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 #include <asm/statfs.h>
30 #include <obd_class.h>
31 #include <lprocfs_status.h>
32 #include "mds_internal.h"
35 static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
38 struct obd_device* obd = (struct obd_device *)data;
41 LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
44 return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname);
47 static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off,
48 int count, int *eof, void *data)
50 struct obd_device* obd = (struct obd_device *)data;
54 return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids);
57 static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer,
58 unsigned long count, void *data)
60 struct obd_device *obd = data;
63 rc = lprocfs_write_helper(buffer, count, &val);
67 obd->u.mds.mds_evict_ost_nids = !!val;
72 static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
73 unsigned long count, void *data)
75 struct obd_device *obd = data;
76 struct mds_obd *mds = &obd->u.mds;
77 char tmpbuf[sizeof(struct obd_uuid)];
78 struct ptlrpc_request_set *set;
81 sscanf(buffer, "%40s", tmpbuf);
83 if (strncmp(tmpbuf, "nid:", 4) != 0)
84 return lprocfs_wr_evict_client(file, buffer, count, data);
86 set = ptlrpc_prep_set();
90 if (obd->u.mds.mds_evict_ost_nids) {
91 rc = obd_set_info_async(mds->mds_osc_exp,strlen("evict_by_nid"),
92 "evict_by_nid", strlen(tmpbuf + 4) + 1,
95 CERROR("Failed to evict nid %s from OSTs: rc %d\n",
98 ptlrpc_check_set(set);
101 /* See the comments in function lprocfs_wr_evict_client()
102 * in ptlrpc/lproc_ptlrpc.c for details. - jay */
106 obd_export_evict_by_nid(obd, tmpbuf+4);
109 rc = ptlrpc_set_wait(set);
111 CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
117 ptlrpc_set_destroy(set);
122 static int lprocfs_wr_group_info(struct file *file, const char *buffer,
123 unsigned long count, void *data)
125 struct obd_device *obd = data;
126 struct mds_obd *mds = &obd->u.mds;
127 struct mds_grp_downcall_data sparam, *param = &sparam;
128 int size = 0, rc = count;
130 if (count < sizeof(param)) {
131 CERROR("%s: invalid data size %lu\n", obd->obd_name, count);
135 if (copy_from_user(param, buffer, sizeof(*param)) ||
136 param->mgd_magic != MDS_GRP_DOWNCALL_MAGIC) {
137 CERROR("%s: MDS group downcall bad params\n", obd->obd_name);
141 if (param->mgd_ngroups > NGROUPS_MAX) {
142 CWARN("%s: uid %u groups %d more than maximum %d\n",
143 obd->obd_name, param->mgd_uid, param->mgd_ngroups,
145 param->mgd_ngroups = NGROUPS_MAX;
148 if (param->mgd_ngroups > 0) {
149 size = offsetof(struct mds_grp_downcall_data,
150 mgd_groups[param->mgd_ngroups]);
151 OBD_ALLOC(param, size);
153 CERROR("%s: fail to alloc %d bytes for uid %u"
154 " with %d groups\n", obd->obd_name, size,
155 sparam.mgd_uid, sparam.mgd_ngroups);
157 param->mgd_ngroups = 0;
158 } else if (copy_from_user(param, buffer, size)) {
159 CERROR("%s: uid %u bad supplementary group data\n",
160 obd->obd_name, sparam.mgd_uid);
161 OBD_FREE(param, size);
163 param->mgd_ngroups = 0;
166 rc = upcall_cache_downcall(mds->mds_group_hash, param->mgd_err,
167 param->mgd_uid, param->mgd_gid,
168 param->mgd_ngroups, param->mgd_groups);
170 if (param && param != &sparam)
171 OBD_FREE(param, size);
176 static int lprocfs_rd_group_expire(char *page, char **start, off_t off,
177 int count, int *eof, void *data)
179 struct obd_device *obd = data;
182 return snprintf(page, count, "%lu\n",
183 obd->u.mds.mds_group_hash->uc_entry_expire / HZ);
186 static int lprocfs_wr_group_expire(struct file *file, const char *buffer,
187 unsigned long count, void *data)
189 struct obd_device *obd = data;
192 rc = lprocfs_write_helper(buffer, count, &val);
197 obd->u.mds.mds_group_hash->uc_entry_expire = val * HZ;
199 CERROR("invalid expire time %u for group cache\n", val);
204 static int lprocfs_rd_group_acquire_expire(char *page, char **start, off_t off,
205 int count, int *eof, void *data)
207 struct obd_device *obd = data;
210 return snprintf(page, count, "%lu\n",
211 obd->u.mds.mds_group_hash->uc_acquire_expire / HZ);
214 static int lprocfs_wr_group_acquire_expire(struct file *file,const char *buffer,
215 unsigned long count, void *data)
217 struct obd_device *obd = data;
220 rc = lprocfs_write_helper(buffer, count, &val);
225 obd->u.mds.mds_group_hash->uc_acquire_expire = val * HZ;
230 static int lprocfs_rd_group_upcall(char *page, char **start, off_t off,
231 int count, int *eof, void *data)
233 struct obd_device *obd = data;
236 return snprintf(page, count, "%s\n",
237 obd->u.mds.mds_group_hash->uc_upcall);
240 static int lprocfs_wr_group_upcall(struct file *file, const char *buffer,
241 unsigned long count, void *data)
243 struct obd_device *obd = data;
244 struct upcall_cache *hash = obd->u.mds.mds_group_hash;
245 char kernbuf[UC_CACHE_UPCALL_MAXPATH] = { '\0' };
247 if (count >= UC_CACHE_UPCALL_MAXPATH) {
248 CERROR("%s: group upcall too long\n", obd->obd_name);
252 if (copy_from_user(kernbuf, buffer,
253 min(count, UC_CACHE_UPCALL_MAXPATH - 1)))
256 /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
257 sscanf(kernbuf, "%s", hash->uc_upcall);
259 if (strcmp(hash->uc_name, obd->obd_name) != 0)
260 CWARN("%s: write to upcall name %s for MDS %s\n",
261 obd->obd_name, hash->uc_upcall, obd->obd_name);
262 CWARN("%s: group upcall set to %s\n", obd->obd_name, hash->uc_upcall);
267 static int lprocfs_wr_group_flush(struct file *file, const char *buffer,
268 unsigned long count, void *data)
270 struct obd_device *obd = data;
272 upcall_cache_flush_idle(obd->u.mds.mds_group_hash);
277 static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
278 unsigned long count, void *data)
280 struct obd_device *obd = data;
281 struct mds_obd *mds = &obd->u.mds;
282 char kernbuf[20], *end;
283 unsigned long diff = 0;
285 if (count > (sizeof(kernbuf) - 1))
288 if (copy_from_user(kernbuf, buffer, count))
291 kernbuf[count] = '\0';
293 diff = simple_strtoul(kernbuf, &end, 0);
297 mds->mds_atime_diff = diff;
301 static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
302 int count, int *eof, void *data)
304 struct obd_device *obd = data;
305 struct mds_obd *mds = &obd->u.mds;
308 return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
311 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
312 { "uuid", lprocfs_rd_uuid, 0, 0 },
313 { "blocksize", lprocfs_rd_blksize, 0, 0 },
314 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
315 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
316 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
317 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
318 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
319 { "fstype", lprocfs_rd_fstype, 0, 0 },
320 { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
321 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
322 { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
323 { "evict_ost_nids", lprocfs_mds_rd_evictostnids,
324 lprocfs_mds_wr_evictostnids, 0 },
325 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
326 #ifdef HAVE_QUOTA_SUPPORT
327 { "quota_bunit_sz", lprocfs_rd_bunit, lprocfs_wr_bunit, 0 },
328 { "quota_btune_sz", lprocfs_rd_btune, lprocfs_wr_btune, 0 },
329 { "quota_iunit_sz", lprocfs_rd_iunit, lprocfs_wr_iunit, 0 },
330 { "quota_itune_sz", lprocfs_rd_itune, lprocfs_wr_itune, 0 },
331 { "quota_type", lprocfs_rd_type, lprocfs_wr_type, 0 },
334 { "group_expire_interval", lprocfs_rd_group_expire,
335 lprocfs_wr_group_expire, 0},
336 { "group_acquire_expire", lprocfs_rd_group_acquire_expire,
337 lprocfs_wr_group_acquire_expire, 0},
338 { "group_upcall", lprocfs_rd_group_upcall,
339 lprocfs_wr_group_upcall, 0},
340 { "group_flush", 0, lprocfs_wr_group_flush, 0},
341 { "group_info", 0, lprocfs_wr_group_info, 0 },
343 { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
347 struct lprocfs_vars lprocfs_mds_module_vars[] = {
348 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
352 struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
353 { "uuid", lprocfs_rd_uuid, 0, 0 },
357 struct lprocfs_vars lprocfs_mdt_module_vars[] = {
358 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
362 void mds_counter_incr(struct obd_export *exp, int opcode)
364 if (exp->exp_obd && exp->exp_obd->obd_stats)
365 lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
366 if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
367 lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
371 void mds_stats_counter_init(struct lprocfs_stats *stats)
373 lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
374 lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
375 lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
376 lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
377 lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
378 lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
379 lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
380 lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
381 lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
382 lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
385 void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
387 lvars->module_vars = lprocfs_mds_module_vars;
388 lvars->obd_vars = lprocfs_mds_obd_vars;
391 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
393 lvars->module_vars = lprocfs_mdt_module_vars;
394 lvars->obd_vars = lprocfs_mdt_obd_vars;