi(sb);
946 char *profilenm = get_profile_name(sb);
948 struct obd_device *prev;
951 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
953 ll_print_capa_stat(sbi);
955 sprintf(ll_instance, "%p", sb);
956 cfg.cfg_instance = ll_instance;
957 lustre_end_log(sb, NULL, &cfg);
959 if (sbi->ll_md_exp) {
960 obd = class_exp2obd(sbi->ll_md_exp);
962 force = obd->obd_force;
965 /* We need to set force before the lov_disconnect in
966 lustre_common_put_super, since l_d cleans up osc's as well. */
969 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
971 obd->obd_force = force;
976 /* Only if client_common_fill_super succeeded */
977 client_common_put_super(sb);
981 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &prev)) !=NULL) {
982 class_manual_cleanup(obd);
986 class_del_profile(profilenm);
988 if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
989 ll_bdi_destroy(&lsi->lsi_bdi);
990 lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
994 lsi->lsi_llsbi = NULL;
996 lustre_common_put_super(sb);
998 cl_env_cache_purge(~0);
1000 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
1002 cfs_module_put(THIS_MODULE);
1005 } /* client_put_super */
1007 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1009 struct inode *inode = NULL;
1010 /* NOTE: we depend on atomic igrab() -bzzz */
1011 lock_res_and_lock(lock);
1012 if (lock->l_ast_data) {
1013 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1014 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1015 inode = igrab(lock->l_ast_data);
1017 inode = lock->l_ast_data;
1018 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1019 D_WARNING, lock, "l_ast_data %p is "
1020 "bogus: magic %08x", lock->l_ast_data,
1021 lli->lli_inode_magic);
1025 unlock_res_and_lock(lock);
1029 static int null_if_equal(struct ldlm_lock *lock, void *data)
1031 if (data == lock->l_ast_data) {
1032 lock->l_ast_data = NULL;
1034 if (lock->l_req_mode != lock->l_granted_mode)
1035 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1038 return LDLM_ITER_CONTINUE;
1041 void ll_clear_inode(struct inode *inode)
1043 struct ll_inode_info *lli = ll_i2info(inode);
1044 struct ll_sb_info *sbi = ll_i2sbi(inode);
1047 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1048 inode->i_generation, inode);
1050 if (S_ISDIR(inode->i_mode)) {
1051 /* these should have been cleared in ll_file_release */
1052 LASSERT(lli->lli_sai == NULL);
1053 LASSERT(lli->lli_opendir_key == NULL);
1054 LASSERT(lli->lli_opendir_pid == 0);
1057 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1058 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1059 null_if_equal, inode);
1061 LASSERT(!lli->lli_open_fd_write_count);
1062 LASSERT(!lli->lli_open_fd_read_count);
1063 LASSERT(!lli->lli_open_fd_exec_count);
1065 if (lli->lli_mds_write_och)
1066 ll_md_real_close(inode, FMODE_WRITE);
1067 if (lli->lli_mds_exec_och)
1068 ll_md_real_close(inode, FMODE_EXEC);
1069 if (lli->lli_mds_read_och)
1070 ll_md_real_close(inode, FMODE_READ);
1072 if (lli->lli_symlink_name) {
1073 OBD_FREE(lli->lli_symlink_name,
1074 strlen(lli->lli_symlink_name) + 1);
1075 lli->lli_symlink_name = NULL;
1078 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1079 LASSERT(lli->lli_posix_acl == NULL);
1080 if (lli->lli_remote_perms) {
1081 free_rmtperm_hash(lli->lli_remote_perms);
1082 lli->lli_remote_perms = NULL;
1085 #ifdef CONFIG_FS_POSIX_ACL
1086 else if (lli->lli_posix_acl) {
1087 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1088 LASSERT(lli->lli_remote_perms == NULL);
1089 posix_acl_release(lli->lli_posix_acl);
1090 lli->lli_posix_acl = NULL;
1093 lli->lli_inode_magic = LLI_INODE_DEAD;
1095 ll_clear_inode_capas(inode);
1097 * XXX This has to be done before lsm is freed below, because
1098 * cl_object still uses inode lsm.
1100 cl_inode_fini(inode);
1103 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1104 lli->lli_smd = NULL;
1111 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1112 struct md_open_data **mod)
1114 struct lustre_md md;
1115 struct ll_sb_info *sbi = ll_i2sbi(inode);
1116 struct ptlrpc_request *request = NULL;
1120 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1121 LUSTRE_OPC_ANY, NULL);
1122 if (IS_ERR(op_data))
1123 RETURN(PTR_ERR(op_data));
1125 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1128 ptlrpc_req_finished(request);
1129 if (rc == -ENOENT) {
1131 /* Unlinked special device node? Or just a race?
1132 * Pretend we done everything. */
1133 if (!S_ISREG(inode->i_mode) &&
1134 !S_ISDIR(inode->i_mode))
1135 rc = inode_setattr(inode, &op_data->op_attr);
1136 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1137 CERROR("md_setattr fails: rc = %d\n", rc);
1142 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1143 sbi->ll_md_exp, &md);
1145 ptlrpc_req_finished(request);
1149 /* We call inode_setattr to adjust timestamps.
1150 * If there is at least some data in file, we cleared ATTR_SIZE
1151 * above to avoid invoking vmtruncate, otherwise it is important
1152 * to call vmtruncate in inode_setattr to update inode->i_size
1154 rc = inode_setattr(inode, &op_data->op_attr);
1156 /* Extract epoch data if obtained. */
1157 op_data->op_handle = md.body->handle;
1158 op_data->op_ioepoch = md.body->ioepoch;
1160 ll_update_inode(inode, &md);
1161 ptlrpc_req_finished(request);
1166 /* Close IO epoch and send Size-on-MDS attribute update. */
1167 static int ll_setattr_done_writing(struct inode *inode,
1168 struct md_op_data *op_data,
1169 struct md_open_data *mod)
1171 struct ll_inode_info *lli = ll_i2info(inode);
1175 LASSERT(op_data != NULL);
1176 if (!S_ISREG(inode->i_mode))
1179 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1180 op_data->op_ioepoch, PFID(&lli->lli_fid));
1182 op_data->op_flags = MF_EPOCH_CLOSE;
1183 ll_done_writing_attr(inode, op_data);
1184 ll_pack_inode2opdata(inode, op_data, NULL);
1186 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1187 if (rc == -EAGAIN) {
1188 /* MDS has instructed us to obtain Size-on-MDS attribute
1189 * from OSTs and send setattr to back to MDS. */
1190 rc = ll_som_update(inode, op_data);
1192 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1198 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1200 struct obd_capa *capa;
1203 if (attr->ia_valid & ATTR_SIZE)
1204 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1206 capa = ll_mdscapa_get(inode);
1208 rc = cl_setattr_ost(inode, attr, capa);
1210 if (attr->ia_valid & ATTR_SIZE)
1211 ll_truncate_free_capa(capa);
1218 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1219 * object(s) determine the file size and mtime. Otherwise, the MDS will
1220 * keep these values until such a time that objects are allocated for it.
1221 * We do the MDS operations first, as it is checking permissions for us.
1222 * We don't to the MDS RPC if there is nothing that we want to store there,
1223 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1224 * going to do an RPC anyways.
1226 * If we are doing a truncate, we will send the mtime and ctime updates
1227 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1228 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1231 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1233 struct ll_inode_info *lli = ll_i2info(inode);
1234 struct lov_stripe_md *lsm = lli->lli_smd;
1235 struct md_op_data *op_data = NULL;
1236 struct md_open_data *mod = NULL;
1237 int ia_valid = attr->ia_valid;
1238 int rc = 0, rc1 = 0;
1241 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1243 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1245 if (ia_valid & ATTR_SIZE) {
1246 if (attr->ia_size > ll_file_maxbytes(inode)) {
1247 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1248 attr->ia_size, ll_file_maxbytes(inode));
1252 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1255 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1256 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1257 if (cfs_curproc_fsuid() != inode->i_uid &&
1258 !cfs_capable(CFS_CAP_FOWNER))
1262 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1263 if (attr->ia_valid & ATTR_CTIME) {
1264 attr->ia_ctime = CFS_CURRENT_TIME;
1265 attr->ia_valid |= ATTR_CTIME_SET;
1267 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1268 attr->ia_atime = CFS_CURRENT_TIME;
1269 attr->ia_valid |= ATTR_ATIME_SET;
1271 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1272 attr->ia_mtime = CFS_CURRENT_TIME;
1273 attr->ia_valid |= ATTR_MTIME_SET;
1276 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1277 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1278 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1279 cfs_time_current_sec());
1281 /* NB: ATTR_SIZE will only be set after this point if the size
1282 * resides on the MDS, ie, this file has no objects. */
1284 attr->ia_valid &= ~ATTR_SIZE;
1286 /* We always do an MDS RPC, even if we're only changing the size;
1287 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1289 OBD_ALLOC_PTR(op_data);
1290 if (op_data == NULL)
1293 UNLOCK_INODE_MUTEX(inode);
1294 if (ia_valid & ATTR_SIZE)
1295 UP_WRITE_I_ALLOC_SEM(inode);
1296 cfs_down_write(&lli->lli_trunc_sem);
1297 LOCK_INODE_MUTEX(inode);
1298 if (ia_valid & ATTR_SIZE)
1299 DOWN_WRITE_I_ALLOC_SEM(inode);
1301 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1303 /* Open epoch for truncate. */
1304 if (exp_connect_som(ll_i2mdexp(inode)) &&
1305 (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1306 op_data->op_flags = MF_EPOCH_OPEN;
1308 rc = ll_md_setattr(inode, op_data, &mod);
1312 ll_ioepoch_open(lli, op_data->op_ioepoch);
1313 if (!lsm || !S_ISREG(inode->i_mode)) {
1314 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1318 if (ia_valid & ATTR_SIZE)
1319 attr->ia_valid |= ATTR_SIZE;
1320 if (ia_valid & (ATTR_SIZE |
1321 ATTR_ATIME | ATTR_ATIME_SET |
1322 ATTR_MTIME | ATTR_MTIME_SET))
1323 /* on truncate and utimes send attributes to osts, setting
1324 * mtime/atime to past will be performed under PW 0:EOF extent
1325 * lock (new_size:EOF for truncate)
1326 * it may seem excessive to send mtime/atime updates to osts
1327 * when not setting times to past, but it is necessary due to
1328 * possible time de-synchronization */
1329 rc = ll_setattr_ost(inode, attr);
1333 if (op_data->op_ioepoch)
1334 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1335 ll_finish_md_op_data(op_data);
1337 cfs_up_write(&lli->lli_trunc_sem);
1338 return rc ? rc : rc1;
1341 int ll_setattr(struct dentry *de, struct iattr *attr)
1343 int mode = de->d_inode->i_mode;
1345 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1346 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1347 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1349 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1350 (ATTR_SIZE|ATTR_MODE)) &&
1351 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1352 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1353 !(attr->ia_mode & S_ISGID))))
1354 attr->ia_valid |= ATTR_FORCE;
1356 if ((mode & S_ISUID) &&
1357 !(attr->ia_mode & S_ISUID) &&
1358 !(attr->ia_valid & ATTR_KILL_SUID))
1359 attr->ia_valid |= ATTR_KILL_SUID;
1361 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1362 !(attr->ia_mode & S_ISGID) &&
1363 !(attr->ia_valid & ATTR_KILL_SGID))
1364 attr->ia_valid |= ATTR_KILL_SGID;
1366 return ll_setattr_raw(de->d_inode, attr);
1369 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1370 __u64 max_age, __u32 flags)
1372 struct ll_sb_info *sbi = ll_s2sbi(sb);
1373 struct obd_statfs obd_osfs;
1377 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1379 CERROR("md_statfs fails: rc = %d\n", rc);
1383 osfs->os_type = sb->s_magic;
1385 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1386 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1388 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1389 flags |= OBD_STATFS_NODELAY;
1391 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1392 &obd_osfs, max_age, flags);
1394 CERROR("obd_statfs fails: rc = %d\n", rc);
1398 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1399 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1402 osfs->os_bsize = obd_osfs.os_bsize;
1403 osfs->os_blocks = obd_osfs.os_blocks;
1404 osfs->os_bfree = obd_osfs.os_bfree;
1405 osfs->os_bavail = obd_osfs.os_bavail;
1407 /* If we don't have as many objects free on the OST as inodes
1408 * on the MDS, we reduce the total number of inodes to
1409 * compensate, so that the "inodes in use" number is correct.
1411 if (obd_osfs.os_ffree < osfs->os_ffree) {
1412 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1414 osfs->os_ffree = obd_osfs.os_ffree;
1419 #ifndef HAVE_STATFS_DENTRY_PARAM
1420 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1423 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1425 struct super_block *sb = de->d_sb;
1427 struct obd_statfs osfs;
1430 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1431 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1433 /* Some amount of caching on the client is allowed */
1434 rc = ll_statfs_internal(sb, &osfs,
1435 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1440 statfs_unpack(sfs, &osfs);
1442 /* We need to downshift for all 32-bit kernels, because we can't
1443 * tell if the kernel is being called via sys_statfs64() or not.
1444 * Stop before overflowing f_bsize - in which case it is better
1445 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1446 if (sizeof(long) < 8) {
1447 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1450 osfs.os_blocks >>= 1;
1451 osfs.os_bfree >>= 1;
1452 osfs.os_bavail >>= 1;
1456 sfs->f_blocks = osfs.os_blocks;
1457 sfs->f_bfree = osfs.os_bfree;
1458 sfs->f_bavail = osfs.os_bavail;
1463 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1465 struct ll_inode_info *lli;
1466 struct lov_stripe_md *lsm;
1468 lli = ll_i2info(inode);
1469 LASSERT(lli->lli_size_sem_owner != current);
1470 cfs_down(&lli->lli_size_sem);
1471 LASSERT(lli->lli_size_sem_owner == NULL);
1472 lli->lli_size_sem_owner = current;
1474 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1477 lov_stripe_lock(lsm);
1480 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1482 struct ll_inode_info *lli;
1483 struct lov_stripe_md *lsm;
1485 lli = ll_i2info(inode);
1487 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1490 lov_stripe_unlock(lsm);
1491 LASSERT(lli->lli_size_sem_owner == current);
1492 lli->lli_size_sem_owner = NULL;
1493 cfs_up(&lli->lli_size_sem);
1496 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1498 struct ll_inode_info *lli = ll_i2info(inode);
1499 struct mdt_body *body = md->body;
1500 struct lov_stripe_md *lsm = md->lsm;
1501 struct ll_sb_info *sbi = ll_i2sbi(inode);
1503 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1505 cfs_down(&lli->lli_och_sem);
1506 if (lli->lli_smd == NULL) {
1507 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1508 lsm->lsm_magic != LOV_MAGIC_V3) {
1509 dump_lsm(D_ERROR, lsm);
1512 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1513 lsm, inode->i_ino, inode->i_generation, inode);
1514 /* cl_inode_init must go before lli_smd or a race is
1515 * possible where client thinks the file has stripes,
1516 * but lov raid0 is not setup yet and parallel e.g.
1517 * glimpse would try to use uninitialized lov */
1518 cl_inode_init(inode, md);
1520 cfs_up(&lli->lli_och_sem);
1521 lli->lli_maxbytes = lsm->lsm_maxbytes;
1522 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1523 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1525 cfs_up(&lli->lli_och_sem);
1526 LASSERT(lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1527 lli->lli_smd->lsm_stripe_count ==
1528 lsm->lsm_stripe_count);
1529 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1530 CERROR("lsm mismatch for inode %ld\n",
1532 CERROR("lli_smd:\n");
1533 dump_lsm(D_ERROR, lli->lli_smd);
1535 dump_lsm(D_ERROR, lsm);
1539 if (lli->lli_smd != lsm)
1540 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1543 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1544 if (body->valid & OBD_MD_FLRMTPERM)
1545 ll_update_remote_perm(inode, md->remote_perm);
1547 #ifdef CONFIG_FS_POSIX_ACL
1548 else if (body->valid & OBD_MD_FLACL) {
1549 cfs_spin_lock(&lli->lli_lock);
1550 if (lli->lli_posix_acl)
1551 posix_acl_release(lli->lli_posix_acl);
1552 lli->lli_posix_acl = md->posix_acl;
1553 cfs_spin_unlock(&lli->lli_lock);
1556 inode->i_ino = cl_fid_build_ino(&body->fid1, 0);
1557 inode->i_generation = cl_fid_build_gen(&body->fid1);
1559 if (body->valid & OBD_MD_FLATIME) {
1560 if (body->atime > LTIME_S(inode->i_atime))
1561 LTIME_S(inode->i_atime) = body->atime;
1562 lli->lli_lvb.lvb_atime = body->atime;
1564 if (body->valid & OBD_MD_FLMTIME) {
1565 if (body->mtime > LTIME_S(inode->i_mtime)) {
1566 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1567 "to "LPU64"\n", inode->i_ino,
1568 LTIME_S(inode->i_mtime), body->mtime);
1569 LTIME_S(inode->i_mtime) = body->mtime;
1571 lli->lli_lvb.lvb_mtime = body->mtime;
1573 if (body->valid & OBD_MD_FLCTIME) {
1574 if (body->ctime > LTIME_S(inode->i_ctime))
1575 LTIME_S(inode->i_ctime) = body->ctime;
1576 lli->lli_lvb.lvb_ctime = body->ctime;
1578 if (body->valid & OBD_MD_FLMODE)
1579 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1580 if (body->valid & OBD_MD_FLTYPE)
1581 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1582 LASSERT(inode->i_mode != 0);
1583 if (S_ISREG(inode->i_mode)) {
1584 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1586 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1588 #ifdef HAVE_INODE_BLKSIZE
1589 inode->i_blksize = 1<<inode->i_blkbits;
1591 if (body->valid & OBD_MD_FLUID)
1592 inode->i_uid = body->uid;
1593 if (body->valid & OBD_MD_FLGID)
1594 inode->i_gid = body->gid;
1595 if (body->valid & OBD_MD_FLFLAGS)
1596 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1597 if (body->valid & OBD_MD_FLNLINK)
1598 inode->i_nlink = body->nlink;
1599 if (body->valid & OBD_MD_FLRDEV)
1600 inode->i_rdev = old_decode_dev(body->rdev);
1602 if (body->valid & OBD_MD_FLID) {
1603 /* FID shouldn't be changed! */
1604 if (fid_is_sane(&lli->lli_fid)) {
1605 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1606 "Trying to change FID "DFID
1607 " to the "DFID", inode %lu/%u(%p)\n",
1608 PFID(&lli->lli_fid), PFID(&body->fid1),
1609 inode->i_ino, inode->i_generation, inode);
1611 lli->lli_fid = body->fid1;
1614 LASSERT(fid_seq(&lli->lli_fid) != 0);
1616 if (body->valid & OBD_MD_FLSIZE) {
1617 if (exp_connect_som(ll_i2mdexp(inode)) &&
1618 S_ISREG(inode->i_mode) && lli->lli_smd) {
1619 struct lustre_handle lockh;
1622 /* As it is possible a blocking ast has been processed
1623 * by this time, we need to check there is an UPDATE
1624 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1626 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1629 if (lli->lli_flags & (LLIF_DONE_WRITING |
1630 LLIF_EPOCH_PENDING |
1632 CERROR("ino %lu flags %lu still has "
1633 "size authority! do not trust "
1634 "the size got from MDS\n",
1635 inode->i_ino, lli->lli_flags);
1637 /* Use old size assignment to avoid
1638 * deadlock bz14138 & bz14326 */
1639 inode->i_size = body->size;
1640 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1642 ldlm_lock_decref(&lockh, mode);
1645 /* Use old size assignment to avoid
1646 * deadlock bz14138 & bz14326 */
1647 inode->i_size = body->size;
1649 CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
1650 inode->i_ino, (unsigned long long)body->size);
1653 if (body->valid & OBD_MD_FLBLOCKS)
1654 inode->i_blocks = body->blocks;
1657 if (body->valid & OBD_MD_FLMDSCAPA) {
1658 LASSERT(md->mds_capa);
1659 ll_add_capa(inode, md->mds_capa);
1661 if (body->valid & OBD_MD_FLOSSCAPA) {
1662 LASSERT(md->oss_capa);
1663 ll_add_capa(inode, md->oss_capa);
1667 void ll_read_inode2(struct inode *inode, void *opaque)
1669 struct lustre_md *md = opaque;
1670 struct ll_inode_info *lli = ll_i2info(inode);
1673 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1674 inode->i_ino, inode->i_generation, inode);
1678 LASSERT(!lli->lli_smd);
1680 /* Core attributes from the MDS first. This is a new inode, and
1681 * the VFS doesn't zero times in the core inode so we have to do
1682 * it ourselves. They will be overwritten by either MDS or OST
1683 * attributes - we just need to make sure they aren't newer. */
1684 LTIME_S(inode->i_mtime) = 0;
1685 LTIME_S(inode->i_atime) = 0;
1686 LTIME_S(inode->i_ctime) = 0;
1688 ll_update_inode(inode, md);
1690 /* OIDEBUG(inode); */
1692 /* initializing backing dev info. */
1693 inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
1696 if (S_ISREG(inode->i_mode)) {
1697 struct ll_sb_info *sbi = ll_i2sbi(inode);
1698 inode->i_op = &ll_file_inode_operations;
1699 inode->i_fop = sbi->ll_fop;
1700 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
1702 } else if (S_ISDIR(inode->i_mode)) {
1703 inode->i_op = &ll_dir_inode_operations;
1704 inode->i_fop = &ll_dir_operations;
1705 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_dir_aops;
1707 } else if (S_ISLNK(inode->i_mode)) {
1708 inode->i_op = &ll_fast_symlink_inode_operations;
1711 inode->i_op = &ll_special_inode_operations;
1713 init_special_inode(inode, inode->i_mode,
1714 kdev_t_to_nr(inode->i_rdev));
1720 void ll_delete_inode(struct inode *inode)
1722 struct ll_sb_info *sbi = ll_i2sbi(inode);
1726 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1728 CERROR("fid_delete() failed, rc %d\n", rc);
1730 truncate_inode_pages(&inode->i_data, 0);
1736 int ll_iocontrol(struct inode *inode, struct file *file,
1737 unsigned int cmd, unsigned long arg)
1739 struct ll_sb_info *sbi = ll_i2sbi(inode);
1740 struct ptlrpc_request *req = NULL;
1745 case FSFILT_IOC_GETFLAGS: {
1746 struct mdt_body *body;
1747 struct md_op_data *op_data;
1749 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
1750 0, 0, LUSTRE_OPC_ANY,
1752 if (op_data == NULL)
1755 op_data->op_valid = OBD_MD_FLFLAGS;
1756 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
1757 ll_finish_md_op_data(op_data);
1759 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1763 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1765 flags = body->flags;
1767 ptlrpc_req_finished(req);
1769 RETURN(put_user(flags, (int *)arg));
1771 case FSFILT_IOC_SETFLAGS: {
1772 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1773 struct obd_info oinfo = { { { 0 } } };
1774 struct md_op_data *op_data;
1776 if (get_user(flags, (int *)arg))
1780 OBDO_ALLOC(oinfo.oi_oa);
1784 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1785 LUSTRE_OPC_ANY, NULL);
1786 if (IS_ERR(op_data))
1787 RETURN(PTR_ERR(op_data));
1789 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1790 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1791 rc = md_setattr(sbi->ll_md_exp, op_data,
1792 NULL, 0, NULL, 0, &req, NULL);
1793 ll_finish_md_op_data(op_data);
1794 ptlrpc_req_finished(req);
1796 OBDO_FREE(oinfo.oi_oa);
1801 OBDO_FREE(oinfo.oi_oa);
1802 GOTO(update_cache, rc);
1805 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1806 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
1807 oinfo.oi_oa->o_flags = flags;
1808 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1810 oinfo.oi_capa = ll_mdscapa_get(inode);
1811 obdo_from_inode(oinfo.oi_oa, inode,
1812 &ll_i2info(inode)->lli_fid, 0);
1813 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1814 capa_put(oinfo.oi_capa);
1815 OBDO_FREE(oinfo.oi_oa);
1817 if (rc != -EPERM && rc != -EACCES)
1818 CERROR("osc_setattr_async fails: rc = %d\n",rc);
1824 inode->i_flags = ll_ext_to_inode_flags(flags);
1834 int ll_flush_ctx(struct inode *inode)
1836 struct ll_sb_info *sbi = ll_i2sbi(inode);
1838 CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
1840 obd_set_info_async(sbi->ll_md_exp,
1841 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1843 obd_set_info_async(sbi->ll_dt_exp,
1844 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1849 /* umount -f client means force down, don't save state */
1850 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1851 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1853 struct super_block *sb = vfsmnt->mnt_sb;
1855 void ll_umount_begin(struct super_block *sb)
1858 struct lustre_sb_info *lsi = s2lsi(sb);
1859 struct ll_sb_info *sbi = ll_s2sbi(sb);
1860 struct obd_device *obd;
1861 struct obd_ioctl_data *ioc_data;
1864 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1865 if (!(flags & MNT_FORCE)) {
1871 /* Tell the MGC we got umount -f */
1872 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1874 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1875 sb->s_count, atomic_read(&sb->s_active));
1877 obd = class_exp2obd(sbi->ll_md_exp);
1879 CERROR("Invalid MDC connection handle "LPX64"\n",
1880 sbi->ll_md_exp->exp_handle.h_cookie);
1886 obd = class_exp2obd(sbi->ll_dt_exp);
1888 CERROR("Invalid LOV connection handle "LPX64"\n",
1889 sbi->ll_dt_exp->exp_handle.h_cookie);
1895 OBD_ALLOC_PTR(ioc_data);
1897 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
1898 sizeof ioc_data, ioc_data, NULL);
1900 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
1901 sizeof ioc_data, ioc_data, NULL);
1903 OBD_FREE_PTR(ioc_data);
1907 /* Really, we'd like to wait until there are no requests outstanding,
1908 * and then continue. For now, we just invalidate the requests,
1909 * schedule() and sleep one second if needed, and hope.
1912 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1913 if (atomic_read(&vfsmnt->mnt_count) > 2) {
1914 cfs_schedule_timeout_and_set_state(CFS_TASK_INTERRUPTIBLE,
1915 cfs_time_seconds(1));
1916 if (atomic_read(&vfsmnt->mnt_count) > 2)
1917 LCONSOLE_WARN("Mount still busy with %d refs! You "
1918 "may try to umount it a bit later\n",
1919 atomic_read(&vfsmnt->mnt_count));
1926 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1928 struct ll_sb_info *sbi = ll_s2sbi(sb);
1932 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
1933 read_only = *flags & MS_RDONLY;
1934 err = obd_set_info_async(sbi->ll_md_exp,
1935 sizeof(KEY_READ_ONLY),
1936 KEY_READ_ONLY, sizeof(read_only),
1939 CERROR("Failed to change the read-only flag during "
1940 "remount: %d\n", err);
1945 sb->s_flags |= MS_RDONLY;
1947 sb->s_flags &= ~MS_RDONLY;
1952 int ll_prep_inode(struct inode **inode,
1953 struct ptlrpc_request *req,
1954 struct super_block *sb)
1956 struct ll_sb_info *sbi = NULL;
1957 struct lustre_md md;
1961 LASSERT(*inode || sb);
1962 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
1963 memset(&md, 0, sizeof(struct lustre_md));
1965 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
1966 sbi->ll_md_exp, &md);
1971 ll_update_inode(*inode, &md);
1973 LASSERT(sb != NULL);
1976 * At this point server returns to client's same fid as client
1977 * generated for creating. So using ->fid1 is okay here.
1979 LASSERT(fid_is_sane(&md.body->fid1));
1981 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, 0), &md);
1982 if (*inode == NULL || IS_ERR(*inode)) {
1984 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
1985 #ifdef CONFIG_FS_POSIX_ACL
1987 posix_acl_release(md.posix_acl);
1988 md.posix_acl = NULL;
1991 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
1993 CERROR("new_inode -fatal: rc %d\n", rc);
1999 md_free_lustre_md(sbi->ll_md_exp, &md);
2003 int ll_obd_statfs(struct inode *inode, void *arg)
2005 struct ll_sb_info *sbi = NULL;
2006 struct obd_export *exp;
2008 struct obd_ioctl_data *data = NULL;
2012 if (!inode || !(sbi = ll_i2sbi(inode)))
2013 GOTO(out_statfs, rc = -EINVAL);
2015 rc = obd_ioctl_getdata(&buf, &len, arg);
2017 GOTO(out_statfs, rc);
2020 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2021 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2022 GOTO(out_statfs, rc = -EINVAL);
2024 if (data->ioc_inllen1 != sizeof(__u32) ||
2025 data->ioc_inllen2 != sizeof(__u32) ||
2026 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2027 data->ioc_plen2 != sizeof(struct obd_uuid))
2028 GOTO(out_statfs, rc = -EINVAL);
2030 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2031 if (type == LL_STATFS_MDC)
2032 exp = sbi->ll_md_exp;
2033 else if (type == LL_STATFS_LOV)
2034 exp = sbi->ll_dt_exp;
2036 GOTO(out_statfs, rc = -ENODEV);
2038 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2040 GOTO(out_statfs, rc);
2043 obd_ioctl_freedata(buf, len);
2047 int ll_process_config(struct lustre_cfg *lcfg)
2051 struct lprocfs_static_vars lvars;
2055 lprocfs_llite_init_vars(&lvars);
2057 /* The instance name contains the sb: lustre-client-aacfe000 */
2058 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2059 if (!ptr || !*(++ptr))
2061 if (sscanf(ptr, "%lx", &x) != 1)
2064 /* This better be a real Lustre superblock! */
2065 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2067 /* Note we have not called client_common_fill_super yet, so
2068 proc fns must be able to handle that! */
2069 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2076 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2077 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2078 struct inode *i1, struct inode *i2,
2079 const char *name, int namelen,
2080 int mode, __u32 opc, void *data)
2082 LASSERT(i1 != NULL);
2084 if (namelen > ll_i2sbi(i1)->ll_namelen)
2085 return ERR_PTR(-ENAMETOOLONG);
2087 if (op_data == NULL)
2088 OBD_ALLOC_PTR(op_data);
2090 if (op_data == NULL)
2091 return ERR_PTR(-ENOMEM);
2093 ll_i2gids(op_data->op_suppgids, i1, i2);
2094 op_data->op_fid1 = *ll_inode2fid(i1);
2095 op_data->op_capa1 = ll_mdscapa_get(i1);
2098 op_data->op_fid2 = *ll_inode2fid(i2);
2099 op_data->op_capa2 = ll_mdscapa_get(i2);
2101 fid_zero(&op_data->op_fid2);
2102 op_data->op_capa2 = NULL;
2105 op_data->op_name = name;
2106 op_data->op_namelen = namelen;
2107 op_data->op_mode = mode;
2108 op_data->op_mod_time = cfs_time_current_sec();
2109 op_data->op_fsuid = cfs_curproc_fsuid();
2110 op_data->op_fsgid = cfs_curproc_fsgid();
2111 op_data->op_cap = cfs_curproc_cap_pack();
2112 op_data->op_bias = MDS_CHECK_SPLIT;
2113 op_data->op_opc = opc;
2114 op_data->op_mds = 0;
2115 op_data->op_data = data;
2120 void ll_finish_md_op_data(struct md_op_data *op_data)
2122 capa_put(op_data->op_capa1);
2123 capa_put(op_data->op_capa2);
2124 OBD_FREE_PTR(op_data);
2127 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2129 struct ll_sb_info *sbi;
2131 LASSERT((seq != NULL) && (vfs != NULL));
2132 sbi = ll_s2sbi(vfs->mnt_sb);
2134 if (sbi->ll_flags & LL_SBI_NOLCK)
2135 seq_puts(seq, ",nolock");
2137 if (sbi->ll_flags & LL_SBI_FLOCK)
2138 seq_puts(seq, ",flock");
2140 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2141 seq_puts(seq, ",localflock");
2143 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2144 seq_puts(seq, ",user_xattr");
2146 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2147 seq_puts(seq, ",lazystatfs");