4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
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 struct kmem_cache *ll_file_data_slab;
61 CFS_LIST_HEAD(ll_super_blocks);
62 DEFINE_SPINLOCK(ll_sb_lock);
64 #ifndef MS_HAS_NEW_AOPS
65 extern struct address_space_operations ll_aops;
67 extern struct address_space_operations_ext ll_aops;
71 #define log2(n) ffz(~(n))
74 static struct ll_sb_info *ll_init_sbi(void)
76 struct ll_sb_info *sbi = NULL;
78 unsigned long lru_page_max;
84 OBD_ALLOC(sbi, sizeof(*sbi));
88 spin_lock_init(&sbi->ll_lock);
89 mutex_init(&sbi->ll_lco.lco_lock);
90 spin_lock_init(&sbi->ll_pp_extent_lock);
91 spin_lock_init(&sbi->ll_process_lock);
92 sbi->ll_rw_stats_on = 0;
95 pages = si.totalram - si.totalhigh;
96 lru_page_max = pages / 2;
98 /* initialize ll_cache data */
99 cfs_atomic_set(&sbi->ll_cache.ccc_users, 0);
100 sbi->ll_cache.ccc_lru_max = lru_page_max;
101 cfs_atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max);
102 spin_lock_init(&sbi->ll_cache.ccc_lru_lock);
103 CFS_INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru);
105 cfs_atomic_set(&sbi->ll_cache.ccc_unstable_nr, 0);
106 init_waitqueue_head(&sbi->ll_cache.ccc_unstable_waitq);
108 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
109 SBI_DEFAULT_READAHEAD_MAX);
110 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
111 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
112 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
113 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
114 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
116 ll_generate_random_uuid(uuid);
117 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
118 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
120 spin_lock(&ll_sb_lock);
121 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
122 spin_unlock(&ll_sb_lock);
124 sbi->ll_flags |= LL_SBI_VERBOSE;
125 #ifdef ENABLE_CHECKSUM
126 sbi->ll_flags |= LL_SBI_CHECKSUM;
129 #ifdef HAVE_LRU_RESIZE_SUPPORT
130 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
133 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
134 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
136 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].
140 /* metadata statahead is enabled by default */
141 sbi->ll_sa_max = LL_SA_RPC_DEF;
142 cfs_atomic_set(&sbi->ll_sa_total, 0);
143 cfs_atomic_set(&sbi->ll_sa_wrong, 0);
144 cfs_atomic_set(&sbi->ll_agl_total, 0);
145 sbi->ll_flags |= LL_SBI_AGL_ENABLED;
150 void ll_free_sbi(struct super_block *sb)
152 struct ll_sb_info *sbi = ll_s2sbi(sb);
156 spin_lock(&ll_sb_lock);
157 cfs_list_del(&sbi->ll_list);
158 spin_unlock(&ll_sb_lock);
159 OBD_FREE(sbi, sizeof(*sbi));
164 static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
165 struct vfsmount *mnt)
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 = NULL;
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);
197 /* indicate the features supported by this client */
198 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
199 OBD_CONNECT_ATTRFID |
200 OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE |
201 OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
202 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
203 OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 |
204 OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR |
205 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH|
206 OBD_CONNECT_EINPROGRESS |
207 OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
208 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS |
209 OBD_CONNECT_MAX_EASIZE |
210 OBD_CONNECT_FLOCK_DEAD |
211 OBD_CONNECT_DISP_STRIPE;
213 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
214 data->ocd_connect_flags |= OBD_CONNECT_SOM;
216 #ifdef HAVE_LRU_RESIZE_SUPPORT
217 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
218 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
220 #ifdef CONFIG_FS_POSIX_ACL
221 data->ocd_connect_flags |= OBD_CONNECT_ACL | OBD_CONNECT_UMASK;
224 if (OBD_FAIL_CHECK(OBD_FAIL_MDC_LIGHTWEIGHT))
225 /* flag mdc connection as lightweight, only used for test
226 * purpose, use with care */
227 data->ocd_connect_flags |= OBD_CONNECT_LIGHTWEIGHT;
229 data->ocd_ibits_known = MDS_INODELOCK_FULL;
230 data->ocd_version = LUSTRE_VERSION_CODE;
232 if (sb->s_flags & MS_RDONLY)
233 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
234 if (sbi->ll_flags & LL_SBI_USER_XATTR)
235 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
237 #ifdef HAVE_MS_FLOCK_LOCK
238 /* force vfs to use lustre handler for flock() calls - bug 10743 */
239 sb->s_flags |= MS_FLOCK_LOCK;
241 #ifdef MS_HAS_NEW_AOPS
242 sb->s_flags |= MS_HAS_NEW_AOPS;
245 if (sbi->ll_flags & LL_SBI_FLOCK)
246 sbi->ll_fop = &ll_file_operations_flock;
247 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
248 sbi->ll_fop = &ll_file_operations;
250 sbi->ll_fop = &ll_file_operations_noflock;
253 data->ocd_connect_flags |= OBD_CONNECT_REAL;
254 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
255 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
257 data->ocd_brw_size = MD_MAX_BRW_SIZE;
259 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
261 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
262 "recovery, of which this client is not a "
263 "part. Please wait for recovery to complete,"
264 " abort, or time out.\n", md);
267 CERROR("cannot connect to %s: rc = %d\n", md, err);
271 sbi->ll_md_exp->exp_connect_data = *data;
273 err = obd_fid_init(sbi->ll_md_exp->exp_obd, sbi->ll_md_exp,
274 LUSTRE_SEQ_METADATA);
276 CERROR("%s: Can't init metadata layer FID infrastructure, "
277 "rc = %d\n", sbi->ll_md_exp->exp_obd->obd_name, err);
281 /* For mount, we only need fs info from MDT0, and also in DNE, it
282 * can make sure the client can be mounted as long as MDT0 is
284 err = obd_statfs(NULL, sbi->ll_md_exp, osfs,
285 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
286 OBD_STATFS_FOR_MDT0);
288 GOTO(out_md_fid, err);
290 /* This needs to be after statfs to ensure connect has finished.
291 * Note that "data" does NOT contain the valid connect reply.
292 * If connecting to a 1.8 server there will be no LMV device, so
293 * we can access the MDC export directly and exp_connect_flags will
294 * be non-zero, but if accessing an upgraded 2.1 server it will
295 * have the correct flags filled in.
296 * XXX: fill in the LMV exp_connect_flags from MDC(s). */
297 valid = exp_connect_flags(sbi->ll_md_exp) & CLIENT_CONNECT_MDT_REQD;
298 if (exp_connect_flags(sbi->ll_md_exp) != 0 &&
299 valid != CLIENT_CONNECT_MDT_REQD) {
302 OBD_ALLOC_WAIT(buf, PAGE_CACHE_SIZE);
303 obd_connect_flags2str(buf, PAGE_CACHE_SIZE,
304 valid ^ CLIENT_CONNECT_MDT_REQD, ",");
305 LCONSOLE_ERROR_MSG(0x170, "Server %s does not support "
306 "feature(s) needed for correct operation "
307 "of this client (%s). Please upgrade "
308 "server or downgrade client.\n",
309 sbi->ll_md_exp->exp_obd->obd_name, buf);
310 OBD_FREE(buf, PAGE_CACHE_SIZE);
311 GOTO(out_md_fid, err = -EPROTO);
314 size = sizeof(*data);
315 err = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
316 KEY_CONN_DATA, &size, data, NULL);
318 CERROR("%s: Get connect data failed: rc = %d\n",
319 sbi->ll_md_exp->exp_obd->obd_name, err);
320 GOTO(out_md_fid, err);
323 LASSERT(osfs->os_bsize);
324 sb->s_blocksize = osfs->os_bsize;
325 sb->s_blocksize_bits = log2(osfs->os_bsize);
326 sb->s_magic = LL_SUPER_MAGIC;
327 sb->s_maxbytes = MAX_LFS_FILESIZE;
328 sbi->ll_namelen = osfs->os_namelen;
329 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
331 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
332 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
333 LCONSOLE_INFO("Disabling user_xattr feature because "
334 "it is not supported on the server\n");
335 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
338 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
340 sb->s_flags |= MS_POSIXACL;
342 sbi->ll_flags |= LL_SBI_ACL;
344 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
346 sb->s_flags &= ~MS_POSIXACL;
348 sbi->ll_flags &= ~LL_SBI_ACL;
351 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
352 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
353 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
354 LCONSOLE_INFO("client is set as remote by default.\n");
357 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
358 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
359 LCONSOLE_INFO("client claims to be remote, but server "
360 "rejected, forced to be local.\n");
364 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
365 LCONSOLE_INFO("client enabled MDS capability!\n");
366 sbi->ll_flags |= LL_SBI_MDS_CAPA;
369 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
370 LCONSOLE_INFO("client enabled OSS capability!\n");
371 sbi->ll_flags |= LL_SBI_OSS_CAPA;
374 if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
375 sbi->ll_flags |= LL_SBI_64BIT_HASH;
377 if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
378 sbi->ll_md_brw_size = data->ocd_brw_size;
380 sbi->ll_md_brw_size = PAGE_CACHE_SIZE;
382 if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK)
383 sbi->ll_flags |= LL_SBI_LAYOUT_LOCK;
385 if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) {
386 if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) {
387 LCONSOLE_INFO("%s: disabling xattr cache due to "
388 "unknown maximum xattr size.\n", dt);
390 sbi->ll_flags |= LL_SBI_XATTR_CACHE;
391 sbi->ll_xattr_cache_enabled = 1;
395 obd = class_name2obd(dt);
397 CERROR("DT %s: not setup or attached\n", dt);
398 GOTO(out_md_fid, err = -ENODEV);
401 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
402 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
403 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
404 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
405 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
406 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
407 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH |
408 OBD_CONNECT_MAXBYTES |
409 OBD_CONNECT_EINPROGRESS |
410 OBD_CONNECT_JOBSTATS | OBD_CONNECT_LVB_TYPE |
411 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_PINGLESS;
413 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
414 data->ocd_connect_flags |= OBD_CONNECT_SOM;
416 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
417 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
418 * disabled by default, because it can still be enabled on the
419 * fly via /proc. As a consequence, we still need to come to an
420 * agreement on the supported algorithms at connect time */
421 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
423 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
424 data->ocd_cksum_types = OBD_CKSUM_ADLER;
426 data->ocd_cksum_types = cksum_types_supported_client();
429 #ifdef HAVE_LRU_RESIZE_SUPPORT
430 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
432 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
433 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
435 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
436 "ocd_grant: %d\n", data->ocd_connect_flags,
437 data->ocd_version, data->ocd_grant);
439 obd->obd_upcall.onu_owner = &sbi->ll_lco;
440 obd->obd_upcall.onu_upcall = cl_ocd_update;
442 data->ocd_brw_size = DT_MAX_BRW_SIZE;
444 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data,
447 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
448 "recovery, of which this client is not a "
449 "part. Please wait for recovery to "
450 "complete, abort, or time out.\n", dt);
453 CERROR("%s: Cannot connect to %s: rc = %d\n",
454 sbi->ll_dt_exp->exp_obd->obd_name, dt, err);
458 sbi->ll_dt_exp->exp_connect_data = *data;
460 err = obd_fid_init(sbi->ll_dt_exp->exp_obd, sbi->ll_dt_exp,
461 LUSTRE_SEQ_METADATA);
463 CERROR("%s: Can't init data layer FID infrastructure, "
464 "rc = %d\n", sbi->ll_dt_exp->exp_obd->obd_name, err);
468 mutex_lock(&sbi->ll_lco.lco_lock);
469 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
470 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
471 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
472 mutex_unlock(&sbi->ll_lco.lco_lock);
474 fid_zero(&sbi->ll_root_fid);
475 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
477 CERROR("cannot mds_connect: rc = %d\n", err);
478 GOTO(out_lock_cn_cb, err);
480 if (!fid_is_sane(&sbi->ll_root_fid)) {
481 CERROR("%s: Invalid root fid "DFID" during mount\n",
482 sbi->ll_md_exp->exp_obd->obd_name,
483 PFID(&sbi->ll_root_fid));
484 GOTO(out_lock_cn_cb, err = -EINVAL);
486 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
488 sb->s_op = &lustre_super_operations;
489 #if THREAD_SIZE >= 8192 /*b=17630*/
490 sb->s_export_op = &lustre_export_operations;
494 * XXX: move this to after cbd setup? */
495 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA |
497 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
498 valid |= OBD_MD_FLRMTPERM;
499 else if (sbi->ll_flags & LL_SBI_ACL)
500 valid |= OBD_MD_FLACL;
502 OBD_ALLOC_PTR(op_data);
504 GOTO(out_lock_cn_cb, err = -ENOMEM);
506 op_data->op_fid1 = sbi->ll_root_fid;
507 op_data->op_mode = 0;
508 op_data->op_capa1 = oc;
509 op_data->op_valid = valid;
511 err = md_getattr(sbi->ll_md_exp, op_data, &request);
514 OBD_FREE_PTR(op_data);
516 CERROR("%s: md_getattr failed for root: rc = %d\n",
517 sbi->ll_md_exp->exp_obd->obd_name, err);
518 GOTO(out_lock_cn_cb, err);
521 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
522 sbi->ll_md_exp, &lmd);
524 CERROR("failed to understand root inode md: rc = %d\n", err);
525 ptlrpc_req_finished(request);
526 GOTO(out_lock_cn_cb, err);
529 LASSERT(fid_is_sane(&sbi->ll_root_fid));
530 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid,
531 sbi->ll_flags & LL_SBI_32BIT_API),
533 md_free_lustre_md(sbi->ll_md_exp, &lmd);
534 ptlrpc_req_finished(request);
536 if (root == NULL || IS_ERR(root)) {
538 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
539 #ifdef CONFIG_FS_POSIX_ACL
541 posix_acl_release(lmd.posix_acl);
542 lmd.posix_acl = NULL;
545 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
547 CERROR("lustre_lite: bad iget4 for root\n");
551 err = ll_close_thread_start(&sbi->ll_lcq);
553 CERROR("cannot start close thread: rc %d\n", err);
557 #ifdef CONFIG_FS_POSIX_ACL
558 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
559 rct_init(&sbi->ll_rct);
560 et_init(&sbi->ll_et);
564 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
565 err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
566 KEY_CHECKSUM, sizeof(checksum), &checksum,
570 err = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CACHE_SET),
571 KEY_CACHE_SET, sizeof(sbi->ll_cache),
572 &sbi->ll_cache, NULL);
574 sb->s_root = d_make_root(root);
575 if (sb->s_root == NULL) {
576 CERROR("%s: can't make root dentry\n",
577 ll_get_fsname(sb, NULL, 0));
578 GOTO(out_root, err = -ENOMEM);
580 #ifdef HAVE_DCACHE_LOCK
581 sb->s_root->d_op = &ll_d_ops;
584 sbi->ll_sdev_orig = sb->s_dev;
586 /* We set sb->s_dev equal on all lustre clients in order to support
587 * NFS export clustering. NFSD requires that the FSID be the same
589 /* s_dev is also used in lt_compare() to compare two fs, but that is
590 * only a node-local comparison. */
591 uuid = obd_get_uuid(sbi->ll_md_exp);
593 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
599 if (proc_lustre_fs_root != NULL) {
600 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
603 CERROR("%s: could not register mount in lprocfs: "
604 "rc = %d\n", ll_get_fsname(sb, NULL, 0), err);
614 obd_fid_fini(sbi->ll_dt_exp->exp_obd);
616 obd_disconnect(sbi->ll_dt_exp);
617 sbi->ll_dt_exp = NULL;
618 /* Make sure all OScs are gone, since cl_cache is accessing sbi. */
619 obd_zombie_barrier();
621 obd_fid_fini(sbi->ll_md_exp->exp_obd);
623 obd_disconnect(sbi->ll_md_exp);
624 sbi->ll_md_exp = NULL;
633 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
637 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
639 rc = obd_get_info(NULL, sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
640 KEY_MAX_EASIZE, &size, lmmsize, NULL);
642 CERROR("Get max mdsize error rc %d \n", rc);
647 void ll_dump_inode(struct inode *inode)
649 struct ll_d_hlist_node *tmp;
650 int dentry_count = 0;
652 LASSERT(inode != NULL);
654 ll_d_hlist_for_each(tmp, &inode->i_dentry)
657 CERROR("%s: inode %p dump: dev=%s fid="DFID
658 " mode=%o count=%u, %d dentries\n",
659 ll_get_fsname(inode->i_sb, NULL, 0), inode,
660 ll_i2mdexp(inode)->exp_obd->obd_name, PFID(ll_inode2fid(inode)),
661 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
664 void lustre_dump_dentry(struct dentry *dentry, int recur)
666 struct list_head *tmp;
669 LASSERT(dentry != NULL);
671 list_for_each(tmp, &dentry->d_subdirs)
674 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
675 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
676 dentry->d_name.len, dentry->d_name.name,
677 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
678 dentry->d_parent, dentry->d_inode, d_count(dentry),
679 dentry->d_flags, dentry->d_fsdata, subdirs);
680 if (dentry->d_inode != NULL)
681 ll_dump_inode(dentry->d_inode);
686 list_for_each(tmp, &dentry->d_subdirs) {
687 struct dentry *d = list_entry(tmp, struct dentry, d_u.d_child);
688 lustre_dump_dentry(d, recur - 1);
692 void client_common_put_super(struct super_block *sb)
694 struct ll_sb_info *sbi = ll_s2sbi(sb);
697 #ifdef CONFIG_FS_POSIX_ACL
698 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
699 et_fini(&sbi->ll_et);
700 rct_fini(&sbi->ll_rct);
704 ll_close_thread_shutdown(sbi->ll_lcq);
708 cfs_list_del(&sbi->ll_conn_chain);
710 obd_fid_fini(sbi->ll_dt_exp->exp_obd);
711 obd_disconnect(sbi->ll_dt_exp);
712 sbi->ll_dt_exp = NULL;
713 /* wait till all OSCs are gone, since cl_cache is accessing sbi.
715 obd_zombie_barrier();
717 lprocfs_unregister_mountpoint(sbi);
719 obd_fid_fini(sbi->ll_md_exp->exp_obd);
720 obd_disconnect(sbi->ll_md_exp);
721 sbi->ll_md_exp = NULL;
726 void ll_kill_super(struct super_block *sb)
728 struct ll_sb_info *sbi;
733 if (!(sb->s_flags & MS_ACTIVE))
737 /* we need restore s_dev from changed for clustred NFS before put_super
738 * because new kernels have cached s_dev and change sb->s_dev in
739 * put_super not affected real removing devices */
741 sb->s_dev = sbi->ll_sdev_orig;
742 sbi->ll_umounting = 1;
747 char *ll_read_opt(const char *opt, char *data)
753 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
754 if (strncmp(opt, data, strlen(opt)))
756 if ((value = strchr(data, '=')) == NULL)
760 OBD_ALLOC(retval, strlen(value) + 1);
762 CERROR("out of memory!\n");
766 memcpy(retval, value, strlen(value)+1);
767 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
771 static inline int ll_set_opt(const char *opt, char *data, int fl)
773 if (strncmp(opt, data, strlen(opt)) != 0)
779 /* non-client-specific mount options are parsed in lmd_parse */
780 static int ll_options(char *options, int *flags)
783 char *s1 = options, *s2;
789 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
792 CDEBUG(D_SUPER, "next opt=%s\n", s1);
793 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
798 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
803 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
808 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
813 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
818 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
823 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 6, 51, 0)
824 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
826 /* Ignore deprecated mount option. The client will
827 * always try to mount with ACL support, whether this
828 * is used depends on whether server supports it. */
829 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
830 "mount option 'acl'.\n");
833 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
835 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
836 "mount option 'noacl'.\n");
840 #warning "{no}acl options have been deprecated since 1.8, please remove them"
842 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
847 tmp = ll_set_opt("user_fid2path", s1, LL_SBI_USER_FID2PATH);
852 tmp = ll_set_opt("nouser_fid2path", s1, LL_SBI_USER_FID2PATH);
858 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
863 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
868 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
873 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
878 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
883 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
888 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
893 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
898 tmp = ll_set_opt("verbose", s1, LL_SBI_VERBOSE);
903 tmp = ll_set_opt("noverbose", s1, LL_SBI_VERBOSE);
908 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
914 s2 = strchr(s1, ',');
922 void ll_lli_init(struct ll_inode_info *lli)
924 lli->lli_inode_magic = LLI_INODE_MAGIC;
926 lli->lli_ioepoch = 0;
927 lli->lli_maxbytes = MAX_LFS_FILESIZE;
928 spin_lock_init(&lli->lli_lock);
929 lli->lli_posix_acl = NULL;
930 lli->lli_remote_perms = NULL;
931 mutex_init(&lli->lli_rmtperm_mutex);
932 /* Do not set lli_fid, it has been initialized already. */
933 fid_zero(&lli->lli_pfid);
934 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
935 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
936 cfs_atomic_set(&lli->lli_open_count, 0);
937 lli->lli_mds_capa = NULL;
938 lli->lli_rmtperm_time = 0;
939 lli->lli_pending_och = NULL;
940 lli->lli_mds_read_och = NULL;
941 lli->lli_mds_write_och = NULL;
942 lli->lli_mds_exec_och = NULL;
943 lli->lli_open_fd_read_count = 0;
944 lli->lli_open_fd_write_count = 0;
945 lli->lli_open_fd_exec_count = 0;
946 mutex_init(&lli->lli_och_mutex);
947 spin_lock_init(&lli->lli_agl_lock);
948 lli->lli_has_smd = false;
949 lli->lli_layout_gen = LL_LAYOUT_GEN_NONE;
950 lli->lli_clob = NULL;
952 init_rwsem(&lli->lli_xattrs_list_rwsem);
953 mutex_init(&lli->lli_xattrs_enq_lock);
955 LASSERT(lli->lli_vfs_inode.i_mode != 0);
956 if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
957 mutex_init(&lli->lli_readdir_mutex);
958 lli->lli_opendir_key = NULL;
960 lli->lli_def_acl = NULL;
961 spin_lock_init(&lli->lli_sa_lock);
962 lli->lli_opendir_pid = 0;
964 sema_init(&lli->lli_size_sem, 1);
965 lli->lli_size_sem_owner = NULL;
966 lli->lli_symlink_name = NULL;
967 init_rwsem(&lli->lli_trunc_sem);
968 mutex_init(&lli->lli_write_mutex);
969 init_rwsem(&lli->lli_glimpse_sem);
970 lli->lli_glimpse_time = 0;
971 CFS_INIT_LIST_HEAD(&lli->lli_agl_list);
972 lli->lli_agl_index = 0;
973 lli->lli_async_rc = 0;
974 lli->lli_volatile = false;
976 mutex_init(&lli->lli_layout_mutex);
979 static inline int ll_bdi_register(struct backing_dev_info *bdi)
981 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
983 bdi->name = "lustre";
984 return bdi_register(bdi, NULL, "lustre-%d",
985 atomic_inc_return(&ll_bdi_num));
988 int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
990 struct lustre_profile *lprof = NULL;
991 struct lustre_sb_info *lsi = s2lsi(sb);
992 struct ll_sb_info *sbi;
993 char *dt = NULL, *md = NULL;
994 char *profilenm = get_profile_name(sb);
995 struct config_llog_instance *cfg;
996 /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */
997 const int instlen = sizeof(cfg->cfg_instance) * 2 + 2;
1001 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
1007 try_module_get(THIS_MODULE);
1009 /* client additional sb info */
1010 lsi->lsi_llsbi = sbi = ll_init_sbi();
1012 module_put(THIS_MODULE);
1017 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
1019 GOTO(out_free, err);
1021 err = bdi_init(&lsi->lsi_bdi);
1023 GOTO(out_free, err);
1024 lsi->lsi_flags |= LSI_BDI_INITIALIZED;
1025 lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
1026 err = ll_bdi_register(&lsi->lsi_bdi);
1028 GOTO(out_free, err);
1030 sb->s_bdi = &lsi->lsi_bdi;
1031 #ifndef HAVE_DCACHE_LOCK
1032 /* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
1033 sb->s_d_op = &ll_d_ops;
1036 /* Generate a string unique to this super, in case some joker tries
1037 to mount the same fs at two mount points.
1038 Use the address of the super itself.*/
1039 cfg->cfg_instance = sb;
1040 cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
1041 cfg->cfg_callback = class_config_llog_handler;
1042 /* set up client obds */
1043 err = lustre_process_log(sb, profilenm, cfg);
1045 GOTO(out_free, err);
1047 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
1048 lprof = class_get_profile(profilenm);
1049 if (lprof == NULL) {
1050 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
1051 " read from the MGS. Does that filesystem "
1052 "exist?\n", profilenm);
1053 GOTO(out_free, err = -EINVAL);
1055 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
1056 lprof->lp_md, lprof->lp_dt);
1058 OBD_ALLOC(dt, strlen(lprof->lp_dt) + instlen + 2);
1060 GOTO(out_free, err = -ENOMEM);
1061 sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
1063 OBD_ALLOC(md, strlen(lprof->lp_md) + instlen + 2);
1065 GOTO(out_free, err = -ENOMEM);
1066 sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance);
1068 /* connections, registrations, sb setup */
1069 err = client_common_fill_super(sb, md, dt, mnt);
1073 OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2);
1075 OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2);
1078 else if (sbi->ll_flags & LL_SBI_VERBOSE)
1079 LCONSOLE_WARN("Mounted %s\n", profilenm);
1083 } /* ll_fill_super */
1086 void lu_context_keys_dump(void);
1088 void ll_put_super(struct super_block *sb)
1090 struct config_llog_instance cfg, params_cfg;
1091 struct obd_device *obd;
1092 struct lustre_sb_info *lsi = s2lsi(sb);
1093 struct ll_sb_info *sbi = ll_s2sbi(sb);
1094 char *profilenm = get_profile_name(sb);
1095 int ccc_count, next, force = 1, rc = 0;
1098 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
1100 ll_print_capa_stat(sbi);
1102 cfg.cfg_instance = sb;
1103 lustre_end_log(sb, profilenm, &cfg);
1105 params_cfg.cfg_instance = sb;
1106 lustre_end_log(sb, PARAMS_FILENAME, ¶ms_cfg);
1108 if (sbi->ll_md_exp) {
1109 obd = class_exp2obd(sbi->ll_md_exp);
1111 force = obd->obd_force;
1114 /* Wait for unstable pages to be committed to stable storage */
1116 struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
1117 rc = l_wait_event(sbi->ll_cache.ccc_unstable_waitq,
1118 cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr) == 0,
1122 ccc_count = cfs_atomic_read(&sbi->ll_cache.ccc_unstable_nr);
1123 if (force == 0 && rc != -EINTR)
1124 LASSERTF(ccc_count == 0, "count: %i\n", ccc_count);
1127 /* We need to set force before the lov_disconnect in
1128 lustre_common_put_super, since l_d cleans up osc's as well. */
1131 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
1133 obd->obd_force = force;
1138 /* Only if client_common_fill_super succeeded */
1139 client_common_put_super(sb);
1143 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
1144 class_manual_cleanup(obd);
1147 if (sbi->ll_flags & LL_SBI_VERBOSE)
1148 LCONSOLE_WARN("Unmounted %s\n", profilenm ? profilenm : "");
1151 class_del_profile(profilenm);
1153 if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
1154 bdi_destroy(&lsi->lsi_bdi);
1155 lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
1159 lsi->lsi_llsbi = NULL;
1161 lustre_common_put_super(sb);
1163 cl_env_cache_purge(~0);
1165 module_put(THIS_MODULE);
1168 } /* client_put_super */
1170 struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
1172 struct inode *inode = NULL;
1174 /* NOTE: we depend on atomic igrab() -bzzz */
1175 lock_res_and_lock(lock);
1176 if (lock->l_resource->lr_lvb_inode) {
1177 struct ll_inode_info * lli;
1178 lli = ll_i2info(lock->l_resource->lr_lvb_inode);
1179 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1180 inode = igrab(lock->l_resource->lr_lvb_inode);
1182 inode = lock->l_resource->lr_lvb_inode;
1183 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1184 D_WARNING, lock, "lr_lvb_inode %p is "
1185 "bogus: magic %08x",
1186 lock->l_resource->lr_lvb_inode,
1187 lli->lli_inode_magic);
1191 unlock_res_and_lock(lock);
1195 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1197 struct inode *inode = NULL;
1198 /* NOTE: we depend on atomic igrab() -bzzz */
1199 lock_res_and_lock(lock);
1200 if (lock->l_ast_data) {
1201 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1202 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1203 inode = igrab(lock->l_ast_data);
1205 inode = lock->l_ast_data;
1206 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1207 D_WARNING, lock, "l_ast_data %p is "
1208 "bogus: magic %08x", lock->l_ast_data,
1209 lli->lli_inode_magic);
1213 unlock_res_and_lock(lock);
1217 static void ll_dir_clear_lsm_md(struct inode *inode)
1219 struct ll_inode_info *lli = ll_i2info(inode);
1221 LASSERT(S_ISDIR(inode->i_mode));
1223 if (lli->lli_lsm_md != NULL) {
1224 lmv_free_memmd(lli->lli_lsm_md);
1225 lli->lli_lsm_md = NULL;
1229 static struct inode *ll_iget_anon_dir(struct super_block *sb,
1230 const struct lu_fid *fid,
1231 struct lustre_md *md)
1233 struct ll_sb_info *sbi = ll_s2sbi(sb);
1234 struct mdt_body *body = md->body;
1235 struct inode *inode;
1239 ino = cl_fid_build_ino(fid, sbi->ll_flags & LL_SBI_32BIT_API);
1240 inode = iget_locked(sb, ino);
1241 if (inode == NULL) {
1242 CERROR("%s: failed get simple inode "DFID": rc = -ENOENT\n",
1243 ll_get_fsname(sb, NULL, 0), PFID(fid));
1244 RETURN(ERR_PTR(-ENOENT));
1247 if (inode->i_state & I_NEW) {
1248 struct ll_inode_info *lli = ll_i2info(inode);
1249 struct lmv_stripe_md *lsm = md->lmv;
1251 inode->i_mode = (inode->i_mode & ~S_IFMT) |
1252 (body->mode & S_IFMT);
1253 LASSERTF(S_ISDIR(inode->i_mode), "Not slave inode "DFID"\n",
1256 LTIME_S(inode->i_mtime) = 0;
1257 LTIME_S(inode->i_atime) = 0;
1258 LTIME_S(inode->i_ctime) = 0;
1261 /* initializing backing dev info. */
1262 inode->i_mapping->backing_dev_info =
1263 &s2lsi(inode->i_sb)->lsi_bdi;
1264 inode->i_op = &ll_dir_inode_operations;
1265 inode->i_fop = &ll_dir_operations;
1266 lli->lli_fid = *fid;
1269 LASSERT(lsm != NULL);
1270 /* master stripe FID */
1271 lli->lli_pfid = lsm->lsm_md_oinfo[0].lmo_fid;
1272 CDEBUG(D_INODE, "lli %p master "DFID" slave "DFID"\n",
1273 lli, PFID(fid), PFID(&lli->lli_pfid));
1274 unlock_new_inode(inode);
1280 static int ll_init_lsm_md(struct inode *inode, struct lustre_md *md)
1283 struct lmv_stripe_md *lsm = md->lmv;
1286 LASSERT(lsm != NULL);
1287 /* XXX sigh, this lsm_root initialization should be in
1288 * LMV layer, but it needs ll_iget right now, so we
1289 * put this here right now. */
1290 for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
1291 fid = &lsm->lsm_md_oinfo[i].lmo_fid;
1292 LASSERT(lsm->lsm_md_oinfo[i].lmo_root == NULL);
1294 lsm->lsm_md_oinfo[i].lmo_root = inode;
1296 /* Unfortunately ll_iget will call ll_update_inode,
1297 * where the initialization of slave inode is slightly
1298 * different, so it reset lsm_md to NULL to avoid
1299 * initializing lsm for slave inode. */
1300 lsm->lsm_md_oinfo[i].lmo_root =
1301 ll_iget_anon_dir(inode->i_sb, fid, md);
1302 if (IS_ERR(lsm->lsm_md_oinfo[i].lmo_root)) {
1303 int rc = PTR_ERR(lsm->lsm_md_oinfo[i].lmo_root);
1305 lsm->lsm_md_oinfo[i].lmo_root = NULL;
1311 /* Here is where the lsm is being initialized(fill lmo_info) after
1312 * client retrieve MD stripe information from MDT. */
1313 return md_update_lsm_md(ll_i2mdexp(inode), lsm, md->body,
1314 ll_md_blocking_ast);
1317 static inline int lli_lsm_md_eq(const struct lmv_stripe_md *lsm_md1,
1318 const struct lmv_stripe_md *lsm_md2)
1320 return lsm_md1->lsm_md_magic == lsm_md2->lsm_md_magic &&
1321 lsm_md1->lsm_md_stripe_count == lsm_md2->lsm_md_stripe_count &&
1322 lsm_md1->lsm_md_master_mdt_index ==
1323 lsm_md2->lsm_md_master_mdt_index &&
1324 lsm_md1->lsm_md_hash_type == lsm_md2->lsm_md_hash_type &&
1325 lsm_md1->lsm_md_layout_version ==
1326 lsm_md2->lsm_md_layout_version &&
1327 strcmp(lsm_md1->lsm_md_pool_name,
1328 lsm_md2->lsm_md_pool_name) == 0;
1331 static void ll_update_lsm_md(struct inode *inode, struct lustre_md *md)
1333 struct ll_inode_info *lli = ll_i2info(inode);
1334 struct lmv_stripe_md *lsm = md->lmv;
1337 LASSERT(lsm != NULL);
1338 LASSERT(S_ISDIR(inode->i_mode));
1339 if (lli->lli_lsm_md == NULL) {
1342 rc = ll_init_lsm_md(inode, md);
1344 CERROR("%s: init "DFID" failed: rc = %d\n",
1345 ll_get_fsname(inode->i_sb, NULL, 0),
1346 PFID(&lli->lli_fid), rc);
1349 lli->lli_lsm_md = lsm;
1350 /* set lsm_md to NULL, so the following free lustre_md
1351 * will not free this lsm */
1356 /* Compare the old and new stripe information */
1357 if (!lli_lsm_md_eq(lli->lli_lsm_md, lsm)) {
1358 CERROR("inode %p %lu mismatch\n"
1359 " new(%p) vs lli_lsm_md(%p):\n"
1363 " hash_type: %x %x\n"
1366 inode, inode->i_ino, lsm, lli->lli_lsm_md,
1367 lsm->lsm_md_magic, lli->lli_lsm_md->lsm_md_magic,
1368 lsm->lsm_md_stripe_count,
1369 lli->lli_lsm_md->lsm_md_stripe_count,
1370 lsm->lsm_md_master_mdt_index,
1371 lli->lli_lsm_md->lsm_md_master_mdt_index,
1372 lsm->lsm_md_hash_type, lli->lli_lsm_md->lsm_md_hash_type,
1373 lsm->lsm_md_layout_version,
1374 lli->lli_lsm_md->lsm_md_layout_version,
1375 lsm->lsm_md_pool_name,
1376 lli->lli_lsm_md->lsm_md_pool_name);
1380 for (idx = 0; idx < lli->lli_lsm_md->lsm_md_stripe_count; idx++) {
1381 if (!lu_fid_eq(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid,
1382 &lsm->lsm_md_oinfo[idx].lmo_fid)) {
1383 CERROR("%s: FID in lsm mismatch idx %d, old: "DFID
1385 ll_get_fsname(inode->i_sb, NULL, 0), idx,
1386 PFID(&lli->lli_lsm_md->lsm_md_oinfo[idx].lmo_fid),
1387 PFID(&lsm->lsm_md_oinfo[idx].lmo_fid));
1392 md_update_lsm_md(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md,
1393 md->body, ll_md_blocking_ast);
1396 void ll_clear_inode(struct inode *inode)
1398 struct ll_inode_info *lli = ll_i2info(inode);
1399 struct ll_sb_info *sbi = ll_i2sbi(inode);
1402 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
1403 PFID(ll_inode2fid(inode)), inode);
1405 if (S_ISDIR(inode->i_mode)) {
1406 /* these should have been cleared in ll_file_release */
1407 LASSERT(lli->lli_opendir_key == NULL);
1408 LASSERT(lli->lli_sai == NULL);
1409 LASSERT(lli->lli_opendir_pid == 0);
1412 spin_lock(&lli->lli_lock);
1413 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1414 spin_unlock(&lli->lli_lock);
1415 md_null_inode(sbi->ll_md_exp, ll_inode2fid(inode));
1417 LASSERT(!lli->lli_open_fd_write_count);
1418 LASSERT(!lli->lli_open_fd_read_count);
1419 LASSERT(!lli->lli_open_fd_exec_count);
1421 if (lli->lli_mds_write_och)
1422 ll_md_real_close(inode, FMODE_WRITE);
1423 if (lli->lli_mds_exec_och)
1424 ll_md_real_close(inode, FMODE_EXEC);
1425 if (lli->lli_mds_read_och)
1426 ll_md_real_close(inode, FMODE_READ);
1428 if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) {
1429 OBD_FREE(lli->lli_symlink_name,
1430 strlen(lli->lli_symlink_name) + 1);
1431 lli->lli_symlink_name = NULL;
1434 ll_xattr_cache_destroy(inode);
1436 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1437 LASSERT(lli->lli_posix_acl == NULL);
1438 if (lli->lli_remote_perms) {
1439 free_rmtperm_hash(lli->lli_remote_perms);
1440 lli->lli_remote_perms = NULL;
1443 #ifdef CONFIG_FS_POSIX_ACL
1444 else if (lli->lli_posix_acl) {
1445 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1446 LASSERT(lli->lli_remote_perms == NULL);
1447 posix_acl_release(lli->lli_posix_acl);
1448 lli->lli_posix_acl = NULL;
1451 lli->lli_inode_magic = LLI_INODE_DEAD;
1453 ll_clear_inode_capas(inode);
1454 if (S_ISDIR(inode->i_mode))
1455 ll_dir_clear_lsm_md(inode);
1457 LASSERT(list_empty(&lli->lli_agl_list));
1460 * XXX This has to be done before lsm is freed below, because
1461 * cl_object still uses inode lsm.
1463 cl_inode_fini(inode);
1464 lli->lli_has_smd = false;
1469 int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
1470 struct md_open_data **mod)
1472 struct lustre_md md;
1473 struct inode *inode = dentry->d_inode;
1474 struct ll_sb_info *sbi = ll_i2sbi(inode);
1475 struct ptlrpc_request *request = NULL;
1479 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1480 LUSTRE_OPC_ANY, NULL);
1481 if (IS_ERR(op_data))
1482 RETURN(PTR_ERR(op_data));
1484 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1487 ptlrpc_req_finished(request);
1488 if (rc == -ENOENT) {
1490 /* Unlinked special device node? Or just a race?
1491 * Pretend we done everything. */
1492 if (!S_ISREG(inode->i_mode) &&
1493 !S_ISDIR(inode->i_mode)) {
1494 ia_valid = op_data->op_attr.ia_valid;
1495 op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS;
1496 rc = simple_setattr(dentry, &op_data->op_attr);
1497 op_data->op_attr.ia_valid = ia_valid;
1499 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1500 CERROR("md_setattr fails: rc = %d\n", rc);
1505 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1506 sbi->ll_md_exp, &md);
1508 ptlrpc_req_finished(request);
1512 ia_valid = op_data->op_attr.ia_valid;
1513 /* inode size will be in ll_setattr_ost, can't do it now since dirty
1514 * cache is not cleared yet. */
1515 op_data->op_attr.ia_valid &= ~(TIMES_SET_FLAGS | ATTR_SIZE);
1516 rc = simple_setattr(dentry, &op_data->op_attr);
1517 op_data->op_attr.ia_valid = ia_valid;
1519 /* Extract epoch data if obtained. */
1520 op_data->op_handle = md.body->handle;
1521 op_data->op_ioepoch = md.body->ioepoch;
1523 ll_update_inode(inode, &md);
1524 ptlrpc_req_finished(request);
1529 /* Close IO epoch and send Size-on-MDS attribute update. */
1530 static int ll_setattr_done_writing(struct inode *inode,
1531 struct md_op_data *op_data,
1532 struct md_open_data *mod)
1534 struct ll_inode_info *lli = ll_i2info(inode);
1538 LASSERT(op_data != NULL);
1539 if (!S_ISREG(inode->i_mode))
1542 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1543 op_data->op_ioepoch, PFID(&lli->lli_fid));
1545 op_data->op_flags = MF_EPOCH_CLOSE;
1546 ll_done_writing_attr(inode, op_data);
1547 ll_pack_inode2opdata(inode, op_data, NULL);
1549 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1550 if (rc == -EAGAIN) {
1551 /* MDS has instructed us to obtain Size-on-MDS attribute
1552 * from OSTs and send setattr to back to MDS. */
1553 rc = ll_som_update(inode, op_data);
1555 CERROR("%s: inode "DFID" mdc truncate failed: rc = %d\n",
1556 ll_i2sbi(inode)->ll_md_exp->exp_obd->obd_name,
1557 PFID(ll_inode2fid(inode)), rc);
1562 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1564 struct obd_capa *capa;
1567 if (attr->ia_valid & ATTR_SIZE)
1568 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1570 capa = ll_mdscapa_get(inode);
1572 rc = cl_setattr_ost(inode, attr, capa);
1574 if (attr->ia_valid & ATTR_SIZE)
1575 ll_truncate_free_capa(capa);
1582 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1583 * object(s) determine the file size and mtime. Otherwise, the MDS will
1584 * keep these values until such a time that objects are allocated for it.
1585 * We do the MDS operations first, as it is checking permissions for us.
1586 * We don't to the MDS RPC if there is nothing that we want to store there,
1587 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1588 * going to do an RPC anyways.
1590 * If we are doing a truncate, we will send the mtime and ctime updates
1591 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1592 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1595 * In case of HSMimport, we only set attr on MDS.
1597 int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import)
1599 struct inode *inode = dentry->d_inode;
1600 struct ll_inode_info *lli = ll_i2info(inode);
1601 struct md_op_data *op_data = NULL;
1602 struct md_open_data *mod = NULL;
1603 bool file_is_released = false;
1604 int rc = 0, rc1 = 0;
1607 CDEBUG(D_VFSTRACE, "%s: setattr inode "DFID"(%p) from %llu to %llu, "
1608 "valid %x, hsm_import %d\n",
1609 ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid),
1610 inode, i_size_read(inode), attr->ia_size, attr->ia_valid,
1613 if (attr->ia_valid & ATTR_SIZE) {
1614 /* Check new size against VFS/VM file size limit and rlimit */
1615 rc = inode_newsize_ok(inode, attr->ia_size);
1619 /* The maximum Lustre file size is variable, based on the
1620 * OST maximum object size and number of stripes. This
1621 * needs another check in addition to the VFS check above. */
1622 if (attr->ia_size > ll_file_maxbytes(inode)) {
1623 CDEBUG(D_INODE,"file "DFID" too large %llu > "LPU64"\n",
1624 PFID(&lli->lli_fid), attr->ia_size,
1625 ll_file_maxbytes(inode));
1629 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1632 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1633 if (attr->ia_valid & TIMES_SET_FLAGS) {
1634 if (current_fsuid() != inode->i_uid &&
1635 !cfs_capable(CFS_CAP_FOWNER))
1639 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1640 if (attr->ia_valid & ATTR_CTIME) {
1641 attr->ia_ctime = CFS_CURRENT_TIME;
1642 attr->ia_valid |= ATTR_CTIME_SET;
1644 if (!(attr->ia_valid & ATTR_ATIME_SET) &&
1645 (attr->ia_valid & ATTR_ATIME)) {
1646 attr->ia_atime = CFS_CURRENT_TIME;
1647 attr->ia_valid |= ATTR_ATIME_SET;
1649 if (!(attr->ia_valid & ATTR_MTIME_SET) &&
1650 (attr->ia_valid & ATTR_MTIME)) {
1651 attr->ia_mtime = CFS_CURRENT_TIME;
1652 attr->ia_valid |= ATTR_MTIME_SET;
1655 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1656 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1657 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1658 cfs_time_current_sec());
1660 /* We always do an MDS RPC, even if we're only changing the size;
1661 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1663 OBD_ALLOC_PTR(op_data);
1664 if (op_data == NULL)
1667 if (!S_ISDIR(inode->i_mode)) {
1668 if (attr->ia_valid & ATTR_SIZE)
1669 inode_dio_write_done(inode);
1670 mutex_unlock(&inode->i_mutex);
1671 down_write(&lli->lli_trunc_sem);
1674 /* truncate on a released file must failed with -ENODATA,
1675 * so size must not be set on MDS for released file
1676 * but other attributes must be set
1678 if (S_ISREG(inode->i_mode)) {
1679 struct lov_stripe_md *lsm;
1682 ll_layout_refresh(inode, &gen);
1683 lsm = ccc_inode_lsm_get(inode);
1684 if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED)
1685 file_is_released = true;
1686 ccc_inode_lsm_put(inode, lsm);
1688 if (!hsm_import && attr->ia_valid & ATTR_SIZE) {
1689 if (file_is_released) {
1690 rc = ll_layout_restore(inode, 0, attr->ia_size);
1694 file_is_released = false;
1695 ll_layout_refresh(inode, &gen);
1698 /* If we are changing file size, file content is
1699 * modified, flag it. */
1700 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1701 spin_lock(&lli->lli_lock);
1702 lli->lli_flags |= LLIF_DATA_MODIFIED;
1703 spin_unlock(&lli->lli_lock);
1704 op_data->op_bias |= MDS_DATA_MODIFIED;
1708 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1710 /* Open epoch for truncate. */
1711 if (exp_connect_som(ll_i2mdexp(inode)) && !hsm_import &&
1712 (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1713 op_data->op_flags = MF_EPOCH_OPEN;
1715 rc = ll_md_setattr(dentry, op_data, &mod);
1719 /* RPC to MDT is sent, cancel data modification flag */
1720 if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
1721 spin_lock(&lli->lli_lock);
1722 lli->lli_flags &= ~LLIF_DATA_MODIFIED;
1723 spin_unlock(&lli->lli_lock);
1726 ll_ioepoch_open(lli, op_data->op_ioepoch);
1727 if (!S_ISREG(inode->i_mode) || file_is_released)
1730 if (attr->ia_valid & (ATTR_SIZE |
1731 ATTR_ATIME | ATTR_ATIME_SET |
1732 ATTR_MTIME | ATTR_MTIME_SET)) {
1733 /* For truncate and utimes sending attributes to OSTs, setting
1734 * mtime/atime to the past will be performed under PW [0:EOF]
1735 * extent lock (new_size:EOF for truncate). It may seem
1736 * excessive to send mtime/atime updates to OSTs when not
1737 * setting times to past, but it is necessary due to possible
1738 * time de-synchronization between MDT inode and OST objects */
1739 rc = ll_setattr_ost(inode, attr);
1744 if (op_data->op_ioepoch) {
1745 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1749 ll_finish_md_op_data(op_data);
1751 if (!S_ISDIR(inode->i_mode)) {
1752 up_write(&lli->lli_trunc_sem);
1753 mutex_lock(&inode->i_mutex);
1754 if ((attr->ia_valid & ATTR_SIZE) && !hsm_import)
1755 inode_dio_wait(inode);
1758 ll_stats_ops_tally(ll_i2sbi(inode), (attr->ia_valid & ATTR_SIZE) ?
1759 LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1);
1764 int ll_setattr(struct dentry *de, struct iattr *attr)
1766 int mode = de->d_inode->i_mode;
1768 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1769 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1770 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1772 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1773 (ATTR_SIZE|ATTR_MODE)) &&
1774 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1775 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1776 !(attr->ia_mode & S_ISGID))))
1777 attr->ia_valid |= ATTR_FORCE;
1779 if ((mode & S_ISUID) &&
1780 !(attr->ia_mode & S_ISUID) &&
1781 !(attr->ia_valid & ATTR_KILL_SUID))
1782 attr->ia_valid |= ATTR_KILL_SUID;
1784 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1785 !(attr->ia_mode & S_ISGID) &&
1786 !(attr->ia_valid & ATTR_KILL_SGID))
1787 attr->ia_valid |= ATTR_KILL_SGID;
1789 return ll_setattr_raw(de, attr, false);
1792 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1793 __u64 max_age, __u32 flags)
1795 struct ll_sb_info *sbi = ll_s2sbi(sb);
1796 struct obd_statfs obd_osfs;
1800 rc = obd_statfs(NULL, sbi->ll_md_exp, osfs, max_age, flags);
1802 CERROR("md_statfs fails: rc = %d\n", rc);
1806 osfs->os_type = sb->s_magic;
1808 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1809 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1811 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1812 flags |= OBD_STATFS_NODELAY;
1814 rc = obd_statfs_rqset(sbi->ll_dt_exp, &obd_osfs, max_age, flags);
1816 CERROR("obd_statfs fails: rc = %d\n", rc);
1820 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1821 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1824 osfs->os_bsize = obd_osfs.os_bsize;
1825 osfs->os_blocks = obd_osfs.os_blocks;
1826 osfs->os_bfree = obd_osfs.os_bfree;
1827 osfs->os_bavail = obd_osfs.os_bavail;
1829 /* If we don't have as many objects free on the OST as inodes
1830 * on the MDS, we reduce the total number of inodes to
1831 * compensate, so that the "inodes in use" number is correct.
1833 if (obd_osfs.os_ffree < osfs->os_ffree) {
1834 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1836 osfs->os_ffree = obd_osfs.os_ffree;
1841 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1843 struct super_block *sb = de->d_sb;
1844 struct obd_statfs osfs;
1845 __u64 fsid = huge_encode_dev(sb->s_dev);
1848 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1849 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1851 /* Some amount of caching on the client is allowed */
1852 rc = ll_statfs_internal(sb, &osfs,
1853 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1858 statfs_unpack(sfs, &osfs);
1860 /* We need to downshift for all 32-bit kernels, because we can't
1861 * tell if the kernel is being called via sys_statfs64() or not.
1862 * Stop before overflowing f_bsize - in which case it is better
1863 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1864 if (sizeof(long) < 8) {
1865 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1868 osfs.os_blocks >>= 1;
1869 osfs.os_bfree >>= 1;
1870 osfs.os_bavail >>= 1;
1874 sfs->f_blocks = osfs.os_blocks;
1875 sfs->f_bfree = osfs.os_bfree;
1876 sfs->f_bavail = osfs.os_bavail;
1877 sfs->f_fsid.val[0] = (__u32)fsid;
1878 sfs->f_fsid.val[1] = (__u32)(fsid >> 32);
1882 void ll_inode_size_lock(struct inode *inode)
1884 struct ll_inode_info *lli;
1886 LASSERT(!S_ISDIR(inode->i_mode));
1888 lli = ll_i2info(inode);
1889 LASSERT(lli->lli_size_sem_owner != current);
1890 down(&lli->lli_size_sem);
1891 LASSERT(lli->lli_size_sem_owner == NULL);
1892 lli->lli_size_sem_owner = current;
1895 void ll_inode_size_unlock(struct inode *inode)
1897 struct ll_inode_info *lli;
1899 lli = ll_i2info(inode);
1900 LASSERT(lli->lli_size_sem_owner == current);
1901 lli->lli_size_sem_owner = NULL;
1902 up(&lli->lli_size_sem);
1905 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1907 struct ll_inode_info *lli = ll_i2info(inode);
1908 struct mdt_body *body = md->body;
1909 struct lov_stripe_md *lsm = md->lsm;
1910 struct ll_sb_info *sbi = ll_i2sbi(inode);
1912 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1914 if (!lli->lli_has_smd &&
1915 !(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
1916 cl_file_inode_init(inode, md);
1918 lli->lli_maxbytes = lsm->lsm_maxbytes;
1919 if (lli->lli_maxbytes > MAX_LFS_FILESIZE)
1920 lli->lli_maxbytes = MAX_LFS_FILESIZE;
1923 if (S_ISDIR(inode->i_mode) && md->lmv != NULL)
1924 ll_update_lsm_md(inode, md);
1926 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1927 if (body->valid & OBD_MD_FLRMTPERM)
1928 ll_update_remote_perm(inode, md->remote_perm);
1930 #ifdef CONFIG_FS_POSIX_ACL
1931 else if (body->valid & OBD_MD_FLACL) {
1932 spin_lock(&lli->lli_lock);
1933 if (lli->lli_posix_acl)
1934 posix_acl_release(lli->lli_posix_acl);
1935 lli->lli_posix_acl = md->posix_acl;
1936 spin_unlock(&lli->lli_lock);
1939 inode->i_ino = cl_fid_build_ino(&body->fid1,
1940 sbi->ll_flags & LL_SBI_32BIT_API);
1941 inode->i_generation = cl_fid_build_gen(&body->fid1);
1943 if (body->valid & OBD_MD_FLATIME) {
1944 if (body->atime > LTIME_S(inode->i_atime))
1945 LTIME_S(inode->i_atime) = body->atime;
1946 lli->lli_lvb.lvb_atime = body->atime;
1948 if (body->valid & OBD_MD_FLMTIME) {
1949 if (body->mtime > LTIME_S(inode->i_mtime)) {
1950 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1951 "to "LPU64"\n", inode->i_ino,
1952 LTIME_S(inode->i_mtime), body->mtime);
1953 LTIME_S(inode->i_mtime) = body->mtime;
1955 lli->lli_lvb.lvb_mtime = body->mtime;
1957 if (body->valid & OBD_MD_FLCTIME) {
1958 if (body->ctime > LTIME_S(inode->i_ctime))
1959 LTIME_S(inode->i_ctime) = body->ctime;
1960 lli->lli_lvb.lvb_ctime = body->ctime;
1962 if (body->valid & OBD_MD_FLMODE)
1963 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1964 if (body->valid & OBD_MD_FLTYPE)
1965 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1966 LASSERT(inode->i_mode != 0);
1967 if (S_ISREG(inode->i_mode)) {
1968 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1970 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1972 if (body->valid & OBD_MD_FLUID)
1973 inode->i_uid = body->uid;
1974 if (body->valid & OBD_MD_FLGID)
1975 inode->i_gid = body->gid;
1976 if (body->valid & OBD_MD_FLFLAGS)
1977 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1978 if (body->valid & OBD_MD_FLNLINK)
1979 set_nlink(inode, body->nlink);
1980 if (body->valid & OBD_MD_FLRDEV)
1981 inode->i_rdev = old_decode_dev(body->rdev);
1983 if (body->valid & OBD_MD_FLID) {
1984 /* FID shouldn't be changed! */
1985 if (fid_is_sane(&lli->lli_fid)) {
1986 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1987 "Trying to change FID "DFID
1988 " to the "DFID", inode "DFID"(%p)\n",
1989 PFID(&lli->lli_fid), PFID(&body->fid1),
1990 PFID(ll_inode2fid(inode)), inode);
1992 lli->lli_fid = body->fid1;
1996 LASSERT(fid_seq(&lli->lli_fid) != 0);
1998 if (body->valid & OBD_MD_FLSIZE) {
1999 if (exp_connect_som(ll_i2mdexp(inode)) &&
2000 S_ISREG(inode->i_mode)) {
2001 struct lustre_handle lockh;
2004 /* As it is possible a blocking ast has been processed
2005 * by this time, we need to check there is an UPDATE
2006 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
2008 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
2009 &lockh, LDLM_FL_CBPENDING,
2013 if (lli->lli_flags & (LLIF_DONE_WRITING |
2014 LLIF_EPOCH_PENDING |
2016 CERROR("%s: inode "DFID" flags %u still"
2017 " has size authority! do not "
2018 "trust the size from MDS\n",
2019 sbi->ll_md_exp->exp_obd->obd_name,
2020 PFID(ll_inode2fid(inode)),
2023 /* Use old size assignment to avoid
2024 * deadlock bz14138 & bz14326 */
2025 i_size_write(inode, body->size);
2026 spin_lock(&lli->lli_lock);
2027 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
2028 spin_unlock(&lli->lli_lock);
2030 ldlm_lock_decref(&lockh, mode);
2033 /* Use old size assignment to avoid
2034 * deadlock bz14138 & bz14326 */
2035 i_size_write(inode, body->size);
2038 "inode="DFID", updating i_size %llu\n",
2039 PFID(ll_inode2fid(inode)),
2040 (unsigned long long)body->size);
2043 if (body->valid & OBD_MD_FLBLOCKS)
2044 inode->i_blocks = body->blocks;
2047 if (body->valid & OBD_MD_FLMDSCAPA) {
2048 LASSERT(md->mds_capa);
2049 ll_add_capa(inode, md->mds_capa);
2051 if (body->valid & OBD_MD_FLOSSCAPA) {
2052 LASSERT(md->oss_capa);
2053 ll_add_capa(inode, md->oss_capa);
2056 if (body->valid & OBD_MD_TSTATE) {
2057 if (body->t_state & MS_RESTORE)
2058 lli->lli_flags |= LLIF_FILE_RESTORING;
2062 void ll_read_inode2(struct inode *inode, void *opaque)
2064 struct lustre_md *md = opaque;
2065 struct ll_inode_info *lli = ll_i2info(inode);
2068 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
2069 PFID(&lli->lli_fid), inode);
2071 LASSERT(!lli->lli_has_smd);
2073 /* Core attributes from the MDS first. This is a new inode, and
2074 * the VFS doesn't zero times in the core inode so we have to do
2075 * it ourselves. They will be overwritten by either MDS or OST
2076 * attributes - we just need to make sure they aren't newer. */
2077 LTIME_S(inode->i_mtime) = 0;
2078 LTIME_S(inode->i_atime) = 0;
2079 LTIME_S(inode->i_ctime) = 0;
2081 ll_update_inode(inode, md);
2083 /* OIDEBUG(inode); */
2085 /* initializing backing dev info. */
2086 inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
2089 if (S_ISREG(inode->i_mode)) {
2090 struct ll_sb_info *sbi = ll_i2sbi(inode);
2091 inode->i_op = &ll_file_inode_operations;
2092 inode->i_fop = sbi->ll_fop;
2093 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
2095 } else if (S_ISDIR(inode->i_mode)) {
2096 inode->i_op = &ll_dir_inode_operations;
2097 inode->i_fop = &ll_dir_operations;
2099 } else if (S_ISLNK(inode->i_mode)) {
2100 inode->i_op = &ll_fast_symlink_inode_operations;
2103 inode->i_op = &ll_special_inode_operations;
2105 init_special_inode(inode, inode->i_mode,
2112 void ll_delete_inode(struct inode *inode)
2114 struct cl_inode_info *lli = cl_i2info(inode);
2117 if (S_ISREG(inode->i_mode) && lli->lli_clob != NULL)
2118 /* discard all dirty pages before truncating them, required by
2119 * osc_extent implementation at LU-1030. */
2120 cl_sync_file_range(inode, 0, OBD_OBJECT_EOF,
2121 CL_FSYNC_DISCARD, 1);
2123 truncate_inode_pages(&inode->i_data, 0);
2125 /* Workaround for LU-118 */
2126 if (inode->i_data.nrpages) {
2127 spin_lock_irq(&inode->i_data.tree_lock);
2128 spin_unlock_irq(&inode->i_data.tree_lock);
2129 LASSERTF(inode->i_data.nrpages == 0,
2130 "inode="DFID"(%p) nrpages=%lu, see "
2131 "http://jira.whamcloud.com/browse/LU-118\n",
2132 PFID(ll_inode2fid(inode)), inode,
2133 inode->i_data.nrpages);
2135 /* Workaround end */
2137 #ifdef HAVE_SBOPS_EVICT_INODE
2138 ll_clear_inode(inode);
2145 int ll_iocontrol(struct inode *inode, struct file *file,
2146 unsigned int cmd, unsigned long arg)
2148 struct ll_sb_info *sbi = ll_i2sbi(inode);
2149 struct ptlrpc_request *req = NULL;
2154 case FSFILT_IOC_GETFLAGS: {
2155 struct mdt_body *body;
2156 struct md_op_data *op_data;
2158 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
2159 0, 0, LUSTRE_OPC_ANY,
2161 if (IS_ERR(op_data))
2162 RETURN(PTR_ERR(op_data));
2164 op_data->op_valid = OBD_MD_FLFLAGS;
2165 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
2166 ll_finish_md_op_data(op_data);
2168 CERROR("%s: failure inode "DFID": rc = %d\n",
2169 sbi->ll_md_exp->exp_obd->obd_name,
2170 PFID(ll_inode2fid(inode)), rc);
2174 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
2176 flags = body->flags;
2178 ptlrpc_req_finished(req);
2180 RETURN(put_user(flags, (int *)arg));
2182 case FSFILT_IOC_SETFLAGS: {
2183 struct lov_stripe_md *lsm;
2184 struct obd_info oinfo = { { { 0 } } };
2185 struct md_op_data *op_data;
2187 if (get_user(flags, (int *)arg))
2190 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
2191 LUSTRE_OPC_ANY, NULL);
2192 if (IS_ERR(op_data))
2193 RETURN(PTR_ERR(op_data));
2195 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
2196 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
2197 rc = md_setattr(sbi->ll_md_exp, op_data,
2198 NULL, 0, NULL, 0, &req, NULL);
2199 ll_finish_md_op_data(op_data);
2200 ptlrpc_req_finished(req);
2204 inode->i_flags = ll_ext_to_inode_flags(flags);
2206 lsm = ccc_inode_lsm_get(inode);
2207 if (!lsm_has_objects(lsm)) {
2208 ccc_inode_lsm_put(inode, lsm);
2212 OBDO_ALLOC(oinfo.oi_oa);
2214 ccc_inode_lsm_put(inode, lsm);
2218 oinfo.oi_oa->o_oi = lsm->lsm_oi;
2219 oinfo.oi_oa->o_flags = flags;
2220 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
2222 oinfo.oi_capa = ll_mdscapa_get(inode);
2223 obdo_set_parent_fid(oinfo.oi_oa, &ll_i2info(inode)->lli_fid);
2224 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
2225 capa_put(oinfo.oi_capa);
2226 OBDO_FREE(oinfo.oi_oa);
2227 ccc_inode_lsm_put(inode, lsm);
2229 if (rc && rc != -EPERM && rc != -EACCES)
2230 CERROR("osc_setattr_async fails: rc = %d\n", rc);
2241 int ll_flush_ctx(struct inode *inode)
2243 struct ll_sb_info *sbi = ll_i2sbi(inode);
2245 CDEBUG(D_SEC, "flush context for user %d\n", current_uid());
2247 obd_set_info_async(NULL, sbi->ll_md_exp,
2248 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
2250 obd_set_info_async(NULL, sbi->ll_dt_exp,
2251 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
2256 /* umount -f client means force down, don't save state */
2257 void ll_umount_begin(struct super_block *sb)
2259 struct ll_sb_info *sbi = ll_s2sbi(sb);
2260 struct obd_device *obd;
2261 struct obd_ioctl_data *ioc_data;
2264 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
2265 sb->s_count, atomic_read(&sb->s_active));
2267 obd = class_exp2obd(sbi->ll_md_exp);
2269 CERROR("Invalid MDC connection handle "LPX64"\n",
2270 sbi->ll_md_exp->exp_handle.h_cookie);
2276 obd = class_exp2obd(sbi->ll_dt_exp);
2278 CERROR("Invalid LOV connection handle "LPX64"\n",
2279 sbi->ll_dt_exp->exp_handle.h_cookie);
2285 OBD_ALLOC_PTR(ioc_data);
2287 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
2288 sizeof *ioc_data, ioc_data, NULL);
2290 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
2291 sizeof *ioc_data, ioc_data, NULL);
2293 OBD_FREE_PTR(ioc_data);
2296 /* Really, we'd like to wait until there are no requests outstanding,
2297 * and then continue. For now, we just invalidate the requests,
2298 * schedule() and sleep one second if needed, and hope.
2304 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
2306 struct ll_sb_info *sbi = ll_s2sbi(sb);
2307 char *profilenm = get_profile_name(sb);
2311 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
2312 read_only = *flags & MS_RDONLY;
2313 err = obd_set_info_async(NULL, sbi->ll_md_exp,
2314 sizeof(KEY_READ_ONLY),
2315 KEY_READ_ONLY, sizeof(read_only),
2318 LCONSOLE_WARN("Failed to remount %s %s (%d)\n",
2319 profilenm, read_only ?
2320 "read-only" : "read-write", err);
2325 sb->s_flags |= MS_RDONLY;
2327 sb->s_flags &= ~MS_RDONLY;
2329 if (sbi->ll_flags & LL_SBI_VERBOSE)
2330 LCONSOLE_WARN("Remounted %s %s\n", profilenm,
2331 read_only ? "read-only" : "read-write");
2336 int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
2337 struct super_block *sb, struct lookup_intent *it)
2339 struct ll_sb_info *sbi = NULL;
2340 struct lustre_md md = { 0 };
2344 LASSERT(*inode || sb);
2345 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
2346 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
2347 sbi->ll_md_exp, &md);
2352 ll_update_inode(*inode, &md);
2354 LASSERT(sb != NULL);
2357 * At this point server returns to client's same fid as client
2358 * generated for creating. So using ->fid1 is okay here.
2360 LASSERT(fid_is_sane(&md.body->fid1));
2362 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1,
2363 sbi->ll_flags & LL_SBI_32BIT_API),
2365 if (*inode == NULL || IS_ERR(*inode)) {
2366 #ifdef CONFIG_FS_POSIX_ACL
2368 posix_acl_release(md.posix_acl);
2369 md.posix_acl = NULL;
2372 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
2374 CERROR("new_inode -fatal: rc %d\n", rc);
2379 /* Handling piggyback layout lock.
2380 * Layout lock can be piggybacked by getattr and open request.
2381 * The lsm can be applied to inode only if it comes with a layout lock
2382 * otherwise correct layout may be overwritten, for example:
2383 * 1. proc1: mdt returns a lsm but not granting layout
2384 * 2. layout was changed by another client
2385 * 3. proc2: refresh layout and layout lock granted
2386 * 4. proc1: to apply a stale layout */
2387 if (it != NULL && it->d.lustre.it_lock_mode != 0) {
2388 struct lustre_handle lockh;
2389 struct ldlm_lock *lock;
2391 lockh.cookie = it->d.lustre.it_lock_handle;
2392 lock = ldlm_handle2lock(&lockh);
2393 LASSERT(lock != NULL);
2394 if (ldlm_has_layout(lock)) {
2395 struct cl_object_conf conf;
2397 memset(&conf, 0, sizeof(conf));
2398 conf.coc_opc = OBJECT_CONF_SET;
2399 conf.coc_inode = *inode;
2400 conf.coc_lock = lock;
2401 conf.u.coc_md = &md;
2402 (void)ll_layout_conf(*inode, &conf);
2404 LDLM_LOCK_PUT(lock);
2409 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2410 md_free_lustre_md(sbi->ll_md_exp, &md);
2414 int ll_obd_statfs(struct inode *inode, void *arg)
2416 struct ll_sb_info *sbi = NULL;
2417 struct obd_export *exp;
2419 struct obd_ioctl_data *data = NULL;
2424 if (!inode || !(sbi = ll_i2sbi(inode)))
2425 GOTO(out_statfs, rc = -EINVAL);
2427 rc = obd_ioctl_getdata(&buf, &len, arg);
2429 GOTO(out_statfs, rc);
2432 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2433 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2434 GOTO(out_statfs, rc = -EINVAL);
2436 if (data->ioc_inllen1 != sizeof(__u32) ||
2437 data->ioc_inllen2 != sizeof(__u32) ||
2438 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2439 data->ioc_plen2 != sizeof(struct obd_uuid))
2440 GOTO(out_statfs, rc = -EINVAL);
2442 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2443 if (type & LL_STATFS_LMV)
2444 exp = sbi->ll_md_exp;
2445 else if (type & LL_STATFS_LOV)
2446 exp = sbi->ll_dt_exp;
2448 GOTO(out_statfs, rc = -ENODEV);
2450 flags = (type & LL_STATFS_NODELAY) ? OBD_STATFS_NODELAY : 0;
2451 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, &flags);
2453 GOTO(out_statfs, rc);
2456 obd_ioctl_freedata(buf, len);
2460 int ll_process_config(struct lustre_cfg *lcfg)
2462 struct super_block *sb;
2467 /* The instance name contains the sb: lustre-client-aacfe000 */
2468 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2469 if (!ptr || !*(++ptr))
2471 if (sscanf(ptr, "%lx", &x) != 1)
2473 sb = (struct super_block *)x;
2474 /* This better be a real Lustre superblock! */
2475 LASSERT(s2lsi(sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2477 /* Note we have not called client_common_fill_super yet, so
2478 proc fns must be able to handle that! */
2479 rc = class_process_proc_seq_param(PARAM_LLITE, lprocfs_llite_obd_vars,
2486 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2487 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2488 struct inode *i1, struct inode *i2,
2489 const char *name, int namelen,
2490 int mode, __u32 opc, void *data)
2492 LASSERT(i1 != NULL);
2494 if (namelen > ll_i2sbi(i1)->ll_namelen)
2495 return ERR_PTR(-ENAMETOOLONG);
2497 if (op_data == NULL)
2498 OBD_ALLOC_PTR(op_data);
2500 if (op_data == NULL)
2501 return ERR_PTR(-ENOMEM);
2503 ll_i2gids(op_data->op_suppgids, i1, i2);
2504 op_data->op_fid1 = *ll_inode2fid(i1);
2505 op_data->op_capa1 = ll_mdscapa_get(i1);
2506 if (S_ISDIR(i1->i_mode))
2507 op_data->op_mea1 = ll_i2info(i1)->lli_lsm_md;
2510 op_data->op_fid2 = *ll_inode2fid(i2);
2511 op_data->op_capa2 = ll_mdscapa_get(i2);
2512 if (S_ISDIR(i2->i_mode))
2513 op_data->op_mea2 = ll_i2info(i2)->lli_lsm_md;
2515 fid_zero(&op_data->op_fid2);
2516 op_data->op_capa2 = NULL;
2519 if (ll_i2sbi(i1)->ll_flags & LL_SBI_64BIT_HASH)
2520 op_data->op_cli_flags |= CLI_HASH64;
2522 if (ll_need_32bit_api(ll_i2sbi(i1)))
2523 op_data->op_cli_flags |= CLI_API32;
2525 op_data->op_name = name;
2526 op_data->op_namelen = namelen;
2527 op_data->op_mode = mode;
2528 op_data->op_mod_time = cfs_time_current_sec();
2529 op_data->op_fsuid = current_fsuid();
2530 op_data->op_fsgid = current_fsgid();
2531 op_data->op_cap = cfs_curproc_cap_pack();
2532 op_data->op_bias = 0;
2533 op_data->op_cli_flags = 0;
2534 if ((opc == LUSTRE_OPC_CREATE) && (name != NULL) &&
2535 filename_is_volatile(name, namelen, NULL))
2536 op_data->op_bias |= MDS_CREATE_VOLATILE;
2537 op_data->op_opc = opc;
2538 op_data->op_mds = 0;
2539 op_data->op_data = data;
2541 /* If the file is being opened after mknod() (normally due to NFS)
2542 * try to use the default stripe data from parent directory for
2543 * allocating OST objects. Try to pass the parent FID to MDS. */
2544 if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
2545 !ll_i2info(i2)->lli_has_smd) {
2546 struct ll_inode_info *lli = ll_i2info(i2);
2548 spin_lock(&lli->lli_lock);
2549 if (likely(!lli->lli_has_smd && !fid_is_zero(&lli->lli_pfid)))
2550 op_data->op_fid1 = lli->lli_pfid;
2551 spin_unlock(&lli->lli_lock);
2552 /** We ignore parent's capability temporary. */
2555 /* When called by ll_setattr_raw, file is i1. */
2556 if (LLIF_DATA_MODIFIED & ll_i2info(i1)->lli_flags)
2557 op_data->op_bias |= MDS_DATA_MODIFIED;
2562 void ll_finish_md_op_data(struct md_op_data *op_data)
2564 capa_put(op_data->op_capa1);
2565 capa_put(op_data->op_capa2);
2566 OBD_FREE_PTR(op_data);
2569 #ifdef HAVE_SUPEROPS_USE_DENTRY
2570 int ll_show_options(struct seq_file *seq, struct dentry *dentry)
2572 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2575 struct ll_sb_info *sbi;
2577 #ifdef HAVE_SUPEROPS_USE_DENTRY
2578 LASSERT((seq != NULL) && (dentry != NULL));
2579 sbi = ll_s2sbi(dentry->d_sb);
2581 LASSERT((seq != NULL) && (vfs != NULL));
2582 sbi = ll_s2sbi(vfs->mnt_sb);
2585 if (sbi->ll_flags & LL_SBI_NOLCK)
2586 seq_puts(seq, ",nolock");
2588 if (sbi->ll_flags & LL_SBI_FLOCK)
2589 seq_puts(seq, ",flock");
2591 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2592 seq_puts(seq, ",localflock");
2594 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2595 seq_puts(seq, ",user_xattr");
2597 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2598 seq_puts(seq, ",lazystatfs");
2600 if (sbi->ll_flags & LL_SBI_USER_FID2PATH)
2601 seq_puts(seq, ",user_fid2path");
2607 * Get obd name by cmd, and copy out to user space
2609 int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg)
2611 struct ll_sb_info *sbi = ll_i2sbi(inode);
2612 struct obd_device *obd;
2615 if (cmd == OBD_IOC_GETDTNAME)
2616 obd = class_exp2obd(sbi->ll_dt_exp);
2617 else if (cmd == OBD_IOC_GETMDNAME)
2618 obd = class_exp2obd(sbi->ll_md_exp);
2625 if (copy_to_user((void *)arg, obd->obd_name,
2626 strlen(obd->obd_name) + 1))
2633 * Get lustre file system name by \a sbi. If \a buf is provided(non-NULL), the
2634 * fsname will be returned in this buffer; otherwise, a static buffer will be
2635 * used to store the fsname and returned to caller.
2637 char *ll_get_fsname(struct super_block *sb, char *buf, int buflen)
2639 static char fsname_static[MTI_NAME_MAXLEN];
2640 struct lustre_sb_info *lsi = s2lsi(sb);
2645 /* this means the caller wants to use static buffer
2646 * and it doesn't care about race. Usually this is
2647 * in error reporting path */
2648 buf = fsname_static;
2649 buflen = sizeof(fsname_static);
2652 len = strlen(lsi->lsi_lmd->lmd_profile);
2653 ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
2654 if (ptr && (strcmp(ptr, "-client") == 0))
2657 if (unlikely(len >= buflen))
2659 strncpy(buf, lsi->lsi_lmd->lmd_profile, len);
2665 static char* ll_d_path(struct dentry *dentry, char *buf, int bufsize)
2672 p.mnt = current->fs->root.mnt;
2674 path = d_path(&p, buf, bufsize);
2679 void ll_dirty_page_discard_warn(struct page *page, int ioret)
2681 char *buf, *path = NULL;
2682 struct dentry *dentry = NULL;
2683 struct ccc_object *obj = cl_inode2ccc(page->mapping->host);
2685 /* this can be called inside spin lock so use GFP_ATOMIC. */
2686 buf = (char *)__get_free_page(GFP_ATOMIC);
2688 dentry = d_find_alias(page->mapping->host);
2690 path = ll_d_path(dentry, buf, PAGE_SIZE);
2693 CWARN("%s: dirty page discard: %s/fid: "DFID"/%s may get corrupted "
2694 "(rc %d)\n", ll_get_fsname(page->mapping->host->i_sb, NULL, 0),
2695 s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev,
2696 PFID(&obj->cob_header.coh_lu.loh_fid),
2697 (path && !IS_ERR(path)) ? path : "", ioret);
2703 free_page((unsigned long)buf);