1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Lustre Light Super operations
6 * Copyright (c) 2002-2005 Cluster File Systems, Inc.
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #define DEBUG_SUBSYSTEM S_LLITE
26 #include <linux/module.h>
27 #include <linux/types.h>
28 #include <linux/random.h>
29 #include <linux/version.h>
31 #include <lustre_lite.h>
32 #include <lustre_ha.h>
33 #include <lustre_dlm.h>
34 #include <lprocfs_status.h>
35 #include <lustre_disk.h>
36 #include <lustre_param.h>
37 #include <lustre_log.h>
38 #include "llite_internal.h"
40 cfs_mem_cache_t *ll_file_data_slab;
42 LIST_HEAD(ll_super_blocks);
43 spinlock_t ll_sb_lock = SPIN_LOCK_UNLOCKED;
45 extern struct address_space_operations ll_aops;
46 extern struct address_space_operations ll_dir_aops;
49 #define log2(n) ffz(~(n))
53 static struct ll_sb_info *ll_init_sbi(void)
55 struct ll_sb_info *sbi = NULL;
60 OBD_ALLOC(sbi, sizeof(*sbi));
64 spin_lock_init(&sbi->ll_lock);
65 spin_lock_init(&sbi->ll_lco.lco_lock);
66 spin_lock_init(&sbi->ll_pp_extent_lock);
67 spin_lock_init(&sbi->ll_process_lock);
68 sbi->ll_rw_stats_on = 0;
69 INIT_LIST_HEAD(&sbi->ll_pglist);
70 if (num_physpages >> (20 - CFS_PAGE_SHIFT) < 512)
71 sbi->ll_async_page_max = num_physpages / 2;
73 sbi->ll_async_page_max = (num_physpages / 4) * 3;
74 sbi->ll_ra_info.ra_max_pages = min(num_physpages / 8,
75 SBI_DEFAULT_READAHEAD_MAX);
76 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
77 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
79 INIT_LIST_HEAD(&sbi->ll_conn_chain);
80 INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
82 ll_generate_random_uuid(uuid);
83 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
84 CDEBUG(D_HA, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
86 spin_lock(&ll_sb_lock);
87 list_add_tail(&sbi->ll_list, &ll_super_blocks);
88 spin_unlock(&ll_sb_lock);
90 #ifdef ENABLE_LLITE_CHECKSUM
91 sbi->ll_flags |= LL_SBI_CHECKSUM;
94 #ifdef HAVE_LRU_RESIZE_SUPPORT
95 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
98 #ifdef HAVE_EXPORT___IGET
99 INIT_LIST_HEAD(&sbi->ll_deathrow);
100 spin_lock_init(&sbi->ll_deathrow_lock);
102 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
103 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].pp_r_hist.oh_lock);
104 spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].pp_w_hist.oh_lock);
110 void ll_free_sbi(struct super_block *sb)
112 struct ll_sb_info *sbi = ll_s2sbi(sb);
116 spin_lock(&ll_sb_lock);
117 list_del(&sbi->ll_list);
118 spin_unlock(&ll_sb_lock);
119 OBD_FREE(sbi, sizeof(*sbi));
124 static struct dentry_operations ll_d_root_ops = {
125 #ifdef LUSTRE_KERNEL_VERSION
126 .d_compare = ll_dcompare,
130 /* Initialize the default and maximum LOV EA and cookie sizes. This allows
131 * us to make MDS RPCs with large enough reply buffers to hold the
132 * maximum-sized (= maximum striped) EA and cookie without having to
133 * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
134 static int ll_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp)
136 struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC };
137 __u32 valsize = sizeof(struct lov_desc);
138 int rc, easize, def_easize, cookiesize;
139 struct lov_desc desc;
143 rc = obd_get_info(dt_exp, strlen(KEY_LOVDESC) + 1, KEY_LOVDESC,
148 stripes = min(desc.ld_tgt_count, (__u32)LOV_MAX_STRIPE_COUNT);
149 lsm.lsm_stripe_count = stripes;
150 easize = obd_size_diskmd(dt_exp, &lsm);
152 lsm.lsm_stripe_count = desc.ld_default_stripe_count;
153 def_easize = obd_size_diskmd(dt_exp, &lsm);
155 cookiesize = stripes * sizeof(struct llog_cookie);
157 CDEBUG(D_HA, "updating max_mdsize/max_cookiesize: %d/%d\n",
160 rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize);
164 static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
165 uid_t nllu, gid_t nllg)
167 struct inode *root = 0;
168 struct ll_sb_info *sbi = ll_s2sbi(sb);
169 struct obd_device *obd;
170 struct lu_fid rootfid;
171 struct obd_capa *oc = NULL;
172 struct obd_statfs osfs;
173 struct ptlrpc_request *request = NULL;
174 struct lustre_handle dt_conn = {0, };
175 struct lustre_handle md_conn = {0, };
176 struct obd_connect_data *data = NULL;
177 struct lustre_md lmd;
179 int size, err, checksum;
182 obd = class_name2obd(md);
184 CERROR("MD %s: not setup or attached\n", md);
192 if (proc_lustre_fs_root) {
193 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
196 CERROR("could not register mount in /proc/lustre");
199 /* indicate the features supported by this client */
200 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
202 OBD_CONNECT_ATTRFID | OBD_CONNECT_VERSION |
203 OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
204 OBD_CONNECT_CANCELSET;
205 #ifdef HAVE_LRU_RESIZE_SUPPORT
206 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
207 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
209 #ifdef CONFIG_FS_POSIX_ACL
210 data->ocd_connect_flags |= OBD_CONNECT_ACL;
212 data->ocd_ibits_known = MDS_INODELOCK_FULL;
213 data->ocd_version = LUSTRE_VERSION_CODE;
215 if (sb->s_flags & MS_RDONLY)
216 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
217 if (sbi->ll_flags & LL_SBI_USER_XATTR)
218 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
220 #ifdef HAVE_MS_FLOCK_LOCK
221 /* force vfs to use lustre handler for flock() calls - bug 10743 */
222 sb->s_flags |= MS_FLOCK_LOCK;
225 if (sbi->ll_flags & LL_SBI_FLOCK)
226 sbi->ll_fop = &ll_file_operations_flock;
227 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
228 sbi->ll_fop = &ll_file_operations;
230 sbi->ll_fop = &ll_file_operations_noflock;
233 data->ocd_connect_flags |= OBD_CONNECT_REAL;
234 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
235 data->ocd_connect_flags &= ~OBD_CONNECT_LCL_CLIENT;
236 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT;
238 data->ocd_connect_flags &= ~OBD_CONNECT_RMT_CLIENT;
239 data->ocd_connect_flags |= OBD_CONNECT_LCL_CLIENT;
241 data->ocd_nllu = nllu;
242 data->ocd_nllg = nllg;
244 err = obd_connect(NULL, &md_conn, obd, &sbi->ll_sb_uuid, data);
246 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
247 "recovery, of which this client is not a "
248 "part. Please wait for recovery to complete,"
249 " abort, or time out.\n", md);
252 CERROR("cannot connect to %s: rc = %d\n", md, err);
255 sbi->ll_md_exp = class_conn2export(&md_conn);
257 err = obd_fid_init(sbi->ll_md_exp);
259 CERROR("Can't init metadata layer FID infrastructure, "
264 err = obd_statfs(obd, &osfs, cfs_time_current_64() - HZ);
266 GOTO(out_md_fid, err);
268 size = sizeof(*data);
269 err = obd_get_info(sbi->ll_md_exp, strlen(KEY_CONN_DATA),
270 KEY_CONN_DATA, &size, data);
272 CERROR("Get connect data failed: %d \n", err);
276 LASSERT(osfs.os_bsize);
277 sb->s_blocksize = osfs.os_bsize;
278 sb->s_blocksize_bits = log2(osfs.os_bsize);
279 sb->s_magic = LL_SUPER_MAGIC;
281 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
282 * retval = in_file->f_op->sendfile(...);
284 * retval = -EOVERFLOW;
286 * it will check if *ppos is greater than max. However, max equals to
287 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
288 * has been defined as a signed long long ineger in linux kernel. */
289 #if BITS_PER_LONG == 64
290 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
292 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
294 sbi->ll_namelen = osfs.os_namelen;
295 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
297 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
298 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
299 LCONSOLE_INFO("Disabling user_xattr feature because "
300 "it is not supported on the server\n");
301 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
304 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
306 sb->s_flags |= MS_POSIXACL;
308 sbi->ll_flags |= LL_SBI_ACL;
310 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
312 sb->s_flags &= ~MS_POSIXACL;
314 sbi->ll_flags &= ~LL_SBI_ACL;
317 if (data->ocd_connect_flags & OBD_CONNECT_JOIN)
318 sbi->ll_flags |= LL_SBI_JOIN;
320 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
321 if (!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT)) {
322 /* sometimes local client claims to be remote, but mdt
323 * will disagree when client gss not applied. */
324 LCONSOLE_INFO("client claims to be remote, but server "
325 "rejected, forced to be local.\n");
326 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
329 if (!(data->ocd_connect_flags & OBD_CONNECT_LCL_CLIENT)) {
330 /* with gss applied, remote client can not claim to be
331 * local, so mdt maybe force client to be remote. */
332 LCONSOLE_INFO("client claims to be local, but server "
333 "rejected, forced to be remote.\n");
334 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
338 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
339 LCONSOLE_INFO("client enabled MDS capability!\n");
340 sbi->ll_flags |= LL_SBI_MDS_CAPA;
343 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
344 LCONSOLE_INFO("client enabled OSS capability!\n");
345 sbi->ll_flags |= LL_SBI_OSS_CAPA;
348 sbi->ll_sdev_orig = sb->s_dev;
349 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
350 /* We set sb->s_dev equal on all lustre clients in order to support
351 * NFS export clustering. NFSD requires that the FSID be the same
353 /* s_dev is also used in lt_compare() to compare two fs, but that is
354 * only a node-local comparison. */
356 /* XXX: this will not work with LMV */
357 sb->s_dev = get_uuid2int(sbi2mdc(sbi)->cl_target_uuid.uuid,
358 strlen(sbi2mdc(sbi)->cl_target_uuid.uuid));
361 obd = class_name2obd(dt);
363 CERROR("DT %s: not setup or attached\n", dt);
364 GOTO(out_md_fid, err = -ENODEV);
367 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
368 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
369 OBD_CONNECT_CANCELSET;
370 if (sbi->ll_flags & LL_SBI_OSS_CAPA)
371 data->ocd_connect_flags |= OBD_CONNECT_OSS_CAPA;
373 #ifdef HAVE_LRU_RESIZE_SUPPORT
374 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
376 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
377 "ocd_grant: %d\n", data->ocd_connect_flags,
378 data->ocd_version, data->ocd_grant);
380 obd->obd_upcall.onu_owner = &sbi->ll_lco;
381 obd->obd_upcall.onu_upcall = ll_ocd_update;
382 data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
384 err = obd_connect(NULL, &dt_conn, obd, &sbi->ll_sb_uuid, data);
386 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
387 "recovery, of which this client is not a "
388 "part. Please wait for recovery to "
389 "complete, abort, or time out.\n", dt);
390 GOTO(out_md_fid, err);
392 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
393 GOTO(out_md_fid, err);
396 sbi->ll_dt_exp = class_conn2export(&dt_conn);
398 err = obd_fid_init(sbi->ll_dt_exp);
400 CERROR("Can't init data layer FID infrastructure, "
405 spin_lock(&sbi->ll_lco.lco_lock);
406 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
407 spin_unlock(&sbi->ll_lco.lco_lock);
409 ll_init_ea_size(sbi->ll_md_exp, sbi->ll_dt_exp);
411 err = obd_prep_async_page(sbi->ll_dt_exp, NULL, NULL, NULL,
412 0, NULL, NULL, NULL);
414 LCONSOLE_ERROR_MSG(0x151, "There are no OST's in this "
415 "filesystem. There must be at least one "
416 "active OST for a client to start.\n");
417 GOTO(out_dt_fid, err);
420 if (!ll_async_page_slab) {
421 ll_async_page_slab_size =
422 size_round(sizeof(struct ll_async_page)) + err;
423 ll_async_page_slab = cfs_mem_cache_create("ll_async_page",
424 ll_async_page_slab_size,
426 if (!ll_async_page_slab)
427 GOTO(out_dt_fid, err = -ENOMEM);
430 err = md_getstatus(sbi->ll_md_exp, &rootfid, &oc);
432 CERROR("cannot mds_connect: rc = %d\n", err);
433 GOTO(out_dt_fid, err);
435 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&rootfid));
436 sbi->ll_root_fid = rootfid;
438 sb->s_op = &lustre_super_operations;
439 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
440 sb->s_export_op = &lustre_export_operations;
444 * XXX: move this to after cbd setup? */
445 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
446 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
447 valid |= OBD_MD_FLRMTPERM;
448 else if (sbi->ll_flags & LL_SBI_ACL)
449 valid |= OBD_MD_FLACL;
451 err = md_getattr(sbi->ll_md_exp, &rootfid, oc, valid, 0, &request);
455 CERROR("md_getattr failed for root: rc = %d\n", err);
456 GOTO(out_dt_fid, err);
458 memset(&lmd, 0, sizeof(lmd));
459 err = md_get_lustre_md(sbi->ll_md_exp, request,
460 REPLY_REC_OFF, sbi->ll_dt_exp, sbi->ll_md_exp,
463 CERROR("failed to understand root inode md: rc = %d\n", err);
464 ptlrpc_req_finished (request);
465 GOTO(out_dt_fid, err);
468 LASSERT(fid_is_sane(&sbi->ll_root_fid));
469 root = ll_iget(sb, ll_fid_build_ino(sbi, &sbi->ll_root_fid), &lmd);
470 md_free_lustre_md(sbi->ll_md_exp, &lmd);
471 ptlrpc_req_finished(request);
473 if (root == NULL || is_bad_inode(root)) {
475 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
476 #ifdef CONFIG_FS_POSIX_ACL
478 posix_acl_release(lmd.posix_acl);
479 lmd.posix_acl = NULL;
482 CERROR("lustre_lite: bad iget4 for root\n");
483 GOTO(out_root, err = -EBADF);
486 err = ll_close_thread_start(&sbi->ll_lcq);
488 CERROR("cannot start close thread: rc %d\n", err);
492 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
493 err = obd_set_info_async(sbi->ll_dt_exp, strlen("checksum"),"checksum",
494 sizeof(checksum), &checksum, NULL);
496 /* making vm readahead 0 for 2.4.x. In the case of 2.6.x,
497 backing dev info assigned to inode mapping is used for
498 determining maximal readahead. */
499 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)) && \
500 !defined(KERNEL_HAS_AS_MAX_READAHEAD)
501 /* bug 2805 - set VM readahead to zero */
502 vm_max_readahead = vm_min_readahead = 0;
505 sb->s_root = d_alloc_root(root);
507 OBD_FREE(data, sizeof(*data));
508 sb->s_root->d_op = &ll_d_root_ops;
514 obd_fid_fini(sbi->ll_dt_exp);
516 obd_disconnect(sbi->ll_dt_exp);
517 sbi->ll_dt_exp = NULL;
519 obd_fid_fini(sbi->ll_md_exp);
521 obd_disconnect(sbi->ll_md_exp);
522 sbi->ll_md_exp = NULL;
526 lprocfs_unregister_mountpoint(sbi);
530 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
534 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
536 rc = obd_get_info(sbi->ll_md_exp, strlen("max_easize"), "max_easize",
539 CERROR("Get max mdsize error rc %d \n", rc);
544 void ll_dump_inode(struct inode *inode)
546 struct list_head *tmp;
547 int dentry_count = 0;
549 LASSERT(inode != NULL);
551 list_for_each(tmp, &inode->i_dentry)
554 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
555 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
556 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
559 void lustre_dump_dentry(struct dentry *dentry, int recur)
561 struct list_head *tmp;
564 LASSERT(dentry != NULL);
566 list_for_each(tmp, &dentry->d_subdirs)
569 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
570 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
571 dentry->d_name.len, dentry->d_name.name,
572 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
573 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
574 dentry->d_flags, dentry->d_fsdata, subdirs);
575 if (dentry->d_inode != NULL)
576 ll_dump_inode(dentry->d_inode);
581 list_for_each(tmp, &dentry->d_subdirs) {
582 struct dentry *d = list_entry(tmp, struct dentry, d_child);
583 lustre_dump_dentry(d, recur - 1);
587 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
588 void lustre_throw_orphan_dentries(struct super_block *sb)
590 struct dentry *dentry, *next;
591 struct ll_sb_info *sbi = ll_s2sbi(sb);
593 /* Do this to get rid of orphaned dentries. That is not really trw. */
594 list_for_each_entry_safe(dentry, next, &sbi->ll_orphan_dentry_list,
596 CWARN("found orphan dentry %.*s (%p->%p) at unmount, dumping "
597 "before and after shrink_dcache_parent\n",
598 dentry->d_name.len, dentry->d_name.name, dentry, next);
599 lustre_dump_dentry(dentry, 1);
600 shrink_dcache_parent(dentry);
601 lustre_dump_dentry(dentry, 1);
605 #define lustre_throw_orphan_dentries(sb)
608 #ifdef HAVE_EXPORT___IGET
609 static void prune_dir_dentries(struct inode *inode)
611 struct dentry *dentry, *prev = NULL;
613 /* due to lustre specific logic, a directory
614 * can have few dentries - a bug from VFS POV */
616 spin_lock(&dcache_lock);
617 if (!list_empty(&inode->i_dentry)) {
618 dentry = list_entry(inode->i_dentry.prev,
619 struct dentry, d_alias);
620 /* in order to prevent infinite loops we
621 * break if previous dentry is busy */
622 if (dentry != prev) {
625 spin_unlock(&dcache_lock);
627 /* try to kill all child dentries */
629 shrink_dcache_parent(dentry);
630 unlock_dentry(dentry);
633 /* now try to get rid of current dentry */
634 d_prune_aliases(inode);
638 spin_unlock(&dcache_lock);
641 static void prune_deathrow_one(struct ll_inode_info *lli)
643 struct inode *inode = ll_info2i(lli);
645 /* first, try to drop any dentries - they hold a ref on the inode */
646 if (S_ISDIR(inode->i_mode))
647 prune_dir_dentries(inode);
649 d_prune_aliases(inode);
652 /* if somebody still uses it, leave it */
653 LASSERT(atomic_read(&inode->i_count) > 0);
654 if (atomic_read(&inode->i_count) > 1)
657 CDEBUG(D_INODE, "inode %lu/%u(%d) looks a good candidate for prune\n",
658 inode->i_ino,inode->i_generation, atomic_read(&inode->i_count));
660 /* seems nobody uses it anymore */
668 static void prune_deathrow(struct ll_sb_info *sbi, int try)
670 struct ll_inode_info *lli;
674 if (need_resched() && try)
678 if (!spin_trylock(&sbi->ll_deathrow_lock))
681 spin_lock(&sbi->ll_deathrow_lock);
686 if (!list_empty(&sbi->ll_deathrow)) {
687 lli = list_entry(sbi->ll_deathrow.next,
688 struct ll_inode_info,
690 list_del_init(&lli->lli_dead_list);
691 if (!list_empty(&sbi->ll_deathrow))
694 spin_unlock(&sbi->ll_deathrow_lock);
697 prune_deathrow_one(lli);
699 } while (empty == 0);
701 #else /* !HAVE_EXPORT___IGET */
702 #define prune_deathrow(sbi, try) do {} while (0)
703 #endif /* HAVE_EXPORT___IGET */
705 void client_common_put_super(struct super_block *sb)
707 struct ll_sb_info *sbi = ll_s2sbi(sb);
710 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
712 ll_close_thread_shutdown(sbi->ll_lcq);
714 /* destroy inodes in deathrow */
715 prune_deathrow(sbi, 0);
717 list_del(&sbi->ll_conn_chain);
719 obd_fid_fini(sbi->ll_dt_exp);
720 obd_disconnect(sbi->ll_dt_exp);
721 sbi->ll_dt_exp = NULL;
723 lprocfs_unregister_mountpoint(sbi);
725 obd_fid_fini(sbi->ll_md_exp);
726 obd_disconnect(sbi->ll_md_exp);
727 sbi->ll_md_exp = NULL;
729 lustre_throw_orphan_dentries(sb);
734 void ll_kill_super(struct super_block *sb)
736 struct ll_sb_info *sbi;
741 if (!(sb->s_flags & MS_ACTIVE))
745 /* we need restore s_dev from changed for clustred NFS before put_super
746 * because new kernels have cached s_dev and change sb->s_dev in
747 * put_super not affected real removing devices */
749 sb->s_dev = sbi->ll_sdev_orig;
753 char *ll_read_opt(const char *opt, char *data)
759 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
760 if (strncmp(opt, data, strlen(opt)))
762 if ((value = strchr(data, '=')) == NULL)
766 OBD_ALLOC(retval, strlen(value) + 1);
768 CERROR("out of memory!\n");
772 memcpy(retval, value, strlen(value)+1);
773 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
777 static inline int ll_set_opt(const char *opt, char *data, int fl)
779 if (strncmp(opt, data, strlen(opt)) != 0)
785 /* non-client-specific mount options are parsed in lmd_parse */
786 static int ll_options(char *options, int *flags)
789 char *s1 = options, *s2;
795 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
798 CDEBUG(D_SUPER, "next opt=%s\n", s1);
799 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
804 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
809 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
814 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
819 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
824 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
829 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
831 /* Ignore deprecated mount option. The client will
832 * always try to mount with ACL support, whether this
833 * is used depends on whether server supports it. */
836 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
840 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
846 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
851 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
856 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
861 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
867 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
873 s2 = strchr(s1, ',');
881 void ll_lli_init(struct ll_inode_info *lli)
883 lli->lli_inode_magic = LLI_INODE_MAGIC;
884 sema_init(&lli->lli_size_sem, 1);
885 sema_init(&lli->lli_write_sem, 1);
887 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
888 spin_lock_init(&lli->lli_lock);
889 INIT_LIST_HEAD(&lli->lli_pending_write_llaps);
890 INIT_LIST_HEAD(&lli->lli_close_list);
891 lli->lli_inode_magic = LLI_INODE_MAGIC;
892 sema_init(&lli->lli_och_sem, 1);
893 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
894 lli->lli_mds_exec_och = NULL;
895 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
896 lli->lli_open_fd_exec_count = 0;
897 INIT_LIST_HEAD(&lli->lli_dead_list);
898 lli->lli_remote_perms = NULL;
899 lli->lli_rmtperm_utime = 0;
900 sema_init(&lli->lli_rmtperm_sem, 1);
901 INIT_LIST_HEAD(&lli->lli_oss_capas);
904 int ll_fill_super(struct super_block *sb)
906 struct lustre_profile *lprof;
907 struct lustre_sb_info *lsi = s2lsi(sb);
908 struct ll_sb_info *sbi;
909 char *dt = NULL, *md = NULL;
910 char *profilenm = get_profile_name(sb);
911 struct config_llog_instance cfg = {0, };
912 char ll_instance[sizeof(sb) * 2 + 1];
916 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
920 sb->s_type->fs_flags |= FS_ODD_RENAME;
921 /* client additional sb info */
922 lsi->lsi_llsbi = sbi = ll_init_sbi();
928 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
932 /* Generate a string unique to this super, in case some joker tries
933 to mount the same fs at two mount points.
934 Use the address of the super itself.*/
935 sprintf(ll_instance, "%p", sb);
936 cfg.cfg_instance = ll_instance;
937 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
939 /* set up client obds */
940 err = lustre_process_log(sb, profilenm, &cfg);
942 CERROR("Unable to process log: %d\n", err);
946 lprof = class_get_profile(profilenm);
948 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
949 " read from the MGS. Does that filesystem "
950 "exist?\n", profilenm);
951 GOTO(out_free, err = -EINVAL);
953 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
954 lprof->lp_md, lprof->lp_dt);
956 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
957 strlen(ll_instance) + 2);
959 GOTO(out_free, err = -ENOMEM);
960 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
962 OBD_ALLOC(md, strlen(lprof->lp_md) +
963 strlen(ll_instance) + 2);
965 GOTO(out_free, err = -ENOMEM);
966 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
968 /* connections, registrations, sb setup */
969 err = client_common_fill_super(sb, md, dt,
970 lsi->lsi_lmd->lmd_nllu,
971 lsi->lsi_lmd->lmd_nllg);
975 OBD_FREE(md, strlen(md) + 1);
977 OBD_FREE(dt, strlen(dt) + 1);
981 LCONSOLE_WARN("Client %s has started\n", profilenm);
984 } /* ll_fill_super */
987 void ll_put_super(struct super_block *sb)
989 struct config_llog_instance cfg;
990 char ll_instance[sizeof(sb) * 2 + 1];
991 struct obd_device *obd;
992 struct lustre_sb_info *lsi = s2lsi(sb);
993 struct ll_sb_info *sbi = ll_s2sbi(sb);
994 char *profilenm = get_profile_name(sb);
998 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
1000 ll_print_capa_stat(sbi);
1002 sprintf(ll_instance, "%p", sb);
1003 cfg.cfg_instance = ll_instance;
1004 lustre_end_log(sb, NULL, &cfg);
1006 if (sbi->ll_md_exp) {
1007 obd = class_exp2obd(sbi->ll_md_exp);
1009 force = obd->obd_force;
1012 /* We need to set force before the lov_disconnect in
1013 lustre_common_put_super, since l_d cleans up osc's as well. */
1016 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
1018 obd->obd_force = force;
1023 /* Only if client_common_fill_super succeeded */
1024 client_common_put_super(sb);
1027 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
1028 class_manual_cleanup(obd);
1032 class_del_profile(profilenm);
1035 lsi->lsi_llsbi = NULL;
1037 lustre_common_put_super(sb);
1039 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
1044 } /* client_put_super */
1046 #ifdef HAVE_REGISTER_CACHE
1047 #include <linux/cache_def.h>
1048 #ifdef HAVE_CACHE_RETURN_INT
1053 ll_shrink_cache(int priority, unsigned int gfp_mask)
1055 struct ll_sb_info *sbi;
1058 list_for_each_entry(sbi, &ll_super_blocks, ll_list)
1059 count += llap_shrink_cache(sbi, priority);
1061 #ifdef HAVE_CACHE_RETURN_INT
1066 struct cache_definition ll_cache_definition = {
1067 .name = "llap_cache",
1068 .shrink = ll_shrink_cache
1070 #endif /* HAVE_REGISTER_CACHE */
1072 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1074 struct inode *inode = NULL;
1075 /* NOTE: we depend on atomic igrab() -bzzz */
1076 lock_res_and_lock(lock);
1077 if (lock->l_ast_data) {
1078 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1079 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1080 inode = igrab(lock->l_ast_data);
1082 inode = lock->l_ast_data;
1083 ldlm_lock_debug(NULL, inode->i_state & I_FREEING ?
1085 lock, __FILE__, __func__, __LINE__,
1086 "l_ast_data %p is bogus: magic %08x",
1087 lock->l_ast_data, lli->lli_inode_magic);
1091 unlock_res_and_lock(lock);
1095 static int null_if_equal(struct ldlm_lock *lock, void *data)
1097 if (data == lock->l_ast_data) {
1098 lock->l_ast_data = NULL;
1100 if (lock->l_req_mode != lock->l_granted_mode)
1101 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1104 return LDLM_ITER_CONTINUE;
1107 void ll_clear_inode(struct inode *inode)
1109 struct ll_inode_info *lli = ll_i2info(inode);
1110 struct ll_sb_info *sbi = ll_i2sbi(inode);
1113 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1114 inode->i_generation, inode);
1116 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1117 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1118 null_if_equal, inode);
1120 LASSERT(!lli->lli_open_fd_write_count);
1121 LASSERT(!lli->lli_open_fd_read_count);
1122 LASSERT(!lli->lli_open_fd_exec_count);
1124 if (lli->lli_mds_write_och)
1125 ll_md_real_close(inode, FMODE_WRITE);
1126 if (lli->lli_mds_exec_och)
1127 ll_md_real_close(inode, FMODE_EXEC);
1128 if (lli->lli_mds_read_och)
1129 ll_md_real_close(inode, FMODE_READ);
1132 obd_change_cbdata(sbi->ll_dt_exp, lli->lli_smd,
1133 null_if_equal, inode);
1135 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1136 lli->lli_smd = NULL;
1139 if (lli->lli_symlink_name) {
1140 OBD_FREE(lli->lli_symlink_name,
1141 strlen(lli->lli_symlink_name) + 1);
1142 lli->lli_symlink_name = NULL;
1145 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1146 LASSERT(lli->lli_posix_acl == NULL);
1147 if (lli->lli_remote_perms) {
1148 free_rmtperm_hash(lli->lli_remote_perms);
1149 lli->lli_remote_perms = NULL;
1152 #ifdef CONFIG_FS_POSIX_ACL
1153 else if (lli->lli_posix_acl) {
1154 LASSERT(atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1155 LASSERT(lli->lli_remote_perms == NULL);
1156 posix_acl_release(lli->lli_posix_acl);
1157 lli->lli_posix_acl = NULL;
1160 lli->lli_inode_magic = LLI_INODE_DEAD;
1162 #ifdef HAVE_EXPORT___IGET
1163 spin_lock(&sbi->ll_deathrow_lock);
1164 list_del_init(&lli->lli_dead_list);
1165 spin_unlock(&sbi->ll_deathrow_lock);
1167 ll_clear_inode_capas(inode);
1172 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1173 struct md_open_data **mod)
1175 struct lustre_md md;
1176 struct ll_sb_info *sbi = ll_i2sbi(inode);
1177 struct ptlrpc_request *request = NULL;
1181 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1182 LUSTRE_OPC_ANY, NULL);
1183 if (IS_ERR(op_data))
1184 RETURN(PTR_ERR(op_data));
1186 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1189 ptlrpc_req_finished(request);
1190 if (rc == -ENOENT) {
1192 /* Unlinked special device node? Or just a race?
1193 * Pretend we done everything. */
1194 if (!S_ISREG(inode->i_mode) &&
1195 !S_ISDIR(inode->i_mode))
1196 rc = inode_setattr(inode, &op_data->op_attr);
1197 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1198 CERROR("md_setattr fails: rc = %d\n", rc);
1203 rc = md_get_lustre_md(sbi->ll_md_exp, request, REPLY_REC_OFF,
1204 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
1206 ptlrpc_req_finished(request);
1210 /* We call inode_setattr to adjust timestamps.
1211 * If there is at least some data in file, we cleared ATTR_SIZE
1212 * above to avoid invoking vmtruncate, otherwise it is important
1213 * to call vmtruncate in inode_setattr to update inode->i_size
1215 rc = inode_setattr(inode, &op_data->op_attr);
1217 /* Extract epoch data if obtained. */
1218 op_data->op_handle = md.body->handle;
1219 op_data->op_ioepoch = md.body->ioepoch;
1221 ll_update_inode(inode, &md);
1222 ptlrpc_req_finished(request);
1227 /* Close IO epoch and send Size-on-MDS attribute update. */
1228 static int ll_setattr_done_writing(struct inode *inode,
1229 struct md_op_data *op_data,
1230 struct md_open_data *mod)
1232 struct ll_inode_info *lli = ll_i2info(inode);
1236 LASSERT(op_data != NULL);
1237 if (!S_ISREG(inode->i_mode))
1240 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1241 op_data->op_ioepoch, PFID(&lli->lli_fid));
1243 op_data->op_flags = MF_EPOCH_CLOSE | MF_SOM_CHANGE;
1244 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1245 if (rc == -EAGAIN) {
1246 /* MDS has instructed us to obtain Size-on-MDS attribute
1247 * from OSTs and send setattr to back to MDS. */
1248 rc = ll_sizeonmds_update(inode, mod, &op_data->op_handle,
1249 op_data->op_ioepoch);
1251 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1257 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1258 * object(s) determine the file size and mtime. Otherwise, the MDS will
1259 * keep these values until such a time that objects are allocated for it.
1260 * We do the MDS operations first, as it is checking permissions for us.
1261 * We don't to the MDS RPC if there is nothing that we want to store there,
1262 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1263 * going to do an RPC anyways.
1265 * If we are doing a truncate, we will send the mtime and ctime updates
1266 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1267 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1270 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1272 struct ll_inode_info *lli = ll_i2info(inode);
1273 struct lov_stripe_md *lsm = lli->lli_smd;
1274 struct ll_sb_info *sbi = ll_i2sbi(inode);
1275 struct md_op_data *op_data = NULL;
1276 struct md_open_data *mod = NULL;
1277 int ia_valid = attr->ia_valid;
1278 int rc = 0, rc1 = 0;
1281 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1283 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1285 if (ia_valid & ATTR_SIZE) {
1286 if (attr->ia_size > ll_file_maxbytes(inode)) {
1287 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1288 attr->ia_size, ll_file_maxbytes(inode));
1292 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1295 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1296 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1297 if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
1301 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1302 if (attr->ia_valid & ATTR_CTIME) {
1303 attr->ia_ctime = CURRENT_TIME;
1304 attr->ia_valid |= ATTR_CTIME_SET;
1306 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1307 attr->ia_atime = CURRENT_TIME;
1308 attr->ia_valid |= ATTR_ATIME_SET;
1310 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1311 attr->ia_mtime = CURRENT_TIME;
1312 attr->ia_valid |= ATTR_MTIME_SET;
1314 if ((attr->ia_valid & ATTR_CTIME) && !(attr->ia_valid & ATTR_MTIME)) {
1315 /* To avoid stale mtime on mds, obtain it from ost and send
1317 rc = ll_glimpse_size(inode, 0);
1321 attr->ia_valid |= ATTR_MTIME_SET | ATTR_MTIME;
1322 attr->ia_mtime = inode->i_mtime;
1325 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1326 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1327 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1330 /* NB: ATTR_SIZE will only be set after this point if the size
1331 * resides on the MDS, ie, this file has no objects. */
1333 attr->ia_valid &= ~ATTR_SIZE;
1335 /* We always do an MDS RPC, even if we're only changing the size;
1336 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1338 OBD_ALLOC_PTR(op_data);
1339 if (op_data == NULL)
1342 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1344 /* Open epoch for truncate. */
1345 if (ia_valid & ATTR_SIZE)
1346 op_data->op_flags = MF_EPOCH_OPEN;
1348 rc = ll_md_setattr(inode, op_data, &mod);
1352 if (op_data->op_ioepoch)
1353 CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID" for "
1354 "truncate\n", op_data->op_ioepoch, PFID(&lli->lli_fid));
1356 if (!lsm || !S_ISREG(inode->i_mode)) {
1357 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1361 /* We really need to get our PW lock before we change inode->i_size.
1362 * If we don't we can race with other i_size updaters on our node, like
1363 * ll_file_read. We can also race with i_size propogation to other
1364 * nodes through dirtying and writeback of final cached pages. This
1365 * last one is especially bad for racing o_append users on other
1367 if (ia_valid & ATTR_SIZE) {
1368 ldlm_policy_data_t policy = { .l_extent = {attr->ia_size,
1370 struct lustre_handle lockh = { 0 };
1371 int err, ast_flags = 0;
1372 /* XXX when we fix the AST intents to pass the discard-range
1373 * XXX extent, make ast_flags always LDLM_AST_DISCARD_DATA
1375 if (attr->ia_size == 0)
1376 ast_flags = LDLM_AST_DISCARD_DATA;
1378 UNLOCK_INODE_MUTEX(inode);
1379 UP_WRITE_I_ALLOC_SEM(inode);
1380 rc = ll_extent_lock(NULL, inode, lsm, LCK_PW, &policy, &lockh,
1382 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
1383 DOWN_WRITE_I_ALLOC_SEM(inode);
1384 LOCK_INODE_MUTEX(inode);
1386 LOCK_INODE_MUTEX(inode);
1387 DOWN_WRITE_I_ALLOC_SEM(inode);
1392 /* Only ll_inode_size_lock is taken at this level.
1393 * lov_stripe_lock() is grabbed by ll_truncate() only over
1394 * call to obd_adjust_kms(). If vmtruncate returns 0, then
1395 * ll_truncate dropped ll_inode_size_lock() */
1396 ll_inode_size_lock(inode, 0);
1397 rc = vmtruncate(inode, attr->ia_size);
1399 LASSERT(atomic_read(&lli->lli_size_sem.count) <= 0);
1400 ll_inode_size_unlock(inode, 0);
1403 err = ll_extent_unlock(NULL, inode, lsm, LCK_PW, &lockh);
1405 CERROR("ll_extent_unlock failed: %d\n", err);
1409 } else if (ia_valid & (ATTR_MTIME | ATTR_MTIME_SET)) {
1411 struct obd_info oinfo = { { { 0 } } };
1414 CDEBUG(D_INODE, "set mtime on OST inode %lu to %lu\n",
1415 inode->i_ino, LTIME_S(attr->ia_mtime));
1419 oa->o_id = lsm->lsm_object_id;
1420 oa->o_gr = lsm->lsm_object_gr;
1421 oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
1423 flags = OBD_MD_FLTYPE | OBD_MD_FLATIME |
1424 OBD_MD_FLMTIME | OBD_MD_FLCTIME |
1425 OBD_MD_FLFID | OBD_MD_FLGENER |
1428 obdo_from_inode(oa, inode, flags);
1432 oinfo.oi_capa = ll_mdscapa_get(inode);
1434 /* XXX: this looks unnecessary now. */
1435 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1436 capa_put(oinfo.oi_capa);
1438 CERROR("obd_setattr_async fails: rc=%d\n", rc);
1447 if (op_data->op_ioepoch)
1448 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1449 ll_finish_md_op_data(op_data);
1451 return rc ? rc : rc1;
1454 int ll_setattr(struct dentry *de, struct iattr *attr)
1456 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1457 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1458 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1460 return ll_setattr_raw(de->d_inode, attr);
1463 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1466 struct ll_sb_info *sbi = ll_s2sbi(sb);
1467 struct obd_statfs obd_osfs;
1471 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age);
1473 CERROR("md_statfs fails: rc = %d\n", rc);
1477 osfs->os_type = sb->s_magic;
1479 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1480 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1482 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1483 &obd_osfs, max_age);
1485 CERROR("obd_statfs fails: rc = %d\n", rc);
1489 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1490 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1493 osfs->os_bsize = obd_osfs.os_bsize;
1494 osfs->os_blocks = obd_osfs.os_blocks;
1495 osfs->os_bfree = obd_osfs.os_bfree;
1496 osfs->os_bavail = obd_osfs.os_bavail;
1498 /* If we don't have as many objects free on the OST as inodes
1499 * on the MDS, we reduce the total number of inodes to
1500 * compensate, so that the "inodes in use" number is correct.
1502 if (obd_osfs.os_ffree < osfs->os_ffree) {
1503 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1505 osfs->os_ffree = obd_osfs.os_ffree;
1510 #ifndef HAVE_STATFS_DENTRY_PARAM
1511 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1514 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1516 struct super_block *sb = de->d_sb;
1518 struct obd_statfs osfs;
1521 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1522 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1524 /* For now we will always get up-to-date statfs values, but in the
1525 * future we may allow some amount of caching on the client (e.g.
1526 * from QOS or lprocfs updates). */
1527 rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - 1);
1531 statfs_unpack(sfs, &osfs);
1533 /* We need to downshift for all 32-bit kernels, because we can't
1534 * tell if the kernel is being called via sys_statfs64() or not.
1535 * Stop before overflowing f_bsize - in which case it is better
1536 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1537 if (sizeof(long) < 8) {
1538 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1541 osfs.os_blocks >>= 1;
1542 osfs.os_bfree >>= 1;
1543 osfs.os_bavail >>= 1;
1547 sfs->f_blocks = osfs.os_blocks;
1548 sfs->f_bfree = osfs.os_bfree;
1549 sfs->f_bavail = osfs.os_bavail;
1554 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1556 struct ll_inode_info *lli;
1557 struct lov_stripe_md *lsm;
1559 lli = ll_i2info(inode);
1560 LASSERT(lli->lli_size_sem_owner != current);
1561 down(&lli->lli_size_sem);
1562 LASSERT(lli->lli_size_sem_owner == NULL);
1563 lli->lli_size_sem_owner = current;
1565 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1568 lov_stripe_lock(lsm);
1571 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1573 struct ll_inode_info *lli;
1574 struct lov_stripe_md *lsm;
1576 lli = ll_i2info(inode);
1578 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1581 lov_stripe_unlock(lsm);
1582 LASSERT(lli->lli_size_sem_owner == current);
1583 lli->lli_size_sem_owner = NULL;
1584 up(&lli->lli_size_sem);
1587 static void ll_replace_lsm(struct inode *inode, struct lov_stripe_md *lsm)
1589 struct ll_inode_info *lli = ll_i2info(inode);
1591 dump_lsm(D_INODE, lsm);
1592 dump_lsm(D_INODE, lli->lli_smd);
1593 LASSERTF(lsm->lsm_magic == LOV_MAGIC_JOIN,
1594 "lsm must be joined lsm %p\n", lsm);
1595 obd_free_memmd(ll_i2dtexp(inode), &lli->lli_smd);
1596 CDEBUG(D_INODE, "replace lsm %p to lli_smd %p for inode %lu%u(%p)\n",
1597 lsm, lli->lli_smd, inode->i_ino, inode->i_generation, inode);
1599 lli->lli_maxbytes = lsm->lsm_maxbytes;
1600 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1601 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1604 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1606 struct ll_inode_info *lli = ll_i2info(inode);
1607 struct mdt_body *body = md->body;
1608 struct lov_stripe_md *lsm = md->lsm;
1609 struct ll_sb_info *sbi = ll_i2sbi(inode);
1611 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1613 if (lli->lli_smd == NULL) {
1614 if (lsm->lsm_magic != LOV_MAGIC &&
1615 lsm->lsm_magic != LOV_MAGIC_JOIN) {
1616 dump_lsm(D_ERROR, lsm);
1619 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1620 lsm, inode->i_ino, inode->i_generation, inode);
1621 /* ll_inode_size_lock() requires it is only called
1622 * with lli_smd != NULL or lock_lsm == 0 or we can
1623 * race between lock/unlock. bug 9547 */
1625 lli->lli_maxbytes = lsm->lsm_maxbytes;
1626 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1627 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1629 if (lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1630 lli->lli_smd->lsm_stripe_count ==
1631 lsm->lsm_stripe_count) {
1632 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1633 CERROR("lsm mismatch for inode %ld\n",
1635 CERROR("lli_smd:\n");
1636 dump_lsm(D_ERROR, lli->lli_smd);
1638 dump_lsm(D_ERROR, lsm);
1642 ll_replace_lsm(inode, lsm);
1644 if (lli->lli_smd != lsm)
1645 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1648 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1649 if (body->valid & OBD_MD_FLRMTPERM)
1650 ll_update_remote_perm(inode, md->remote_perm);
1652 #ifdef CONFIG_FS_POSIX_ACL
1653 else if (body->valid & OBD_MD_FLACL) {
1654 spin_lock(&lli->lli_lock);
1655 if (lli->lli_posix_acl)
1656 posix_acl_release(lli->lli_posix_acl);
1657 lli->lli_posix_acl = md->posix_acl;
1658 spin_unlock(&lli->lli_lock);
1661 if (body->valid & OBD_MD_FLATIME &&
1662 body->atime > LTIME_S(inode->i_atime))
1663 LTIME_S(inode->i_atime) = body->atime;
1665 /* mtime is always updated with ctime, but can be set in past.
1666 As write and utime(2) may happen within 1 second, and utime's
1667 mtime has a priority over write's one, so take mtime from mds
1668 for the same ctimes. */
1669 if (body->valid & OBD_MD_FLCTIME &&
1670 body->ctime >= LTIME_S(inode->i_ctime)) {
1671 LTIME_S(inode->i_ctime) = body->ctime;
1672 if (body->valid & OBD_MD_FLMTIME) {
1673 CDEBUG(D_INODE, "setting ino %lu mtime "
1674 "from %lu to "LPU64"\n", inode->i_ino,
1675 LTIME_S(inode->i_mtime), body->mtime);
1676 LTIME_S(inode->i_mtime) = body->mtime;
1679 if (body->valid & OBD_MD_FLMODE)
1680 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1681 if (body->valid & OBD_MD_FLTYPE)
1682 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1683 if (S_ISREG(inode->i_mode)) {
1684 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1686 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1688 #ifdef HAVE_INODE_BLKSIZE
1689 inode->i_blksize = 1<<inode->i_blkbits;
1691 if (body->valid & OBD_MD_FLUID)
1692 inode->i_uid = body->uid;
1693 if (body->valid & OBD_MD_FLGID)
1694 inode->i_gid = body->gid;
1695 if (body->valid & OBD_MD_FLFLAGS)
1696 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1697 if (body->valid & OBD_MD_FLNLINK)
1698 inode->i_nlink = body->nlink;
1699 if (body->valid & OBD_MD_FLRDEV)
1700 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
1701 inode->i_rdev = body->rdev;
1703 inode->i_rdev = old_decode_dev(body->rdev);
1705 if (body->valid & OBD_MD_FLSIZE) {
1706 if (ll_i2mdexp(inode)->exp_connect_flags & OBD_CONNECT_SOM) {
1707 if (lli->lli_flags & (LLIF_DONE_WRITING |
1708 LLIF_EPOCH_PENDING |
1710 CWARN("ino %lu flags %lu still has size authority!"
1711 "do not trust the size got from MDS\n",
1712 inode->i_ino, lli->lli_flags);
1714 i_size_write(inode, body->size);
1715 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1718 i_size_write(inode, body->size);
1721 if (body->valid & OBD_MD_FLBLOCKS)
1722 inode->i_blocks = body->blocks;
1725 if (body->valid & OBD_MD_FLID) {
1726 /* FID shouldn't be changed! */
1727 if (fid_is_sane(&lli->lli_fid)) {
1728 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1729 "Trying to change FID "DFID
1730 " to the "DFID", inode %lu/%u(%p)\n",
1731 PFID(&lli->lli_fid), PFID(&body->fid1),
1732 inode->i_ino, inode->i_generation, inode);
1734 lli->lli_fid = body->fid1;
1737 LASSERT(fid_seq(&lli->lli_fid) != 0);
1739 if (body->valid & OBD_MD_FLMDSCAPA) {
1740 LASSERT(md->mds_capa);
1741 ll_add_capa(inode, md->mds_capa);
1743 if (body->valid & OBD_MD_FLOSSCAPA) {
1744 LASSERT(md->oss_capa);
1745 ll_add_capa(inode, md->oss_capa);
1749 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
1750 static struct backing_dev_info ll_backing_dev_info = {
1751 .ra_pages = 0, /* No readahead */
1752 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12))
1753 .capabilities = 0, /* Does contribute to dirty memory */
1755 .memory_backed = 0, /* Does contribute to dirty memory */
1760 void ll_read_inode2(struct inode *inode, void *opaque)
1762 struct lustre_md *md = opaque;
1763 struct ll_inode_info *lli = ll_i2info(inode);
1766 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1767 inode->i_ino, inode->i_generation, inode);
1771 LASSERT(!lli->lli_smd);
1773 /* Core attributes from the MDS first. This is a new inode, and
1774 * the VFS doesn't zero times in the core inode so we have to do
1775 * it ourselves. They will be overwritten by either MDS or OST
1776 * attributes - we just need to make sure they aren't newer. */
1777 LTIME_S(inode->i_mtime) = 0;
1778 LTIME_S(inode->i_atime) = 0;
1779 LTIME_S(inode->i_ctime) = 0;
1781 ll_update_inode(inode, md);
1783 /* OIDEBUG(inode); */
1785 if (S_ISREG(inode->i_mode)) {
1786 struct ll_sb_info *sbi = ll_i2sbi(inode);
1787 inode->i_op = &ll_file_inode_operations;
1788 inode->i_fop = sbi->ll_fop;
1789 inode->i_mapping->a_ops = &ll_aops;
1791 } else if (S_ISDIR(inode->i_mode)) {
1792 inode->i_op = &ll_dir_inode_operations;
1793 inode->i_fop = &ll_dir_operations;
1794 inode->i_mapping->a_ops = &ll_dir_aops;
1796 } else if (S_ISLNK(inode->i_mode)) {
1797 inode->i_op = &ll_fast_symlink_inode_operations;
1800 inode->i_op = &ll_special_inode_operations;
1802 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
1803 init_special_inode(inode, inode->i_mode,
1804 kdev_t_to_nr(inode->i_rdev));
1806 /* initializing backing dev info. */
1807 inode->i_mapping->backing_dev_info = &ll_backing_dev_info;
1809 init_special_inode(inode, inode->i_mode, inode->i_rdev);
1815 void ll_delete_inode(struct inode *inode)
1817 struct ll_sb_info *sbi = ll_i2sbi(inode);
1821 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1823 CERROR("fid_delete() failed, rc %d\n", rc);
1830 int ll_iocontrol(struct inode *inode, struct file *file,
1831 unsigned int cmd, unsigned long arg)
1833 struct ll_sb_info *sbi = ll_i2sbi(inode);
1834 struct ptlrpc_request *req = NULL;
1839 case EXT3_IOC_GETFLAGS: {
1840 struct mdt_body *body;
1841 struct obd_capa *oc;
1843 oc = ll_mdscapa_get(inode);
1844 rc = md_getattr(sbi->ll_md_exp, ll_inode2fid(inode), oc,
1845 OBD_MD_FLFLAGS, 0, &req);
1848 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1852 body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
1855 /*Now the ext3 will be packed directly back to client,
1856 *no need convert here*/
1857 flags = body->flags;
1859 ptlrpc_req_finished (req);
1861 RETURN(put_user(flags, (int *)arg));
1863 case EXT3_IOC_SETFLAGS: {
1864 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1865 struct obd_info oinfo = { { { 0 } } };
1866 struct md_op_data *op_data;
1868 if (get_user(flags, (int *)arg))
1872 OBDO_ALLOC(oinfo.oi_oa);
1876 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1877 LUSTRE_OPC_ANY, NULL);
1878 if (IS_ERR(op_data))
1879 RETURN(PTR_ERR(op_data));
1881 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1882 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1883 rc = md_setattr(sbi->ll_md_exp, op_data,
1884 NULL, 0, NULL, 0, &req, NULL);
1885 ll_finish_md_op_data(op_data);
1886 ptlrpc_req_finished(req);
1887 if (rc || lsm == NULL) {
1888 OBDO_FREE(oinfo.oi_oa);
1892 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1893 oinfo.oi_oa->o_gr = lsm->lsm_object_gr;
1894 oinfo.oi_oa->o_flags = flags;
1895 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1897 oinfo.oi_capa = ll_mdscapa_get(inode);
1899 obdo_from_inode(oinfo.oi_oa, inode,
1900 OBD_MD_FLFID | OBD_MD_FLGENER);
1901 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1902 capa_put(oinfo.oi_capa);
1903 OBDO_FREE(oinfo.oi_oa);
1905 if (rc != -EPERM && rc != -EACCES)
1906 CERROR("md_setattr_async fails: rc = %d\n", rc);
1910 inode->i_flags = ll_ext_to_inode_flags(flags |
1911 MDS_BFLAG_EXT_FLAGS);
1921 int ll_flush_ctx(struct inode *inode)
1923 struct ll_sb_info *sbi = ll_i2sbi(inode);
1925 CDEBUG(D_SEC, "flush context for user %d\n", current->uid);
1927 obd_set_info_async(sbi->ll_md_exp,
1928 sizeof(KEY_FLUSH_CTX) - 1, KEY_FLUSH_CTX,
1930 obd_set_info_async(sbi->ll_dt_exp,
1931 sizeof(KEY_FLUSH_CTX) - 1, KEY_FLUSH_CTX,
1936 /* umount -f client means force down, don't save state */
1937 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1938 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1940 struct super_block *sb = vfsmnt->mnt_sb;
1942 void ll_umount_begin(struct super_block *sb)
1945 struct lustre_sb_info *lsi = s2lsi(sb);
1946 struct ll_sb_info *sbi = ll_s2sbi(sb);
1947 struct obd_device *obd;
1948 struct obd_ioctl_data ioc_data = { 0 };
1951 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1952 if (!(flags & MNT_FORCE)) {
1958 /* Tell the MGC we got umount -f */
1959 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1961 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1962 sb->s_count, atomic_read(&sb->s_active));
1964 obd = class_exp2obd(sbi->ll_md_exp);
1966 CERROR("Invalid MDC connection handle "LPX64"\n",
1967 sbi->ll_md_exp->exp_handle.h_cookie);
1972 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp, sizeof ioc_data,
1975 obd = class_exp2obd(sbi->ll_dt_exp);
1977 CERROR("Invalid LOV connection handle "LPX64"\n",
1978 sbi->ll_dt_exp->exp_handle.h_cookie);
1984 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp, sizeof ioc_data,
1987 /* Really, we'd like to wait until there are no requests outstanding,
1988 * and then continue. For now, we just invalidate the requests,
1989 * schedule, and hope.
1996 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1998 struct ll_sb_info *sbi = ll_s2sbi(sb);
2002 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
2003 read_only = *flags & MS_RDONLY;
2004 err = obd_set_info_async(sbi->ll_md_exp,
2005 sizeof(KEY_READ_ONLY) - 1,
2006 KEY_READ_ONLY, sizeof(read_only),
2009 CERROR("Failed to change the read-only flag during "
2010 "remount: %d\n", err);
2015 sb->s_flags |= MS_RDONLY;
2017 sb->s_flags &= ~MS_RDONLY;
2022 int ll_prep_inode(struct inode **inode, struct ptlrpc_request *req,
2023 int offset, struct super_block *sb)
2025 struct ll_sb_info *sbi = NULL;
2026 struct lustre_md md;
2030 LASSERT(*inode || sb);
2031 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
2032 prune_deathrow(sbi, 1);
2033 memset(&md, 0, sizeof(struct lustre_md));
2035 rc = md_get_lustre_md(sbi->ll_md_exp, req, offset,
2036 sbi->ll_dt_exp, sbi->ll_md_exp, &md);
2041 ll_update_inode(*inode, &md);
2043 LASSERT(sb != NULL);
2046 * At this point server returns to client's same fid as client
2047 * generated for creating. So using ->fid1 is okay here.
2049 LASSERT(fid_is_sane(&md.body->fid1));
2051 *inode = ll_iget(sb, ll_fid_build_ino(sbi, &md.body->fid1), &md);
2052 if (*inode == NULL || is_bad_inode(*inode)) {
2054 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2055 #ifdef CONFIG_FS_POSIX_ACL
2057 posix_acl_release(md.posix_acl);
2058 md.posix_acl = NULL;
2062 CERROR("new_inode -fatal: rc %d\n", rc);
2067 rc = obd_checkmd(sbi->ll_dt_exp, sbi->ll_md_exp,
2068 ll_i2info(*inode)->lli_smd);
2070 md_free_lustre_md(sbi->ll_md_exp, &md);
2074 char *llap_origins[] = {
2075 [LLAP_ORIGIN_UNKNOWN] = "--",
2076 [LLAP_ORIGIN_READPAGE] = "rp",
2077 [LLAP_ORIGIN_READAHEAD] = "ra",
2078 [LLAP_ORIGIN_COMMIT_WRITE] = "cw",
2079 [LLAP_ORIGIN_WRITEPAGE] = "wp",
2082 struct ll_async_page *llite_pglist_next_llap(struct ll_sb_info *sbi,
2083 struct list_head *list)
2085 struct ll_async_page *llap;
2086 struct list_head *pos;
2088 list_for_each(pos, list) {
2089 if (pos == &sbi->ll_pglist)
2091 llap = list_entry(pos, struct ll_async_page, llap_pglist_item);
2092 if (llap->llap_page == NULL)
2100 int ll_obd_statfs(struct inode *inode, void *arg)
2102 struct ll_sb_info *sbi = NULL;
2103 struct obd_device *client_obd = NULL, *lov_obd = NULL;
2104 struct lov_obd *lov = NULL;
2105 struct obd_statfs stat_buf = {0};
2107 struct obd_ioctl_data *data = NULL;
2111 if (!inode || !(sbi = ll_i2sbi(inode)))
2112 GOTO(out_statfs, rc = -EINVAL);
2114 rc = obd_ioctl_getdata(&buf, &len, arg);
2116 GOTO(out_statfs, rc);
2119 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2120 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2121 GOTO(out_statfs, rc = -EINVAL);
2123 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2124 memcpy(&index, data->ioc_inlbuf2, sizeof(__u32));
2126 if (type == LL_STATFS_MDC) {
2128 GOTO(out_statfs, rc = -ENODEV);
2129 client_obd = class_exp2obd(sbi->ll_md_exp);
2130 } else if (type == LL_STATFS_LOV) {
2131 lov_obd = class_exp2obd(sbi->ll_dt_exp);
2132 lov = &lov_obd->u.lov;
2134 if ((index >= lov->desc.ld_tgt_count))
2135 GOTO(out_statfs, rc = -ENODEV);
2136 if (!lov->lov_tgts[index])
2137 /* Try again with the next index */
2138 GOTO(out_statfs, rc = -EAGAIN);
2140 client_obd = class_exp2obd(lov->lov_tgts[index]->ltd_exp);
2141 if (!lov->lov_tgts[index]->ltd_active)
2142 GOTO(out_uuid, rc = -ENODATA);
2146 GOTO(out_statfs, rc = -EINVAL);
2148 rc = obd_statfs(client_obd, &stat_buf, cfs_time_current_64() - 1);
2150 GOTO(out_statfs, rc);
2152 if (copy_to_user(data->ioc_pbuf1, &stat_buf, data->ioc_plen1))
2153 GOTO(out_statfs, rc = -EFAULT);
2156 if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(client_obd),
2162 obd_ioctl_freedata(buf, len);
2166 int ll_process_config(struct lustre_cfg *lcfg)
2170 struct lprocfs_static_vars lvars;
2174 lprocfs_init_vars(llite, &lvars);
2176 /* The instance name contains the sb: lustre-client-aacfe000 */
2177 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2178 if (!ptr || !*(++ptr))
2180 if (sscanf(ptr, "%lx", &x) != 1)
2183 /* This better be a real Lustre superblock! */
2184 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2186 /* Note we have not called client_common_fill_super yet, so
2187 proc fns must be able to handle that! */
2188 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2193 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2194 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2195 struct inode *i1, struct inode *i2,
2196 const char *name, int namelen,
2197 int mode, __u32 opc, void *data)
2199 LASSERT(i1 != NULL);
2201 if (namelen > ll_i2sbi(i1)->ll_namelen)
2202 return ERR_PTR(-ENAMETOOLONG);
2204 if (op_data == NULL)
2205 OBD_ALLOC_PTR(op_data);
2207 if (op_data == NULL)
2208 return ERR_PTR(-ENOMEM);
2210 ll_i2gids(op_data->op_suppgids, i1, i2);
2211 op_data->op_fid1 = *ll_inode2fid(i1);
2212 op_data->op_capa1 = ll_mdscapa_get(i1);
2215 op_data->op_fid2 = *ll_inode2fid(i2);
2216 op_data->op_capa2 = ll_mdscapa_get(i2);
2218 fid_zero(&op_data->op_fid2);
2221 op_data->op_name = name;
2222 op_data->op_namelen = namelen;
2223 op_data->op_mode = mode;
2224 op_data->op_mod_time = CURRENT_SECONDS;
2225 op_data->op_fsuid = current->fsuid;
2226 op_data->op_fsgid = current->fsgid;
2227 op_data->op_cap = current->cap_effective;
2228 op_data->op_bias = MDS_CHECK_SPLIT;
2229 op_data->op_opc = opc;
2230 op_data->op_mds = 0;
2231 op_data->op_data = data;
2236 void ll_finish_md_op_data(struct md_op_data *op_data)
2238 capa_put(op_data->op_capa1);
2239 capa_put(op_data->op_capa2);
2240 OBD_FREE_PTR(op_data);
2243 int ll_ioctl_getfacl(struct inode *inode, struct rmtacl_ioctl_data *ioc)
2245 struct ll_sb_info *sbi = ll_i2sbi(inode);
2246 struct ptlrpc_request *req = NULL;
2247 struct mdt_body *body;
2249 struct obd_capa *oc;
2253 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT))
2256 LASSERT(ioc->cmd && ioc->cmd_len && ioc->res && ioc->res_len);
2258 OBD_ALLOC(cmd, ioc->cmd_len);
2261 if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
2262 GOTO(out, rc = -EFAULT);
2264 oc = ll_mdscapa_get(inode);
2265 rc = md_getxattr(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
2266 OBD_MD_FLXATTR, XATTR_NAME_LUSTRE_ACL, cmd,
2267 ioc->cmd_len, ioc->res_len, 0, &req);
2270 CERROR("mdc_getxattr %s [%s] failed: %d\n",
2271 XATTR_NAME_LUSTRE_ACL, cmd, rc);
2275 body = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*body));
2278 buflen = lustre_msg_buflen(req->rq_repmsg, REPLY_REC_OFF);
2279 LASSERT(buflen <= ioc->res_len);
2280 buf = lustre_msg_string(req->rq_repmsg, REPLY_REC_OFF + 1, ioc->res_len);
2282 if (copy_to_user(ioc->res, buf, buflen))
2283 GOTO(out, rc = -EFAULT);
2287 ptlrpc_req_finished(req);
2288 OBD_FREE(cmd, ioc->cmd_len);
2292 int ll_ioctl_setfacl(struct inode *inode, struct rmtacl_ioctl_data *ioc)
2294 struct ll_sb_info *sbi = ll_i2sbi(inode);
2295 struct ptlrpc_request *req = NULL;
2297 struct obd_capa *oc;
2301 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT))
2304 if (!(sbi->ll_flags & LL_SBI_ACL))
2305 RETURN(-EOPNOTSUPP);
2307 LASSERT(ioc->cmd && ioc->cmd_len && ioc->res && ioc->res_len);
2309 OBD_ALLOC(cmd, ioc->cmd_len);
2312 if (copy_from_user(cmd, ioc->cmd, ioc->cmd_len))
2313 GOTO(out, rc = -EFAULT);
2315 oc = ll_mdscapa_get(inode);
2316 rc = md_setxattr(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
2317 OBD_MD_FLXATTR, XATTR_NAME_LUSTRE_ACL, cmd,
2318 ioc->cmd_len, ioc->res_len, 0, &req);
2321 CERROR("mdc_setxattr %s [%s] failed: %d\n",
2322 XATTR_NAME_LUSTRE_ACL, cmd, rc);
2326 buflen = lustre_msg_buflen(req->rq_repmsg, REPLY_REC_OFF);
2327 LASSERT(buflen <= ioc->res_len);
2328 buf = lustre_msg_string(req->rq_repmsg, REPLY_REC_OFF, ioc->res_len);
2330 if (copy_to_user(ioc->res, buf, buflen))
2331 GOTO(out, rc = -EFAULT);
2335 ptlrpc_req_finished(req);
2336 OBD_FREE(cmd, ioc->cmd_len);