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_wr_evict_client(struct file *file, const char *buffer,
50 unsigned long count, void *data)
52 struct obd_device *obd = data;
53 struct mds_obd *mds = &obd->u.mds;
54 char tmpbuf[sizeof(struct obd_uuid)];
55 struct ptlrpc_request_set *set;
58 sscanf(buffer, "%40s", tmpbuf);
60 if (strncmp(tmpbuf, "nid:", 4) != 0)
61 return lprocfs_wr_evict_client(file, buffer, count, data);
63 set = ptlrpc_prep_set();
67 rc = obd_set_info_async(mds->mds_osc_exp, strlen("evict_by_nid"),
68 "evict_by_nid", strlen(tmpbuf + 4) + 1,
71 CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
74 ptlrpc_check_set(set);
76 /* See the comments in function lprocfs_wr_evict_client()
77 * in ptlrpc/lproc_ptlrpc.c for details. - jay */
81 obd_export_evict_by_nid(obd, tmpbuf+4);
86 rc = ptlrpc_set_wait(set);
88 CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
90 ptlrpc_set_destroy(set);
95 static int lprocfs_wr_group_info(struct file *file, const char *buffer,
96 unsigned long count, void *data)
98 struct obd_device *obd = data;
99 struct mds_obd *mds = &obd->u.mds;
100 struct mds_grp_downcall_data sparam, *param = &sparam;
101 int size = 0, rc = count;
103 if (count < sizeof(param)) {
104 CERROR("%s: invalid data size %lu\n", obd->obd_name, count);
108 if (copy_from_user(param, buffer, sizeof(*param)) ||
109 param->mgd_magic != MDS_GRP_DOWNCALL_MAGIC) {
110 CERROR("%s: MDS group downcall bad params\n", obd->obd_name);
114 if (param->mgd_ngroups > NGROUPS_MAX) {
115 CWARN("%s: uid %u groups %d more than maximum %d\n",
116 obd->obd_name, param->mgd_uid, param->mgd_ngroups,
118 param->mgd_ngroups = NGROUPS_MAX;
121 if (param->mgd_ngroups > 0) {
122 size = offsetof(struct mds_grp_downcall_data,
123 mgd_groups[param->mgd_ngroups]);
124 OBD_ALLOC(param, size);
126 CERROR("%s: fail to alloc %d bytes for uid %u"
127 " with %d groups\n", obd->obd_name, size,
128 sparam.mgd_uid, sparam.mgd_ngroups);
130 param->mgd_ngroups = 0;
131 } else if (copy_from_user(param, buffer, size)) {
132 CERROR("%s: uid %u bad supplementary group data\n",
133 obd->obd_name, sparam.mgd_uid);
134 OBD_FREE(param, size);
136 param->mgd_ngroups = 0;
139 rc = upcall_cache_downcall(mds->mds_group_hash, param->mgd_err,
140 param->mgd_uid, param->mgd_gid,
141 param->mgd_ngroups, param->mgd_groups);
143 if (param && param != &sparam)
144 OBD_FREE(param, size);
149 static int lprocfs_rd_group_expire(char *page, char **start, off_t off,
150 int count, int *eof, void *data)
152 struct obd_device *obd = data;
155 return snprintf(page, count, "%lu\n",
156 obd->u.mds.mds_group_hash->uc_entry_expire / HZ);
159 static int lprocfs_wr_group_expire(struct file *file, const char *buffer,
160 unsigned long count, void *data)
162 struct obd_device *obd = data;
165 rc = lprocfs_write_helper(buffer, count, &val);
170 obd->u.mds.mds_group_hash->uc_entry_expire = val * HZ;
172 CERROR("invalid expire time %u for group cache\n", val);
177 static int lprocfs_rd_group_acquire_expire(char *page, char **start, off_t off,
178 int count, int *eof, void *data)
180 struct obd_device *obd = data;
183 return snprintf(page, count, "%lu\n",
184 obd->u.mds.mds_group_hash->uc_acquire_expire / HZ);
187 static int lprocfs_wr_group_acquire_expire(struct file *file,const char *buffer,
188 unsigned long count, void *data)
190 struct obd_device *obd = data;
193 rc = lprocfs_write_helper(buffer, count, &val);
198 obd->u.mds.mds_group_hash->uc_acquire_expire = val * HZ;
203 static int lprocfs_rd_group_upcall(char *page, char **start, off_t off,
204 int count, int *eof, void *data)
206 struct obd_device *obd = data;
209 return snprintf(page, count, "%s\n",
210 obd->u.mds.mds_group_hash->uc_upcall);
213 static int lprocfs_wr_group_upcall(struct file *file, const char *buffer,
214 unsigned long count, void *data)
216 struct obd_device *obd = data;
217 struct upcall_cache *hash = obd->u.mds.mds_group_hash;
218 char kernbuf[UC_CACHE_UPCALL_MAXPATH] = { '\0' };
220 if (count >= UC_CACHE_UPCALL_MAXPATH) {
221 CERROR("%s: group upcall too long\n", obd->obd_name);
225 if (copy_from_user(kernbuf, buffer,
226 min(count, UC_CACHE_UPCALL_MAXPATH - 1)))
229 /* Remove any extraneous bits from the upcall (e.g. linefeeds) */
230 sscanf(kernbuf, "%s", hash->uc_upcall);
232 if (strcmp(hash->uc_name, obd->obd_name) != 0)
233 CWARN("%s: write to upcall name %s for MDS %s\n",
234 obd->obd_name, hash->uc_upcall, obd->obd_name);
235 CWARN("%s: group upcall set to %s\n", obd->obd_name, hash->uc_upcall);
240 static int lprocfs_wr_group_flush(struct file *file, const char *buffer,
241 unsigned long count, void *data)
243 struct obd_device *obd = data;
245 upcall_cache_flush_idle(obd->u.mds.mds_group_hash);
250 static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
251 unsigned long count, void *data)
253 struct obd_device *obd = data;
254 struct mds_obd *mds = &obd->u.mds;
255 char kernbuf[20], *end;
256 unsigned long diff = 0;
258 if (count > (sizeof(kernbuf) - 1))
261 if (copy_from_user(kernbuf, buffer, count))
264 kernbuf[count] = '\0';
266 diff = simple_strtoul(kernbuf, &end, 0);
270 mds->mds_atime_diff = diff;
274 static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
275 int count, int *eof, void *data)
277 struct obd_device *obd = data;
278 struct mds_obd *mds = &obd->u.mds;
281 return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
284 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
285 { "uuid", lprocfs_rd_uuid, 0, 0 },
286 { "blocksize", lprocfs_rd_blksize, 0, 0 },
287 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
288 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
289 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
290 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
291 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
292 { "fstype", lprocfs_rd_fstype, 0, 0 },
293 { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
294 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
295 { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
296 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
297 #ifdef HAVE_QUOTA_SUPPORT
298 { "quota_bunit_sz", lprocfs_rd_bunit, lprocfs_wr_bunit, 0 },
299 { "quota_btune_sz", lprocfs_rd_btune, lprocfs_wr_btune, 0 },
300 { "quota_iunit_sz", lprocfs_rd_iunit, lprocfs_wr_iunit, 0 },
301 { "quota_itune_sz", lprocfs_rd_itune, lprocfs_wr_itune, 0 },
302 { "quota_type", lprocfs_rd_type, lprocfs_wr_type, 0 },
305 { "group_expire_interval", lprocfs_rd_group_expire,
306 lprocfs_wr_group_expire, 0},
307 { "group_acquire_expire", lprocfs_rd_group_acquire_expire,
308 lprocfs_wr_group_acquire_expire, 0},
309 { "group_upcall", lprocfs_rd_group_upcall,
310 lprocfs_wr_group_upcall, 0},
311 { "group_flush", 0, lprocfs_wr_group_flush, 0},
312 { "group_info", 0, lprocfs_wr_group_info, 0 },
314 { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
318 struct lprocfs_vars lprocfs_mds_module_vars[] = {
319 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
323 struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
324 { "uuid", lprocfs_rd_uuid, 0, 0 },
328 struct lprocfs_vars lprocfs_mdt_module_vars[] = {
329 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
333 void mds_counter_incr(struct obd_export *exp, int opcode)
335 lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
336 lprocfs_counter_incr(exp->exp_ops_stats, opcode);
339 void mds_stats_counter_init(struct lprocfs_stats *stats)
341 lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
342 lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
343 lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
344 lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
345 lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
346 lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
347 lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
348 lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
349 lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
350 lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
353 LPROCFS_INIT_VARS(mds, lprocfs_mds_module_vars, lprocfs_mds_obd_vars);
354 LPROCFS_INIT_VARS(mdt, lprocfs_mdt_module_vars, lprocfs_mdt_obd_vars);