1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/llite/llite_lib.c
38 * Lustre Light Super operations
41 #define DEBUG_SUBSYSTEM S_LLITE
43 #include <linux/module.h>
44 #include <linux/types.h>
45 #include <linux/version.h>
48 #include <lustre_lite.h>
49 #include <lustre_ha.h>
50 #include <lustre_dlm.h>
51 #include <lprocfs_status.h>
52 #include <lustre_disk.h>
53 #include <lustre_param.h>
54 #include <lustre_log.h>
55 #include <cl_object.h>
56 #include <obd_cksum.h>
57 #include "llite_internal.h"
59 cfs_mem_cache_t *ll_file_data_slab;
61 CFS_LIST_HEAD(ll_super_blocks);
62 cfs_spinlock_t ll_sb_lock = CFS_SPIN_LOCK_UNLOCKED;
64 #ifndef MS_HAS_NEW_AOPS
65 extern struct address_space_operations ll_aops;
66 extern struct address_space_operations ll_dir_aops;
68 extern struct address_space_operations_ext ll_aops;
69 extern struct address_space_operations_ext ll_dir_aops;
73 #define log2(n) cfs_ffz(~(n))
76 static struct ll_sb_info *ll_init_sbi(void)
78 struct ll_sb_info *sbi = NULL;
85 OBD_ALLOC(sbi, sizeof(*sbi));
89 cfs_spin_lock_init(&sbi->ll_lock);
90 cfs_init_mutex(&sbi->ll_lco.lco_lock);
91 cfs_spin_lock_init(&sbi->ll_pp_extent_lock);
92 cfs_spin_lock_init(&sbi->ll_process_lock);
93 sbi->ll_rw_stats_on = 0;
96 pages = si.totalram - si.totalhigh;
97 if (pages >> (20 - CFS_PAGE_SHIFT) < 512) {
98 #ifdef HAVE_BGL_SUPPORT
99 sbi->ll_async_page_max = pages / 4;
101 sbi->ll_async_page_max = pages / 2;
104 sbi->ll_async_page_max = (pages / 4) * 3;
107 sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32,
108 SBI_DEFAULT_READAHEAD_MAX);
109 sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file;
110 sbi->ll_ra_info.ra_max_read_ahead_whole_pages =
111 SBI_DEFAULT_READAHEAD_WHOLE_MAX;
112 CFS_INIT_LIST_HEAD(&sbi->ll_conn_chain);
113 CFS_INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
115 ll_generate_random_uuid(uuid);
116 class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
117 CDEBUG(D_CONFIG, "generated uuid: %s\n", sbi->ll_sb_uuid.uuid);
119 cfs_spin_lock(&ll_sb_lock);
120 cfs_list_add_tail(&sbi->ll_list, &ll_super_blocks);
121 cfs_spin_unlock(&ll_sb_lock);
123 #ifdef ENABLE_CHECKSUM
124 sbi->ll_flags |= LL_SBI_CHECKSUM;
127 #ifdef HAVE_LRU_RESIZE_SUPPORT
128 sbi->ll_flags |= LL_SBI_LRU_RESIZE;
131 for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
132 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
134 cfs_spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i]. \
138 /* metadata statahead is enabled by default */
139 sbi->ll_sa_max = LL_SA_RPC_DEF;
140 atomic_set(&sbi->ll_sa_total, 0);
141 atomic_set(&sbi->ll_sa_wrong, 0);
146 void ll_free_sbi(struct super_block *sb)
148 struct ll_sb_info *sbi = ll_s2sbi(sb);
152 cfs_spin_lock(&ll_sb_lock);
153 cfs_list_del(&sbi->ll_list);
154 cfs_spin_unlock(&ll_sb_lock);
155 OBD_FREE(sbi, sizeof(*sbi));
160 static struct dentry_operations ll_d_root_ops = {
161 .d_compare = ll_dcompare,
162 .d_revalidate = ll_revalidate_nd,
165 static int client_common_fill_super(struct super_block *sb, char *md, char *dt)
167 struct inode *root = 0;
168 struct ll_sb_info *sbi = ll_s2sbi(sb);
169 struct obd_device *obd;
170 struct obd_capa *oc = NULL;
171 struct obd_statfs osfs;
172 struct ptlrpc_request *request = NULL;
173 struct obd_connect_data *data = NULL;
174 struct obd_uuid *uuid;
175 struct md_op_data *op_data;
176 struct lustre_md lmd;
178 int size, err, checksum;
181 obd = class_name2obd(md);
183 CERROR("MD %s: not setup or attached\n", md);
191 if (proc_lustre_fs_root) {
192 err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
195 CERROR("could not register mount in /proc/fs/lustre\n");
198 /* indicate the features supported by this client */
199 data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH |
200 OBD_CONNECT_JOIN | OBD_CONNECT_ATTRFID |
201 OBD_CONNECT_VERSION | OBD_CONNECT_MDS_CAPA |
202 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_CANCELSET|
203 OBD_CONNECT_FID | OBD_CONNECT_AT |
204 OBD_CONNECT_LOV_V3 | OBD_CONNECT_RMT_CLIENT |
205 OBD_CONNECT_VBR | OBD_CONNECT_FULL20 |
206 OBD_CONNECT_64BITHASH;
208 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
209 data->ocd_connect_flags |= OBD_CONNECT_SOM;
211 #ifdef HAVE_LRU_RESIZE_SUPPORT
212 if (sbi->ll_flags & LL_SBI_LRU_RESIZE)
213 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
215 #ifdef CONFIG_FS_POSIX_ACL
216 data->ocd_connect_flags |= OBD_CONNECT_ACL;
218 data->ocd_ibits_known = MDS_INODELOCK_FULL;
219 data->ocd_version = LUSTRE_VERSION_CODE;
221 if (sb->s_flags & MS_RDONLY)
222 data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
223 if (sbi->ll_flags & LL_SBI_USER_XATTR)
224 data->ocd_connect_flags |= OBD_CONNECT_XATTR;
226 #ifdef HAVE_MS_FLOCK_LOCK
227 /* force vfs to use lustre handler for flock() calls - bug 10743 */
228 sb->s_flags |= MS_FLOCK_LOCK;
230 #ifdef MS_HAS_NEW_AOPS
231 sb->s_flags |= MS_HAS_NEW_AOPS;
234 if (sbi->ll_flags & LL_SBI_FLOCK)
235 sbi->ll_fop = &ll_file_operations_flock;
236 else if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
237 sbi->ll_fop = &ll_file_operations;
239 sbi->ll_fop = &ll_file_operations_noflock;
242 data->ocd_connect_flags |= OBD_CONNECT_REAL;
243 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
244 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
246 err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid, data, NULL);
248 LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing "
249 "recovery, of which this client is not a "
250 "part. Please wait for recovery to complete,"
251 " abort, or time out.\n", md);
254 CERROR("cannot connect to %s: rc = %d\n", md, err);
258 err = obd_fid_init(sbi->ll_md_exp);
260 CERROR("Can't init metadata layer FID infrastructure, "
265 err = obd_statfs(obd, &osfs,
266 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0);
268 GOTO(out_md_fid, err);
270 size = sizeof(*data);
271 err = obd_get_info(sbi->ll_md_exp, sizeof(KEY_CONN_DATA),
272 KEY_CONN_DATA, &size, data, NULL);
274 CERROR("Get connect data failed: %d \n", err);
278 LASSERT(osfs.os_bsize);
279 sb->s_blocksize = osfs.os_bsize;
280 sb->s_blocksize_bits = log2(osfs.os_bsize);
281 sb->s_magic = LL_SUPER_MAGIC;
283 /* for bug 11559. in $LINUX/fs/read_write.c, function do_sendfile():
284 * retval = in_file->f_op->sendfile(...);
286 * retval = -EOVERFLOW;
288 * it will check if *ppos is greater than max. However, max equals to
289 * s_maxbytes, which is a negative integer in a x86_64 box since loff_t
290 * has been defined as a signed long long integer in linux kernel. */
291 #if BITS_PER_LONG == 64
292 sb->s_maxbytes = PAGE_CACHE_MAXBYTES >> 1;
294 sb->s_maxbytes = PAGE_CACHE_MAXBYTES;
296 sbi->ll_namelen = osfs.os_namelen;
297 sbi->ll_max_rw_chunk = LL_DEFAULT_MAX_RW_CHUNK;
299 if ((sbi->ll_flags & LL_SBI_USER_XATTR) &&
300 !(data->ocd_connect_flags & OBD_CONNECT_XATTR)) {
301 LCONSOLE_INFO("Disabling user_xattr feature because "
302 "it is not supported on the server\n");
303 sbi->ll_flags &= ~LL_SBI_USER_XATTR;
306 if (data->ocd_connect_flags & OBD_CONNECT_ACL) {
308 sb->s_flags |= MS_POSIXACL;
310 sbi->ll_flags |= LL_SBI_ACL;
312 LCONSOLE_INFO("client wants to enable acl, but mdt not!\n");
314 sb->s_flags &= ~MS_POSIXACL;
316 sbi->ll_flags &= ~LL_SBI_ACL;
319 if (data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) {
320 if (!(sbi->ll_flags & LL_SBI_RMT_CLIENT)) {
321 sbi->ll_flags |= LL_SBI_RMT_CLIENT;
322 LCONSOLE_INFO("client is set as remote by default.\n");
325 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
326 sbi->ll_flags &= ~LL_SBI_RMT_CLIENT;
327 LCONSOLE_INFO("client claims to be remote, but server "
328 "rejected, forced to be local.\n");
332 if (data->ocd_connect_flags & OBD_CONNECT_MDS_CAPA) {
333 LCONSOLE_INFO("client enabled MDS capability!\n");
334 sbi->ll_flags |= LL_SBI_MDS_CAPA;
337 if (data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA) {
338 LCONSOLE_INFO("client enabled OSS capability!\n");
339 sbi->ll_flags |= LL_SBI_OSS_CAPA;
342 if (data->ocd_connect_flags & OBD_CONNECT_64BITHASH)
343 sbi->ll_flags |= LL_SBI_64BIT_HASH;
345 obd = class_name2obd(dt);
347 CERROR("DT %s: not setup or attached\n", dt);
348 GOTO(out_md_fid, err = -ENODEV);
351 data->ocd_connect_flags = OBD_CONNECT_GRANT | OBD_CONNECT_VERSION |
352 OBD_CONNECT_REQPORTAL | OBD_CONNECT_BRW_SIZE |
353 OBD_CONNECT_CANCELSET | OBD_CONNECT_FID |
354 OBD_CONNECT_SRVLOCK | OBD_CONNECT_TRUNCLOCK|
355 OBD_CONNECT_AT | OBD_CONNECT_RMT_CLIENT |
356 OBD_CONNECT_OSS_CAPA | OBD_CONNECT_VBR|
359 if (sbi->ll_flags & LL_SBI_SOM_PREVIEW)
360 data->ocd_connect_flags |= OBD_CONNECT_SOM;
362 if (!OBD_FAIL_CHECK(OBD_FAIL_OSC_CONNECT_CKSUM)) {
363 /* OBD_CONNECT_CKSUM should always be set, even if checksums are
364 * disabled by default, because it can still be enabled on the
365 * fly via /proc. As a consequence, we still need to come to an
366 * agreement on the supported algorithms at connect time */
367 data->ocd_connect_flags |= OBD_CONNECT_CKSUM;
369 if (OBD_FAIL_CHECK(OBD_FAIL_OSC_CKSUM_ADLER_ONLY))
370 data->ocd_cksum_types = OBD_CKSUM_ADLER;
372 /* send the list of supported checksum types */
373 data->ocd_cksum_types = OBD_CKSUM_ALL;
376 #ifdef HAVE_LRU_RESIZE_SUPPORT
377 data->ocd_connect_flags |= OBD_CONNECT_LRU_RESIZE;
379 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
380 data->ocd_connect_flags |= OBD_CONNECT_RMT_CLIENT_FORCE;
382 CDEBUG(D_RPCTRACE, "ocd_connect_flags: "LPX64" ocd_version: %d "
383 "ocd_grant: %d\n", data->ocd_connect_flags,
384 data->ocd_version, data->ocd_grant);
386 obd->obd_upcall.onu_owner = &sbi->ll_lco;
387 obd->obd_upcall.onu_upcall = cl_ocd_update;
388 data->ocd_brw_size = PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT;
390 err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data, NULL);
392 LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing "
393 "recovery, of which this client is not a "
394 "part. Please wait for recovery to "
395 "complete, abort, or time out.\n", dt);
396 GOTO(out_md_fid, err);
398 CERROR("Cannot connect to %s: rc = %d\n", dt, err);
399 GOTO(out_md_fid, err);
402 err = obd_fid_init(sbi->ll_dt_exp);
404 CERROR("Can't init data layer FID infrastructure, "
409 cfs_mutex_down(&sbi->ll_lco.lco_lock);
410 sbi->ll_lco.lco_flags = data->ocd_connect_flags;
411 sbi->ll_lco.lco_md_exp = sbi->ll_md_exp;
412 sbi->ll_lco.lco_dt_exp = sbi->ll_dt_exp;
413 cfs_mutex_up(&sbi->ll_lco.lco_lock);
415 fid_zero(&sbi->ll_root_fid);
416 err = md_getstatus(sbi->ll_md_exp, &sbi->ll_root_fid, &oc);
418 CERROR("cannot mds_connect: rc = %d\n", err);
419 GOTO(out_lock_cn_cb, err);
421 if (!fid_is_sane(&sbi->ll_root_fid)) {
422 CERROR("Invalid root fid during mount\n");
423 GOTO(out_lock_cn_cb, err = -EINVAL);
425 CDEBUG(D_SUPER, "rootfid "DFID"\n", PFID(&sbi->ll_root_fid));
427 sb->s_op = &lustre_super_operations;
428 #if THREAD_SIZE >= 8192
429 sb->s_export_op = &lustre_export_operations;
433 * XXX: move this to after cbd setup? */
434 valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMDSCAPA;
435 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
436 valid |= OBD_MD_FLRMTPERM;
437 else if (sbi->ll_flags & LL_SBI_ACL)
438 valid |= OBD_MD_FLACL;
440 OBD_ALLOC_PTR(op_data);
442 GOTO(out_lock_cn_cb, err = -ENOMEM);
444 op_data->op_fid1 = sbi->ll_root_fid;
445 op_data->op_mode = 0;
446 op_data->op_capa1 = oc;
447 op_data->op_valid = valid;
449 err = md_getattr(sbi->ll_md_exp, op_data, &request);
452 OBD_FREE_PTR(op_data);
454 CERROR("md_getattr failed for root: rc = %d\n", err);
455 GOTO(out_lock_cn_cb, err);
457 memset(&lmd, 0, sizeof(lmd));
458 err = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
459 sbi->ll_md_exp, &lmd);
461 CERROR("failed to understand root inode md: rc = %d\n", err);
462 ptlrpc_req_finished (request);
463 GOTO(out_lock_cn_cb, err);
466 LASSERT(fid_is_sane(&sbi->ll_root_fid));
467 root = ll_iget(sb, cl_fid_build_ino(&sbi->ll_root_fid, 0), &lmd);
468 md_free_lustre_md(sbi->ll_md_exp, &lmd);
469 ptlrpc_req_finished(request);
471 if (root == NULL || IS_ERR(root)) {
473 obd_free_memmd(sbi->ll_dt_exp, &lmd.lsm);
474 #ifdef CONFIG_FS_POSIX_ACL
476 posix_acl_release(lmd.posix_acl);
477 lmd.posix_acl = NULL;
480 err = IS_ERR(root) ? PTR_ERR(root) : -EBADF;
482 CERROR("lustre_lite: bad iget4 for root\n");
486 err = ll_close_thread_start(&sbi->ll_lcq);
488 CERROR("cannot start close thread: rc %d\n", err);
492 #ifdef CONFIG_FS_POSIX_ACL
493 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
494 rct_init(&sbi->ll_rct);
495 et_init(&sbi->ll_et);
499 checksum = sbi->ll_flags & LL_SBI_CHECKSUM;
500 err = obd_set_info_async(sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
501 KEY_CHECKSUM, sizeof(checksum), &checksum,
505 sb->s_root = d_alloc_root(root);
507 OBD_FREE(data, sizeof(*data));
509 sb->s_root->d_op = &ll_d_root_ops;
511 sbi->ll_sdev_orig = sb->s_dev;
513 /* We set sb->s_dev equal on all lustre clients in order to support
514 * NFS export clustering. NFSD requires that the FSID be the same
516 /* s_dev is also used in lt_compare() to compare two fs, but that is
517 * only a node-local comparison. */
518 uuid = obd_get_uuid(sbi->ll_md_exp);
520 sb->s_dev = get_uuid2int(uuid->uuid, strlen(uuid->uuid));
527 obd_fid_fini(sbi->ll_dt_exp);
529 obd_disconnect(sbi->ll_dt_exp);
530 sbi->ll_dt_exp = NULL;
532 obd_fid_fini(sbi->ll_md_exp);
534 obd_disconnect(sbi->ll_md_exp);
535 sbi->ll_md_exp = NULL;
539 lprocfs_unregister_mountpoint(sbi);
543 int ll_get_max_mdsize(struct ll_sb_info *sbi, int *lmmsize)
547 *lmmsize = obd_size_diskmd(sbi->ll_dt_exp, NULL);
549 rc = obd_get_info(sbi->ll_md_exp, sizeof(KEY_MAX_EASIZE),
550 KEY_MAX_EASIZE, &size, lmmsize, NULL);
552 CERROR("Get max mdsize error rc %d \n", rc);
557 void ll_dump_inode(struct inode *inode)
559 struct list_head *tmp;
560 int dentry_count = 0;
562 LASSERT(inode != NULL);
564 list_for_each(tmp, &inode->i_dentry)
567 CERROR("inode %p dump: dev=%s ino=%lu mode=%o count=%u, %d dentries\n",
568 inode, ll_i2mdexp(inode)->exp_obd->obd_name, inode->i_ino,
569 inode->i_mode, atomic_read(&inode->i_count), dentry_count);
572 void lustre_dump_dentry(struct dentry *dentry, int recur)
574 struct list_head *tmp;
577 LASSERT(dentry != NULL);
579 list_for_each(tmp, &dentry->d_subdirs)
582 CERROR("dentry %p dump: name=%.*s parent=%.*s (%p), inode=%p, count=%u,"
583 " flags=0x%x, fsdata=%p, %d subdirs\n", dentry,
584 dentry->d_name.len, dentry->d_name.name,
585 dentry->d_parent->d_name.len, dentry->d_parent->d_name.name,
586 dentry->d_parent, dentry->d_inode, atomic_read(&dentry->d_count),
587 dentry->d_flags, dentry->d_fsdata, subdirs);
588 if (dentry->d_inode != NULL)
589 ll_dump_inode(dentry->d_inode);
594 list_for_each(tmp, &dentry->d_subdirs) {
595 struct dentry *d = list_entry(tmp, struct dentry, d_child);
596 lustre_dump_dentry(d, recur - 1);
600 void client_common_put_super(struct super_block *sb)
602 struct ll_sb_info *sbi = ll_s2sbi(sb);
605 #ifdef CONFIG_FS_POSIX_ACL
606 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
607 et_fini(&sbi->ll_et);
608 rct_fini(&sbi->ll_rct);
612 obd_cancel_unused(sbi->ll_dt_exp, NULL, 0, NULL);
614 ll_close_thread_shutdown(sbi->ll_lcq);
618 cfs_list_del(&sbi->ll_conn_chain);
620 obd_fid_fini(sbi->ll_dt_exp);
621 obd_disconnect(sbi->ll_dt_exp);
622 sbi->ll_dt_exp = NULL;
624 lprocfs_unregister_mountpoint(sbi);
626 obd_fid_fini(sbi->ll_md_exp);
627 obd_disconnect(sbi->ll_md_exp);
628 sbi->ll_md_exp = NULL;
633 void ll_kill_super(struct super_block *sb)
635 struct ll_sb_info *sbi;
640 if (!(sb->s_flags & MS_ACTIVE))
644 /* we need restore s_dev from changed for clustred NFS before put_super
645 * because new kernels have cached s_dev and change sb->s_dev in
646 * put_super not affected real removing devices */
648 sb->s_dev = sbi->ll_sdev_orig;
652 char *ll_read_opt(const char *opt, char *data)
658 CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
659 if (strncmp(opt, data, strlen(opt)))
661 if ((value = strchr(data, '=')) == NULL)
665 OBD_ALLOC(retval, strlen(value) + 1);
667 CERROR("out of memory!\n");
671 memcpy(retval, value, strlen(value)+1);
672 CDEBUG(D_SUPER, "Assigned option: %s, value %s\n", opt, retval);
676 static inline int ll_set_opt(const char *opt, char *data, int fl)
678 if (strncmp(opt, data, strlen(opt)) != 0)
684 /* non-client-specific mount options are parsed in lmd_parse */
685 static int ll_options(char *options, int *flags)
688 char *s1 = options, *s2;
694 CDEBUG(D_CONFIG, "Parsing opts %s\n", options);
697 CDEBUG(D_SUPER, "next opt=%s\n", s1);
698 tmp = ll_set_opt("nolock", s1, LL_SBI_NOLCK);
703 tmp = ll_set_opt("flock", s1, LL_SBI_FLOCK);
708 tmp = ll_set_opt("localflock", s1, LL_SBI_LOCALFLOCK);
713 tmp = ll_set_opt("noflock", s1, LL_SBI_FLOCK|LL_SBI_LOCALFLOCK);
718 tmp = ll_set_opt("user_xattr", s1, LL_SBI_USER_XATTR);
723 tmp = ll_set_opt("nouser_xattr", s1, LL_SBI_USER_XATTR);
728 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,5,50,0)
729 tmp = ll_set_opt("acl", s1, LL_SBI_ACL);
731 /* Ignore deprecated mount option. The client will
732 * always try to mount with ACL support, whether this
733 * is used depends on whether server supports it. */
734 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
735 "mount option 'acl'.\n");
738 tmp = ll_set_opt("noacl", s1, LL_SBI_ACL);
740 LCONSOLE_ERROR_MSG(0x152, "Ignoring deprecated "
741 "mount option 'noacl'.\n");
745 #warning "{no}acl options have been deprecated since 1.8, please remove them"
747 tmp = ll_set_opt("remote_client", s1, LL_SBI_RMT_CLIENT);
753 tmp = ll_set_opt("checksum", s1, LL_SBI_CHECKSUM);
758 tmp = ll_set_opt("nochecksum", s1, LL_SBI_CHECKSUM);
763 tmp = ll_set_opt("lruresize", s1, LL_SBI_LRU_RESIZE);
768 tmp = ll_set_opt("nolruresize", s1, LL_SBI_LRU_RESIZE);
773 tmp = ll_set_opt("lazystatfs", s1, LL_SBI_LAZYSTATFS);
778 tmp = ll_set_opt("nolazystatfs", s1, LL_SBI_LAZYSTATFS);
783 tmp = ll_set_opt("som_preview", s1, LL_SBI_SOM_PREVIEW);
788 tmp = ll_set_opt("32bitapi", s1, LL_SBI_32BIT_API);
794 LCONSOLE_ERROR_MSG(0x152, "Unknown option '%s', won't mount.\n",
800 s2 = strchr(s1, ',');
808 void ll_lli_init(struct ll_inode_info *lli)
810 lli->lli_inode_magic = LLI_INODE_MAGIC;
811 cfs_sema_init(&lli->lli_size_sem, 1);
812 cfs_sema_init(&lli->lli_write_sem, 1);
813 cfs_init_rwsem(&lli->lli_trunc_sem);
815 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
816 cfs_spin_lock_init(&lli->lli_lock);
817 CFS_INIT_LIST_HEAD(&lli->lli_close_list);
818 lli->lli_inode_magic = LLI_INODE_MAGIC;
819 cfs_sema_init(&lli->lli_och_sem, 1);
820 lli->lli_mds_read_och = lli->lli_mds_write_och = NULL;
821 lli->lli_mds_exec_och = NULL;
822 lli->lli_open_fd_read_count = lli->lli_open_fd_write_count = 0;
823 lli->lli_open_fd_exec_count = 0;
824 CFS_INIT_LIST_HEAD(&lli->lli_dead_list);
825 lli->lli_remote_perms = NULL;
826 lli->lli_rmtperm_utime = 0;
827 cfs_sema_init(&lli->lli_rmtperm_sem, 1);
828 CFS_INIT_LIST_HEAD(&lli->lli_oss_capas);
829 cfs_spin_lock_init(&lli->lli_sa_lock);
830 cfs_sema_init(&lli->lli_readdir_sem, 1);
831 fid_zero(&lli->lli_pfid);
834 static inline int ll_bdi_register(struct backing_dev_info *bdi)
836 #ifdef HAVE_BDI_REGISTER
837 static atomic_t ll_bdi_num = ATOMIC_INIT(0);
839 bdi->name = "lustre";
840 return bdi_register(bdi, NULL, "lustre-%d",
841 atomic_inc_return(&ll_bdi_num));
847 int ll_fill_super(struct super_block *sb)
849 struct lustre_profile *lprof;
850 struct lustre_sb_info *lsi = s2lsi(sb);
851 struct ll_sb_info *sbi;
852 char *dt = NULL, *md = NULL;
853 char *profilenm = get_profile_name(sb);
854 struct config_llog_instance cfg = {0, };
855 char ll_instance[sizeof(sb) * 2 + 1];
859 CDEBUG(D_VFSTRACE, "VFS Op: sb %p\n", sb);
863 /* client additional sb info */
864 lsi->lsi_llsbi = sbi = ll_init_sbi();
866 cfs_module_put(THIS_MODULE);
870 err = ll_options(lsi->lsi_lmd->lmd_opts, &sbi->ll_flags);
874 err = ll_bdi_init(&lsi->lsi_bdi);
877 lsi->lsi_flags |= LSI_BDI_INITIALIZED;
878 lsi->lsi_bdi.capabilities = BDI_CAP_MAP_COPY;
879 err = ll_bdi_register(&lsi->lsi_bdi);
884 sb->s_bdi = &lsi->lsi_bdi;
887 /* Generate a string unique to this super, in case some joker tries
888 to mount the same fs at two mount points.
889 Use the address of the super itself.*/
890 sprintf(ll_instance, "%p", sb);
891 cfg.cfg_instance = ll_instance;
892 cfg.cfg_uuid = lsi->lsi_llsbi->ll_sb_uuid;
894 /* set up client obds */
895 err = lustre_process_log(sb, profilenm, &cfg);
897 CERROR("Unable to process log: %d\n", err);
901 /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
902 lprof = class_get_profile(profilenm);
904 LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be"
905 " read from the MGS. Does that filesystem "
906 "exist?\n", profilenm);
907 GOTO(out_free, err = -EINVAL);
909 CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
910 lprof->lp_md, lprof->lp_dt);
912 OBD_ALLOC(dt, strlen(lprof->lp_dt) +
913 strlen(ll_instance) + 2);
915 GOTO(out_free, err = -ENOMEM);
916 sprintf(dt, "%s-%s", lprof->lp_dt, ll_instance);
918 OBD_ALLOC(md, strlen(lprof->lp_md) +
919 strlen(ll_instance) + 2);
921 GOTO(out_free, err = -ENOMEM);
922 sprintf(md, "%s-%s", lprof->lp_md, ll_instance);
924 /* connections, registrations, sb setup */
925 err = client_common_fill_super(sb, md, dt);
929 OBD_FREE(md, strlen(md) + 1);
931 OBD_FREE(dt, strlen(dt) + 1);
935 LCONSOLE_WARN("Client %s has started\n", profilenm);
938 } /* ll_fill_super */
941 void lu_context_keys_dump(void);
943 void ll_put_super(struct super_block *sb)
945 struct config_llog_instance cfg;
946 char ll_instance[sizeof(sb) * 2 + 1];
947 struct obd_device *obd;
948 struct lustre_sb_info *lsi = s2lsi(sb);
949 struct ll_sb_info *sbi = ll_s2sbi(sb);
950 char *profilenm = get_profile_name(sb);
954 CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm);
956 ll_print_capa_stat(sbi);
958 sprintf(ll_instance, "%p", sb);
959 cfg.cfg_instance = ll_instance;
960 lustre_end_log(sb, NULL, &cfg);
962 if (sbi->ll_md_exp) {
963 obd = class_exp2obd(sbi->ll_md_exp);
965 force = obd->obd_force;
968 /* We need to set force before the lov_disconnect in
969 lustre_common_put_super, since l_d cleans up osc's as well. */
972 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid,
974 obd->obd_force = force;
979 /* Only if client_common_fill_super succeeded */
980 client_common_put_super(sb);
984 while ((obd = class_devices_in_group(&sbi->ll_sb_uuid, &next)) !=NULL) {
985 class_manual_cleanup(obd);
989 class_del_profile(profilenm);
991 if (lsi->lsi_flags & LSI_BDI_INITIALIZED) {
992 ll_bdi_destroy(&lsi->lsi_bdi);
993 lsi->lsi_flags &= ~LSI_BDI_INITIALIZED;
997 lsi->lsi_llsbi = NULL;
999 lustre_common_put_super(sb);
1001 cl_env_cache_purge(~0);
1003 LCONSOLE_WARN("client %s umount complete\n", ll_instance);
1005 cfs_module_put(THIS_MODULE);
1008 } /* client_put_super */
1010 struct inode *ll_inode_from_lock(struct ldlm_lock *lock)
1012 struct inode *inode = NULL;
1013 /* NOTE: we depend on atomic igrab() -bzzz */
1014 lock_res_and_lock(lock);
1015 if (lock->l_ast_data) {
1016 struct ll_inode_info *lli = ll_i2info(lock->l_ast_data);
1017 if (lli->lli_inode_magic == LLI_INODE_MAGIC) {
1018 inode = igrab(lock->l_ast_data);
1020 inode = lock->l_ast_data;
1021 LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ? D_INFO :
1022 D_WARNING, lock, "l_ast_data %p is "
1023 "bogus: magic %08x", lock->l_ast_data,
1024 lli->lli_inode_magic);
1028 unlock_res_and_lock(lock);
1032 static int null_if_equal(struct ldlm_lock *lock, void *data)
1034 if (data == lock->l_ast_data) {
1035 lock->l_ast_data = NULL;
1037 if (lock->l_req_mode != lock->l_granted_mode)
1038 LDLM_ERROR(lock,"clearing inode with ungranted lock");
1041 return LDLM_ITER_CONTINUE;
1044 void ll_clear_inode(struct inode *inode)
1046 struct ll_inode_info *lli = ll_i2info(inode);
1047 struct ll_sb_info *sbi = ll_i2sbi(inode);
1050 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino,
1051 inode->i_generation, inode);
1053 if (S_ISDIR(inode->i_mode)) {
1054 /* these should have been cleared in ll_file_release */
1055 LASSERT(lli->lli_sai == NULL);
1056 LASSERT(lli->lli_opendir_key == NULL);
1057 LASSERT(lli->lli_opendir_pid == 0);
1060 ll_i2info(inode)->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
1061 md_change_cbdata(sbi->ll_md_exp, ll_inode2fid(inode),
1062 null_if_equal, inode);
1064 LASSERT(!lli->lli_open_fd_write_count);
1065 LASSERT(!lli->lli_open_fd_read_count);
1066 LASSERT(!lli->lli_open_fd_exec_count);
1068 if (lli->lli_mds_write_och)
1069 ll_md_real_close(inode, FMODE_WRITE);
1070 if (lli->lli_mds_exec_och)
1071 ll_md_real_close(inode, FMODE_EXEC);
1072 if (lli->lli_mds_read_och)
1073 ll_md_real_close(inode, FMODE_READ);
1075 if (lli->lli_symlink_name) {
1076 OBD_FREE(lli->lli_symlink_name,
1077 strlen(lli->lli_symlink_name) + 1);
1078 lli->lli_symlink_name = NULL;
1081 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1082 LASSERT(lli->lli_posix_acl == NULL);
1083 if (lli->lli_remote_perms) {
1084 free_rmtperm_hash(lli->lli_remote_perms);
1085 lli->lli_remote_perms = NULL;
1088 #ifdef CONFIG_FS_POSIX_ACL
1089 else if (lli->lli_posix_acl) {
1090 LASSERT(cfs_atomic_read(&lli->lli_posix_acl->a_refcount) == 1);
1091 LASSERT(lli->lli_remote_perms == NULL);
1092 posix_acl_release(lli->lli_posix_acl);
1093 lli->lli_posix_acl = NULL;
1096 lli->lli_inode_magic = LLI_INODE_DEAD;
1098 ll_clear_inode_capas(inode);
1100 * XXX This has to be done before lsm is freed below, because
1101 * cl_object still uses inode lsm.
1103 cl_inode_fini(inode);
1106 obd_free_memmd(sbi->ll_dt_exp, &lli->lli_smd);
1107 lli->lli_smd = NULL;
1114 int ll_md_setattr(struct inode *inode, struct md_op_data *op_data,
1115 struct md_open_data **mod)
1117 struct lustre_md md;
1118 struct ll_sb_info *sbi = ll_i2sbi(inode);
1119 struct ptlrpc_request *request = NULL;
1123 op_data = ll_prep_md_op_data(op_data, inode, NULL, NULL, 0, 0,
1124 LUSTRE_OPC_ANY, NULL);
1125 if (IS_ERR(op_data))
1126 RETURN(PTR_ERR(op_data));
1128 rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0,
1131 ptlrpc_req_finished(request);
1132 if (rc == -ENOENT) {
1134 /* Unlinked special device node? Or just a race?
1135 * Pretend we done everything. */
1136 if (!S_ISREG(inode->i_mode) &&
1137 !S_ISDIR(inode->i_mode))
1138 rc = inode_setattr(inode, &op_data->op_attr);
1139 } else if (rc != -EPERM && rc != -EACCES && rc != -ETXTBSY) {
1140 CERROR("md_setattr fails: rc = %d\n", rc);
1145 rc = md_get_lustre_md(sbi->ll_md_exp, request, sbi->ll_dt_exp,
1146 sbi->ll_md_exp, &md);
1148 ptlrpc_req_finished(request);
1152 /* We call inode_setattr to adjust timestamps.
1153 * If there is at least some data in file, we cleared ATTR_SIZE
1154 * above to avoid invoking vmtruncate, otherwise it is important
1155 * to call vmtruncate in inode_setattr to update inode->i_size
1157 rc = inode_setattr(inode, &op_data->op_attr);
1159 /* Extract epoch data if obtained. */
1160 op_data->op_handle = md.body->handle;
1161 op_data->op_ioepoch = md.body->ioepoch;
1163 ll_update_inode(inode, &md);
1164 ptlrpc_req_finished(request);
1169 /* Close IO epoch and send Size-on-MDS attribute update. */
1170 static int ll_setattr_done_writing(struct inode *inode,
1171 struct md_op_data *op_data,
1172 struct md_open_data *mod)
1174 struct ll_inode_info *lli = ll_i2info(inode);
1178 LASSERT(op_data != NULL);
1179 if (!S_ISREG(inode->i_mode))
1182 CDEBUG(D_INODE, "Epoch "LPU64" closed on "DFID" for truncate\n",
1183 op_data->op_ioepoch, PFID(&lli->lli_fid));
1185 op_data->op_flags = MF_EPOCH_CLOSE;
1186 ll_done_writing_attr(inode, op_data);
1187 ll_pack_inode2opdata(inode, op_data, NULL);
1189 rc = md_done_writing(ll_i2sbi(inode)->ll_md_exp, op_data, mod);
1190 if (rc == -EAGAIN) {
1191 /* MDS has instructed us to obtain Size-on-MDS attribute
1192 * from OSTs and send setattr to back to MDS. */
1193 rc = ll_som_update(inode, op_data);
1195 CERROR("inode %lu mdc truncate failed: rc = %d\n",
1201 static int ll_setattr_ost(struct inode *inode, struct iattr *attr)
1203 struct obd_capa *capa;
1206 if (attr->ia_valid & ATTR_SIZE)
1207 capa = ll_osscapa_get(inode, CAPA_OPC_OSS_TRUNC);
1209 capa = ll_mdscapa_get(inode);
1211 rc = cl_setattr_ost(inode, attr, capa);
1213 if (attr->ia_valid & ATTR_SIZE)
1214 ll_truncate_free_capa(capa);
1221 /* If this inode has objects allocated to it (lsm != NULL), then the OST
1222 * object(s) determine the file size and mtime. Otherwise, the MDS will
1223 * keep these values until such a time that objects are allocated for it.
1224 * We do the MDS operations first, as it is checking permissions for us.
1225 * We don't to the MDS RPC if there is nothing that we want to store there,
1226 * otherwise there is no harm in updating mtime/atime on the MDS if we are
1227 * going to do an RPC anyways.
1229 * If we are doing a truncate, we will send the mtime and ctime updates
1230 * to the OST with the punch RPC, otherwise we do an explicit setattr RPC.
1231 * I don't believe it is possible to get e.g. ATTR_MTIME_SET and ATTR_SIZE
1234 int ll_setattr_raw(struct inode *inode, struct iattr *attr)
1236 struct ll_inode_info *lli = ll_i2info(inode);
1237 struct lov_stripe_md *lsm = lli->lli_smd;
1238 struct md_op_data *op_data = NULL;
1239 struct md_open_data *mod = NULL;
1240 int ia_valid = attr->ia_valid;
1241 int rc = 0, rc1 = 0;
1244 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu valid %x\n", inode->i_ino,
1246 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETATTR, 1);
1248 if (ia_valid & ATTR_SIZE) {
1249 if (attr->ia_size > ll_file_maxbytes(inode)) {
1250 CDEBUG(D_INODE, "file too large %llu > "LPU64"\n",
1251 attr->ia_size, ll_file_maxbytes(inode));
1255 attr->ia_valid |= ATTR_MTIME | ATTR_CTIME;
1258 /* POSIX: check before ATTR_*TIME_SET set (from inode_change_ok) */
1259 if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
1260 if (cfs_curproc_fsuid() != inode->i_uid &&
1261 !cfs_capable(CFS_CAP_FOWNER))
1265 /* We mark all of the fields "set" so MDS/OST does not re-set them */
1266 if (attr->ia_valid & ATTR_CTIME) {
1267 attr->ia_ctime = CFS_CURRENT_TIME;
1268 attr->ia_valid |= ATTR_CTIME_SET;
1270 if (!(ia_valid & ATTR_ATIME_SET) && (attr->ia_valid & ATTR_ATIME)) {
1271 attr->ia_atime = CFS_CURRENT_TIME;
1272 attr->ia_valid |= ATTR_ATIME_SET;
1274 if (!(ia_valid & ATTR_MTIME_SET) && (attr->ia_valid & ATTR_MTIME)) {
1275 attr->ia_mtime = CFS_CURRENT_TIME;
1276 attr->ia_valid |= ATTR_MTIME_SET;
1279 if (attr->ia_valid & (ATTR_MTIME | ATTR_CTIME))
1280 CDEBUG(D_INODE, "setting mtime %lu, ctime %lu, now = %lu\n",
1281 LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime),
1282 cfs_time_current_sec());
1284 /* NB: ATTR_SIZE will only be set after this point if the size
1285 * resides on the MDS, ie, this file has no objects. */
1287 attr->ia_valid &= ~ATTR_SIZE;
1289 /* We always do an MDS RPC, even if we're only changing the size;
1290 * only the MDS knows whether truncate() should fail with -ETXTBUSY */
1292 OBD_ALLOC_PTR(op_data);
1293 if (op_data == NULL)
1296 UNLOCK_INODE_MUTEX(inode);
1297 if (ia_valid & ATTR_SIZE)
1298 UP_WRITE_I_ALLOC_SEM(inode);
1299 cfs_down_write(&lli->lli_trunc_sem);
1300 LOCK_INODE_MUTEX(inode);
1301 if (ia_valid & ATTR_SIZE)
1302 DOWN_WRITE_I_ALLOC_SEM(inode);
1304 memcpy(&op_data->op_attr, attr, sizeof(*attr));
1306 /* Open epoch for truncate. */
1307 if (exp_connect_som(ll_i2mdexp(inode)) &&
1308 (ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET)))
1309 op_data->op_flags = MF_EPOCH_OPEN;
1311 rc = ll_md_setattr(inode, op_data, &mod);
1315 ll_ioepoch_open(lli, op_data->op_ioepoch);
1316 if (!lsm || !S_ISREG(inode->i_mode)) {
1317 CDEBUG(D_INODE, "no lsm: not setting attrs on OST\n");
1321 if (ia_valid & ATTR_SIZE)
1322 attr->ia_valid |= ATTR_SIZE;
1323 if (ia_valid & (ATTR_SIZE |
1324 ATTR_ATIME | ATTR_ATIME_SET |
1325 ATTR_MTIME | ATTR_MTIME_SET))
1326 /* on truncate and utimes send attributes to osts, setting
1327 * mtime/atime to past will be performed under PW 0:EOF extent
1328 * lock (new_size:EOF for truncate)
1329 * it may seem excessive to send mtime/atime updates to osts
1330 * when not setting times to past, but it is necessary due to
1331 * possible time de-synchronization */
1332 rc = ll_setattr_ost(inode, attr);
1336 if (op_data->op_ioepoch)
1337 rc1 = ll_setattr_done_writing(inode, op_data, mod);
1338 ll_finish_md_op_data(op_data);
1340 cfs_up_write(&lli->lli_trunc_sem);
1341 return rc ? rc : rc1;
1344 int ll_setattr(struct dentry *de, struct iattr *attr)
1346 int mode = de->d_inode->i_mode;
1348 if ((attr->ia_valid & (ATTR_CTIME|ATTR_SIZE|ATTR_MODE)) ==
1349 (ATTR_CTIME|ATTR_SIZE|ATTR_MODE))
1350 attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE;
1352 if (((attr->ia_valid & (ATTR_MODE|ATTR_FORCE|ATTR_SIZE)) ==
1353 (ATTR_SIZE|ATTR_MODE)) &&
1354 (((mode & S_ISUID) && !(attr->ia_mode & S_ISUID)) ||
1355 (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1356 !(attr->ia_mode & S_ISGID))))
1357 attr->ia_valid |= ATTR_FORCE;
1359 if ((mode & S_ISUID) &&
1360 !(attr->ia_mode & S_ISUID) &&
1361 !(attr->ia_valid & ATTR_KILL_SUID))
1362 attr->ia_valid |= ATTR_KILL_SUID;
1364 if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) &&
1365 !(attr->ia_mode & S_ISGID) &&
1366 !(attr->ia_valid & ATTR_KILL_SGID))
1367 attr->ia_valid |= ATTR_KILL_SGID;
1369 return ll_setattr_raw(de->d_inode, attr);
1372 int ll_statfs_internal(struct super_block *sb, struct obd_statfs *osfs,
1373 __u64 max_age, __u32 flags)
1375 struct ll_sb_info *sbi = ll_s2sbi(sb);
1376 struct obd_statfs obd_osfs;
1380 rc = obd_statfs(class_exp2obd(sbi->ll_md_exp), osfs, max_age, flags);
1382 CERROR("md_statfs fails: rc = %d\n", rc);
1386 osfs->os_type = sb->s_magic;
1388 CDEBUG(D_SUPER, "MDC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1389 osfs->os_bavail, osfs->os_blocks, osfs->os_ffree,osfs->os_files);
1391 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
1392 flags |= OBD_STATFS_NODELAY;
1394 rc = obd_statfs_rqset(class_exp2obd(sbi->ll_dt_exp),
1395 &obd_osfs, max_age, flags);
1397 CERROR("obd_statfs fails: rc = %d\n", rc);
1401 CDEBUG(D_SUPER, "OSC blocks "LPU64"/"LPU64" objects "LPU64"/"LPU64"\n",
1402 obd_osfs.os_bavail, obd_osfs.os_blocks, obd_osfs.os_ffree,
1405 osfs->os_bsize = obd_osfs.os_bsize;
1406 osfs->os_blocks = obd_osfs.os_blocks;
1407 osfs->os_bfree = obd_osfs.os_bfree;
1408 osfs->os_bavail = obd_osfs.os_bavail;
1410 /* If we don't have as many objects free on the OST as inodes
1411 * on the MDS, we reduce the total number of inodes to
1412 * compensate, so that the "inodes in use" number is correct.
1414 if (obd_osfs.os_ffree < osfs->os_ffree) {
1415 osfs->os_files = (osfs->os_files - osfs->os_ffree) +
1417 osfs->os_ffree = obd_osfs.os_ffree;
1422 #ifndef HAVE_STATFS_DENTRY_PARAM
1423 int ll_statfs(struct super_block *sb, struct kstatfs *sfs)
1426 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
1428 struct super_block *sb = de->d_sb;
1430 struct obd_statfs osfs;
1433 CDEBUG(D_VFSTRACE, "VFS Op: at "LPU64" jiffies\n", get_jiffies_64());
1434 ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STAFS, 1);
1436 /* Some amount of caching on the client is allowed */
1437 rc = ll_statfs_internal(sb, &osfs,
1438 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
1443 statfs_unpack(sfs, &osfs);
1445 /* We need to downshift for all 32-bit kernels, because we can't
1446 * tell if the kernel is being called via sys_statfs64() or not.
1447 * Stop before overflowing f_bsize - in which case it is better
1448 * to just risk EOVERFLOW if caller is using old sys_statfs(). */
1449 if (sizeof(long) < 8) {
1450 while (osfs.os_blocks > ~0UL && sfs->f_bsize < 0x40000000) {
1453 osfs.os_blocks >>= 1;
1454 osfs.os_bfree >>= 1;
1455 osfs.os_bavail >>= 1;
1459 sfs->f_blocks = osfs.os_blocks;
1460 sfs->f_bfree = osfs.os_bfree;
1461 sfs->f_bavail = osfs.os_bavail;
1466 void ll_inode_size_lock(struct inode *inode, int lock_lsm)
1468 struct ll_inode_info *lli;
1469 struct lov_stripe_md *lsm;
1471 lli = ll_i2info(inode);
1472 LASSERT(lli->lli_size_sem_owner != current);
1473 cfs_down(&lli->lli_size_sem);
1474 LASSERT(lli->lli_size_sem_owner == NULL);
1475 lli->lli_size_sem_owner = current;
1477 LASSERTF(lsm != NULL || lock_lsm == 0, "lsm %p, lock_lsm %d\n",
1480 lov_stripe_lock(lsm);
1483 void ll_inode_size_unlock(struct inode *inode, int unlock_lsm)
1485 struct ll_inode_info *lli;
1486 struct lov_stripe_md *lsm;
1488 lli = ll_i2info(inode);
1490 LASSERTF(lsm != NULL || unlock_lsm == 0, "lsm %p, lock_lsm %d\n",
1493 lov_stripe_unlock(lsm);
1494 LASSERT(lli->lli_size_sem_owner == current);
1495 lli->lli_size_sem_owner = NULL;
1496 cfs_up(&lli->lli_size_sem);
1499 void ll_update_inode(struct inode *inode, struct lustre_md *md)
1501 struct ll_inode_info *lli = ll_i2info(inode);
1502 struct mdt_body *body = md->body;
1503 struct lov_stripe_md *lsm = md->lsm;
1504 struct ll_sb_info *sbi = ll_i2sbi(inode);
1506 LASSERT ((lsm != NULL) == ((body->valid & OBD_MD_FLEASIZE) != 0));
1508 cfs_down(&lli->lli_och_sem);
1509 if (lli->lli_smd == NULL) {
1510 if (lsm->lsm_magic != LOV_MAGIC_V1 &&
1511 lsm->lsm_magic != LOV_MAGIC_V3) {
1512 dump_lsm(D_ERROR, lsm);
1515 CDEBUG(D_INODE, "adding lsm %p to inode %lu/%u(%p)\n",
1516 lsm, inode->i_ino, inode->i_generation, inode);
1517 /* cl_inode_init must go before lli_smd or a race is
1518 * possible where client thinks the file has stripes,
1519 * but lov raid0 is not setup yet and parallel e.g.
1520 * glimpse would try to use uninitialized lov */
1521 cl_inode_init(inode, md);
1522 cfs_spin_lock(&lli->lli_lock);
1524 cfs_spin_unlock(&lli->lli_lock);
1525 cfs_up(&lli->lli_och_sem);
1526 lli->lli_maxbytes = lsm->lsm_maxbytes;
1527 if (lli->lli_maxbytes > PAGE_CACHE_MAXBYTES)
1528 lli->lli_maxbytes = PAGE_CACHE_MAXBYTES;
1530 cfs_up(&lli->lli_och_sem);
1531 LASSERT(lli->lli_smd->lsm_magic == lsm->lsm_magic &&
1532 lli->lli_smd->lsm_stripe_count ==
1533 lsm->lsm_stripe_count);
1534 if (lov_stripe_md_cmp(lli->lli_smd, lsm)) {
1535 CERROR("lsm mismatch for inode %ld\n",
1537 CERROR("lli_smd:\n");
1538 dump_lsm(D_ERROR, lli->lli_smd);
1540 dump_lsm(D_ERROR, lsm);
1544 if (lli->lli_smd != lsm)
1545 obd_free_memmd(ll_i2dtexp(inode), &lsm);
1548 if (sbi->ll_flags & LL_SBI_RMT_CLIENT) {
1549 if (body->valid & OBD_MD_FLRMTPERM)
1550 ll_update_remote_perm(inode, md->remote_perm);
1552 #ifdef CONFIG_FS_POSIX_ACL
1553 else if (body->valid & OBD_MD_FLACL) {
1554 cfs_spin_lock(&lli->lli_lock);
1555 if (lli->lli_posix_acl)
1556 posix_acl_release(lli->lli_posix_acl);
1557 lli->lli_posix_acl = md->posix_acl;
1558 cfs_spin_unlock(&lli->lli_lock);
1561 inode->i_ino = cl_fid_build_ino(&body->fid1, 0);
1562 inode->i_generation = cl_fid_build_gen(&body->fid1);
1564 if (body->valid & OBD_MD_FLATIME) {
1565 if (body->atime > LTIME_S(inode->i_atime))
1566 LTIME_S(inode->i_atime) = body->atime;
1567 lli->lli_lvb.lvb_atime = body->atime;
1569 if (body->valid & OBD_MD_FLMTIME) {
1570 if (body->mtime > LTIME_S(inode->i_mtime)) {
1571 CDEBUG(D_INODE, "setting ino %lu mtime from %lu "
1572 "to "LPU64"\n", inode->i_ino,
1573 LTIME_S(inode->i_mtime), body->mtime);
1574 LTIME_S(inode->i_mtime) = body->mtime;
1576 lli->lli_lvb.lvb_mtime = body->mtime;
1578 if (body->valid & OBD_MD_FLCTIME) {
1579 if (body->ctime > LTIME_S(inode->i_ctime))
1580 LTIME_S(inode->i_ctime) = body->ctime;
1581 lli->lli_lvb.lvb_ctime = body->ctime;
1583 if (body->valid & OBD_MD_FLMODE)
1584 inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
1585 if (body->valid & OBD_MD_FLTYPE)
1586 inode->i_mode = (inode->i_mode & ~S_IFMT)|(body->mode & S_IFMT);
1587 LASSERT(inode->i_mode != 0);
1588 if (S_ISREG(inode->i_mode)) {
1589 inode->i_blkbits = min(PTLRPC_MAX_BRW_BITS + 1, LL_MAX_BLKSIZE_BITS);
1591 inode->i_blkbits = inode->i_sb->s_blocksize_bits;
1593 #ifdef HAVE_INODE_BLKSIZE
1594 inode->i_blksize = 1<<inode->i_blkbits;
1596 if (body->valid & OBD_MD_FLUID)
1597 inode->i_uid = body->uid;
1598 if (body->valid & OBD_MD_FLGID)
1599 inode->i_gid = body->gid;
1600 if (body->valid & OBD_MD_FLFLAGS)
1601 inode->i_flags = ll_ext_to_inode_flags(body->flags);
1602 if (body->valid & OBD_MD_FLNLINK)
1603 inode->i_nlink = body->nlink;
1604 if (body->valid & OBD_MD_FLRDEV)
1605 inode->i_rdev = old_decode_dev(body->rdev);
1607 if (body->valid & OBD_MD_FLID) {
1608 /* FID shouldn't be changed! */
1609 if (fid_is_sane(&lli->lli_fid)) {
1610 LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1),
1611 "Trying to change FID "DFID
1612 " to the "DFID", inode %lu/%u(%p)\n",
1613 PFID(&lli->lli_fid), PFID(&body->fid1),
1614 inode->i_ino, inode->i_generation, inode);
1616 lli->lli_fid = body->fid1;
1619 LASSERT(fid_seq(&lli->lli_fid) != 0);
1621 if (body->valid & OBD_MD_FLSIZE) {
1622 if (exp_connect_som(ll_i2mdexp(inode)) &&
1623 S_ISREG(inode->i_mode) && lli->lli_smd) {
1624 struct lustre_handle lockh;
1627 /* As it is possible a blocking ast has been processed
1628 * by this time, we need to check there is an UPDATE
1629 * lock on the client and set LLIF_MDS_SIZE_LOCK holding
1631 mode = ll_take_md_lock(inode, MDS_INODELOCK_UPDATE,
1634 if (lli->lli_flags & (LLIF_DONE_WRITING |
1635 LLIF_EPOCH_PENDING |
1637 CERROR("ino %lu flags %lu still has "
1638 "size authority! do not trust "
1639 "the size got from MDS\n",
1640 inode->i_ino, lli->lli_flags);
1642 /* Use old size assignment to avoid
1643 * deadlock bz14138 & bz14326 */
1644 inode->i_size = body->size;
1645 lli->lli_flags |= LLIF_MDS_SIZE_LOCK;
1647 ldlm_lock_decref(&lockh, mode);
1650 /* Use old size assignment to avoid
1651 * deadlock bz14138 & bz14326 */
1652 inode->i_size = body->size;
1654 CDEBUG(D_VFSTRACE, "inode=%lu, updating i_size %llu\n",
1655 inode->i_ino, (unsigned long long)body->size);
1658 if (body->valid & OBD_MD_FLBLOCKS)
1659 inode->i_blocks = body->blocks;
1662 if (body->valid & OBD_MD_FLMDSCAPA) {
1663 LASSERT(md->mds_capa);
1664 ll_add_capa(inode, md->mds_capa);
1666 if (body->valid & OBD_MD_FLOSSCAPA) {
1667 LASSERT(md->oss_capa);
1668 ll_add_capa(inode, md->oss_capa);
1672 void ll_read_inode2(struct inode *inode, void *opaque)
1674 struct lustre_md *md = opaque;
1675 struct ll_inode_info *lli = ll_i2info(inode);
1678 CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n",
1679 inode->i_ino, inode->i_generation, inode);
1683 LASSERT(!lli->lli_smd);
1685 /* Core attributes from the MDS first. This is a new inode, and
1686 * the VFS doesn't zero times in the core inode so we have to do
1687 * it ourselves. They will be overwritten by either MDS or OST
1688 * attributes - we just need to make sure they aren't newer. */
1689 LTIME_S(inode->i_mtime) = 0;
1690 LTIME_S(inode->i_atime) = 0;
1691 LTIME_S(inode->i_ctime) = 0;
1693 ll_update_inode(inode, md);
1695 /* OIDEBUG(inode); */
1697 /* initializing backing dev info. */
1698 inode->i_mapping->backing_dev_info = &s2lsi(inode->i_sb)->lsi_bdi;
1701 if (S_ISREG(inode->i_mode)) {
1702 struct ll_sb_info *sbi = ll_i2sbi(inode);
1703 inode->i_op = &ll_file_inode_operations;
1704 inode->i_fop = sbi->ll_fop;
1705 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_aops;
1707 } else if (S_ISDIR(inode->i_mode)) {
1708 inode->i_op = &ll_dir_inode_operations;
1709 inode->i_fop = &ll_dir_operations;
1710 inode->i_mapping->a_ops = (struct address_space_operations *)&ll_dir_aops;
1712 } else if (S_ISLNK(inode->i_mode)) {
1713 inode->i_op = &ll_fast_symlink_inode_operations;
1716 inode->i_op = &ll_special_inode_operations;
1718 init_special_inode(inode, inode->i_mode,
1719 kdev_t_to_nr(inode->i_rdev));
1725 void ll_delete_inode(struct inode *inode)
1727 struct ll_sb_info *sbi = ll_i2sbi(inode);
1731 rc = obd_fid_delete(sbi->ll_md_exp, ll_inode2fid(inode));
1733 CERROR("fid_delete() failed, rc %d\n", rc);
1735 truncate_inode_pages(&inode->i_data, 0);
1737 /* Workaround for LU-118 */
1738 if (inode->i_data.nrpages) {
1739 TREE_READ_LOCK_IRQ(&inode->i_data);
1740 TREE_READ_UNLOCK_IRQ(&inode->i_data);
1741 LASSERTF(inode->i_data.nrpages == 0,
1742 "inode=%lu/%u(%p) nrpages=%lu, see "
1743 "http://jira.whamcloud.com/browse/LU-118\n",
1744 inode->i_ino, inode->i_generation, inode,
1745 inode->i_data.nrpages);
1747 /* Workaround end */
1754 int ll_iocontrol(struct inode *inode, struct file *file,
1755 unsigned int cmd, unsigned long arg)
1757 struct ll_sb_info *sbi = ll_i2sbi(inode);
1758 struct ptlrpc_request *req = NULL;
1763 case FSFILT_IOC_GETFLAGS: {
1764 struct mdt_body *body;
1765 struct md_op_data *op_data;
1767 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
1768 0, 0, LUSTRE_OPC_ANY,
1770 if (op_data == NULL)
1773 op_data->op_valid = OBD_MD_FLFLAGS;
1774 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
1775 ll_finish_md_op_data(op_data);
1777 CERROR("failure %d inode %lu\n", rc, inode->i_ino);
1781 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
1783 flags = body->flags;
1785 ptlrpc_req_finished(req);
1787 RETURN(put_user(flags, (int *)arg));
1789 case FSFILT_IOC_SETFLAGS: {
1790 struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
1791 struct obd_info oinfo = { { { 0 } } };
1792 struct md_op_data *op_data;
1794 if (get_user(flags, (int *)arg))
1798 OBDO_ALLOC(oinfo.oi_oa);
1802 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
1803 LUSTRE_OPC_ANY, NULL);
1804 if (IS_ERR(op_data))
1805 RETURN(PTR_ERR(op_data));
1807 ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags;
1808 op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG;
1809 rc = md_setattr(sbi->ll_md_exp, op_data,
1810 NULL, 0, NULL, 0, &req, NULL);
1811 ll_finish_md_op_data(op_data);
1812 ptlrpc_req_finished(req);
1814 OBDO_FREE(oinfo.oi_oa);
1819 OBDO_FREE(oinfo.oi_oa);
1820 GOTO(update_cache, rc);
1823 oinfo.oi_oa->o_id = lsm->lsm_object_id;
1824 oinfo.oi_oa->o_seq = lsm->lsm_object_seq;
1825 oinfo.oi_oa->o_flags = flags;
1826 oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS |
1828 oinfo.oi_capa = ll_mdscapa_get(inode);
1829 obdo_from_inode(oinfo.oi_oa, inode,
1830 &ll_i2info(inode)->lli_fid, 0);
1831 rc = obd_setattr_rqset(sbi->ll_dt_exp, &oinfo, NULL);
1832 capa_put(oinfo.oi_capa);
1833 OBDO_FREE(oinfo.oi_oa);
1835 if (rc != -EPERM && rc != -EACCES)
1836 CERROR("osc_setattr_async fails: rc = %d\n",rc);
1842 inode->i_flags = ll_ext_to_inode_flags(flags);
1852 int ll_flush_ctx(struct inode *inode)
1854 struct ll_sb_info *sbi = ll_i2sbi(inode);
1856 CDEBUG(D_SEC, "flush context for user %d\n", cfs_curproc_uid());
1858 obd_set_info_async(sbi->ll_md_exp,
1859 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1861 obd_set_info_async(sbi->ll_dt_exp,
1862 sizeof(KEY_FLUSH_CTX), KEY_FLUSH_CTX,
1867 /* umount -f client means force down, don't save state */
1868 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1869 void ll_umount_begin(struct vfsmount *vfsmnt, int flags)
1871 struct super_block *sb = vfsmnt->mnt_sb;
1873 void ll_umount_begin(struct super_block *sb)
1876 struct lustre_sb_info *lsi = s2lsi(sb);
1877 struct ll_sb_info *sbi = ll_s2sbi(sb);
1878 struct obd_device *obd;
1879 struct obd_ioctl_data *ioc_data;
1882 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1883 if (!(flags & MNT_FORCE)) {
1889 /* Tell the MGC we got umount -f */
1890 lsi->lsi_flags |= LSI_UMOUNT_FORCE;
1892 CDEBUG(D_VFSTRACE, "VFS Op: superblock %p count %d active %d\n", sb,
1893 sb->s_count, atomic_read(&sb->s_active));
1895 obd = class_exp2obd(sbi->ll_md_exp);
1897 CERROR("Invalid MDC connection handle "LPX64"\n",
1898 sbi->ll_md_exp->exp_handle.h_cookie);
1904 obd = class_exp2obd(sbi->ll_dt_exp);
1906 CERROR("Invalid LOV connection handle "LPX64"\n",
1907 sbi->ll_dt_exp->exp_handle.h_cookie);
1913 OBD_ALLOC_PTR(ioc_data);
1915 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
1916 sizeof ioc_data, ioc_data, NULL);
1918 obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
1919 sizeof ioc_data, ioc_data, NULL);
1921 OBD_FREE_PTR(ioc_data);
1925 /* Really, we'd like to wait until there are no requests outstanding,
1926 * and then continue. For now, we just invalidate the requests,
1927 * schedule() and sleep one second if needed, and hope.
1930 #ifdef HAVE_UMOUNTBEGIN_VFSMOUNT
1931 if (atomic_read(&vfsmnt->mnt_count) > 2) {
1932 cfs_schedule_timeout_and_set_state(CFS_TASK_INTERRUPTIBLE,
1933 cfs_time_seconds(1));
1934 if (atomic_read(&vfsmnt->mnt_count) > 2)
1935 LCONSOLE_WARN("Mount still busy with %d refs! You "
1936 "may try to umount it a bit later\n",
1937 atomic_read(&vfsmnt->mnt_count));
1944 int ll_remount_fs(struct super_block *sb, int *flags, char *data)
1946 struct ll_sb_info *sbi = ll_s2sbi(sb);
1950 if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
1951 read_only = *flags & MS_RDONLY;
1952 err = obd_set_info_async(sbi->ll_md_exp,
1953 sizeof(KEY_READ_ONLY),
1954 KEY_READ_ONLY, sizeof(read_only),
1957 CERROR("Failed to change the read-only flag during "
1958 "remount: %d\n", err);
1963 sb->s_flags |= MS_RDONLY;
1965 sb->s_flags &= ~MS_RDONLY;
1970 int ll_prep_inode(struct inode **inode,
1971 struct ptlrpc_request *req,
1972 struct super_block *sb)
1974 struct ll_sb_info *sbi = NULL;
1975 struct lustre_md md;
1979 LASSERT(*inode || sb);
1980 sbi = sb ? ll_s2sbi(sb) : ll_i2sbi(*inode);
1981 memset(&md, 0, sizeof(struct lustre_md));
1983 rc = md_get_lustre_md(sbi->ll_md_exp, req, sbi->ll_dt_exp,
1984 sbi->ll_md_exp, &md);
1989 ll_update_inode(*inode, &md);
1991 LASSERT(sb != NULL);
1994 * At this point server returns to client's same fid as client
1995 * generated for creating. So using ->fid1 is okay here.
1997 LASSERT(fid_is_sane(&md.body->fid1));
1999 *inode = ll_iget(sb, cl_fid_build_ino(&md.body->fid1, 0), &md);
2000 if (*inode == NULL || IS_ERR(*inode)) {
2002 obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
2003 #ifdef CONFIG_FS_POSIX_ACL
2005 posix_acl_release(md.posix_acl);
2006 md.posix_acl = NULL;
2009 rc = IS_ERR(*inode) ? PTR_ERR(*inode) : -ENOMEM;
2011 CERROR("new_inode -fatal: rc %d\n", rc);
2017 md_free_lustre_md(sbi->ll_md_exp, &md);
2021 int ll_obd_statfs(struct inode *inode, void *arg)
2023 struct ll_sb_info *sbi = NULL;
2024 struct obd_export *exp;
2026 struct obd_ioctl_data *data = NULL;
2030 if (!inode || !(sbi = ll_i2sbi(inode)))
2031 GOTO(out_statfs, rc = -EINVAL);
2033 rc = obd_ioctl_getdata(&buf, &len, arg);
2035 GOTO(out_statfs, rc);
2038 if (!data->ioc_inlbuf1 || !data->ioc_inlbuf2 ||
2039 !data->ioc_pbuf1 || !data->ioc_pbuf2)
2040 GOTO(out_statfs, rc = -EINVAL);
2042 if (data->ioc_inllen1 != sizeof(__u32) ||
2043 data->ioc_inllen2 != sizeof(__u32) ||
2044 data->ioc_plen1 != sizeof(struct obd_statfs) ||
2045 data->ioc_plen2 != sizeof(struct obd_uuid))
2046 GOTO(out_statfs, rc = -EINVAL);
2048 memcpy(&type, data->ioc_inlbuf1, sizeof(__u32));
2049 if (type == LL_STATFS_MDC)
2050 exp = sbi->ll_md_exp;
2051 else if (type == LL_STATFS_LOV)
2052 exp = sbi->ll_dt_exp;
2054 GOTO(out_statfs, rc = -ENODEV);
2056 rc = obd_iocontrol(IOC_OBD_STATFS, exp, len, buf, NULL);
2058 GOTO(out_statfs, rc);
2061 obd_ioctl_freedata(buf, len);
2065 int ll_process_config(struct lustre_cfg *lcfg)
2069 struct lprocfs_static_vars lvars;
2073 lprocfs_llite_init_vars(&lvars);
2075 /* The instance name contains the sb: lustre-client-aacfe000 */
2076 ptr = strrchr(lustre_cfg_string(lcfg, 0), '-');
2077 if (!ptr || !*(++ptr))
2079 if (sscanf(ptr, "%lx", &x) != 1)
2082 /* This better be a real Lustre superblock! */
2083 LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
2085 /* Note we have not called client_common_fill_super yet, so
2086 proc fns must be able to handle that! */
2087 rc = class_process_proc_param(PARAM_LLITE, lvars.obd_vars,
2094 /* this function prepares md_op_data hint for passing ot down to MD stack. */
2095 struct md_op_data * ll_prep_md_op_data(struct md_op_data *op_data,
2096 struct inode *i1, struct inode *i2,
2097 const char *name, int namelen,
2098 int mode, __u32 opc, void *data)
2100 LASSERT(i1 != NULL);
2102 if (namelen > ll_i2sbi(i1)->ll_namelen)
2103 return ERR_PTR(-ENAMETOOLONG);
2105 if (op_data == NULL)
2106 OBD_ALLOC_PTR(op_data);
2108 if (op_data == NULL)
2109 return ERR_PTR(-ENOMEM);
2111 ll_i2gids(op_data->op_suppgids, i1, i2);
2112 op_data->op_fid1 = *ll_inode2fid(i1);
2113 op_data->op_capa1 = ll_mdscapa_get(i1);
2116 op_data->op_fid2 = *ll_inode2fid(i2);
2117 op_data->op_capa2 = ll_mdscapa_get(i2);
2119 fid_zero(&op_data->op_fid2);
2120 op_data->op_capa2 = NULL;
2123 op_data->op_name = name;
2124 op_data->op_namelen = namelen;
2125 op_data->op_mode = mode;
2126 op_data->op_mod_time = cfs_time_current_sec();
2127 op_data->op_fsuid = cfs_curproc_fsuid();
2128 op_data->op_fsgid = cfs_curproc_fsgid();
2129 op_data->op_cap = cfs_curproc_cap_pack();
2130 op_data->op_bias = MDS_CHECK_SPLIT;
2131 op_data->op_opc = opc;
2132 op_data->op_mds = 0;
2133 op_data->op_data = data;
2135 /* If the file is being opened after mknod() (normally due to NFS)
2136 * try to use the default stripe data from parent directory for
2137 * allocating OST objects. Try to pass the parent FID to MDS. */
2138 if (opc == LUSTRE_OPC_CREATE && i1 == i2 && S_ISREG(i2->i_mode) &&
2139 ll_i2info(i2)->lli_smd == NULL) {
2140 struct ll_inode_info *lli = ll_i2info(i2);
2142 cfs_spin_lock(&lli->lli_lock);
2143 if (likely(lli->lli_smd == NULL &&
2144 !fid_is_zero(&lli->lli_pfid)))
2145 op_data->op_fid1 = lli->lli_pfid;
2146 cfs_spin_unlock(&lli->lli_lock);
2147 /** We ignore parent's capability temporary. */
2153 void ll_finish_md_op_data(struct md_op_data *op_data)
2155 capa_put(op_data->op_capa1);
2156 capa_put(op_data->op_capa2);
2157 OBD_FREE_PTR(op_data);
2160 int ll_show_options(struct seq_file *seq, struct vfsmount *vfs)
2162 struct ll_sb_info *sbi;
2164 LASSERT((seq != NULL) && (vfs != NULL));
2165 sbi = ll_s2sbi(vfs->mnt_sb);
2167 if (sbi->ll_flags & LL_SBI_NOLCK)
2168 seq_puts(seq, ",nolock");
2170 if (sbi->ll_flags & LL_SBI_FLOCK)
2171 seq_puts(seq, ",flock");
2173 if (sbi->ll_flags & LL_SBI_LOCALFLOCK)
2174 seq_puts(seq, ",localflock");
2176 if (sbi->ll_flags & LL_SBI_USER_XATTR)
2177 seq_puts(seq, ",user_xattr");
2179 if (sbi->ll_flags & LL_SBI_LAZYSTATFS)
2180 seq_puts(seq, ",lazystatfs");