4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/mdt/mdt_lproc.c
38 * Author: Lai Siyao <lsy@clusterfs.com>
39 * Author: Fan Yong <fanyong@clusterfs.com>
42 #define DEBUG_SUBSYSTEM S_MDS
44 #include <linux/version.h>
45 #include <asm/statfs.h>
47 #include <linux/module.h>
49 /* LUSTRE_VERSION_CODE */
50 #include <lustre_ver.h>
52 * struct OBD_{ALLOC,FREE}*()
55 #include <obd_support.h>
56 /* struct obd_export */
57 #include <lustre_export.h>
58 /* struct obd_device */
60 #include <obd_class.h>
61 #include <lustre_mds.h>
62 #include <lprocfs_status.h>
63 #include "mdt_internal.h"
64 #include <lnet/lib-lnet.h>
67 * The rename stats output would be YAML formats, like
69 * - snapshot_time: 1234567890.123456
71 * 4kB: { samples: 1230, pct: 33, cum_pct: 45 }
72 * 8kB: { samples: 1242, pct: 33, cum_pct: 78 }
73 * 16kB: { samples: 132, pct: 3, cum_pct: 81 }
75 * 4kB: { samples: 123, pct: 33, cum_pct: 45 }
76 * 8kB: { samples: 124, pct: 33, cum_pct: 78 }
77 * 16kB: { samples: 12, pct: 3, cum_pct: 81 }
79 * 4kB: { samples: 123, pct: 33, cum_pct: 45 }
80 * 8kB: { samples: 124, pct: 33, cum_pct: 78 }
81 * 16kB: { samples: 12, pct: 3, cum_pct: 81 }
84 #define pct(a, b) (b ? a * 100 / b : 0)
86 static void display_rename_stats(struct seq_file *seq, char *name,
87 struct obd_histogram *hist)
89 unsigned long tot, t, cum = 0;
92 tot = lprocfs_oh_sum(hist);
94 seq_printf(seq, "- %-15s\n", name);
95 /* dir size start from 4K, start i from 10(2^10) here */
96 for (i = 0; i < OBD_HIST_MAX; i++) {
97 t = hist->oh_buckets[i];
103 seq_printf(seq, "%6s%d%s", " ", 1<< i, "bytes:");
105 seq_printf(seq, "%6s%d%s", " ", 1<<(i-10), "KB:");
107 seq_printf(seq, "%6s%d%s", " ", 1<<(i-20), "MB:");
109 seq_printf(seq, " { sample: %3lu, pct: %3lu, cum_pct: %3lu }\n",
110 t, pct(t, tot), pct(cum, tot));
117 static void rename_stats_show(struct seq_file *seq,
118 struct rename_stats *rename_stats)
122 /* this sampling races with updates */
123 do_gettimeofday(&now);
124 seq_printf(seq, "rename_stats:\n");
125 seq_printf(seq, "- %-15s %lu.%lu\n", "snapshot_time:",
126 now.tv_sec, now.tv_usec);
128 display_rename_stats(seq, "same_dir",
129 &rename_stats->hist[RENAME_SAMEDIR_SIZE]);
130 display_rename_stats(seq, "crossdir_src",
131 &rename_stats->hist[RENAME_CROSSDIR_SRC_SIZE]);
132 display_rename_stats(seq, "crossdir_tgt",
133 &rename_stats->hist[RENAME_CROSSDIR_TGT_SIZE]);
138 static int mdt_rename_stats_seq_show(struct seq_file *seq, void *v)
140 struct mdt_device *mdt = seq->private;
142 rename_stats_show(seq, &mdt->mdt_rename_stats);
147 static ssize_t mdt_rename_stats_seq_write(struct file *file, const char *buf,
148 size_t len, loff_t *off)
150 struct seq_file *seq = file->private_data;
151 struct mdt_device *mdt = seq->private;
154 for (i = 0; i < RENAME_LAST; i++)
155 lprocfs_oh_clear(&mdt->mdt_rename_stats.hist[i]);
160 LPROC_SEQ_FOPS(mdt_rename_stats);
162 static int lproc_mdt_attach_rename_seqstat(struct mdt_device *mdt)
166 for (i = 0; i < RENAME_LAST; i++)
167 spin_lock_init(&mdt->mdt_rename_stats.hist[i].oh_lock);
169 return lprocfs_obd_seq_create(mdt2obd_dev(mdt), "rename_stats", 0644,
170 &mdt_rename_stats_fops, mdt);
173 void mdt_rename_counter_tally(struct mdt_thread_info *info,
174 struct mdt_device *mdt,
175 struct ptlrpc_request *req,
176 struct mdt_object *src,
177 struct mdt_object *tgt)
179 struct md_attr *ma = &info->mti_attr;
180 struct rename_stats *rstats = &mdt->mdt_rename_stats;
183 ma->ma_need = MA_INODE;
185 rc = mo_attr_get(info->mti_env, mdt_object_child(src), ma);
187 CERROR("%s: "DFID" attr_get, rc = %d\n",
188 mdt_obd_name(mdt), PFID(mdt_object_fid(src)), rc);
193 mdt_counter_incr(req, LPROC_MDT_SAMEDIR_RENAME);
194 lprocfs_oh_tally_log2(&rstats->hist[RENAME_SAMEDIR_SIZE],
195 (unsigned int)ma->ma_attr.la_size);
199 mdt_counter_incr(req, LPROC_MDT_CROSSDIR_RENAME);
200 lprocfs_oh_tally_log2(&rstats->hist[RENAME_CROSSDIR_SRC_SIZE],
201 (unsigned int)ma->ma_attr.la_size);
203 ma->ma_need = MA_INODE;
205 rc = mo_attr_get(info->mti_env, mdt_object_child(tgt), ma);
207 CERROR("%s: "DFID" attr_get, rc = %d\n",
208 mdt_obd_name(mdt), PFID(mdt_object_fid(tgt)), rc);
212 lprocfs_oh_tally_log2(&rstats->hist[RENAME_CROSSDIR_TGT_SIZE],
213 (unsigned int)ma->ma_attr.la_size);
216 int mdt_procfs_init(struct mdt_device *mdt, const char *name)
218 struct obd_device *obd = mdt2obd_dev(mdt);
219 struct lprocfs_static_vars lvars;
223 LASSERT(name != NULL);
225 lprocfs_mdt_init_vars(&lvars);
226 rc = lprocfs_obd_setup(obd, lvars.obd_vars);
228 CERROR("%s: cannot create proc entries: rc = %d\n",
229 mdt_obd_name(mdt), rc);
233 rc = hsm_cdt_procfs_init(mdt);
235 CERROR("%s: cannot create hsm proc entries: rc = %d\n",
236 mdt_obd_name(mdt), rc);
240 obd->obd_proc_exports_entry = proc_mkdir("exports",
241 obd->obd_proc_entry);
242 if (obd->obd_proc_exports_entry)
243 lprocfs_add_simple(obd->obd_proc_exports_entry,
244 "clear", lprocfs_nid_stats_clear_read,
245 lprocfs_nid_stats_clear_write, obd, NULL);
246 rc = lprocfs_alloc_md_stats(obd, LPROC_MDT_LAST);
249 mdt_stats_counter_init(obd->obd_md_stats);
251 rc = lprocfs_job_stats_init(obd, LPROC_MDT_LAST,
252 mdt_stats_counter_init);
254 rc = lproc_mdt_attach_rename_seqstat(mdt);
256 CERROR("%s: MDT can not create rename stats rc = %d\n",
257 mdt_obd_name(mdt), rc);
262 void mdt_procfs_fini(struct mdt_device *mdt)
264 struct obd_device *obd = mdt2obd_dev(mdt);
266 if (obd->obd_proc_exports_entry != NULL) {
267 lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry);
268 obd->obd_proc_exports_entry = NULL;
271 lprocfs_free_per_client_stats(obd);
272 hsm_cdt_procfs_fini(mdt);
273 lprocfs_obd_cleanup(obd);
274 lprocfs_free_md_stats(obd);
275 lprocfs_free_obd_stats(obd);
276 lprocfs_job_stats_fini(obd);
279 static int lprocfs_rd_identity_expire(char *page, char **start, off_t off,
280 int count, int *eof, void *data)
282 struct obd_device *obd = data;
283 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
286 return snprintf(page, count, "%u\n",
287 mdt->mdt_identity_cache->uc_entry_expire);
290 static int lprocfs_wr_identity_expire(struct file *file,
291 const char __user *buffer,
292 unsigned long count, void *data)
294 struct obd_device *obd = data;
295 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
298 rc = lprocfs_write_helper(buffer, count, &val);
302 mdt->mdt_identity_cache->uc_entry_expire = val;
306 static int lprocfs_rd_identity_acquire_expire(char *page, char **start,
307 off_t off, int count, int *eof,
310 struct obd_device *obd = data;
311 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
314 return snprintf(page, count, "%u\n",
315 mdt->mdt_identity_cache->uc_acquire_expire);
318 static int lprocfs_wr_identity_acquire_expire(struct file *file,
319 const char __user *buffer,
323 struct obd_device *obd = data;
324 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
327 rc = lprocfs_write_helper(buffer, count, &val);
331 mdt->mdt_identity_cache->uc_acquire_expire = val;
335 static int lprocfs_rd_identity_upcall(char *page, char **start, off_t off,
336 int count, int *eof, void *data)
338 struct obd_device *obd = data;
339 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
340 struct upcall_cache *hash = mdt->mdt_identity_cache;
344 read_lock(&hash->uc_upcall_rwlock);
345 len = snprintf(page, count, "%s\n", hash->uc_upcall);
346 read_unlock(&hash->uc_upcall_rwlock);
350 static int lprocfs_wr_identity_upcall(struct file *file,
351 const char __user *buffer,
352 unsigned long count, void *data)
354 struct obd_device *obd = data;
355 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
356 struct upcall_cache *hash = mdt->mdt_identity_cache;
360 if (count >= UC_CACHE_UPCALL_MAXPATH) {
361 CERROR("%s: identity upcall too long\n", mdt_obd_name(mdt));
364 OBD_ALLOC(kernbuf, count + 1);
366 GOTO(failed, rc = -ENOMEM);
367 if (copy_from_user(kernbuf, buffer, count))
368 GOTO(failed, rc = -EFAULT);
370 /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
371 write_lock(&hash->uc_upcall_rwlock);
372 sscanf(kernbuf, "%s", hash->uc_upcall);
373 write_unlock(&hash->uc_upcall_rwlock);
375 if (strcmp(hash->uc_name, mdt_obd_name(mdt)) != 0)
376 CWARN("%s: write to upcall name %s\n",
377 mdt_obd_name(mdt), hash->uc_upcall);
379 if (strcmp(hash->uc_upcall, "NONE") == 0 && mdt->mdt_opts.mo_acl)
380 CWARN("%s: disable \"identity_upcall\" with ACL enabled maybe "
381 "cause unexpected \"EACCESS\"\n", mdt_obd_name(mdt));
383 CDEBUG(D_CONFIG, "%s: identity upcall set to %s\n", mdt_obd_name(mdt),
385 OBD_FREE(kernbuf, count + 1);
390 OBD_FREE(kernbuf, count + 1);
394 static int lprocfs_wr_identity_flush(struct file *file,
395 const char __user *buffer,
396 unsigned long count, void *data)
398 struct obd_device *obd = data;
399 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
402 rc = lprocfs_write_helper(buffer, count, &uid);
406 mdt_flush_identity(mdt->mdt_identity_cache, uid);
410 static int lprocfs_wr_identity_info(struct file *file,
411 const char __user *buffer,
412 unsigned long count, void *data)
414 struct obd_device *obd = data;
415 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
416 struct identity_downcall_data *param;
417 int size = sizeof(*param), rc, checked = 0;
421 CERROR("%s: invalid data count = %lu, size = %d\n",
422 mdt_obd_name(mdt), count, size);
426 OBD_ALLOC(param, size);
430 if (copy_from_user(param, buffer, size)) {
431 CERROR("%s: bad identity data\n", mdt_obd_name(mdt));
432 GOTO(out, rc = -EFAULT);
437 if (param->idd_magic != IDENTITY_DOWNCALL_MAGIC) {
438 CERROR("%s: MDS identity downcall bad params\n",
440 GOTO(out, rc = -EINVAL);
443 if (param->idd_nperms > N_PERMS_MAX) {
444 CERROR("%s: perm count %d more than maximum %d\n",
445 mdt_obd_name(mdt), param->idd_nperms,
447 GOTO(out, rc = -EINVAL);
450 if (param->idd_ngroups > NGROUPS_MAX) {
451 CERROR("%s: group count %d more than maximum %d\n",
452 mdt_obd_name(mdt), param->idd_ngroups,
454 GOTO(out, rc = -EINVAL);
457 if (param->idd_ngroups) {
458 rc = param->idd_ngroups; /* save idd_ngroups */
459 OBD_FREE(param, size);
460 size = offsetof(struct identity_downcall_data,
466 rc = upcall_cache_downcall(mdt->mdt_identity_cache, param->idd_err,
467 param->idd_uid, param);
471 OBD_FREE(param, size);
473 return rc ? rc : count;
477 static int lprocfs_rd_capa(char *page, char **start, off_t off,
478 int count, int *eof, void *data)
480 struct obd_device *obd = data;
481 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
483 return snprintf(page, count, "capability on: %s %s\n",
484 mdt->mdt_lut.lut_oss_capa ? "oss" : "",
485 mdt->mdt_lut.lut_mds_capa ? "mds" : "");
488 static int lprocfs_wr_capa(struct file *file, const char __user *buffer,
489 unsigned long count, void *data)
491 struct obd_device *obd = data;
492 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
495 rc = lprocfs_write_helper(buffer, count, &val);
499 if (val < 0 || val > 3) {
500 CERROR("invalid capability mode, only 0/2/3 is accepted.\n"
501 " 0: disable fid capability\n"
502 " 2: enable MDS fid capability\n"
503 " 3: enable both MDS and OSS fid capability\n");
507 /* OSS fid capability needs enable both MDS and OSS fid capability on
510 CERROR("can't enable OSS fid capability only, you should use "
511 "'3' to enable both MDS and OSS fid capability.\n");
515 spin_lock(&mdt->mdt_lut.lut_flags_lock);
516 mdt->mdt_lut.lut_oss_capa = !!(val & 0x1);
517 mdt->mdt_lut.lut_mds_capa = !!(val & 0x2);
518 spin_unlock(&mdt->mdt_lut.lut_flags_lock);
519 mdt->mdt_capa_conf = 1;
520 LCONSOLE_INFO("MDS %s %s MDS fid capability.\n",
522 mdt->mdt_lut.lut_mds_capa ? "enabled" : "disabled");
523 LCONSOLE_INFO("MDS %s %s OSS fid capability.\n",
525 mdt->mdt_lut.lut_oss_capa ? "enabled" : "disabled");
529 static int lprocfs_rd_capa_count(char *page, char **start, off_t off,
530 int count, int *eof, void *data)
532 return snprintf(page, count, "%d %d\n",
533 capa_count[CAPA_SITE_CLIENT],
534 capa_count[CAPA_SITE_SERVER]);
537 static int lprocfs_rd_site_stats(char *page, char **start, off_t off,
538 int count, int *eof, void *data)
540 struct obd_device *obd = data;
541 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
543 return lu_site_stats_print(mdt_lu_site(mdt), page, count);
546 static int lprocfs_rd_capa_timeout(char *page, char **start, off_t off,
547 int count, int *eof, void *data)
549 struct obd_device *obd = data;
550 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
552 return snprintf(page, count, "%lu\n", mdt->mdt_capa_timeout);
555 static int lprocfs_wr_capa_timeout(struct file *file, const char __user *buffer,
556 unsigned long count, void *data)
558 struct obd_device *obd = data;
559 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
562 rc = lprocfs_write_helper(buffer, count, &val);
566 mdt->mdt_capa_timeout = (unsigned long)val;
567 mdt->mdt_capa_conf = 1;
571 static int lprocfs_rd_ck_timeout(char *page, char **start, off_t off, int count,
572 int *eof, void *data)
574 struct obd_device *obd = data;
575 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
577 return snprintf(page, count, "%lu\n", mdt->mdt_ck_timeout);
580 static int lprocfs_wr_ck_timeout(struct file *file, const char __user *buffer,
581 unsigned long count, void *data)
583 struct obd_device *obd = data;
584 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
587 rc = lprocfs_write_helper(buffer, count, &val);
591 mdt->mdt_ck_timeout = (unsigned long)val;
592 mdt->mdt_capa_conf = 1;
596 #define BUFLEN (UUID_MAX + 4)
598 static int lprocfs_mdt_wr_evict_client(struct file *file,
599 const char __user *buffer,
600 unsigned long count, void *data)
605 OBD_ALLOC(kbuf, BUFLEN);
610 * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
611 * bytes into kbuf, to ensure that the string is NUL-terminated.
612 * UUID_MAX should include a trailing NUL already.
614 if (copy_from_user(kbuf, buffer,
615 min_t(unsigned long, BUFLEN - 1, count))) {
619 tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
621 if (strncmp(tmpbuf, "nid:", 4) != 0) {
622 count = lprocfs_wr_evict_client(file, buffer, count, data);
626 CERROR("NOT implement evict client by nid %s\n", tmpbuf);
629 OBD_FREE(kbuf, BUFLEN);
635 static int lprocfs_rd_sec_level(char *page, char **start, off_t off,
636 int count, int *eof, void *data)
638 struct obd_device *obd = data;
639 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
641 return snprintf(page, count, "%d\n", mdt->mdt_lut.lut_sec_level);
644 static int lprocfs_wr_sec_level(struct file *file, const char __user *buffer,
645 unsigned long count, void *data)
647 struct obd_device *obd = data;
648 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
651 rc = lprocfs_write_helper(buffer, count, &val);
655 if (val > LUSTRE_SEC_ALL || val < LUSTRE_SEC_NONE)
658 if (val == LUSTRE_SEC_SPECIFY) {
659 CWARN("security level %d will be supported in future.\n",
664 mdt->mdt_lut.lut_sec_level = val;
668 static int lprocfs_rd_cos(char *page, char **start, off_t off,
669 int count, int *eof, void *data)
671 struct obd_device *obd = data;
672 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
674 return snprintf(page, count, "%u\n", mdt_cos_is_enabled(mdt));
677 static int lprocfs_wr_cos(struct file *file, const char __user *buffer,
678 unsigned long count, void *data)
680 struct obd_device *obd = data;
681 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
684 rc = lprocfs_write_helper(buffer, count, &val);
687 mdt_enable_cos(mdt, val);
691 static int lprocfs_rd_root_squash(char *page, char **start, off_t off,
692 int count, int *eof, void *data)
694 struct obd_device *obd = data;
695 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
697 return snprintf(page, count, "%u:%u\n", mdt->mdt_squash_uid,
698 mdt->mdt_squash_gid);
701 static int safe_strtoul(const char *str, char **endp, unsigned long *res)
705 *res = simple_strtoul(str, endp, 0);
709 sprintf(n, "%lu", *res);
710 if (strncmp(n, str, *endp - str))
716 static int lprocfs_wr_root_squash(struct file *file, const char __user *buffer,
717 unsigned long count, void *data)
719 struct obd_device *obd = data;
720 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
722 char kernbuf[64], *tmp, *end, *errmsg;
723 unsigned long uid, gid;
727 if (count >= sizeof(kernbuf)) {
728 errmsg = "string too long";
729 GOTO(failed_noprint, rc = -EINVAL);
731 if (copy_from_user(kernbuf, buffer, count)) {
732 errmsg = "bad address";
733 GOTO(failed_noprint, rc = -EFAULT);
735 kernbuf[count] = '\0';
738 if (safe_strtoul(kernbuf, &tmp, &uid)) {
739 uid = mdt->mdt_squash_uid;
746 if (safe_strtoul(tmp, &end, &gid)) {
747 gid = mdt->mdt_squash_gid;
751 gid = mdt->mdt_squash_gid;
755 mdt->mdt_squash_uid = uid;
756 mdt->mdt_squash_gid = gid;
758 if (nouid && nogid) {
759 errmsg = "needs uid:gid format";
760 GOTO(failed, rc = -EINVAL);
763 LCONSOLE_INFO("%s: root_squash is set to %u:%u\n",
765 mdt->mdt_squash_uid, mdt->mdt_squash_gid);
769 CWARN("%s: failed to set root_squash to \"%s\", %s: rc %d\n",
770 mdt_obd_name(mdt), kernbuf, errmsg, rc);
773 CWARN("%s: failed to set root_squash due to %s: rc %d\n",
774 mdt_obd_name(mdt), errmsg, rc);
778 static int lprocfs_rd_nosquash_nids(char *page, char **start, off_t off,
779 int count, int *eof, void *data)
781 struct obd_device *obd = data;
782 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
784 if (mdt->mdt_nosquash_str)
785 return snprintf(page, count, "%s\n", mdt->mdt_nosquash_str);
786 return snprintf(page, count, "NONE\n");
789 static int lprocfs_wr_nosquash_nids(struct file *file,
790 const char __user *buffer,
791 unsigned long count, void *data)
793 struct obd_device *obd = data;
794 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
796 char *kernbuf, *errmsg;
800 OBD_ALLOC(kernbuf, count + 1);
801 if (kernbuf == NULL) {
802 errmsg = "no memory";
803 GOTO(failed, rc = -ENOMEM);
805 if (copy_from_user(kernbuf, buffer, count)) {
806 errmsg = "bad address";
807 GOTO(failed, rc = -EFAULT);
809 kernbuf[count] = '\0';
811 if (!strcmp(kernbuf, "NONE") || !strcmp(kernbuf, "clear")) {
812 /* empty string is special case */
813 down_write(&mdt->mdt_squash_sem);
814 if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
815 cfs_free_nidlist(&mdt->mdt_nosquash_nids);
816 OBD_FREE(mdt->mdt_nosquash_str,
817 mdt->mdt_nosquash_strlen);
818 mdt->mdt_nosquash_str = NULL;
819 mdt->mdt_nosquash_strlen = 0;
821 up_write(&mdt->mdt_squash_sem);
822 LCONSOLE_INFO("%s: nosquash_nids is cleared\n",
824 OBD_FREE(kernbuf, count + 1);
828 CFS_INIT_LIST_HEAD(&tmp);
829 if (cfs_parse_nidlist(kernbuf, count, &tmp) <= 0) {
830 errmsg = "can't parse";
831 GOTO(failed, rc = -EINVAL);
834 down_write(&mdt->mdt_squash_sem);
835 if (!cfs_list_empty(&mdt->mdt_nosquash_nids)) {
836 cfs_free_nidlist(&mdt->mdt_nosquash_nids);
837 OBD_FREE(mdt->mdt_nosquash_str, mdt->mdt_nosquash_strlen);
839 mdt->mdt_nosquash_str = kernbuf;
840 mdt->mdt_nosquash_strlen = count + 1;
841 cfs_list_splice(&tmp, &mdt->mdt_nosquash_nids);
843 LCONSOLE_INFO("%s: nosquash_nids is set to %s\n",
844 mdt_obd_name(mdt), kernbuf);
845 up_write(&mdt->mdt_squash_sem);
849 CWARN("%s: failed to set nosquash_nids to \"%s\", %s: rc %d\n",
850 mdt_obd_name(mdt), kernbuf, errmsg, rc);
852 OBD_FREE(kernbuf, count + 1);
856 static int lprocfs_rd_mdt_som(char *page, char **start, off_t off,
857 int count, int *eof, void *data)
859 struct obd_device *obd = data;
860 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
862 return snprintf(page, count, "%sabled\n",
863 mdt->mdt_som_conf ? "en" : "dis");
866 static int lprocfs_wr_mdt_som(struct file *file, const char __user *buffer,
867 unsigned long count, void *data)
869 struct obd_export *exp;
870 struct obd_device *obd = data;
871 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
873 unsigned long val = 0;
875 if (count > (sizeof(kernbuf) - 1))
878 if (copy_from_user(kernbuf, buffer, count))
881 kernbuf[count] = '\0';
883 if (!strcmp(kernbuf, "enabled"))
885 else if (strcmp(kernbuf, "disabled"))
888 if (mdt->mdt_som_conf == val)
891 if (!obd->obd_process_conf) {
892 CERROR("Temporary SOM change is not supported, use lctl "
893 "conf_param for permanent setting\n");
897 /* 1 stands for self export. */
898 cfs_list_for_each_entry(exp, &obd->obd_exports, exp_obd_chain) {
899 if (exp == obd->obd_self_export)
901 if (exp_connect_flags(exp) & OBD_CONNECT_MDS_MDS)
903 /* Some clients are already connected, skip the change */
904 LCONSOLE_INFO("%s is already connected, SOM will be %s on "
905 "the next mount\n", exp->exp_client_uuid.uuid,
906 val ? "enabled" : "disabled");
910 mdt->mdt_som_conf = val;
911 LCONSOLE_INFO("Enabling SOM\n");
916 static int lprocfs_rd_enable_remote_dir(char *page, char **start, off_t off,
917 int count, int *eof, void *data)
919 struct obd_device *obd = data;
920 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
922 return snprintf(page, count, "%u\n", mdt->mdt_enable_remote_dir);
925 static int lprocfs_wr_enable_remote_dir(struct file *file,
926 const char __user *buffer,
927 unsigned long count, void *data)
929 struct obd_device *obd = data;
930 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
934 rc = lprocfs_write_helper(buffer, count, &val);
941 mdt->mdt_enable_remote_dir = val;
945 static int lprocfs_rd_enable_remote_dir_gid(char *page, char **start, off_t off,
946 int count, int *eof, void *data)
948 struct obd_device *obd = data;
949 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
951 return snprintf(page, count, "%d\n",
952 (int)mdt->mdt_enable_remote_dir_gid);
955 static int lprocfs_wr_enable_remote_dir_gid(struct file *file,
956 const char __user *buffer,
957 unsigned long count, void *data)
959 struct obd_device *obd = data;
960 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
964 rc = lprocfs_write_helper(buffer, count, &val);
968 mdt->mdt_enable_remote_dir_gid = val;
972 static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
973 { "uuid", lprocfs_rd_uuid, NULL,
975 { "recovery_status", lprocfs_obd_rd_recovery_status, NULL,
977 { "num_exports", lprocfs_rd_num_exports, NULL,
979 { "identity_expire", lprocfs_rd_identity_expire,
980 lprocfs_wr_identity_expire,
982 { "identity_acquire_expire", lprocfs_rd_identity_acquire_expire,
983 lprocfs_wr_identity_acquire_expire,
985 { "identity_upcall", lprocfs_rd_identity_upcall,
986 lprocfs_wr_identity_upcall,
988 { "identity_flush", NULL, lprocfs_wr_identity_flush,
990 { "identity_info", NULL, lprocfs_wr_identity_info,
992 { "capa", lprocfs_rd_capa,
995 { "capa_timeout", lprocfs_rd_capa_timeout,
996 lprocfs_wr_capa_timeout,
998 { "capa_key_timeout", lprocfs_rd_ck_timeout,
999 lprocfs_wr_ck_timeout,
1001 { "capa_count", lprocfs_rd_capa_count, NULL,
1003 { "site_stats", lprocfs_rd_site_stats, NULL,
1005 { "evict_client", NULL, lprocfs_mdt_wr_evict_client,
1007 { "hash_stats", lprocfs_obd_rd_hash, NULL,
1009 { "sec_level", lprocfs_rd_sec_level,
1010 lprocfs_wr_sec_level,
1012 { "commit_on_sharing", lprocfs_rd_cos, lprocfs_wr_cos,
1014 { "root_squash", lprocfs_rd_root_squash,
1015 lprocfs_wr_root_squash,
1017 { "nosquash_nids", lprocfs_rd_nosquash_nids,
1018 lprocfs_wr_nosquash_nids,
1020 { "som", lprocfs_rd_mdt_som,
1023 { "instance", lprocfs_target_rd_instance, NULL,
1025 { "ir_factor", lprocfs_obd_rd_ir_factor,
1026 lprocfs_obd_wr_ir_factor,
1028 { "job_cleanup_interval", lprocfs_rd_job_interval,
1029 lprocfs_wr_job_interval,
1031 { "enable_remote_dir", lprocfs_rd_enable_remote_dir,
1032 lprocfs_wr_enable_remote_dir,
1034 { "enable_remote_dir_gid", lprocfs_rd_enable_remote_dir_gid,
1035 lprocfs_wr_enable_remote_dir_gid,
1037 { "hsm_control", lprocfs_rd_hsm_cdt_control,
1038 lprocfs_wr_hsm_cdt_control,
1043 static struct lprocfs_vars lprocfs_mdt_module_vars[] = {
1044 { "num_refs", lprocfs_rd_numrefs, NULL,
1049 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
1051 lvars->module_vars = lprocfs_mdt_module_vars;
1052 lvars->obd_vars = lprocfs_mdt_obd_vars;
1055 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
1056 { "uuid", lprocfs_rd_uuid, NULL, NULL, NULL, 0 },
1060 struct lprocfs_vars lprocfs_mds_module_vars[] = {
1061 { "num_refs", lprocfs_rd_numrefs, NULL, NULL, NULL, 0 },
1065 int lprocfs_mdt_print_open_files(cfs_hash_t *hs, cfs_hash_bd_t *bd,
1066 cfs_hlist_node_t *hnode, void *v)
1068 struct obd_export *exp = cfs_hash_object(hs, hnode);
1069 struct seq_file *seq = v;
1071 if (exp->exp_lock_hash != NULL) {
1072 struct mdt_export_data *med = &exp->exp_mdt_data;
1073 struct mdt_file_data *mfd;
1075 spin_lock(&med->med_open_lock);
1076 cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
1077 seq_printf(seq, DFID"\n",
1078 PFID(mdt_object_fid(mfd->mfd_object)));
1080 spin_unlock(&med->med_open_lock);
1086 int lprocfs_mdt_open_files_seq_show(struct seq_file *seq, void *v)
1088 struct nid_stat *stats = seq->private;
1089 struct obd_device *obd = stats->nid_obd;
1091 cfs_hash_for_each_key(obd->obd_nid_hash, &stats->nid,
1092 lprocfs_mdt_print_open_files, seq);
1097 int lprocfs_mdt_open_files_seq_open(struct inode *inode, struct file *file)
1099 struct proc_dir_entry *dp = PDE(inode);
1100 struct seq_file *seq;
1101 struct nid_stat *tmp;
1104 if (LPROCFS_ENTRY_CHECK(dp))
1108 rc = single_open(file, &lprocfs_mdt_open_files_seq_show, NULL);
1112 seq = file->private_data;
1118 void mdt_counter_incr(struct ptlrpc_request *req, int opcode)
1120 struct obd_export *exp = req->rq_export;
1122 if (exp->exp_obd && exp->exp_obd->obd_md_stats)
1123 lprocfs_counter_incr(exp->exp_obd->obd_md_stats, opcode);
1124 if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
1125 lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
1126 if (exp->exp_obd && exp->exp_obd->u.obt.obt_jobstats.ojs_hash &&
1127 (exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS))
1128 lprocfs_job_stats_log(exp->exp_obd,
1129 lustre_msg_get_jobid(req->rq_reqmsg),
1133 void mdt_stats_counter_init(struct lprocfs_stats *stats)
1135 lprocfs_counter_init(stats, LPROC_MDT_OPEN, 0, "open", "reqs");
1136 lprocfs_counter_init(stats, LPROC_MDT_CLOSE, 0, "close", "reqs");
1137 lprocfs_counter_init(stats, LPROC_MDT_MKNOD, 0, "mknod", "reqs");
1138 lprocfs_counter_init(stats, LPROC_MDT_LINK, 0, "link", "reqs");
1139 lprocfs_counter_init(stats, LPROC_MDT_UNLINK, 0, "unlink", "reqs");
1140 lprocfs_counter_init(stats, LPROC_MDT_MKDIR, 0, "mkdir", "reqs");
1141 lprocfs_counter_init(stats, LPROC_MDT_RMDIR, 0, "rmdir", "reqs");
1142 lprocfs_counter_init(stats, LPROC_MDT_RENAME, 0, "rename", "reqs");
1143 lprocfs_counter_init(stats, LPROC_MDT_GETATTR, 0, "getattr", "reqs");
1144 lprocfs_counter_init(stats, LPROC_MDT_SETATTR, 0, "setattr", "reqs");
1145 lprocfs_counter_init(stats, LPROC_MDT_GETXATTR, 0, "getxattr", "reqs");
1146 lprocfs_counter_init(stats, LPROC_MDT_SETXATTR, 0, "setxattr", "reqs");
1147 lprocfs_counter_init(stats, LPROC_MDT_STATFS, 0, "statfs", "reqs");
1148 lprocfs_counter_init(stats, LPROC_MDT_SYNC, 0, "sync", "reqs");
1149 lprocfs_counter_init(stats, LPROC_MDT_SAMEDIR_RENAME, 0,
1150 "samedir_rename", "reqs");
1151 lprocfs_counter_init(stats, LPROC_MDT_CROSSDIR_RENAME, 0,
1152 "crossdir_rename", "reqs");