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 Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #define DEBUG_SUBSYSTEM S_CLASS
24 #include <linux/version.h>
25 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
26 #include <asm/statfs.h>
28 #include <linux/obd.h>
29 #include <linux/obd_class.h>
30 #include <linux/lprocfs_status.h>
31 #include "mds_internal.h"
35 struct lprocfs_vars lprocfs_mds_obd_vars[] = { {0} };
36 struct lprocfs_vars lprocfs_mds_module_vars[] = { {0} };
37 struct lprocfs_vars lprocfs_mdt_obd_vars[] = { {0} };
38 struct lprocfs_vars lprocfs_mdt_module_vars[] = { {0} };
42 static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off,
43 int count, int *eof, void *data)
45 struct obd_device* obd = (struct obd_device *)data;
48 LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname);
51 return snprintf(page, count, "%s\n",
52 obd->u.mds.mds_vfsmnt->mnt_devname);
55 static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
56 unsigned long count, void *data)
58 struct obd_device *obd = data;
59 struct obd_export *doomed_exp = NULL;
60 struct obd_uuid doomed;
62 char tmpbuf[sizeof(doomed)];
64 sscanf(buffer, "%40s", tmpbuf);
65 obd_str2uuid(&doomed, tmpbuf);
67 spin_lock(&obd->obd_dev_lock);
68 list_for_each(p, &obd->obd_exports) {
69 doomed_exp = list_entry(p, struct obd_export, exp_obd_chain);
70 if (obd_uuid_equals(&doomed, &doomed_exp->exp_client_uuid)) {
71 class_export_get(doomed_exp);
76 spin_unlock(&obd->obd_dev_lock);
78 if (doomed_exp == NULL) {
79 CERROR("can't disconnect %s: no export found\n",
82 CERROR("evicting %s at adminstrative request\n",
84 ptlrpc_fail_export(doomed_exp);
85 class_export_put(doomed_exp);
90 static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer,
91 unsigned long count, void *data)
93 struct obd_device *obd = data;
96 RETURN(mds_lov_update_config(obd, 0));
99 static int lprocfs_rd_last_fid(char *page, char **start, off_t off,
100 int count, int *eof, void *data)
102 struct obd_device *obd = (struct obd_device *)data;
103 struct mds_obd *mds = &obd->u.mds;
106 down(&mds->mds_last_fid_sem);
107 last_fid = mds->mds_last_fid;
108 up(&mds->mds_last_fid_sem);
111 return snprintf(page, count, LPD64"\n", last_fid);
114 static int lprocfs_rd_group(char *page, char **start, off_t off,
115 int count, int *eof, void *data)
117 struct obd_device *obd = (struct obd_device *)data;
118 struct mds_obd *mds = &obd->u.mds;
121 return snprintf(page, count, "%lu\n",
122 (unsigned long)mds->mds_num);
125 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
126 { "uuid", lprocfs_rd_uuid, 0, 0 },
127 { "blocksize", lprocfs_rd_blksize, 0, 0 },
128 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
129 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
130 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
131 { "fstype", lprocfs_rd_fstype, 0, 0 },
132 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
133 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
134 { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
135 { "last_fid", lprocfs_rd_last_fid, 0, 0 },
136 { "group", lprocfs_rd_group, 0, 0 },
137 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
138 { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
139 { "config_update", 0, lprocfs_mds_wr_config_update, 0 },
140 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
145 * group hash proc entries handler
147 static int lprocfs_wr_group_info(struct file *file, const char *buffer,
148 unsigned long count, void *data)
156 gid_t gids_local[NGROUPS_SMALL];
159 if (count != sizeof(param)) {
160 CERROR("invalid data size %lu\n", count);
163 if (copy_from_user(¶m, buffer, count)) {
164 CERROR("broken downcall\n");
167 if (param.ngroups > NGROUPS_MAX) {
168 CERROR("%d groups?\n", param.ngroups);
172 if (param.ngroups <= NGROUPS_SMALL)
175 OBD_ALLOC(gids, param.ngroups * sizeof(gid_t));
177 CERROR("fail to alloc memory for %d gids\n",
182 if (copy_from_user(gids, param.groups,
183 param.ngroups * sizeof(gid_t))) {
184 CERROR("broken downcall\n");
188 mds_handle_group_downcall(param.err, param.uid,
189 param.ngroups, gids);
192 if (gids && gids != gids_local)
193 OBD_FREE(gids, param.ngroups * sizeof(gid_t));
197 static int lprocfs_rd_expire(char *page, char **start, off_t off, int count,
198 int *eof, void *data)
200 struct mds_grp_hash *hash = __mds_get_global_group_hash();
203 return snprintf(page, count, "%d\n", hash->gh_entry_expire);
206 static int lprocfs_wr_expire(struct file *file, const char *buffer,
207 unsigned long count, void *data)
209 struct mds_grp_hash *hash = __mds_get_global_group_hash();
212 if (copy_from_user(buf, buffer, min(count, 32UL)))
215 sscanf(buf, "%d", &hash->gh_entry_expire);
219 static int lprocfs_rd_ac_expire(char *page, char **start, off_t off, int count,
220 int *eof, void *data)
222 struct mds_grp_hash *hash = __mds_get_global_group_hash();
225 return snprintf(page, count, "%d\n", hash->gh_acquire_expire);
228 static int lprocfs_wr_ac_expire(struct file *file, const char *buffer,
229 unsigned long count, void *data)
231 struct mds_grp_hash *hash = __mds_get_global_group_hash();
234 if (copy_from_user(buf, buffer, min(count, 32UL)))
237 sscanf(buf, "%d", &hash->gh_acquire_expire);
241 static int lprocfs_rd_hash_upcall(char *page, char **start, off_t off, int count,
242 int *eof, void *data)
244 struct mds_grp_hash *hash = __mds_get_global_group_hash();
247 return snprintf(page, count, "%s\n", hash->gh_upcall);
250 static int lprocfs_wr_hash_upcall(struct file *file, const char *buffer,
251 unsigned long count, void *data)
253 struct mds_grp_hash *hash = __mds_get_global_group_hash();
255 if (count < MDSGRP_UPCALL_MAXPATH) {
256 sscanf(buffer, "%1024s", hash->gh_upcall);
257 hash->gh_upcall[MDSGRP_UPCALL_MAXPATH-1] = 0;
262 static int lprocfs_wr_hash_flush(struct file *file, const char *buffer,
263 unsigned long count, void *data)
265 mds_group_hash_flush_idle();
269 static int lprocfs_rd_allow_setgroups(char *page, char **start, off_t off,
270 int count, int *eof, void *data)
272 struct mds_grp_hash *hash = __mds_get_global_group_hash();
275 return snprintf(page, count, "%d\n", hash->gh_allow_setgroups);
278 static int lprocfs_wr_allow_setgroups(struct file *file, const char *buffer,
279 unsigned long count, void *data)
281 struct mds_grp_hash *hash = __mds_get_global_group_hash();
285 if (copy_from_user(buf, buffer, min(count, 8UL)))
288 sscanf(buf, "%d", &val);
289 hash->gh_allow_setgroups = (val != 0);
293 struct lprocfs_vars lprocfs_mds_module_vars[] = {
294 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
295 { "grp_hash_expire_interval",lprocfs_rd_expire,
296 lprocfs_wr_expire, 0},
297 { "grp_hash_acquire_expire", lprocfs_rd_ac_expire,
298 lprocfs_wr_ac_expire, 0},
299 { "grp_hash_upcall", lprocfs_rd_hash_upcall,
300 lprocfs_wr_hash_upcall, 0},
301 { "grp_hash_flush", 0, lprocfs_wr_hash_flush, 0},
302 { "group_info", 0, lprocfs_wr_group_info, 0 },
303 { "allow_setgroups", lprocfs_rd_allow_setgroups,
304 lprocfs_wr_allow_setgroups, 0},
308 struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
309 { "uuid", lprocfs_rd_uuid, 0, 0 },
313 struct lprocfs_vars lprocfs_mdt_module_vars[] = {
314 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
319 struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars,
320 lprocfs_mds_obd_vars},
321 {lprocfs_mdt_module_vars,
322 lprocfs_mdt_obd_vars}};
324 LPROCFS_INIT_MULTI_VARS(lprocfs_array_vars,
325 (sizeof(lprocfs_array_vars) /
326 sizeof(struct lprocfs_static_vars)))