1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2011, 2012, Whamcloud, Inc.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/llite/llite_lib.c
40 * Lustre Light Super operations
43 #define DEBUG_SUBSYSTEM S_LLITE
45 #include <linux/module.h>
46 #include <linux/types.h>
47 #include <linux/version.h>
50 #include <lustre_lite.h>
51 #include <lustre_ha.h>
52 #include <lustre_dlm.h>
53 #include <lprocfs_status.h>
54 #include <lustre_disk.h>
55 #include <lustre_param.h>
56 #include <lustre_log.h>
57 #include <cl_object.h>
58 #include <obd_cksum.h>
59 #include "llite_internal.h"
61 cfs_mem_cache_t *ll_file_data_slab;
63 CFS_LIST_HEAD(ll_super_blocks);
64 cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
66 #ifndef MS_HAS_NEW_AOPS
67 extern struct address_space_operations ll_aops;
68 extern struct address_space_operations ll_dir_aops;
70 extern struct address_space_operations_ext ll_aops;
71 extern struct address_space_operations_ext ll_dir_aops;
75 #define log2(n) cfs_ffz(~(n))
78 static struct ll_sb_info *ll_init_sbi(void)
80 struct ll_sb_info *sbi = NULL;
87 OBD_ALLOC(sbi, sizeof(*sbi));
91 cfs_spin_lock_init(&sbi->ll_lock);
92 cfs_mutex_init(&sbi->ll_lco.lco_lock);
93 cfs_spin_lock_init(&sbi->ll_pp_extent_lock);
94 cfs_spin_lock_init(&sbi->ll_process_lock);
95 sbi->ll_rw_stats_on = 0;
98 pages = si.totalram - si.totalhigh;
99 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
100 #ifdef HAVE_BGL_SUPPORT
101 sbi->ll_async_page_max = pages / 4;
103 sbi->ll_async_page_max = pages / 2;
106 sbi->ll_async_page_max = (pages / 4) * 3;
109 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
110 SBI_DEFAULT_READAHEAD_MAX);
111 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
112 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
113 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
114 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
115 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
117 ll_generate_random_uuid(uuid);
118 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
119 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
121 cfs_spin_lock(&ll_sb_lock);
122 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
123 cfs_spin_unlock(&ll_sb_lock);
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 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
136 cfs_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 cfs_spin_lock(&ll_sb_lock);
157 cfs_list_del(&sbi->ll_list);
158 cfs_spin_unlock(&ll_sb_lock);
159 OBD_FREE(sbi, sizeof(*sbi));
164 static struct dentry_operations ll_d_root_ops = {
165 .d_compare = ll_dcompare,
166 .d_revalidate = ll_revalidate_nd,
169 static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
170 struct vfsmount *mnt)
172 struct inode *root = 0;
173 struct ll_sb_info *sbi = ll_s2sbi(sb);
174 struct obd_device *obd;
175 struct obd_capa *oc = NULL;
176 struct obd_statfs *osfs = NULL;
177 struct ptlrpc_request *request = NULL;
178 struct obd_connect_data *data = NULL;
179 struct obd_uuid *uuid;
180 struct md_op_data *op_data;
181 struct lustre_md lmd;
183 int size, err, checksum;
186 obd = class_name2obd(md);
188 CERROR("MD %s: not setup or attached\n", md);
202 if (proc_lustre_fs_root) {
203 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
206 CERROR("could not register mount in /proc/fs/lustre\n");
209 /* indicate the features supported by this client */
210 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
211 OBD_CONNECT_ATTRFID |
212 OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE |
213 OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
214 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
215 OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 |
216 OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR |
217 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH;
219 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
220 data->ocd_connect_flags |= OBD_CONNECT_SOM;
222 #ifdef HAVE_LRU_RESIZE_SUPPORT
223 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
224 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
226 #ifdef CONFIG_FS_POSIX_ACL
227 data->ocd_connect_flags |= OBD_CONNECT_ACL;
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 = PTLRPC_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 err = obd_fid_init(sbi->ll_md_exp);
273 CERROR("Can't init metadata layer FID infrastructure, "
278 err = obd_statfs(obd, osfs,
279 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
281 GOTO(out_md_fid, err);
283 /* This needs to be after statfs to ensure connect has finished.
284 * Note that "data" does NOT contain the valid connect reply.
285 * If connecting to a 1.8 server there will be no LMV device, so
286 * we can access the MDC export directly and exp_connect_flags will
287 * be non-zero, but if accessing an upgraded 2.1 server it will
288 * have the correct flags filled in.
289 * XXX: fill in the LMV exp_connect_flags from MDC(s). */
290 valid = sbi->ll_md_exp->exp_connect_flags & CLIENT_CONNECT_MDT_REQD;
291 if (sbi->ll_md_exp->exp_connect_flags != 0 &&
292 valid != CLIENT_CONNECT_MDT_REQD) {
295 OBD_ALLOC_WAIT(buf, CFS_PAGE_SIZE);
296 obd_connect_flags2str(buf, CFS_PAGE_SIZE,
297 valid ^ CLIENT_CONNECT_MDT_REQD, ",");
298 LCONSOLE_ERROR_MSG(0x170, "Server %s does not support "
299 "feature(s) needed for correct operation "
300 "of this client (%s). Please upgrade "
301 "server or downgrade client.\n",
302 sbi->ll_md_exp->exp_obd->obd_name, buf);
303 OBD_FREE(buf, CFS_PAGE_SIZE);
304 GOTO(out_md, err = -EPROTO);
307 size = sizeof(*data);
308 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
309 KEY_CONN_DATA, &size, data, NULL);
311 CERROR("Get connect data failed: %d \n", err);
315 LASSERT(osfs->os_bsize);
316 sb->s_blocksize = osfs->os_bsize;
317 sb->s_blocksize_bits = log2(osfs->os_bsize);
318 sb->s_magic = LL_SUPER_MAGIC;
319 sb->s_maxbytes = MAX_LFS_FILESIZE;
320 sbi->ll_namelen = osfs->os_namelen;
321 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
323 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
324 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
325 LCONSOLE_INFO("Disabling user_xattr feature because "
326 "it is not supported on the server\n");
327 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
330 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
332 sb->s_flags |= MS_POSIXACL;
334 sbi->ll_flags |= LL_SBI_ACL;
336 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
338 sb->s_flags &= ~MS_POSIXACL;
340 sbi->ll_flags &= ~LL_SBI_ACL;
343 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
344 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
345 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
346 LCONSOLE_INFO("client is set as remote by default.\n");
349 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
350 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
351 LCONSOLE_INFO("client claims to be remote, but server "
352 "rejected, forced to be local.\n");
356 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
357 LCONSOLE_INFO("client enabled MDS capability!\n");
358 sbi->ll_flags |= LL_SBI_MDS_CAPA;
361 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
362 LCONSOLE_INFO("client enabled OSS capability!\n");
363 sbi->ll_flags |= LL_SBI_OSS_CAPA;
366 if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
367 sbi->ll_flags |= LL_SBI_64BIT_HASH;
369 if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
370 sbi->ll_md_brw_size = data->ocd_brw_size;
372 sbi->ll_md_brw_size = CFS_PAGE_SIZE;
374 obd = class_name2obd(dt);
376 CERROR("DT %s: not setup or attached\n", dt);
377 GOTO(out_md_fid, err = -ENODEV);
380 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
381 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
382 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
383 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
384 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
385 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
386 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH |
387 OBD_CONNECT_MAXBYTES;
389 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
390 data->ocd_connect_flags |= OBD_CONNECT_SOM;
392 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
393 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
394 * disabled by default, because it can still be enabled on the
395 * fly via /proc. As a consequence, we still need to come to an
396 * agreement on the supported algorithms at connect time */
397 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
399 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
400 data->ocd_cksum_types = OBD_CKSUM_ADLER;
402 data->ocd_cksum_types = cksum_types_supported();
405 #ifdef HAVE_LRU_RESIZE_SUPPORT
406 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
408 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
409 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
411 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
412 "ocd_grant: %d\n", data->ocd_connect_flags,
413 data->ocd_version, data->ocd_grant);
415 obd->obd_upcall.onu_owner = &sbi->ll_lco;
416 obd->obd_upcall.onu_upcall = cl_ocd_update;
418 data->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
420 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
422 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
423 "recovery, of which this client is not a "
424 "part. Please wait for recovery to "
425 "complete, abort, or time out.\n", dt);
426 GOTO(out_md_fid, err);
428 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
429 GOTO(out_md_fid, err);
432 err = obd_fid_init(sbi->ll_dt_exp);
434 CERROR("Can't init data layer FID infrastructure, "
439 cfs_mutex_lock(&sbi->ll_lco.lco_lock);
440 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
441 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
442 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
443 cfs_mutex_unlock(&sbi->ll_lco.lco_lock);
445 fid_zero(&sbi->ll_root_fid);
446 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
448 CERROR("cannot mds_connect: rc = %d\n", err);
449 GOTO(out_lock_cn_cb, err);
451 if (!fid_is_sane(&sbi->ll_root_fid)) {
452 CERROR("Invalid root fid during mount\n");
453 GOTO(out_lock_cn_cb, err = -EINVAL);
455 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
457 sb->s_op = &lustre_super_operations;
458 #if THREAD_SIZE >= 8192
459 sb->s_export_op = &lustre_export_operations;
463 * XXX: move this to after cbd setup? */
464 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
465 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
466 valid |= OBD_MD_FLRMTPERM;
467 else if (sbi->ll_flags & LL_SBI_ACL)
468 valid |= OBD_MD_FLACL;
470 OBD_ALLOC_PTR(op_data);
472 GOTO(out_lock_cn_cb, err = -ENOMEM);
474 op_data->op_fid1 = sbi->ll_root_fid;
475 op_data->op_mode = 0;
476 op_data->op_capa1 = oc;
477 op_data->op_valid = valid;
479 err = md_getattr(sbi->ll_md_exp, op_data, &request);
482 OBD_FREE_PTR(op_data);
484 CERROR("md_getattr failed for root: rc = %d\n", err);
485 GOTO(out_lock_cn_cb, err);
487 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
488 sbi->ll_md_exp, &lmd);
490 CERROR("failed to understand root inode md: rc = %d\n", err);
491 ptlrpc_req_finished (request);
492 GOTO(out_lock_cn_cb, err);
495 LASSERT(fid_is_sane(&sbi->ll_root_fid));
496 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, 0), &lmd);
497 md_free_lustre_md(sbi->ll_md_exp, &lmd);
498 ptlrpc_req_finished(request);
500 if (root == NULL || IS_ERR(root)) {
502 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
503 #ifdef CONFIG_FS_POSIX_ACL
505 posix_acl_release(lmd.posix_acl);
506 lmd.posix_acl = NULL;
509 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
511 CERROR("lustre_lite: bad iget4 for root\n");
515 err = ll_close_thread_start(&sbi->ll_lcq);
517 CERROR("cannot start close thread: rc %d\n", err);
521 #ifdef CONFIG_FS_POSIX_ACL
522 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
523 rct_init(&sbi->ll_rct);
524 et_init(&sbi->ll_et);
528 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
529 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
530 KEY_CHECKSUM, sizeof(checksum), &checksum,
534 sb->s_root = d_alloc_root(root);
535 sb->s_root->d_op = &ll_d_root_ops;
537 sbi->ll_sdev_orig = sb->s_dev;
539 /* We set sb->s_dev equal on all lustre clients in order to support
540 * NFS export clustering. NFSD requires that the FSID be the same
542 /* s_dev is also used in lt_compare() to compare two fs, but that is
543 * only a node-local comparison. */
544 uuid = obd_get_uuid(sbi->ll_md_exp);
546 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
559 obd_fid_fini(sbi->ll_dt_exp);
561 obd_disconnect(sbi->ll_dt_exp);
562 sbi->ll_dt_exp = NULL;
564 obd_fid_fini(sbi->ll_md_exp);
566 obd_disconnect(sbi->ll_md_exp);
567 sbi->ll_md_exp = NULL;
573 lprocfs_unregister_mountpoint(sbi);
577 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
581 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
583 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
584 KEY_MAX_EASIZE, &size, lmmsize, NULL);
586 CERROR("Get max mdsize error rc %d \n", rc);
591 void ll_dump_inode(struct inode *inode)
593 struct list_head *tmp;
594 int dentry_count = 0;
596 LASSERT(inode != NULL);
598 list_for_each(tmp, &inode->i_dentry)
601 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
602 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
603 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
606 void lustre_dump_dentry(struct dentry *dentry, int recur)
608 struct list_head *tmp;
611 LASSERT(dentry != NULL);
613 list_for_each(tmp, &dentry->d_subdirs)
616 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
617 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
618 dentry->d_name.len, dentry->d_name.name,
619 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
620 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
621 dentry->d_flags, dentry->d_fsdata, subdirs);
622 if (dentry->d_inode != NULL)
623 ll_dump_inode(dentry->d_inode);
628 list_for_each(tmp, &dentry->d_subdirs) {
629 struct dentry *d = list_entry(tmp, struct dentry, d_child);
630 lustre_dump_dentry(d, recur - 1);
634 void client_common_put_super(struct super_block *sb)
636 struct ll_sb_info *sbi = ll_s2sbi(sb);
639 #ifdef CONFIG_FS_POSIX_ACL
640 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
641 et_fini(&sbi->ll_et);
642 rct_fini(&sbi->ll_rct);
646 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
648 ll_close_thread_shutdown(sbi->ll_lcq);
652 cfs_list_del(&sbi->ll_conn_chain);
654 obd_fid_fini(sbi->ll_dt_exp);
655 obd_disconnect(sbi->ll_dt_exp);
656 sbi->ll_dt_exp = NULL;
658 lprocfs_unregister_mountpoint(sbi);
660 obd_fid_fini(sbi->ll_md_exp);
661 obd_disconnect(sbi->ll_md_exp);
662 sbi->ll_md_exp = NULL;
667 void ll_kill_super(struct super_block *sb)
669 struct ll_sb_info *sbi;
674 if (!(sb->s_flags & MS_ACTIVE))
678 /* we need restore s_dev from changed for clustred NFS before put_super
679 * because new kernels have cached s_dev and change sb->s_dev in
680 * put_super not affected real removing devices */
682 sb->s_dev = sbi->ll_sdev_orig;
686 char *ll_read_opt(const char *opt, char *data)
692 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
693 if (strncmp(opt, data, strlen(opt)))
695 if ((value = strchr(data, '=')) == NULL)
699 OBD_ALLOC(retval, strlen(value) + 1);
701 CERROR("out of memory!\n");
705 memcpy(retval, value, strlen(value)+1);
706 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
710 static inline int ll_set_opt(const char *opt, char *data, int fl)
712 if (strncmp(opt, data, strlen(opt)) != 0)
718 /* non-client-specific mount options are parsed in lmd_parse */
719 static int ll_options(char *options, int *flags)
722 char *s1 = options, *s2;
728 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
731 CDEBUG(D_SUPER, "next opt=%s\n", s1);
732 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
737 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
742 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
747 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
752 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
757 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
762 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
763 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
765 /* Ignore deprecated mount option. The client will
766 * always try to mount with ACL support, whether this
767 * is used depends on whether server supports it. */
768 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
769 "mount option 'acl'.\n");
772 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
774 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
775 "mount option 'noacl'.\n");
779 #warning "{no}acl options have been deprecated since 1.8, please remove them"
781 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
787 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
792 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
797 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
802 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
807 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
812 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
817 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
822 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
828 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
834 s2 = strchr(s1, ',');
842 void ll_lli_init(struct ll_inode_info *lli)
844 lli->lli_inode_magic = LLI_INODE_MAGIC;
846 lli->lli_ioepoch = 0;
847 lli->lli_maxbytes = MAX_LFS_FILESIZE;
848 cfs_spin_lock_init(&lli->lli_lock);
849 lli->lli_posix_acl = NULL;
850 lli->lli_remote_perms = NULL;
851 cfs_mutex_init(&lli->lli_rmtperm_mutex);
852 /* Do not set lli_fid, it has been initialized already. */
853 fid_zero(&lli->lli_pfid);
854 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
855 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
856 cfs_atomic_set(&lli->lli_open_count, 0);
857 lli->lli_mds_capa = NULL;
858 lli->lli_rmtperm_time = 0;
859 lli->lli_pending_och = NULL;
860 lli->lli_mds_read_och = NULL;
861 lli->lli_mds_write_och = NULL;
862 lli->lli_mds_exec_och = NULL;
863 lli->lli_open_fd_read_count = 0;
864 lli->lli_open_fd_write_count = 0;
865 lli->lli_open_fd_exec_count = 0;
866 cfs_mutex_init(&lli->lli_och_mutex);
867 cfs_spin_lock_init(&lli->lli_agl_lock);
869 lli->lli_clob = NULL;
871 LASSERT(lli->lli_vfs_inode.i_mode != 0);
872 if (S_ISDIR(lli->lli_vfs_inode.i_mode)) {
873 cfs_mutex_init(&lli->lli_readdir_mutex);
874 lli->lli_opendir_key = NULL;
877 lli->lli_def_acl = NULL;
878 cfs_spin_lock_init(&lli->lli_sa_lock);
879 lli->lli_opendir_pid = 0;
881 cfs_sema_init(&lli->lli_size_sem, 1);
882 lli->lli_size_sem_owner = NULL;
883 lli->lli_symlink_name = NULL;
884 cfs_init_rwsem(&lli->lli_trunc_sem);
885 cfs_mutex_init(&lli->lli_write_mutex);
886 lli->lli_async_rc = 0;
887 lli->lli_write_rc = 0;
888 cfs_init_rwsem(&lli->lli_glimpse_sem);
889 lli->lli_glimpse_time = 0;
890 CFS_INIT_LIST_HEAD(&lli->lli_agl_list);
891 lli->lli_agl_index = 0;
895 static inline int ll_bdi_register(struct backing_dev_info *bdi)
897 #ifdef HAVE_BDI_REGISTER
898 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
901 bdi->name = "lustre";
903 return bdi_register(bdi, NULL, "lustre-%d",
904 atomic_inc_return(&ll_bdi_num));
910 int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
912 struct lustre_profile *lprof = NULL;
913 struct lustre_sb_info *lsi = s2lsi(sb);
914 struct ll_sb_info *sbi;
915 char *dt = NULL, *md = NULL;
916 char *profilenm = get_profile_name(sb);
917 struct config_llog_instance *cfg;
918 /* %p for void* in printf needs 16+2 characters: 0xffffffffffffffff */
919 const int instlen = sizeof(cfg->cfg_instance) * 2 + 2;
923 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
931 /* client additional sb info */
932 lsi->lsi_llsbi = sbi = ll_init_sbi();
934 cfs_module_put(THIS_MODULE);
939 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
943 err = ll_bdi_init(&lsi->lsi_bdi);
946 lsi->lsi_flags |= LSI_BDI_INITIALIZED;
947 lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
948 err = ll_bdi_register(&lsi->lsi_bdi);
953 sb->s_bdi = &lsi->lsi_bdi;
956 /* Generate a string unique to this super, in case some joker tries
957 to mount the same fs at two mount points.
958 Use the address of the super itself.*/
959 cfg->cfg_instance = sb;
960 cfg->cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
962 /* set up client obds */
963 err = lustre_process_log(sb, profilenm, cfg);
965 CERROR("Unable to process log: %d\n", err);
969 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
970 lprof = class_get_profile(profilenm);
972 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
973 " read from the MGS. Does that filesystem "
974 "exist?\n", profilenm);
975 GOTO(out_free, err = -EINVAL);
977 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
978 lprof->lp_md, lprof->lp_dt);
980 OBD_ALLOC(dt, strlen(lprof->lp_dt) + instlen + 2);
982 GOTO(out_free, err = -ENOMEM);
983 sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
985 OBD_ALLOC(md, strlen(lprof->lp_md) + instlen + 2);
987 GOTO(out_free, err = -ENOMEM);
988 sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance);
990 /* connections, registrations, sb setup */
991 err = client_common_fill_super(sb, md, dt, mnt);
995 OBD_FREE(md, strlen(lprof->lp_md) + instlen + 2);
997 OBD_FREE(dt, strlen(lprof->lp_dt) + instlen + 2);
1001 LCONSOLE_WARN("Client %s has started\n", profilenm);
1005 } /* ll_fill_super */
1008 void lu_context_keys_dump(void);
1010 void ll_put_super(struct super_block *sb)
1012 struct config_llog_instance cfg;
1013 struct obd_device *obd;
1014 struct lustre_sb_info *lsi = s2lsi(sb);
1015 struct ll_sb_info *sbi = ll_s2sbi(sb);
1016 char *profilenm = get_profile_name(sb);
1017 int force = 1, next;
1020 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
1022 ll_print_capa_stat(sbi);
1024 cfg.cfg_instance = sb;
1025 lustre_end_log(sb, profilenm, &cfg);
1027 if (sbi->ll_md_exp) {
1028 obd = class_exp2obd(sbi->ll_md_exp);
1030 force = obd->obd_force;
1033 /* We need to set force before the lov_disconnect in
1034 lustre_common_put_super, since l_d cleans up osc's as well. */
1037 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
1039 obd->obd_force = force;
1044 /* Only if client_common_fill_super succeeded */
1045 client_common_put_super(sb);
1049 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
1050 class_manual_cleanup(obd);
1054 class_del_profile(profilenm);
1056 if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
1057 ll_bdi_destroy(&lsi->lsi_bdi);
1058 lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
1062 lsi->lsi_llsbi = NULL;
1064 lustre_common_put_super(sb);
1066 cl_env_cache_purge(~0);
1068 LCONSOLE_WARN("client %p umount complete\n", cfg.cfg_instance);
1070 cfs_module_put(THIS_MODULE);
1073 } /* client_put_super */
1075 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1077 struct inode *inode = NULL;
1078 /* NOTE: we depend on atomic igrab() -bzzz */
1079 lock_res_and_lock(lock);
1080 if (lock->l_ast_data) {
1081 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1082 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1083 inode = igrab(lock->l_ast_data);
1085 inode = lock->l_ast_data;
1086 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1087 D_WARNING, lock, "l_ast_data %p is "
1088 "bogus: magic %08x", lock->l_ast_data,
1089 lli->lli_inode_magic);
1093 unlock_res_and_lock(lock);
1097 static int null_if_equal(struct ldlm_lock *lock, void *data)
1099 if (data == lock->l_ast_data) {
1100 lock->l_ast_data = NULL;
1102 if (lock->l_req_mode != lock->l_granted_mode)
1103 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1106 return LDLM_ITER_CONTINUE;
1109 void ll_clear_inode(struct inode *inode)
1111 struct ll_inode_info *lli = ll_i2info(inode);
1112 struct ll_sb_info *sbi = ll_i2sbi(inode);
1115 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1116 inode->i_generation, inode);
1118 if (S_ISDIR(inode->i_mode)) {
1119 /* these should have been cleared in ll_file_release */
1120 LASSERT(lli->lli_opendir_key == NULL);
1121 LASSERT(lli->lli_sai == NULL);
1122 LASSERT(lli->lli_opendir_pid == 0);
1125 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1126 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1127 null_if_equal, inode);
1129 LASSERT(!lli->lli_open_fd_write_count);
1130 LASSERT(!lli->lli_open_fd_read_count);
1131 LASSERT(!lli->lli_open_fd_exec_count);
1133 if (lli->lli_mds_write_och)
1134 ll_md_real_close(inode, FMODE_WRITE);
1135 if (lli->lli_mds_exec_och)
1136 ll_md_real_close(inode, FMODE_EXEC);
1137 if (lli->lli_mds_read_och)
1138 ll_md_real_close(inode, FMODE_READ);
1140 if (S_ISLNK(inode->i_mode) && lli->lli_symlink_name) {
1141 OBD_FREE(lli->lli_symlink_name,
1142 strlen(lli->lli_symlink_name) + 1);
1143 lli->lli_symlink_name = NULL;
1146 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1147 LASSERT(lli->lli_posix_acl == NULL);
1148 if (lli->lli_remote_perms) {
1149 free_rmtperm_hash(lli->lli_remote_perms);
1150 lli->lli_remote_perms = NULL;
1153 #ifdef CONFIG_FS_POSIX_ACL
1154 else if (lli->lli_posix_acl) {
1155 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1156 LASSERT(lli->lli_remote_perms == NULL);
1157 posix_acl_release(lli->lli_posix_acl);
1158 lli->lli_posix_acl = NULL;
1161 lli->lli_inode_magic = LLI_INODE_DEAD;
1163 ll_clear_inode_capas(inode);
1164 if (!S_ISDIR(inode->i_mode))
1165 LASSERT(cfs_list_empty(&lli->lli_agl_list));
1168 * XXX This has to be done before lsm is freed below, because
1169 * cl_object still uses inode lsm.
1171 cl_inode_fini(inode);
1174 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1175 lli->lli_smd = NULL;
1182 int ll_md_setattr(struct dentry *dentry, struct md_op_data *op_data,
1183 struct md_open_data **mod)
1185 struct lustre_md md;
1186 struct inode *inode = dentry->d_inode;
1187 struct ll_sb_info *sbi = ll_i2sbi(inode);
1188 struct ptlrpc_request *request = NULL;
1192 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1193 LUSTRE_OPC_ANY, NULL);
1194 if (IS_ERR(op_data))
1195 RETURN(PTR_ERR(op_data));
1197 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1200 ptlrpc_req_finished(request);
1201 if (rc == -ENOENT) {
1203 /* Unlinked special device node? Or just a race?
1204 * Pretend we done everything. */
1205 if (!S_ISREG(inode->i_mode) &&
1206 !S_ISDIR(inode->i_mode)) {
1207 ia_valid = op_data->op_attr.ia_valid;
1208 op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS;
1209 rc = simple_setattr(dentry, &op_data->op_attr);
1210 op_data->op_attr.ia_valid = ia_valid;
1212 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1213 CERROR("md_setattr fails: rc = %d\n", rc);
1218 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1219 sbi->ll_md_exp, &md);
1221 ptlrpc_req_finished(request);
1225 /* We want to adjust timestamps.
1226 * If there is at least some data in file, we cleared ATTR_SIZE
1227 * to avoid update size, otherwise it is important to do.(SOM case)
1229 ia_valid = op_data->op_attr.ia_valid;
1230 /* Since we set ATTR_*_SET flags above, and already done permission
1231 * check, So don't let inode_change_ok() check it again. */
1232 op_data->op_attr.ia_valid &= ~TIMES_SET_FLAGS;
1233 rc = simple_setattr(dentry, &op_data->op_attr);
1234 op_data->op_attr.ia_valid = ia_valid;
1236 /* Extract epoch data if obtained. */
1237 op_data->op_handle = md.body->handle;
1238 op_data->op_ioepoch = md.body->ioepoch;
1240 ll_update_inode(inode, &md);
1241 ptlrpc_req_finished(request);
1246 /* Close IO epoch and send Size-on-MDS attribute update. */
1247 static int ll_setattr_done_writing(struct inode *inode,
1248 struct md_op_data *op_data,
1249 struct md_open_data *mod)
1251 struct ll_inode_info *lli = ll_i2info(inode);
1255 LASSERT(op_data != NULL);
1256 if (!S_ISREG(inode->i_mode))
1259 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1260 op_data->op_ioepoch, PFID(&lli->lli_fid));
1262 op_data->op_flags = MF_EPOCH_CLOSE;
1263 ll_done_writing_attr(inode, op_data);
1264 ll_pack_inode2opdata(inode, op_data, NULL);
1266 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1267 if (rc == -EAGAIN) {
1268 /* MDS has instructed us to obtain Size-on-MDS attribute
1269 * from OSTs and send setattr to back to MDS. */
1270 rc = ll_som_update(inode, op_data);
1272 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1278 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1280 struct obd_capa *capa;
1283 if (attr->ia_valid & ATTR_SIZE)
1284 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1286 capa = ll_mdscapa_get(inode);
1288 rc = cl_setattr_ost(inode, attr, capa);
1290 if (attr->ia_valid & ATTR_SIZE)
1291 ll_truncate_free_capa(capa);
1298 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1299 * object(s) determine the file size and mtime. Otherwise, the MDS will
1300 * keep these values until such a time that objects are allocated for it.
1301 * We do the MDS operations first, as it is checking permissions for us.
1302 * We don't to the MDS RPC if there is nothing that we want to store there,
1303 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1304 * going to do an RPC anyways.
1306 * If we are doing a truncate, we will send the mtime and ctime updates
1307 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1308 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1311 int ll_setattr_raw(struct dentry *dentry, struct iattr *attr)
1313 struct inode *inode = dentry->d_inode;
1314 struct ll_inode_info *lli = ll_i2info(inode);
1315 struct lov_stripe_md *lsm = lli->lli_smd;
1316 struct md_op_data *op_data = NULL;
1317 struct md_open_data *mod = NULL;
1318 int ia_valid = attr->ia_valid;
1319 int rc = 0, rc1 = 0;
1322 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1325 if (ia_valid & ATTR_SIZE) {
1326 /* Check new size against VFS/VM file size limit and rlimit */
1327 rc = inode_newsize_ok(inode, attr->ia_size);
1331 /* The maximum Lustre file size is variable, based on the
1332 * OST maximum object size and number of stripes. This
1333 * needs another check in addition to the VFS check above. */
1334 if (attr->ia_size > ll_file_maxbytes(inode)) {
1335 CDEBUG(D_INODE,"file "DFID" too large %llu > "LPU64"\n",
1336 PFID(&lli->lli_fid), attr->ia_size,
1337 ll_file_maxbytes(inode));
1341 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1344 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1345 if (ia_valid & TIMES_SET_FLAGS) {
1346 if (cfs_curproc_fsuid() != inode->i_uid &&
1347 !cfs_capable(CFS_CAP_FOWNER))
1351 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1352 if (attr->ia_valid & ATTR_CTIME) {
1353 attr->ia_ctime = CFS_CURRENT_TIME;
1354 attr->ia_valid |= ATTR_CTIME_SET;
1356 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1357 attr->ia_atime = CFS_CURRENT_TIME;
1358 attr->ia_valid |= ATTR_ATIME_SET;
1360 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1361 attr->ia_mtime = CFS_CURRENT_TIME;
1362 attr->ia_valid |= ATTR_MTIME_SET;
1365 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1366 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1367 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1368 cfs_time_current_sec());
1370 /* NB: ATTR_SIZE will only be set after this point if the size
1371 * resides on the MDS, ie, this file has no objects. */
1373 attr->ia_valid &= ~ATTR_SIZE;
1375 /* We always do an MDS RPC, even if we're only changing the size;
1376 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1378 OBD_ALLOC_PTR(op_data);
1379 if (op_data == NULL)
1382 if (!S_ISDIR(inode->i_mode)) {
1383 if (ia_valid & ATTR_SIZE)
1384 UP_WRITE_I_ALLOC_SEM(inode);
1385 UNLOCK_INODE_MUTEX(inode);
1386 cfs_down_write(&lli->lli_trunc_sem);
1387 LOCK_INODE_MUTEX(inode);
1388 if (ia_valid & ATTR_SIZE)
1389 DOWN_WRITE_I_ALLOC_SEM(inode);
1392 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1394 /* Open epoch for truncate. */
1395 if (exp_connect_som(ll_i2mdexp(inode)) &&
1396 (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1397 op_data->op_flags = MF_EPOCH_OPEN;
1399 rc = ll_md_setattr(dentry, op_data, &mod);
1403 ll_ioepoch_open(lli, op_data->op_ioepoch);
1404 if (!lsm || !S_ISREG(inode->i_mode)) {
1405 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1409 if (ia_valid & ATTR_SIZE)
1410 attr->ia_valid |= ATTR_SIZE;
1411 if (ia_valid & (ATTR_SIZE |
1412 ATTR_ATIME | ATTR_ATIME_SET |
1413 ATTR_MTIME | ATTR_MTIME_SET))
1414 /* For truncate and utimes sending attributes to OSTs, setting
1415 * mtime/atime to the past will be performed under PW [0:EOF]
1416 * extent lock (new_size:EOF for truncate). It may seem
1417 * excessive to send mtime/atime updates to OSTs when not
1418 * setting times to past, but it is necessary due to possible
1419 * time de-synchronization between MDT inode and OST objects */
1420 rc = ll_setattr_ost(inode, attr);
1424 if (op_data->op_ioepoch) {
1425 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1429 ll_finish_md_op_data(op_data);
1431 if (!S_ISDIR(inode->i_mode))
1432 cfs_up_write(&lli->lli_trunc_sem);
1434 ll_stats_ops_tally(ll_i2sbi(inode), (ia_valid & ATTR_SIZE) ?
1435 LPROC_LL_TRUNC : LPROC_LL_SETATTR, 1);
1440 int ll_setattr(struct dentry *de, struct iattr *attr)
1442 int mode = de->d_inode->i_mode;
1444 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1445 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1446 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1448 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1449 (ATTR_SIZE|ATTR_MODE)) &&
1450 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1451 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1452 !(attr->ia_mode & S_ISGID))))
1453 attr->ia_valid |= ATTR_FORCE;
1455 if ((mode & S_ISUID) &&
1456 !(attr->ia_mode & S_ISUID) &&
1457 !(attr->ia_valid & ATTR_KILL_SUID))
1458 attr->ia_valid |= ATTR_KILL_SUID;
1460 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1461 !(attr->ia_mode & S_ISGID) &&
1462 !(attr->ia_valid & ATTR_KILL_SGID))
1463 attr->ia_valid |= ATTR_KILL_SGID;
1465 return ll_setattr_raw(de, attr);
1468 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1469 __u64 max_age, __u32 flags)
1471 struct ll_sb_info *sbi = ll_s2sbi(sb);
1472 struct obd_statfs obd_osfs;
1476 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1478 CERROR("md_statfs fails: rc = %d\n", rc);
1482 osfs->os_type = sb->s_magic;
1484 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1485 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1487 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1488 flags |= OBD_STATFS_NODELAY;
1490 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1491 &obd_osfs, max_age, flags);
1493 CERROR("obd_statfs fails: rc = %d\n", rc);
1497 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1498 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1501 osfs->os_bsize = obd_osfs.os_bsize;
1502 osfs->os_blocks = obd_osfs.os_blocks;
1503 osfs->os_bfree = obd_osfs.os_bfree;
1504 osfs->os_bavail = obd_osfs.os_bavail;
1506 /* If we don't have as many objects free on the OST as inodes
1507 * on the MDS, we reduce the total number of inodes to
1508 * compensate, so that the "inodes in use" number is correct.
1510 if (obd_osfs.os_ffree < osfs->os_ffree) {
1511 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1513 osfs->os_ffree = obd_osfs.os_ffree;
1518 #ifndef HAVE_STATFS_DENTRY_PARAM
1519 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1522 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1524 struct super_block *sb = de->d_sb;
1526 struct obd_statfs osfs;
1529 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1530 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1532 /* Some amount of caching on the client is allowed */
1533 rc = ll_statfs_internal(sb, &osfs,
1534 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1539 statfs_unpack(sfs, &osfs);
1541 /* We need to downshift for all 32-bit kernels, because we can't
1542 * tell if the kernel is being called via sys_statfs64() or not.
1543 * Stop before overflowing f_bsize - in which case it is better
1544 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1545 if (sizeof(long) < 8) {
1546 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1549 osfs.os_blocks >>= 1;
1550 osfs.os_bfree >>= 1;
1551 osfs.os_bavail >>= 1;
1555 sfs->f_blocks = osfs.os_blocks;
1556 sfs->f_bfree = osfs.os_bfree;
1557 sfs->f_bavail = osfs.os_bavail;
1562 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1564 struct ll_inode_info *lli;
1565 struct lov_stripe_md *lsm;
1567 LASSERT(!S_ISDIR(inode->i_mode));
1569 lli = ll_i2info(inode);
1570 LASSERT(lli->lli_size_sem_owner != current);
1571 cfs_down(&lli->lli_size_sem);
1572 LASSERT(lli->lli_size_sem_owner == NULL);
1573 lli->lli_size_sem_owner = current;
1575 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1578 lov_stripe_lock(lsm);
1581 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1583 struct ll_inode_info *lli;
1584 struct lov_stripe_md *lsm;
1586 lli = ll_i2info(inode);
1588 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1591 lov_stripe_unlock(lsm);
1592 LASSERT(lli->lli_size_sem_owner == current);
1593 lli->lli_size_sem_owner = NULL;
1594 cfs_up(&lli->lli_size_sem);
1597 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1599 struct ll_inode_info *lli = ll_i2info(inode);
1600 struct mdt_body *body = md->body;
1601 struct lov_stripe_md *lsm = md->lsm;
1602 struct ll_sb_info *sbi = ll_i2sbi(inode);
1604 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1606 LASSERT(S_ISREG(inode->i_mode));
1608 cfs_mutex_lock(&lli->lli_och_mutex);
1609 if (lli->lli_smd == NULL) {
1610 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1611 lsm->lsm_magic != LOV_MAGIC_V3) {
1612 dump_lsm(D_ERROR, lsm);
1615 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1616 lsm, inode->i_ino, inode->i_generation, inode);
1617 /* cl_file_inode_init must go before lli_smd or a race
1618 * is possible where client thinks the file has stripes,
1619 * but lov raid0 is not setup yet and parallel e.g.
1620 * glimpse would try to use uninitialized lov */
1621 cl_file_inode_init(inode, md);
1622 cfs_spin_lock(&lli->lli_lock);
1624 cfs_spin_unlock(&lli->lli_lock);
1625 cfs_mutex_unlock(&lli->lli_och_mutex);
1626 lli->lli_maxbytes = lsm->lsm_maxbytes;
1627 if (lli->lli_maxbytes > MAX_LFS_FILESIZE)
1628 lli->lli_maxbytes = MAX_LFS_FILESIZE;
1630 cfs_mutex_unlock(&lli->lli_och_mutex);
1631 LASSERT(lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1632 lli->lli_smd->lsm_stripe_count ==
1633 lsm->lsm_stripe_count);
1634 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1635 CERROR("lsm mismatch for inode %ld\n",
1637 CERROR("lli_smd:\n");
1638 dump_lsm(D_ERROR, lli->lli_smd);
1640 dump_lsm(D_ERROR, 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 cfs_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 cfs_spin_unlock(&lli->lli_lock);
1661 inode->i_ino = cl_fid_build_ino(&body->fid1, 0);
1662 inode->i_generation = cl_fid_build_gen(&body->fid1);
1664 if (body->valid & OBD_MD_FLATIME) {
1665 if (body->atime > LTIME_S(inode->i_atime))
1666 LTIME_S(inode->i_atime) = body->atime;
1667 lli->lli_lvb.lvb_atime = body->atime;
1669 if (body->valid & OBD_MD_FLMTIME) {
1670 if (body->mtime > LTIME_S(inode->i_mtime)) {
1671 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1672 "to "LPU64"\n", inode->i_ino,
1673 LTIME_S(inode->i_mtime), body->mtime);
1674 LTIME_S(inode->i_mtime) = body->mtime;
1676 lli->lli_lvb.lvb_mtime = body->mtime;
1678 if (body->valid & OBD_MD_FLCTIME) {
1679 if (body->ctime > LTIME_S(inode->i_ctime))
1680 LTIME_S(inode->i_ctime) = body->ctime;
1681 lli->lli_lvb.lvb_ctime = body->ctime;
1683 if (body->valid & OBD_MD_FLMODE)
1684 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1685 if (body->valid & OBD_MD_FLTYPE)
1686 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1687 LASSERT(inode->i_mode != 0);
1688 if (S_ISREG(inode->i_mode)) {
1689 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1691 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1693 #ifdef HAVE_INODE_BLKSIZE
1694 inode->i_blksize = 1<<inode->i_blkbits;
1696 if (body->valid & OBD_MD_FLUID)
1697 inode->i_uid = body->uid;
1698 if (body->valid & OBD_MD_FLGID)
1699 inode->i_gid = body->gid;
1700 if (body->valid & OBD_MD_FLFLAGS)
1701 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1702 if (body->valid & OBD_MD_FLNLINK)
1703 inode->i_nlink = body->nlink;
1704 if (body->valid & OBD_MD_FLRDEV)
1705 inode->i_rdev = old_decode_dev(body->rdev);
1707 if (body->valid & OBD_MD_FLID) {
1708 /* FID shouldn't be changed! */
1709 if (fid_is_sane(&lli->lli_fid)) {
1710 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1711 "Trying to change FID "DFID
1712 " to the "DFID", inode %lu/%u(%p)\n",
1713 PFID(&lli->lli_fid), PFID(&body->fid1),
1714 inode->i_ino, inode->i_generation, inode);
1716 lli->lli_fid = body->fid1;
1719 LASSERT(fid_seq(&lli->lli_fid) != 0);
1721 if (body->valid & OBD_MD_FLSIZE) {
1722 if (exp_connect_som(ll_i2mdexp(inode)) &&
1723 S_ISREG(inode->i_mode) && lli->lli_smd) {
1724 struct lustre_handle lockh;
1727 /* As it is possible a blocking ast has been processed
1728 * by this time, we need to check there is an UPDATE
1729 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1731 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1734 if (lli->lli_flags & (LLIF_DONE_WRITING |
1735 LLIF_EPOCH_PENDING |
1737 CERROR("ino %lu flags %u still has "
1738 "size authority! do not trust "
1739 "the size got from MDS\n",
1740 inode->i_ino, lli->lli_flags);
1742 /* Use old size assignment to avoid
1743 * deadlock bz14138 & bz14326 */
1744 i_size_write(inode, body->size);
1745 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1747 ldlm_lock_decref(&lockh, mode);
1750 /* Use old size assignment to avoid
1751 * deadlock bz14138 & bz14326 */
1752 i_size_write(inode, body->size);
1754 CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
1755 inode->i_ino, (unsigned long long)body->size);
1758 if (body->valid & OBD_MD_FLBLOCKS)
1759 inode->i_blocks = body->blocks;
1762 if (body->valid & OBD_MD_FLMDSCAPA) {
1763 LASSERT(md->mds_capa);
1764 ll_add_capa(inode, md->mds_capa);
1766 if (body->valid & OBD_MD_FLOSSCAPA) {
1767 LASSERT(md->oss_capa);
1768 ll_add_capa(inode, md->oss_capa);
1772 void ll_read_inode2(struct inode *inode, void *opaque)
1774 struct lustre_md *md = opaque;
1775 struct ll_inode_info *lli = ll_i2info(inode);
1778 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n",
1779 PFID(&lli->lli_fid), inode);
1781 LASSERT(!lli->lli_smd);
1783 /* Core attributes from the MDS first. This is a new inode, and
1784 * the VFS doesn't zero times in the core inode so we have to do
1785 * it ourselves. They will be overwritten by either MDS or OST
1786 * attributes - we just need to make sure they aren't newer. */
1787 LTIME_S(inode->i_mtime) = 0;
1788 LTIME_S(inode->i_atime) = 0;
1789 LTIME_S(inode->i_ctime) = 0;
1791 ll_update_inode(inode, md);
1793 /* OIDEBUG(inode); */
1795 /* initializing backing dev info. */
1796 inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
1799 if (S_ISREG(inode->i_mode)) {
1800 struct ll_sb_info *sbi = ll_i2sbi(inode);
1801 inode->i_op = &ll_file_inode_operations;
1802 inode->i_fop = sbi->ll_fop;
1803 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
1805 } else if (S_ISDIR(inode->i_mode)) {
1806 inode->i_op = &ll_dir_inode_operations;
1807 inode->i_fop = &ll_dir_operations;
1808 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_dir_aops;
1810 } else if (S_ISLNK(inode->i_mode)) {
1811 inode->i_op = &ll_fast_symlink_inode_operations;
1814 inode->i_op = &ll_special_inode_operations;
1816 init_special_inode(inode, inode->i_mode,
1817 kdev_t_to_nr(inode->i_rdev));
1823 void ll_delete_inode(struct inode *inode)
1825 struct ll_sb_info *sbi = ll_i2sbi(inode);
1829 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1831 CERROR("fid_delete() failed, rc %d\n", rc);
1833 truncate_inode_pages(&inode->i_data, 0);
1835 /* Workaround for LU-118 */
1836 if (inode->i_data.nrpages) {
1837 TREE_READ_LOCK_IRQ(&inode->i_data);
1838 TREE_READ_UNLOCK_IRQ(&inode->i_data);
1839 LASSERTF(inode->i_data.nrpages == 0,
1840 "inode=%lu/%u(%p) nrpages=%lu, see "
1841 "http://jira.whamcloud.com/browse/LU-118\n",
1842 inode->i_ino, inode->i_generation, inode,
1843 inode->i_data.nrpages);
1845 /* Workaround end */
1847 #ifdef HAVE_SBOPS_EVICT_INODE
1848 ll_clear_inode(inode);
1849 end_writeback(inode);
1857 int ll_iocontrol(struct inode *inode, struct file *file,
1858 unsigned int cmd, unsigned long arg)
1860 struct ll_sb_info *sbi = ll_i2sbi(inode);
1861 struct ptlrpc_request *req = NULL;
1866 case FSFILT_IOC_GETFLAGS: {
1867 struct mdt_body *body;
1868 struct md_op_data *op_data;
1870 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
1871 0, 0, LUSTRE_OPC_ANY,
1873 if (IS_ERR(op_data))
1874 RETURN(PTR_ERR(op_data));
1876 op_data->op_valid = OBD_MD_FLFLAGS;
1877 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
1878 ll_finish_md_op_data(op_data);
1880 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1884 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1886 flags = body->flags;
1888 ptlrpc_req_finished(req);
1890 RETURN(put_user(flags, (int *)arg));
1892 case FSFILT_IOC_SETFLAGS: {
1893 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1894 struct obd_info oinfo = { { { 0 } } };
1895 struct md_op_data *op_data;
1897 if (get_user(flags, (int *)arg))
1901 OBDO_ALLOC(oinfo.oi_oa);
1905 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1906 LUSTRE_OPC_ANY, NULL);
1907 if (IS_ERR(op_data))
1908 RETURN(PTR_ERR(op_data));
1910 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1911 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1912 rc = md_setattr(sbi->ll_md_exp, op_data,
1913 NULL, 0, NULL, 0, &req, NULL);
1914 ll_finish_md_op_data(op_data);
1915 ptlrpc_req_finished(req);
1917 OBDO_FREE(oinfo.oi_oa);
1922 OBDO_FREE(oinfo.oi_oa);
1923 GOTO(update_cache, rc);
1926 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1927 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
1928 oinfo.oi_oa->o_flags = flags;
1929 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1931 oinfo.oi_capa = ll_mdscapa_get(inode);
1932 obdo_from_inode(oinfo.oi_oa, inode,
1933 &ll_i2info(inode)->lli_fid, 0);
1934 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1935 capa_put(oinfo.oi_capa);
1936 OBDO_FREE(oinfo.oi_oa);
1938 if (rc != -EPERM && rc != -EACCES)
1939 CERROR("osc_setattr_async fails: rc = %d\n",rc);
1945 inode->i_flags = ll_ext_to_inode_flags(flags);
1955 int ll_flush_ctx(struct inode *inode)
1957 struct ll_sb_info *sbi = ll_i2sbi(inode);
1959 CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
1961 obd_set_info_async(sbi->ll_md_exp,
1962 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1964 obd_set_info_async(sbi->ll_dt_exp,
1965 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1970 /* umount -f client means force down, don't save state */
1971 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1972 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1974 struct super_block *sb = vfsmnt->mnt_sb;
1976 void ll_umount_begin(struct super_block *sb)
1979 struct lustre_sb_info *lsi = s2lsi(sb);
1980 struct ll_sb_info *sbi = ll_s2sbi(sb);
1981 struct obd_device *obd;
1982 struct obd_ioctl_data *ioc_data;
1985 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1986 if (!(flags & MNT_FORCE)) {
1992 /* Tell the MGC we got umount -f */
1993 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1995 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1996 sb->s_count, atomic_read(&sb->s_active));
1998 obd = class_exp2obd(sbi->ll_md_exp);
2000 CERROR("Invalid MDC connection handle "LPX64"\n",
2001 sbi->ll_md_exp->exp_handle.h_cookie);
2007 obd = class_exp2obd(sbi->ll_dt_exp);
2009 CERROR("Invalid LOV connection handle "LPX64"\n",
2010 sbi->ll_dt_exp->exp_handle.h_cookie);
2016 OBD_ALLOC_PTR(ioc_data);
2018 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
2019 sizeof ioc_data, ioc_data, NULL);
2021 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
2022 sizeof ioc_data, ioc_data, NULL);
2024 OBD_FREE_PTR(ioc_data);
2028 /* Really, we'd like to wait until there are no requests outstanding,
2029 * and then continue. For now, we just invalidate the requests,
2030 * schedule() and sleep one second if needed, and hope.
2033 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
2034 if (atomic_read(&vfsmnt->mnt_count) > 2) {
2035 cfs_schedule_timeout_and_set_state(CFS_TASK_INTERRUPTIBLE,
2036 cfs_time_seconds(1));
2037 if (atomic_read(&vfsmnt->mnt_count) > 2)
2038 LCONSOLE_WARN("Mount still busy with %d refs! You "
2039 "may try to umount it a bit later\n",
2040 atomic_read(&vfsmnt->mnt_count));
2047 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
2049 struct ll_sb_info *sbi = ll_s2sbi(sb);
2053 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
2054 read_only = *flags & MS_RDONLY;
2055 err = obd_set_info_async(sbi->ll_md_exp,
2056 sizeof(KEY_READ_ONLY),
2057 KEY_READ_ONLY, sizeof(read_only),
2060 CERROR("Failed to change the read-only flag during "
2061 "remount: %d\n", err);
2066 sb->s_flags |= MS_RDONLY;
2068 sb->s_flags &= ~MS_RDONLY;
2073 int ll_prep_inode(struct inode **inode,
2074 struct ptlrpc_request *req,
2075 struct super_block *sb)
2077 struct ll_sb_info *sbi = NULL;
2078 struct lustre_md md;
2082 LASSERT(*inode || sb);
2083 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
2084 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
2085 sbi->ll_md_exp, &md);
2090 ll_update_inode(*inode, &md);
2092 LASSERT(sb != NULL);
2095 * At this point server returns to client's same fid as client
2096 * generated for creating. So using ->fid1 is okay here.
2098 LASSERT(fid_is_sane(&md.body->fid1));
2100 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, 0), &md);
2101 if (*inode == NULL || IS_ERR(*inode)) {
2103 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2104 #ifdef CONFIG_FS_POSIX_ACL
2106 posix_acl_release(md.posix_acl);
2107 md.posix_acl = NULL;
2110 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
2112 CERROR("new_inode -fatal: rc %d\n", rc);
2118 md_free_lustre_md(sbi->ll_md_exp, &md);
2122 int ll_obd_statfs(struct inode *inode, void *arg)
2124 struct ll_sb_info *sbi = NULL;
2125 struct obd_export *exp;
2127 struct obd_ioctl_data *data = NULL;
2131 if (!inode || !(sbi = ll_i2sbi(inode)))
2132 GOTO(out_statfs, rc = -EINVAL);
2134 rc = obd_ioctl_getdata(&buf, &len, arg);
2136 GOTO(out_statfs, rc);
2139 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2140 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2141 GOTO(out_statfs, rc = -EINVAL);
2143 if (data->ioc_inllen1 != sizeof(__u32) ||
2144 data->ioc_inllen2 != sizeof(__u32) ||
2145 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2146 data->ioc_plen2 != sizeof(struct obd_uuid))
2147 GOTO(out_statfs, rc = -EINVAL);
2149 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2150 if (type == LL_STATFS_LMV)
2151 exp = sbi->ll_md_exp;
2152 else if (type == LL_STATFS_LOV)
2153 exp = sbi->ll_dt_exp;
2155 GOTO(out_statfs, rc = -ENODEV);
2157 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2159 GOTO(out_statfs, rc);
2162 obd_ioctl_freedata(buf, len);
2166 int ll_process_config(struct lustre_cfg *lcfg)
2170 struct lprocfs_static_vars lvars;
2174 lprocfs_llite_init_vars(&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,
2195 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2196 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2197 struct inode *i1, struct inode *i2,
2198 const char *name, int namelen,
2199 int mode, __u32 opc, void *data)
2201 LASSERT(i1 != NULL);
2203 if (namelen > ll_i2sbi(i1)->ll_namelen)
2204 return ERR_PTR(-ENAMETOOLONG);
2206 if (op_data == NULL)
2207 OBD_ALLOC_PTR(op_data);
2209 if (op_data == NULL)
2210 return ERR_PTR(-ENOMEM);
2212 ll_i2gids(op_data->op_suppgids, i1, i2);
2213 op_data->op_fid1 = *ll_inode2fid(i1);
2214 op_data->op_capa1 = ll_mdscapa_get(i1);
2217 op_data->op_fid2 = *ll_inode2fid(i2);
2218 op_data->op_capa2 = ll_mdscapa_get(i2);
2220 fid_zero(&op_data->op_fid2);
2221 op_data->op_capa2 = NULL;
2224 op_data->op_name = name;
2225 op_data->op_namelen = namelen;
2226 op_data->op_mode = mode;
2227 op_data->op_mod_time = cfs_time_current_sec();
2228 op_data->op_fsuid = cfs_curproc_fsuid();
2229 op_data->op_fsgid = cfs_curproc_fsgid();
2230 op_data->op_cap = cfs_curproc_cap_pack();
2231 op_data->op_bias = MDS_CHECK_SPLIT;
2232 op_data->op_opc = opc;
2233 op_data->op_mds = 0;
2234 op_data->op_data = data;
2236 /* If the file is being opened after mknod() (normally due to NFS)
2237 * try to use the default stripe data from parent directory for
2238 * allocating OST objects. Try to pass the parent FID to MDS. */
2239 if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
2240 ll_i2info(i2)->lli_smd == NULL) {
2241 struct ll_inode_info *lli = ll_i2info(i2);
2243 cfs_spin_lock(&lli->lli_lock);
2244 if (likely(lli->lli_smd == NULL &&
2245 !fid_is_zero(&lli->lli_pfid)))
2246 op_data->op_fid1 = lli->lli_pfid;
2247 cfs_spin_unlock(&lli->lli_lock);
2248 /** We ignore parent's capability temporary. */
2254 void ll_finish_md_op_data(struct md_op_data *op_data)
2256 capa_put(op_data->op_capa1);
2257 capa_put(op_data->op_capa2);
2258 OBD_FREE_PTR(op_data);
2261 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2263 struct ll_sb_info *sbi;
2265 LASSERT((seq != NULL) && (vfs != NULL));
2266 sbi = ll_s2sbi(vfs->mnt_sb);
2268 if (sbi->ll_flags & LL_SBI_NOLCK)
2269 seq_puts(seq, ",nolock");
2271 if (sbi->ll_flags & LL_SBI_FLOCK)
2272 seq_puts(seq, ",flock");
2274 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2275 seq_puts(seq, ",localflock");
2277 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2278 seq_puts(seq, ",user_xattr");
2280 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2281 seq_puts(seq, ",lazystatfs");
2287 * Get obd name by cmd, and copy out to user space
2289 int ll_get_obd_name(struct inode *inode, unsigned int cmd, unsigned long arg)
2291 struct ll_sb_info *sbi = ll_i2sbi(inode);
2292 struct obd_device *obd;
2295 if (cmd == OBD_IOC_GETDTNAME)
2296 obd = class_exp2obd(sbi->ll_dt_exp);
2297 else if (cmd == OBD_IOC_GETMDNAME)
2298 obd = class_exp2obd(sbi->ll_md_exp);
2305 if (cfs_copy_to_user((void *)arg, obd->obd_name,
2306 strlen(obd->obd_name) + 1))