1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/llite/llite_lib.c
41 * Lustre Light Super operations
44 #define DEBUG_SUBSYSTEM S_LLITE
46 #include <linux/module.h>
47 #include <linux/types.h>
48 #include <linux/version.h>
51 #include <lustre_lite.h>
52 #include <lustre_ha.h>
53 #include <lustre_dlm.h>
54 #include <lprocfs_status.h>
55 #include <lustre_disk.h>
56 #include <lustre_param.h>
57 #include <lustre_log.h>
58 #include <cl_object.h>
59 #include <obd_cksum.h>
60 #include "llite_internal.h"
62 cfs_mem_cache_t *ll_file_data_slab;
64 CFS_LIST_HEAD(ll_super_blocks);
65 cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
67 #ifndef MS_HAS_NEW_AOPS
68 extern struct address_space_operations ll_aops;
69 extern struct address_space_operations ll_dir_aops;
71 extern struct address_space_operations_ext ll_aops;
72 extern struct address_space_operations_ext ll_dir_aops;
76 #define log2(n) cfs_ffz(~(n))
79 static struct ll_sb_info *ll_init_sbi(void)
81 struct ll_sb_info *sbi = NULL;
88 OBD_ALLOC(sbi, sizeof(*sbi));
92 cfs_spin_lock_init(&sbi->ll_lock);
93 cfs_init_mutex(&sbi->ll_lco.lco_lock);
94 cfs_spin_lock_init(&sbi->ll_pp_extent_lock);
95 cfs_spin_lock_init(&sbi->ll_process_lock);
96 sbi->ll_rw_stats_on = 0;
99 pages = si.totalram - si.totalhigh;
100 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
101 #ifdef HAVE_BGL_SUPPORT
102 sbi->ll_async_page_max = pages / 4;
104 sbi->ll_async_page_max = pages / 2;
107 sbi->ll_async_page_max = (pages / 4) * 3;
110 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
111 SBI_DEFAULT_READAHEAD_MAX);
112 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
113 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
114 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
115 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
116 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
118 ll_generate_random_uuid(uuid);
119 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
120 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
122 cfs_spin_lock(&ll_sb_lock);
123 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
124 cfs_spin_unlock(&ll_sb_lock);
126 #ifdef ENABLE_CHECKSUM
127 sbi->ll_flags |= LL_SBI_CHECKSUM;
130 #ifdef HAVE_LRU_RESIZE_SUPPORT
131 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
134 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
135 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
137 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
141 /* metadata statahead is enabled by default */
142 sbi->ll_sa_max = LL_SA_RPC_DEF;
143 atomic_set(&sbi->ll_sa_total, 0);
144 atomic_set(&sbi->ll_sa_wrong, 0);
149 void ll_free_sbi(struct super_block *sb)
151 struct ll_sb_info *sbi = ll_s2sbi(sb);
155 cfs_spin_lock(&ll_sb_lock);
156 cfs_list_del(&sbi->ll_list);
157 cfs_spin_unlock(&ll_sb_lock);
158 OBD_FREE(sbi, sizeof(*sbi));
163 static struct dentry_operations ll_d_root_ops = {
164 .d_compare = ll_dcompare,
165 .d_revalidate = ll_revalidate_nd,
168 static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
169 struct vfsmount *mnt)
171 struct inode *root = 0;
172 struct ll_sb_info *sbi = ll_s2sbi(sb);
173 struct obd_device *obd;
174 struct obd_capa *oc = NULL;
175 struct obd_statfs osfs;
176 struct ptlrpc_request *request = NULL;
177 struct obd_connect_data *data = NULL;
178 struct obd_uuid *uuid;
179 struct md_op_data *op_data;
180 struct lustre_md lmd;
182 int size, err, checksum;
185 obd = class_name2obd(md);
187 CERROR("MD %s: not setup or attached\n", md);
195 if (proc_lustre_fs_root) {
196 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
199 CERROR("could not register mount in /proc/fs/lustre\n");
202 /* indicate the features supported by this client */
203 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
204 OBD_CONNECT_JOIN | OBD_CONNECT_ATTRFID |
205 OBD_CONNECT_VERSION | OBD_CONNECT_BRW_SIZE |
206 OBD_CONNECT_MDS_CAPA | OBD_CONNECT_OSS_CAPA |
207 OBD_CONNECT_CANCELSET| OBD_CONNECT_FID |
208 OBD_CONNECT_AT | OBD_CONNECT_LOV_V3 |
209 OBD_CONNECT_RMT_CLIENT | OBD_CONNECT_VBR |
210 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH;
212 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
213 data->ocd_connect_flags |= OBD_CONNECT_SOM;
215 #ifdef HAVE_LRU_RESIZE_SUPPORT
216 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
217 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
219 #ifdef CONFIG_FS_POSIX_ACL
220 data->ocd_connect_flags |= OBD_CONNECT_ACL;
222 data->ocd_ibits_known = MDS_INODELOCK_FULL;
223 data->ocd_version = LUSTRE_VERSION_CODE;
225 if (sb->s_flags & MS_RDONLY)
226 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
227 if (sbi->ll_flags & LL_SBI_USER_XATTR)
228 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
230 #ifdef HAVE_MS_FLOCK_LOCK
231 /* force vfs to use lustre handler for flock() calls - bug 10743 */
232 sb->s_flags |= MS_FLOCK_LOCK;
234 #ifdef MS_HAS_NEW_AOPS
235 sb->s_flags |= MS_HAS_NEW_AOPS;
238 if (sbi->ll_flags & LL_SBI_FLOCK)
239 sbi->ll_fop = &ll_file_operations_flock;
240 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
241 sbi->ll_fop = &ll_file_operations;
243 sbi->ll_fop = &ll_file_operations_noflock;
246 data->ocd_connect_flags |= OBD_CONNECT_REAL;
247 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
248 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
250 data->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
252 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
254 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
255 "recovery, of which this client is not a "
256 "part. Please wait for recovery to complete,"
257 " abort, or time out.\n", md);
260 CERROR("cannot connect to %s: rc = %d\n", md, err);
264 err = obd_fid_init(sbi->ll_md_exp);
266 CERROR("Can't init metadata layer FID infrastructure, "
271 err = obd_statfs(obd, &osfs,
272 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
274 GOTO(out_md_fid, err);
276 size = sizeof(*data);
277 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
278 KEY_CONN_DATA, &size, data, NULL);
280 CERROR("Get connect data failed: %d \n", err);
284 LASSERT(osfs.os_bsize);
285 sb->s_blocksize = osfs.os_bsize;
286 sb->s_blocksize_bits = log2(osfs.os_bsize);
287 sb->s_magic = LL_SUPER_MAGIC;
289 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
290 * retval = in_file->f_op->sendfile(...);
292 * retval = -EOVERFLOW;
294 * it will check if *ppos is greater than max. However, max equals to
295 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
296 * has been defined as a signed long long integer in linux kernel. */
297 #if BITS_PER_LONG == 64
298 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
300 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
302 sbi->ll_namelen = osfs.os_namelen;
303 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
305 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
306 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
307 LCONSOLE_INFO("Disabling user_xattr feature because "
308 "it is not supported on the server\n");
309 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
312 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
314 sb->s_flags |= MS_POSIXACL;
316 sbi->ll_flags |= LL_SBI_ACL;
318 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
320 sb->s_flags &= ~MS_POSIXACL;
322 sbi->ll_flags &= ~LL_SBI_ACL;
325 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
326 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
327 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
328 LCONSOLE_INFO("client is set as remote by default.\n");
331 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
332 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
333 LCONSOLE_INFO("client claims to be remote, but server "
334 "rejected, forced to be local.\n");
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 if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
349 sbi->ll_flags |= LL_SBI_64BIT_HASH;
351 if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
352 sbi->ll_md_brw_size = data->ocd_brw_size;
354 sbi->ll_md_brw_size = CFS_PAGE_SIZE;
356 obd = class_name2obd(dt);
358 CERROR("DT %s: not setup or attached\n", dt);
359 GOTO(out_md_fid, err = -ENODEV);
362 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
363 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
364 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
365 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
366 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
367 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
368 OBD_CONNECT_FULL20 | OBD_CONNECT_64BITHASH;
370 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
371 data->ocd_connect_flags |= OBD_CONNECT_SOM;
373 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
374 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
375 * disabled by default, because it can still be enabled on the
376 * fly via /proc. As a consequence, we still need to come to an
377 * agreement on the supported algorithms at connect time */
378 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
380 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
381 data->ocd_cksum_types = OBD_CKSUM_ADLER;
383 /* send the list of supported checksum types */
384 data->ocd_cksum_types = OBD_CKSUM_ALL;
387 #ifdef HAVE_LRU_RESIZE_SUPPORT
388 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
390 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
391 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
393 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
394 "ocd_grant: %d\n", data->ocd_connect_flags,
395 data->ocd_version, data->ocd_grant);
397 obd->obd_upcall.onu_owner = &sbi->ll_lco;
398 obd->obd_upcall.onu_upcall = cl_ocd_update;
400 data->ocd_brw_size = PTLRPC_MAX_BRW_SIZE;
402 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
404 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
405 "recovery, of which this client is not a "
406 "part. Please wait for recovery to "
407 "complete, abort, or time out.\n", dt);
408 GOTO(out_md_fid, err);
410 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
411 GOTO(out_md_fid, err);
414 err = obd_fid_init(sbi->ll_dt_exp);
416 CERROR("Can't init data layer FID infrastructure, "
421 cfs_mutex_down(&sbi->ll_lco.lco_lock);
422 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
423 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
424 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
425 cfs_mutex_up(&sbi->ll_lco.lco_lock);
427 fid_zero(&sbi->ll_root_fid);
428 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
430 CERROR("cannot mds_connect: rc = %d\n", err);
431 GOTO(out_lock_cn_cb, err);
433 if (!fid_is_sane(&sbi->ll_root_fid)) {
434 CERROR("Invalid root fid during mount\n");
435 GOTO(out_lock_cn_cb, err = -EINVAL);
437 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
439 sb->s_op = &lustre_super_operations;
440 #if THREAD_SIZE >= 8192
441 sb->s_export_op = &lustre_export_operations;
445 * XXX: move this to after cbd setup? */
446 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
447 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
448 valid |= OBD_MD_FLRMTPERM;
449 else if (sbi->ll_flags & LL_SBI_ACL)
450 valid |= OBD_MD_FLACL;
452 OBD_ALLOC_PTR(op_data);
454 GOTO(out_lock_cn_cb, err = -ENOMEM);
456 op_data->op_fid1 = sbi->ll_root_fid;
457 op_data->op_mode = 0;
458 op_data->op_capa1 = oc;
459 op_data->op_valid = valid;
461 err = md_getattr(sbi->ll_md_exp, op_data, &request);
464 OBD_FREE_PTR(op_data);
466 CERROR("md_getattr failed for root: rc = %d\n", err);
467 GOTO(out_lock_cn_cb, err);
469 memset(&lmd, 0, sizeof(lmd));
470 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
471 sbi->ll_md_exp, &lmd);
473 CERROR("failed to understand root inode md: rc = %d\n", err);
474 ptlrpc_req_finished (request);
475 GOTO(out_lock_cn_cb, err);
478 LASSERT(fid_is_sane(&sbi->ll_root_fid));
479 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, 0), &lmd);
480 md_free_lustre_md(sbi->ll_md_exp, &lmd);
481 ptlrpc_req_finished(request);
483 if (root == NULL || IS_ERR(root)) {
485 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
486 #ifdef CONFIG_FS_POSIX_ACL
488 posix_acl_release(lmd.posix_acl);
489 lmd.posix_acl = NULL;
492 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
494 CERROR("lustre_lite: bad iget4 for root\n");
498 err = ll_close_thread_start(&sbi->ll_lcq);
500 CERROR("cannot start close thread: rc %d\n", err);
504 #ifdef CONFIG_FS_POSIX_ACL
505 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
506 rct_init(&sbi->ll_rct);
507 et_init(&sbi->ll_et);
511 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
512 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
513 KEY_CHECKSUM, sizeof(checksum), &checksum,
517 sb->s_root = d_alloc_root(root);
519 OBD_FREE(data, sizeof(*data));
521 sb->s_root->d_op = &ll_d_root_ops;
523 sbi->ll_sdev_orig = sb->s_dev;
525 /* We set sb->s_dev equal on all lustre clients in order to support
526 * NFS export clustering. NFSD requires that the FSID be the same
528 /* s_dev is also used in lt_compare() to compare two fs, but that is
529 * only a node-local comparison. */
530 uuid = obd_get_uuid(sbi->ll_md_exp);
532 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
540 obd_fid_fini(sbi->ll_dt_exp);
542 obd_disconnect(sbi->ll_dt_exp);
543 sbi->ll_dt_exp = NULL;
545 obd_fid_fini(sbi->ll_md_exp);
547 obd_disconnect(sbi->ll_md_exp);
548 sbi->ll_md_exp = NULL;
552 lprocfs_unregister_mountpoint(sbi);
556 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
560 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
562 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
563 KEY_MAX_EASIZE, &size, lmmsize, NULL);
565 CERROR("Get max mdsize error rc %d \n", rc);
570 void ll_dump_inode(struct inode *inode)
572 struct list_head *tmp;
573 int dentry_count = 0;
575 LASSERT(inode != NULL);
577 list_for_each(tmp, &inode->i_dentry)
580 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
581 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
582 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
585 void lustre_dump_dentry(struct dentry *dentry, int recur)
587 struct list_head *tmp;
590 LASSERT(dentry != NULL);
592 list_for_each(tmp, &dentry->d_subdirs)
595 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
596 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
597 dentry->d_name.len, dentry->d_name.name,
598 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
599 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
600 dentry->d_flags, dentry->d_fsdata, subdirs);
601 if (dentry->d_inode != NULL)
602 ll_dump_inode(dentry->d_inode);
607 list_for_each(tmp, &dentry->d_subdirs) {
608 struct dentry *d = list_entry(tmp, struct dentry, d_child);
609 lustre_dump_dentry(d, recur - 1);
613 void client_common_put_super(struct super_block *sb)
615 struct ll_sb_info *sbi = ll_s2sbi(sb);
618 #ifdef CONFIG_FS_POSIX_ACL
619 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
620 et_fini(&sbi->ll_et);
621 rct_fini(&sbi->ll_rct);
625 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
627 ll_close_thread_shutdown(sbi->ll_lcq);
631 cfs_list_del(&sbi->ll_conn_chain);
633 obd_fid_fini(sbi->ll_dt_exp);
634 obd_disconnect(sbi->ll_dt_exp);
635 sbi->ll_dt_exp = NULL;
637 lprocfs_unregister_mountpoint(sbi);
639 obd_fid_fini(sbi->ll_md_exp);
640 obd_disconnect(sbi->ll_md_exp);
641 sbi->ll_md_exp = NULL;
646 void ll_kill_super(struct super_block *sb)
648 struct ll_sb_info *sbi;
653 if (!(sb->s_flags & MS_ACTIVE))
657 /* we need restore s_dev from changed for clustred NFS before put_super
658 * because new kernels have cached s_dev and change sb->s_dev in
659 * put_super not affected real removing devices */
661 sb->s_dev = sbi->ll_sdev_orig;
665 char *ll_read_opt(const char *opt, char *data)
671 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
672 if (strncmp(opt, data, strlen(opt)))
674 if ((value = strchr(data, '=')) == NULL)
678 OBD_ALLOC(retval, strlen(value) + 1);
680 CERROR("out of memory!\n");
684 memcpy(retval, value, strlen(value)+1);
685 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
689 static inline int ll_set_opt(const char *opt, char *data, int fl)
691 if (strncmp(opt, data, strlen(opt)) != 0)
697 /* non-client-specific mount options are parsed in lmd_parse */
698 static int ll_options(char *options, int *flags)
701 char *s1 = options, *s2;
707 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
710 CDEBUG(D_SUPER, "next opt=%s\n", s1);
711 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
716 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
721 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
726 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
731 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
736 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
741 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
742 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
744 /* Ignore deprecated mount option. The client will
745 * always try to mount with ACL support, whether this
746 * is used depends on whether server supports it. */
747 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
748 "mount option 'acl'.\n");
751 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
753 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
754 "mount option 'noacl'.\n");
758 #warning "{no}acl options have been deprecated since 1.8, please remove them"
760 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
766 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
771 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
776 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
781 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
786 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
791 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
796 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
801 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
807 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
813 s2 = strchr(s1, ',');
821 void ll_lli_init(struct ll_inode_info *lli)
823 lli->lli_inode_magic = LLI_INODE_MAGIC;
824 cfs_sema_init(&lli->lli_size_sem, 1);
825 cfs_sema_init(&lli->lli_write_sem, 1);
826 cfs_init_rwsem(&lli->lli_trunc_sem);
828 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
829 cfs_spin_lock_init(&lli->lli_lock);
830 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
831 lli->lli_inode_magic = LLI_INODE_MAGIC;
832 cfs_sema_init(&lli->lli_och_sem, 1);
833 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
834 lli->lli_mds_exec_och = NULL;
835 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
836 lli->lli_open_fd_exec_count = 0;
837 CFS_INIT_LIST_HEAD(&lli->lli_dead_list);
838 lli->lli_remote_perms = NULL;
839 lli->lli_rmtperm_utime = 0;
840 cfs_sema_init(&lli->lli_rmtperm_sem, 1);
841 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
842 cfs_spin_lock_init(&lli->lli_sa_lock);
843 cfs_sema_init(&lli->lli_readdir_sem, 1);
844 fid_zero(&lli->lli_pfid);
847 static inline int ll_bdi_register(struct backing_dev_info *bdi)
849 #ifdef HAVE_BDI_REGISTER
850 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
852 bdi->name = "lustre";
853 return bdi_register(bdi, NULL, "lustre-%d",
854 atomic_inc_return(&ll_bdi_num));
860 int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
862 struct lustre_profile *lprof;
863 struct lustre_sb_info *lsi = s2lsi(sb);
864 struct ll_sb_info *sbi;
865 char *dt = NULL, *md = NULL;
866 char *profilenm = get_profile_name(sb);
867 struct config_llog_instance cfg = {0, };
868 char ll_instance[sizeof(sb) * 2 + 1];
872 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
876 /* client additional sb info */
877 lsi->lsi_llsbi = sbi = ll_init_sbi();
879 cfs_module_put(THIS_MODULE);
883 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
887 err = ll_bdi_init(&lsi->lsi_bdi);
890 lsi->lsi_flags |= LSI_BDI_INITIALIZED;
891 lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
892 err = ll_bdi_register(&lsi->lsi_bdi);
897 sb->s_bdi = &lsi->lsi_bdi;
900 /* Generate a string unique to this super, in case some joker tries
901 to mount the same fs at two mount points.
902 Use the address of the super itself.*/
903 sprintf(ll_instance, "%p", sb);
904 cfg.cfg_instance = ll_instance;
905 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
907 /* set up client obds */
908 err = lustre_process_log(sb, profilenm, &cfg);
910 CERROR("Unable to process log: %d\n", err);
914 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
915 lprof = class_get_profile(profilenm);
917 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
918 " read from the MGS. Does that filesystem "
919 "exist?\n", profilenm);
920 GOTO(out_free, err = -EINVAL);
922 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
923 lprof->lp_md, lprof->lp_dt);
925 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
926 strlen(ll_instance) + 2);
928 GOTO(out_free, err = -ENOMEM);
929 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
931 OBD_ALLOC(md, strlen(lprof->lp_md) +
932 strlen(ll_instance) + 2);
934 GOTO(out_free, err = -ENOMEM);
935 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
937 /* connections, registrations, sb setup */
938 err = client_common_fill_super(sb, md, dt, mnt);
942 OBD_FREE(md, strlen(md) + 1);
944 OBD_FREE(dt, strlen(dt) + 1);
948 LCONSOLE_WARN("Client %s has started\n", profilenm);
951 } /* ll_fill_super */
954 void lu_context_keys_dump(void);
956 void ll_put_super(struct super_block *sb)
958 struct config_llog_instance cfg;
959 char ll_instance[sizeof(sb) * 2 + 1];
960 struct obd_device *obd;
961 struct lustre_sb_info *lsi = s2lsi(sb);
962 struct ll_sb_info *sbi = ll_s2sbi(sb);
963 char *profilenm = get_profile_name(sb);
967 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
969 ll_print_capa_stat(sbi);
971 sprintf(ll_instance, "%p", sb);
972 cfg.cfg_instance = ll_instance;
973 lustre_end_log(sb, NULL, &cfg);
975 if (sbi->ll_md_exp) {
976 obd = class_exp2obd(sbi->ll_md_exp);
978 force = obd->obd_force;
981 /* We need to set force before the lov_disconnect in
982 lustre_common_put_super, since l_d cleans up osc's as well. */
985 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
987 obd->obd_force = force;
992 /* Only if client_common_fill_super succeeded */
993 client_common_put_super(sb);
997 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
998 class_manual_cleanup(obd);
1002 class_del_profile(profilenm);
1004 if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
1005 ll_bdi_destroy(&lsi->lsi_bdi);
1006 lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
1010 lsi->lsi_llsbi = NULL;
1012 lustre_common_put_super(sb);
1014 cl_env_cache_purge(~0);
1016 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
1018 cfs_module_put(THIS_MODULE);
1021 } /* client_put_super */
1023 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1025 struct inode *inode = NULL;
1026 /* NOTE: we depend on atomic igrab() -bzzz */
1027 lock_res_and_lock(lock);
1028 if (lock->l_ast_data) {
1029 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1030 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1031 inode = igrab(lock->l_ast_data);
1033 inode = lock->l_ast_data;
1034 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1035 D_WARNING, lock, "l_ast_data %p is "
1036 "bogus: magic %08x", lock->l_ast_data,
1037 lli->lli_inode_magic);
1041 unlock_res_and_lock(lock);
1045 static int null_if_equal(struct ldlm_lock *lock, void *data)
1047 if (data == lock->l_ast_data) {
1048 lock->l_ast_data = NULL;
1050 if (lock->l_req_mode != lock->l_granted_mode)
1051 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1054 return LDLM_ITER_CONTINUE;
1057 void ll_clear_inode(struct inode *inode)
1059 struct ll_inode_info *lli = ll_i2info(inode);
1060 struct ll_sb_info *sbi = ll_i2sbi(inode);
1063 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1064 inode->i_generation, inode);
1066 if (S_ISDIR(inode->i_mode)) {
1067 /* these should have been cleared in ll_file_release */
1068 LASSERT(lli->lli_sai == NULL);
1069 LASSERT(lli->lli_opendir_key == NULL);
1070 LASSERT(lli->lli_opendir_pid == 0);
1073 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1074 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1075 null_if_equal, inode);
1077 LASSERT(!lli->lli_open_fd_write_count);
1078 LASSERT(!lli->lli_open_fd_read_count);
1079 LASSERT(!lli->lli_open_fd_exec_count);
1081 if (lli->lli_mds_write_och)
1082 ll_md_real_close(inode, FMODE_WRITE);
1083 if (lli->lli_mds_exec_och)
1084 ll_md_real_close(inode, FMODE_EXEC);
1085 if (lli->lli_mds_read_och)
1086 ll_md_real_close(inode, FMODE_READ);
1088 if (lli->lli_symlink_name) {
1089 OBD_FREE(lli->lli_symlink_name,
1090 strlen(lli->lli_symlink_name) + 1);
1091 lli->lli_symlink_name = NULL;
1094 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1095 LASSERT(lli->lli_posix_acl == NULL);
1096 if (lli->lli_remote_perms) {
1097 free_rmtperm_hash(lli->lli_remote_perms);
1098 lli->lli_remote_perms = NULL;
1101 #ifdef CONFIG_FS_POSIX_ACL
1102 else if (lli->lli_posix_acl) {
1103 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1104 LASSERT(lli->lli_remote_perms == NULL);
1105 posix_acl_release(lli->lli_posix_acl);
1106 lli->lli_posix_acl = NULL;
1109 lli->lli_inode_magic = LLI_INODE_DEAD;
1111 ll_clear_inode_capas(inode);
1113 * XXX This has to be done before lsm is freed below, because
1114 * cl_object still uses inode lsm.
1116 cl_inode_fini(inode);
1119 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1120 lli->lli_smd = NULL;
1127 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1128 struct md_open_data **mod)
1130 struct lustre_md md;
1131 struct ll_sb_info *sbi = ll_i2sbi(inode);
1132 struct ptlrpc_request *request = NULL;
1136 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1137 LUSTRE_OPC_ANY, NULL);
1138 if (IS_ERR(op_data))
1139 RETURN(PTR_ERR(op_data));
1141 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1144 ptlrpc_req_finished(request);
1145 if (rc == -ENOENT) {
1147 /* Unlinked special device node? Or just a race?
1148 * Pretend we done everything. */
1149 if (!S_ISREG(inode->i_mode) &&
1150 !S_ISDIR(inode->i_mode))
1151 rc = inode_setattr(inode, &op_data->op_attr);
1152 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1153 CERROR("md_setattr fails: rc = %d\n", rc);
1158 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1159 sbi->ll_md_exp, &md);
1161 ptlrpc_req_finished(request);
1165 /* We call inode_setattr to adjust timestamps.
1166 * If there is at least some data in file, we cleared ATTR_SIZE
1167 * above to avoid invoking vmtruncate, otherwise it is important
1168 * to call vmtruncate in inode_setattr to update inode->i_size
1170 rc = inode_setattr(inode, &op_data->op_attr);
1172 /* Extract epoch data if obtained. */
1173 op_data->op_handle = md.body->handle;
1174 op_data->op_ioepoch = md.body->ioepoch;
1176 ll_update_inode(inode, &md);
1177 ptlrpc_req_finished(request);
1182 /* Close IO epoch and send Size-on-MDS attribute update. */
1183 static int ll_setattr_done_writing(struct inode *inode,
1184 struct md_op_data *op_data,
1185 struct md_open_data *mod)
1187 struct ll_inode_info *lli = ll_i2info(inode);
1191 LASSERT(op_data != NULL);
1192 if (!S_ISREG(inode->i_mode))
1195 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1196 op_data->op_ioepoch, PFID(&lli->lli_fid));
1198 op_data->op_flags = MF_EPOCH_CLOSE;
1199 ll_done_writing_attr(inode, op_data);
1200 ll_pack_inode2opdata(inode, op_data, NULL);
1202 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1203 if (rc == -EAGAIN) {
1204 /* MDS has instructed us to obtain Size-on-MDS attribute
1205 * from OSTs and send setattr to back to MDS. */
1206 rc = ll_som_update(inode, op_data);
1208 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1214 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1216 struct obd_capa *capa;
1219 if (attr->ia_valid & ATTR_SIZE)
1220 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1222 capa = ll_mdscapa_get(inode);
1224 rc = cl_setattr_ost(inode, attr, capa);
1226 if (attr->ia_valid & ATTR_SIZE)
1227 ll_truncate_free_capa(capa);
1234 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1235 * object(s) determine the file size and mtime. Otherwise, the MDS will
1236 * keep these values until such a time that objects are allocated for it.
1237 * We do the MDS operations first, as it is checking permissions for us.
1238 * We don't to the MDS RPC if there is nothing that we want to store there,
1239 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1240 * going to do an RPC anyways.
1242 * If we are doing a truncate, we will send the mtime and ctime updates
1243 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1244 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1247 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1249 struct ll_inode_info *lli = ll_i2info(inode);
1250 struct lov_stripe_md *lsm = lli->lli_smd;
1251 struct md_op_data *op_data = NULL;
1252 struct md_open_data *mod = NULL;
1253 int ia_valid = attr->ia_valid;
1254 int rc = 0, rc1 = 0;
1257 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1259 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1261 if (ia_valid & ATTR_SIZE) {
1262 if (attr->ia_size > ll_file_maxbytes(inode)) {
1263 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1264 attr->ia_size, ll_file_maxbytes(inode));
1268 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1271 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1272 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1273 if (cfs_curproc_fsuid() != inode->i_uid &&
1274 !cfs_capable(CFS_CAP_FOWNER))
1278 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1279 if (attr->ia_valid & ATTR_CTIME) {
1280 attr->ia_ctime = CFS_CURRENT_TIME;
1281 attr->ia_valid |= ATTR_CTIME_SET;
1283 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1284 attr->ia_atime = CFS_CURRENT_TIME;
1285 attr->ia_valid |= ATTR_ATIME_SET;
1287 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1288 attr->ia_mtime = CFS_CURRENT_TIME;
1289 attr->ia_valid |= ATTR_MTIME_SET;
1292 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1293 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1294 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1295 cfs_time_current_sec());
1297 /* NB: ATTR_SIZE will only be set after this point if the size
1298 * resides on the MDS, ie, this file has no objects. */
1300 attr->ia_valid &= ~ATTR_SIZE;
1302 /* We always do an MDS RPC, even if we're only changing the size;
1303 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1305 OBD_ALLOC_PTR(op_data);
1306 if (op_data == NULL)
1309 UNLOCK_INODE_MUTEX(inode);
1310 if (ia_valid & ATTR_SIZE)
1311 UP_WRITE_I_ALLOC_SEM(inode);
1312 cfs_down_write(&lli->lli_trunc_sem);
1313 LOCK_INODE_MUTEX(inode);
1314 if (ia_valid & ATTR_SIZE)
1315 DOWN_WRITE_I_ALLOC_SEM(inode);
1317 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1319 /* Open epoch for truncate. */
1320 if (exp_connect_som(ll_i2mdexp(inode)) &&
1321 (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1322 op_data->op_flags = MF_EPOCH_OPEN;
1324 rc = ll_md_setattr(inode, op_data, &mod);
1328 ll_ioepoch_open(lli, op_data->op_ioepoch);
1329 if (!lsm || !S_ISREG(inode->i_mode)) {
1330 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1334 if (ia_valid & ATTR_SIZE)
1335 attr->ia_valid |= ATTR_SIZE;
1336 if (ia_valid & (ATTR_SIZE |
1337 ATTR_ATIME | ATTR_ATIME_SET |
1338 ATTR_MTIME | ATTR_MTIME_SET))
1339 /* on truncate and utimes send attributes to osts, setting
1340 * mtime/atime to past will be performed under PW 0:EOF extent
1341 * lock (new_size:EOF for truncate)
1342 * it may seem excessive to send mtime/atime updates to osts
1343 * when not setting times to past, but it is necessary due to
1344 * possible time de-synchronization */
1345 rc = ll_setattr_ost(inode, attr);
1349 if (op_data->op_ioepoch)
1350 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1351 ll_finish_md_op_data(op_data);
1353 cfs_up_write(&lli->lli_trunc_sem);
1354 return rc ? rc : rc1;
1357 int ll_setattr(struct dentry *de, struct iattr *attr)
1359 int mode = de->d_inode->i_mode;
1361 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1362 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1363 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1365 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1366 (ATTR_SIZE|ATTR_MODE)) &&
1367 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1368 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1369 !(attr->ia_mode & S_ISGID))))
1370 attr->ia_valid |= ATTR_FORCE;
1372 if ((mode & S_ISUID) &&
1373 !(attr->ia_mode & S_ISUID) &&
1374 !(attr->ia_valid & ATTR_KILL_SUID))
1375 attr->ia_valid |= ATTR_KILL_SUID;
1377 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1378 !(attr->ia_mode & S_ISGID) &&
1379 !(attr->ia_valid & ATTR_KILL_SGID))
1380 attr->ia_valid |= ATTR_KILL_SGID;
1382 return ll_setattr_raw(de->d_inode, attr);
1385 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1386 __u64 max_age, __u32 flags)
1388 struct ll_sb_info *sbi = ll_s2sbi(sb);
1389 struct obd_statfs obd_osfs;
1393 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1395 CERROR("md_statfs fails: rc = %d\n", rc);
1399 osfs->os_type = sb->s_magic;
1401 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1402 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1404 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1405 flags |= OBD_STATFS_NODELAY;
1407 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1408 &obd_osfs, max_age, flags);
1410 CERROR("obd_statfs fails: rc = %d\n", rc);
1414 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1415 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1418 osfs->os_bsize = obd_osfs.os_bsize;
1419 osfs->os_blocks = obd_osfs.os_blocks;
1420 osfs->os_bfree = obd_osfs.os_bfree;
1421 osfs->os_bavail = obd_osfs.os_bavail;
1423 /* If we don't have as many objects free on the OST as inodes
1424 * on the MDS, we reduce the total number of inodes to
1425 * compensate, so that the "inodes in use" number is correct.
1427 if (obd_osfs.os_ffree < osfs->os_ffree) {
1428 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1430 osfs->os_ffree = obd_osfs.os_ffree;
1435 #ifndef HAVE_STATFS_DENTRY_PARAM
1436 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1439 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1441 struct super_block *sb = de->d_sb;
1443 struct obd_statfs osfs;
1446 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1447 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1449 /* Some amount of caching on the client is allowed */
1450 rc = ll_statfs_internal(sb, &osfs,
1451 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1456 statfs_unpack(sfs, &osfs);
1458 /* We need to downshift for all 32-bit kernels, because we can't
1459 * tell if the kernel is being called via sys_statfs64() or not.
1460 * Stop before overflowing f_bsize - in which case it is better
1461 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1462 if (sizeof(long) < 8) {
1463 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1466 osfs.os_blocks >>= 1;
1467 osfs.os_bfree >>= 1;
1468 osfs.os_bavail >>= 1;
1472 sfs->f_blocks = osfs.os_blocks;
1473 sfs->f_bfree = osfs.os_bfree;
1474 sfs->f_bavail = osfs.os_bavail;
1479 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1481 struct ll_inode_info *lli;
1482 struct lov_stripe_md *lsm;
1484 lli = ll_i2info(inode);
1485 LASSERT(lli->lli_size_sem_owner != current);
1486 cfs_down(&lli->lli_size_sem);
1487 LASSERT(lli->lli_size_sem_owner == NULL);
1488 lli->lli_size_sem_owner = current;
1490 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1493 lov_stripe_lock(lsm);
1496 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1498 struct ll_inode_info *lli;
1499 struct lov_stripe_md *lsm;
1501 lli = ll_i2info(inode);
1503 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1506 lov_stripe_unlock(lsm);
1507 LASSERT(lli->lli_size_sem_owner == current);
1508 lli->lli_size_sem_owner = NULL;
1509 cfs_up(&lli->lli_size_sem);
1512 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1514 struct ll_inode_info *lli = ll_i2info(inode);
1515 struct mdt_body *body = md->body;
1516 struct lov_stripe_md *lsm = md->lsm;
1517 struct ll_sb_info *sbi = ll_i2sbi(inode);
1519 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1521 cfs_down(&lli->lli_och_sem);
1522 if (lli->lli_smd == NULL) {
1523 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1524 lsm->lsm_magic != LOV_MAGIC_V3) {
1525 dump_lsm(D_ERROR, lsm);
1528 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1529 lsm, inode->i_ino, inode->i_generation, inode);
1530 /* cl_inode_init must go before lli_smd or a race is
1531 * possible where client thinks the file has stripes,
1532 * but lov raid0 is not setup yet and parallel e.g.
1533 * glimpse would try to use uninitialized lov */
1534 cl_inode_init(inode, md);
1535 cfs_spin_lock(&lli->lli_lock);
1537 cfs_spin_unlock(&lli->lli_lock);
1538 cfs_up(&lli->lli_och_sem);
1539 lli->lli_maxbytes = lsm->lsm_maxbytes;
1540 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1541 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1543 cfs_up(&lli->lli_och_sem);
1544 LASSERT(lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1545 lli->lli_smd->lsm_stripe_count ==
1546 lsm->lsm_stripe_count);
1547 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1548 CERROR("lsm mismatch for inode %ld\n",
1550 CERROR("lli_smd:\n");
1551 dump_lsm(D_ERROR, lli->lli_smd);
1553 dump_lsm(D_ERROR, lsm);
1557 if (lli->lli_smd != lsm)
1558 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1561 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1562 if (body->valid & OBD_MD_FLRMTPERM)
1563 ll_update_remote_perm(inode, md->remote_perm);
1565 #ifdef CONFIG_FS_POSIX_ACL
1566 else if (body->valid & OBD_MD_FLACL) {
1567 cfs_spin_lock(&lli->lli_lock);
1568 if (lli->lli_posix_acl)
1569 posix_acl_release(lli->lli_posix_acl);
1570 lli->lli_posix_acl = md->posix_acl;
1571 cfs_spin_unlock(&lli->lli_lock);
1574 inode->i_ino = cl_fid_build_ino(&body->fid1, 0);
1575 inode->i_generation = cl_fid_build_gen(&body->fid1);
1577 if (body->valid & OBD_MD_FLATIME) {
1578 if (body->atime > LTIME_S(inode->i_atime))
1579 LTIME_S(inode->i_atime) = body->atime;
1580 lli->lli_lvb.lvb_atime = body->atime;
1582 if (body->valid & OBD_MD_FLMTIME) {
1583 if (body->mtime > LTIME_S(inode->i_mtime)) {
1584 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1585 "to "LPU64"\n", inode->i_ino,
1586 LTIME_S(inode->i_mtime), body->mtime);
1587 LTIME_S(inode->i_mtime) = body->mtime;
1589 lli->lli_lvb.lvb_mtime = body->mtime;
1591 if (body->valid & OBD_MD_FLCTIME) {
1592 if (body->ctime > LTIME_S(inode->i_ctime))
1593 LTIME_S(inode->i_ctime) = body->ctime;
1594 lli->lli_lvb.lvb_ctime = body->ctime;
1596 if (body->valid & OBD_MD_FLMODE)
1597 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1598 if (body->valid & OBD_MD_FLTYPE)
1599 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1600 LASSERT(inode->i_mode != 0);
1601 if (S_ISREG(inode->i_mode)) {
1602 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1604 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1606 #ifdef HAVE_INODE_BLKSIZE
1607 inode->i_blksize = 1<<inode->i_blkbits;
1609 if (body->valid & OBD_MD_FLUID)
1610 inode->i_uid = body->uid;
1611 if (body->valid & OBD_MD_FLGID)
1612 inode->i_gid = body->gid;
1613 if (body->valid & OBD_MD_FLFLAGS)
1614 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1615 if (body->valid & OBD_MD_FLNLINK)
1616 inode->i_nlink = body->nlink;
1617 if (body->valid & OBD_MD_FLRDEV)
1618 inode->i_rdev = old_decode_dev(body->rdev);
1620 if (body->valid & OBD_MD_FLID) {
1621 /* FID shouldn't be changed! */
1622 if (fid_is_sane(&lli->lli_fid)) {
1623 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1624 "Trying to change FID "DFID
1625 " to the "DFID", inode %lu/%u(%p)\n",
1626 PFID(&lli->lli_fid), PFID(&body->fid1),
1627 inode->i_ino, inode->i_generation, inode);
1629 lli->lli_fid = body->fid1;
1632 LASSERT(fid_seq(&lli->lli_fid) != 0);
1634 if (body->valid & OBD_MD_FLSIZE) {
1635 if (exp_connect_som(ll_i2mdexp(inode)) &&
1636 S_ISREG(inode->i_mode) && lli->lli_smd) {
1637 struct lustre_handle lockh;
1640 /* As it is possible a blocking ast has been processed
1641 * by this time, we need to check there is an UPDATE
1642 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1644 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1647 if (lli->lli_flags & (LLIF_DONE_WRITING |
1648 LLIF_EPOCH_PENDING |
1650 CERROR("ino %lu flags %lu still has "
1651 "size authority! do not trust "
1652 "the size got from MDS\n",
1653 inode->i_ino, lli->lli_flags);
1655 /* Use old size assignment to avoid
1656 * deadlock bz14138 & bz14326 */
1657 inode->i_size = body->size;
1658 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1660 ldlm_lock_decref(&lockh, mode);
1663 /* Use old size assignment to avoid
1664 * deadlock bz14138 & bz14326 */
1665 inode->i_size = body->size;
1667 CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
1668 inode->i_ino, (unsigned long long)body->size);
1671 if (body->valid & OBD_MD_FLBLOCKS)
1672 inode->i_blocks = body->blocks;
1675 if (body->valid & OBD_MD_FLMDSCAPA) {
1676 LASSERT(md->mds_capa);
1677 ll_add_capa(inode, md->mds_capa);
1679 if (body->valid & OBD_MD_FLOSSCAPA) {
1680 LASSERT(md->oss_capa);
1681 ll_add_capa(inode, md->oss_capa);
1685 void ll_read_inode2(struct inode *inode, void *opaque)
1687 struct lustre_md *md = opaque;
1688 struct ll_inode_info *lli = ll_i2info(inode);
1691 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1692 inode->i_ino, inode->i_generation, inode);
1696 LASSERT(!lli->lli_smd);
1698 /* Core attributes from the MDS first. This is a new inode, and
1699 * the VFS doesn't zero times in the core inode so we have to do
1700 * it ourselves. They will be overwritten by either MDS or OST
1701 * attributes - we just need to make sure they aren't newer. */
1702 LTIME_S(inode->i_mtime) = 0;
1703 LTIME_S(inode->i_atime) = 0;
1704 LTIME_S(inode->i_ctime) = 0;
1706 ll_update_inode(inode, md);
1708 /* OIDEBUG(inode); */
1710 /* initializing backing dev info. */
1711 inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
1714 if (S_ISREG(inode->i_mode)) {
1715 struct ll_sb_info *sbi = ll_i2sbi(inode);
1716 inode->i_op = &ll_file_inode_operations;
1717 inode->i_fop = sbi->ll_fop;
1718 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
1720 } else if (S_ISDIR(inode->i_mode)) {
1721 inode->i_op = &ll_dir_inode_operations;
1722 inode->i_fop = &ll_dir_operations;
1723 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_dir_aops;
1725 } else if (S_ISLNK(inode->i_mode)) {
1726 inode->i_op = &ll_fast_symlink_inode_operations;
1729 inode->i_op = &ll_special_inode_operations;
1731 init_special_inode(inode, inode->i_mode,
1732 kdev_t_to_nr(inode->i_rdev));
1738 void ll_delete_inode(struct inode *inode)
1740 struct ll_sb_info *sbi = ll_i2sbi(inode);
1744 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1746 CERROR("fid_delete() failed, rc %d\n", rc);
1748 truncate_inode_pages(&inode->i_data, 0);
1750 /* Workaround for LU-118 */
1751 if (inode->i_data.nrpages) {
1752 TREE_READ_LOCK_IRQ(&inode->i_data);
1753 TREE_READ_UNLOCK_IRQ(&inode->i_data);
1754 LASSERTF(inode->i_data.nrpages == 0,
1755 "inode=%lu/%u(%p) nrpages=%lu, see "
1756 "http://jira.whamcloud.com/browse/LU-118\n",
1757 inode->i_ino, inode->i_generation, inode,
1758 inode->i_data.nrpages);
1760 /* Workaround end */
1767 int ll_iocontrol(struct inode *inode, struct file *file,
1768 unsigned int cmd, unsigned long arg)
1770 struct ll_sb_info *sbi = ll_i2sbi(inode);
1771 struct ptlrpc_request *req = NULL;
1776 case FSFILT_IOC_GETFLAGS: {
1777 struct mdt_body *body;
1778 struct md_op_data *op_data;
1780 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
1781 0, 0, LUSTRE_OPC_ANY,
1783 if (op_data == NULL)
1786 op_data->op_valid = OBD_MD_FLFLAGS;
1787 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
1788 ll_finish_md_op_data(op_data);
1790 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1794 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1796 flags = body->flags;
1798 ptlrpc_req_finished(req);
1800 RETURN(put_user(flags, (int *)arg));
1802 case FSFILT_IOC_SETFLAGS: {
1803 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1804 struct obd_info oinfo = { { { 0 } } };
1805 struct md_op_data *op_data;
1807 if (get_user(flags, (int *)arg))
1811 OBDO_ALLOC(oinfo.oi_oa);
1815 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1816 LUSTRE_OPC_ANY, NULL);
1817 if (IS_ERR(op_data))
1818 RETURN(PTR_ERR(op_data));
1820 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1821 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1822 rc = md_setattr(sbi->ll_md_exp, op_data,
1823 NULL, 0, NULL, 0, &req, NULL);
1824 ll_finish_md_op_data(op_data);
1825 ptlrpc_req_finished(req);
1827 OBDO_FREE(oinfo.oi_oa);
1832 OBDO_FREE(oinfo.oi_oa);
1833 GOTO(update_cache, rc);
1836 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1837 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
1838 oinfo.oi_oa->o_flags = flags;
1839 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1841 oinfo.oi_capa = ll_mdscapa_get(inode);
1842 obdo_from_inode(oinfo.oi_oa, inode,
1843 &ll_i2info(inode)->lli_fid, 0);
1844 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1845 capa_put(oinfo.oi_capa);
1846 OBDO_FREE(oinfo.oi_oa);
1848 if (rc != -EPERM && rc != -EACCES)
1849 CERROR("osc_setattr_async fails: rc = %d\n",rc);
1855 inode->i_flags = ll_ext_to_inode_flags(flags);
1865 int ll_flush_ctx(struct inode *inode)
1867 struct ll_sb_info *sbi = ll_i2sbi(inode);
1869 CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
1871 obd_set_info_async(sbi->ll_md_exp,
1872 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1874 obd_set_info_async(sbi->ll_dt_exp,
1875 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1880 /* umount -f client means force down, don't save state */
1881 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1882 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1884 struct super_block *sb = vfsmnt->mnt_sb;
1886 void ll_umount_begin(struct super_block *sb)
1889 struct lustre_sb_info *lsi = s2lsi(sb);
1890 struct ll_sb_info *sbi = ll_s2sbi(sb);
1891 struct obd_device *obd;
1892 struct obd_ioctl_data *ioc_data;
1895 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1896 if (!(flags & MNT_FORCE)) {
1902 /* Tell the MGC we got umount -f */
1903 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1905 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1906 sb->s_count, atomic_read(&sb->s_active));
1908 obd = class_exp2obd(sbi->ll_md_exp);
1910 CERROR("Invalid MDC connection handle "LPX64"\n",
1911 sbi->ll_md_exp->exp_handle.h_cookie);
1917 obd = class_exp2obd(sbi->ll_dt_exp);
1919 CERROR("Invalid LOV connection handle "LPX64"\n",
1920 sbi->ll_dt_exp->exp_handle.h_cookie);
1926 OBD_ALLOC_PTR(ioc_data);
1928 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
1929 sizeof ioc_data, ioc_data, NULL);
1931 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
1932 sizeof ioc_data, ioc_data, NULL);
1934 OBD_FREE_PTR(ioc_data);
1938 /* Really, we'd like to wait until there are no requests outstanding,
1939 * and then continue. For now, we just invalidate the requests,
1940 * schedule() and sleep one second if needed, and hope.
1943 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1944 if (atomic_read(&vfsmnt->mnt_count) > 2) {
1945 cfs_schedule_timeout_and_set_state(CFS_TASK_INTERRUPTIBLE,
1946 cfs_time_seconds(1));
1947 if (atomic_read(&vfsmnt->mnt_count) > 2)
1948 LCONSOLE_WARN("Mount still busy with %d refs! You "
1949 "may try to umount it a bit later\n",
1950 atomic_read(&vfsmnt->mnt_count));
1957 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1959 struct ll_sb_info *sbi = ll_s2sbi(sb);
1963 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
1964 read_only = *flags & MS_RDONLY;
1965 err = obd_set_info_async(sbi->ll_md_exp,
1966 sizeof(KEY_READ_ONLY),
1967 KEY_READ_ONLY, sizeof(read_only),
1970 CERROR("Failed to change the read-only flag during "
1971 "remount: %d\n", err);
1976 sb->s_flags |= MS_RDONLY;
1978 sb->s_flags &= ~MS_RDONLY;
1983 int ll_prep_inode(struct inode **inode,
1984 struct ptlrpc_request *req,
1985 struct super_block *sb)
1987 struct ll_sb_info *sbi = NULL;
1988 struct lustre_md md;
1992 LASSERT(*inode || sb);
1993 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
1994 memset(&md, 0, sizeof(struct lustre_md));
1996 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
1997 sbi->ll_md_exp, &md);
2002 ll_update_inode(*inode, &md);
2004 LASSERT(sb != NULL);
2007 * At this point server returns to client's same fid as client
2008 * generated for creating. So using ->fid1 is okay here.
2010 LASSERT(fid_is_sane(&md.body->fid1));
2012 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, 0), &md);
2013 if (*inode == NULL || IS_ERR(*inode)) {
2015 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2016 #ifdef CONFIG_FS_POSIX_ACL
2018 posix_acl_release(md.posix_acl);
2019 md.posix_acl = NULL;
2022 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
2024 CERROR("new_inode -fatal: rc %d\n", rc);
2030 md_free_lustre_md(sbi->ll_md_exp, &md);
2034 int ll_obd_statfs(struct inode *inode, void *arg)
2036 struct ll_sb_info *sbi = NULL;
2037 struct obd_export *exp;
2039 struct obd_ioctl_data *data = NULL;
2043 if (!inode || !(sbi = ll_i2sbi(inode)))
2044 GOTO(out_statfs, rc = -EINVAL);
2046 rc = obd_ioctl_getdata(&buf, &len, arg);
2048 GOTO(out_statfs, rc);
2051 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2052 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2053 GOTO(out_statfs, rc = -EINVAL);
2055 if (data->ioc_inllen1 != sizeof(__u32) ||
2056 data->ioc_inllen2 != sizeof(__u32) ||
2057 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2058 data->ioc_plen2 != sizeof(struct obd_uuid))
2059 GOTO(out_statfs, rc = -EINVAL);
2061 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2062 if (type == LL_STATFS_MDC)
2063 exp = sbi->ll_md_exp;
2064 else if (type == LL_STATFS_LOV)
2065 exp = sbi->ll_dt_exp;
2067 GOTO(out_statfs, rc = -ENODEV);
2069 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2071 GOTO(out_statfs, rc);
2074 obd_ioctl_freedata(buf, len);
2078 int ll_process_config(struct lustre_cfg *lcfg)
2082 struct lprocfs_static_vars lvars;
2086 lprocfs_llite_init_vars(&lvars);
2088 /* The instance name contains the sb: lustre-client-aacfe000 */
2089 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2090 if (!ptr || !*(++ptr))
2092 if (sscanf(ptr, "%lx", &x) != 1)
2095 /* This better be a real Lustre superblock! */
2096 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2098 /* Note we have not called client_common_fill_super yet, so
2099 proc fns must be able to handle that! */
2100 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2107 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2108 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2109 struct inode *i1, struct inode *i2,
2110 const char *name, int namelen,
2111 int mode, __u32 opc, void *data)
2113 LASSERT(i1 != NULL);
2115 if (namelen > ll_i2sbi(i1)->ll_namelen)
2116 return ERR_PTR(-ENAMETOOLONG);
2118 if (op_data == NULL)
2119 OBD_ALLOC_PTR(op_data);
2121 if (op_data == NULL)
2122 return ERR_PTR(-ENOMEM);
2124 ll_i2gids(op_data->op_suppgids, i1, i2);
2125 op_data->op_fid1 = *ll_inode2fid(i1);
2126 op_data->op_capa1 = ll_mdscapa_get(i1);
2129 op_data->op_fid2 = *ll_inode2fid(i2);
2130 op_data->op_capa2 = ll_mdscapa_get(i2);
2132 fid_zero(&op_data->op_fid2);
2133 op_data->op_capa2 = NULL;
2136 op_data->op_name = name;
2137 op_data->op_namelen = namelen;
2138 op_data->op_mode = mode;
2139 op_data->op_mod_time = cfs_time_current_sec();
2140 op_data->op_fsuid = cfs_curproc_fsuid();
2141 op_data->op_fsgid = cfs_curproc_fsgid();
2142 op_data->op_cap = cfs_curproc_cap_pack();
2143 op_data->op_bias = MDS_CHECK_SPLIT;
2144 op_data->op_opc = opc;
2145 op_data->op_mds = 0;
2146 op_data->op_data = data;
2148 /* If the file is being opened after mknod() (normally due to NFS)
2149 * try to use the default stripe data from parent directory for
2150 * allocating OST objects. Try to pass the parent FID to MDS. */
2151 if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
2152 ll_i2info(i2)->lli_smd == NULL) {
2153 struct ll_inode_info *lli = ll_i2info(i2);
2155 cfs_spin_lock(&lli->lli_lock);
2156 if (likely(lli->lli_smd == NULL &&
2157 !fid_is_zero(&lli->lli_pfid)))
2158 op_data->op_fid1 = lli->lli_pfid;
2159 cfs_spin_unlock(&lli->lli_lock);
2160 /** We ignore parent's capability temporary. */
2166 void ll_finish_md_op_data(struct md_op_data *op_data)
2168 capa_put(op_data->op_capa1);
2169 capa_put(op_data->op_capa2);
2170 OBD_FREE_PTR(op_data);
2173 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2175 struct ll_sb_info *sbi;
2177 LASSERT((seq != NULL) && (vfs != NULL));
2178 sbi = ll_s2sbi(vfs->mnt_sb);
2180 if (sbi->ll_flags & LL_SBI_NOLCK)
2181 seq_puts(seq, ",nolock");
2183 if (sbi->ll_flags & LL_SBI_FLOCK)
2184 seq_puts(seq, ",flock");
2186 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2187 seq_puts(seq, ",localflock");
2189 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2190 seq_puts(seq, ",user_xattr");
2192 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2193 seq_puts(seq, ",lazystatfs");