1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
25 #define DEBUG_SUBSYSTEM S_CLASS
27 #include <linux/version.h>
28 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
29 #include <asm/statfs.h>
32 #include <obd_class.h>
33 #include <lprocfs_status.h>
34 #include "mds_internal.h"
37 static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
40 struct obd_device* obd = (struct obd_device *)data;
43 LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
46 return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname);
49 static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off,
50 int count, int *eof, void *data)
52 struct obd_device* obd = (struct obd_device *)data;
56 return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids);
59 static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer,
60 unsigned long count, void *data)
62 struct obd_device *obd = data;
65 rc = lprocfs_write_helper(buffer, count, &val);
69 obd->u.mds.mds_evict_ost_nids = !!val;
74 static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
75 unsigned long count, void *data)
77 struct obd_device *obd = data;
78 struct mds_obd *mds = &obd->u.mds;
79 char tmpbuf[sizeof(struct obd_uuid)];
80 struct ptlrpc_request_set *set;
83 sscanf(buffer, "%40s", tmpbuf);
85 if (strncmp(tmpbuf, "nid:", 4) != 0)
86 return lprocfs_wr_evict_client(file, buffer, count, data);
88 set = ptlrpc_prep_set();
92 if (obd->u.mds.mds_evict_ost_nids) {
93 rc = obd_set_info_async(mds->mds_osc_exp,strlen("evict_by_nid"),
94 "evict_by_nid", strlen(tmpbuf + 4) + 1,
97 CERROR("Failed to evict nid %s from OSTs: rc %d\n",
99 ptlrpc_check_set(set);
102 /* See the comments in function lprocfs_wr_evict_client()
103 * in ptlrpc/lproc_ptlrpc.c for details. - jay */
107 obd_export_evict_by_nid(obd, tmpbuf+4);
112 rc = ptlrpc_set_wait(set);
114 CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
116 ptlrpc_set_destroy(set);
120 static int lprocfs_wr_group_info(struct file *file, const char *buffer,
121 unsigned long count, void *data)
123 struct obd_device *obd = data;
124 struct mds_obd *mds = &obd->u.mds;
125 struct mds_grp_downcall_data sparam, *param = &sparam;
126 int size = 0, rc = count;
128 if (count < sizeof(param)) {
129 CERROR("%s: invalid data size %lu\n", obd->obd_name, count);
133 if (copy_from_user(param, buffer, sizeof(*param)) ||
134 param->mgd_magic != MDS_GRP_DOWNCALL_MAGIC) {
135 CERROR("%s: MDS group downcall bad params\n", obd->obd_name);
139 if (param->mgd_ngroups > NGROUPS_MAX) {
140 CWARN("%s: uid %u groups %d more than maximum %d\n",
141 obd->obd_name, param->mgd_uid, param->mgd_ngroups,
143 param->mgd_ngroups = NGROUPS_MAX;
146 if (param->mgd_ngroups > 0) {
147 size = offsetof(struct mds_grp_downcall_data,
148 mgd_groups[param->mgd_ngroups]);
149 OBD_ALLOC(param, size);
151 CERROR("%s: fail to alloc %d bytes for uid %u"
152 " with %d groups\n", obd->obd_name, size,
153 sparam.mgd_uid, sparam.mgd_ngroups);
155 param->mgd_ngroups = 0;
156 } else if (copy_from_user(param, buffer, size)) {
157 CERROR("%s: uid %u bad supplementary group data\n",
158 obd->obd_name, sparam.mgd_uid);
159 OBD_FREE(param, size);
161 param->mgd_ngroups = 0;
164 rc = upcall_cache_downcall(mds->mds_group_hash, param->mgd_err,
165 param->mgd_uid, param->mgd_gid,
166 param->mgd_ngroups, param->mgd_groups);
168 if (param && param != &sparam)
169 OBD_FREE(param, size);
174 static int lprocfs_rd_group_expire(char *page, char **start, off_t off,
175 int count, int *eof, void *data)
177 struct obd_device *obd = data;
180 return snprintf(page, count, "%lu\n",
181 obd->u.mds.mds_group_hash->uc_entry_expire / HZ);
184 static int lprocfs_wr_group_expire(struct file *file, const char *buffer,
185 unsigned long count, void *data)
187 struct obd_device *obd = data;
190 rc = lprocfs_write_helper(buffer, count, &val);
195 obd->u.mds.mds_group_hash->uc_entry_expire = val * HZ;
197 CERROR("invalid expire time %u for group cache\n", val);
202 static int lprocfs_rd_group_acquire_expire(char *page, char **start, off_t off,
203 int count, int *eof, void *data)
205 struct obd_device *obd = data;
208 return snprintf(page, count, "%lu\n",
209 obd->u.mds.mds_group_hash->uc_acquire_expire / HZ);
212 static int lprocfs_wr_group_acquire_expire(struct file *file,const char *buffer,
213 unsigned long count, void *data)
215 struct obd_device *obd = data;
218 rc = lprocfs_write_helper(buffer, count, &val);
223 obd->u.mds.mds_group_hash->uc_acquire_expire = val * HZ;
228 static int lprocfs_rd_group_upcall(char *page, char **start, off_t off,
229 int count, int *eof, void *data)
231 struct obd_device *obd = data;
234 return snprintf(page, count, "%s\n",
235 obd->u.mds.mds_group_hash->uc_upcall);
238 static int lprocfs_wr_group_upcall(struct file *file, const char *buffer,
239 unsigned long count, void *data)
241 struct obd_device *obd = data;
242 struct upcall_cache *hash = obd->u.mds.mds_group_hash;
243 char kernbuf[UC_CACHE_UPCALL_MAXPATH] = { '\0' };
245 if (count >= UC_CACHE_UPCALL_MAXPATH) {
246 CERROR("%s: group upcall too long\n", obd->obd_name);
250 if (copy_from_user(kernbuf, buffer,
251 min(count, UC_CACHE_UPCALL_MAXPATH - 1)))
254 /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
255 sscanf(kernbuf, "%s", hash->uc_upcall);
257 if (strcmp(hash->uc_name, obd->obd_name) != 0)
258 CWARN("%s: write to upcall name %s for MDS %s\n",
259 obd->obd_name, hash->uc_upcall, obd->obd_name);
260 CWARN("%s: group upcall set to %s\n", obd->obd_name, hash->uc_upcall);
265 static int lprocfs_wr_group_flush(struct file *file, const char *buffer,
266 unsigned long count, void *data)
268 struct obd_device *obd = data;
270 upcall_cache_flush_idle(obd->u.mds.mds_group_hash);
274 static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
275 unsigned long count, void *data)
277 struct obd_device *obd = data;
278 struct mds_obd *mds = &obd->u.mds;
279 char kernbuf[20], *end;
280 unsigned long diff = 0;
282 if (count > (sizeof(kernbuf) - 1))
285 if (copy_from_user(kernbuf, buffer, count))
288 kernbuf[count] = '\0';
290 diff = simple_strtoul(kernbuf, &end, 0);
294 mds->mds_atime_diff = diff;
298 static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
299 int count, int *eof, void *data)
301 struct obd_device *obd = data;
302 struct mds_obd *mds = &obd->u.mds;
305 return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
308 static int lprocfs_wr_rootsquash(struct file *file, const char *buffer,
309 unsigned long count, void *data)
311 struct obd_device *obd = data;
312 struct mds_obd *mds = &obd->u.mds;
313 char kernbuf[50], *tmp, *end;
314 unsigned long uid, gid;
316 if (count > (sizeof(kernbuf) - 1))
319 if (copy_from_user(kernbuf, buffer, count))
322 kernbuf[count] = '\0';
324 uid = simple_strtoul(kernbuf, &tmp, 0);
325 if (kernbuf == tmp) {
328 uid = mds->mds_squash_uid;
332 gid = simple_strtoul(tmp, &end, 0);
334 gid = mds->mds_squash_gid;
336 mds->mds_squash_uid = uid;
337 mds->mds_squash_gid = gid;
341 static int lprocfs_rd_rootsquash(char *page, char **start, off_t off,
342 int count, int *eof, void *data)
344 struct obd_device *obd = data;
345 struct mds_obd *mds = &obd->u.mds;
348 return snprintf(page, count, "%lu:%lu\n",
349 (unsigned long)mds->mds_squash_uid,
350 (unsigned long)mds->mds_squash_gid);
353 static int lprocfs_wr_nosquash_nid(struct file *file, const char *buffer,
354 unsigned long count, void *data)
356 struct obd_device *obd = data;
357 struct mds_obd *mds = &obd->u.mds;
358 char kernbuf[30], *start, *end;
360 if (count > (sizeof(kernbuf) - 1))
363 if (copy_from_user(kernbuf, buffer, count))
365 kernbuf[count] = '\0';
367 /* strip frontal whitespaces */
369 while (*start && isspace(*start))
371 /* EOL - string doesn't contain NID */
374 /* strip backward whitespaces */
375 end = kernbuf + count - 1;
376 while (*end && isspace(*end))
380 mds->mds_nosquash_nid = libcfs_str2nid(start);
384 static int lprocfs_rd_nosquash_nid(char *page, char **start, off_t off,
385 int count, int *eof, void *data)
387 struct obd_device *obd = data;
388 struct mds_obd *mds = &obd->u.mds;
391 return snprintf(page, count, "%s\n",
392 libcfs_nid2str(mds->mds_nosquash_nid));
395 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
396 { "uuid", lprocfs_rd_uuid, 0, 0 },
397 { "blocksize", lprocfs_rd_blksize, 0, 0 },
398 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
399 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
400 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
401 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
402 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
403 { "fstype", lprocfs_rd_fstype, 0, 0 },
404 { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
405 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
406 { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
407 { "evict_ost_nids", lprocfs_mds_rd_evictostnids,
408 lprocfs_mds_wr_evictostnids, 0 },
409 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
410 #ifdef HAVE_QUOTA_SUPPORT
411 { "quota_bunit_sz", lprocfs_rd_bunit, lprocfs_wr_bunit, 0 },
412 { "quota_btune_sz", lprocfs_rd_btune, lprocfs_wr_btune, 0 },
413 { "quota_iunit_sz", lprocfs_rd_iunit, lprocfs_wr_iunit, 0 },
414 { "quota_itune_sz", lprocfs_rd_itune, lprocfs_wr_itune, 0 },
415 { "quota_type", lprocfs_rd_type, lprocfs_wr_type, 0 },
417 { "group_expire_interval", lprocfs_rd_group_expire,
418 lprocfs_wr_group_expire, 0},
419 { "group_acquire_expire", lprocfs_rd_group_acquire_expire,
420 lprocfs_wr_group_acquire_expire, 0},
421 { "group_upcall", lprocfs_rd_group_upcall,
422 lprocfs_wr_group_upcall, 0},
423 { "group_flush", 0, lprocfs_wr_group_flush, 0},
424 { "group_info", 0, lprocfs_wr_group_info, 0 },
425 { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
426 { "rootsquash", lprocfs_rd_rootsquash,
427 lprocfs_wr_rootsquash, 0 },
428 { "nosquash_nid", lprocfs_rd_nosquash_nid,
429 lprocfs_wr_nosquash_nid, 0 },
433 struct lprocfs_vars lprocfs_mds_module_vars[] = {
434 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
438 struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
439 { "uuid", lprocfs_rd_uuid, 0, 0 },
443 struct lprocfs_vars lprocfs_mdt_module_vars[] = {
444 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
448 void mds_counter_incr(struct obd_export *exp, int opcode)
450 if (exp->exp_obd && exp->exp_obd->obd_stats)
451 lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
452 if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
453 lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
457 void mds_stats_counter_init(struct lprocfs_stats *stats)
459 lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
460 lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
461 lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
462 lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
463 lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
464 lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
465 lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
466 lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
467 lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
468 lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
471 void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
473 lvars->module_vars = lprocfs_mds_module_vars;
474 lvars->obd_vars = lprocfs_mds_obd_vars;
477 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
479 lvars->module_vars = lprocfs_mdt_module_vars;
480 lvars->obd_vars = lprocfs_mdt_obd_vars;