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 mds_dt_update_config(obd, 0);
100 static int lprocfs_rd_filesopen(char *page, char **start, off_t off,
101 int count, int *eof, void *data)
103 struct obd_device *obd = data;
104 LASSERT(obd != NULL);
107 return snprintf(page, count, "%d\n",
108 atomic_read(&obd->u.mds.mds_open_count));
111 static int lprocfs_rd_last_fid(char *page, char **start, off_t off,
112 int count, int *eof, void *data)
114 struct obd_device *obd = (struct obd_device *)data;
115 struct mds_obd *mds = &obd->u.mds;
118 spin_lock(&mds->mds_last_fid_lock);
119 last_fid = mds->mds_last_fid;
120 spin_unlock(&mds->mds_last_fid_lock);
123 return snprintf(page, count, LPD64"\n", last_fid);
126 static int lprocfs_rd_group(char *page, char **start, off_t off,
127 int count, int *eof, void *data)
129 struct obd_device *obd = (struct obd_device *)data;
130 struct mds_obd *mds = &obd->u.mds;
133 return snprintf(page, count, "%lu\n",
134 (unsigned long)mds->mds_num);
137 static int lprocfs_rd_capa(char *page, char **start, off_t off,
138 int count, int *eof, void *data)
140 struct obd_device *obd = (struct obd_device *)data;
141 LASSERT(obd != NULL);
143 return snprintf(page, count, "%d\n",
144 obd->u.mds.mds_capa_stat);
147 static int lprocfs_wr_capa(struct file *file, const char *buffer,
148 unsigned long count, void *data)
150 struct obd_device *obd = data;
153 rc = lprocfs_write_helper(buffer, count, &val);
157 mds_update_capa_stat(obd, val);
161 static int lprocfs_rd_capa_timeout(char *page, char **start, off_t off,
162 int count, int *eof, void *data)
164 struct obd_device *obd = (struct obd_device *)data;
165 LASSERT(obd != NULL);
167 return snprintf(page, count, "%lu\n",
168 obd->u.mds.mds_capa_timeout);
171 static int lprocfs_wr_capa_timeout(struct file *file, const char *buffer,
172 unsigned long count, void *data)
174 struct obd_device *obd = data;
177 rc = lprocfs_write_helper(buffer, count, &val);
181 mds_update_capa_timeout(obd, val);
185 static int lprocfs_rd_capa_key_timeout(char *page, char **start, off_t off,
186 int count, int *eof, void *data)
188 struct obd_device *obd = (struct obd_device *)data;
189 LASSERT(obd != NULL);
191 return snprintf(page, count, "%lu\n",
192 obd->u.mds.mds_capa_key_timeout);
195 static int lprocfs_wr_capa_key_timeout(struct file *file, const char *buffer,
196 unsigned long count, void *data)
198 struct obd_device *obd = data;
201 rc = lprocfs_write_helper(buffer, count, &val);
205 rc = mds_update_capa_key_timeout(obd, val);
209 struct lprocfs_vars lprocfs_mds_obd_vars[] = {
210 { "uuid", lprocfs_rd_uuid, 0, 0 },
211 { "blocksize", lprocfs_rd_blksize, 0, 0 },
212 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
213 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
214 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
215 { "fstype", lprocfs_rd_fstype, 0, 0 },
216 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
217 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
218 { "filesopen", lprocfs_rd_filesopen, 0, 0 },
219 { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
220 { "last_fid", lprocfs_rd_last_fid, 0, 0 },
221 { "group", lprocfs_rd_group, 0, 0 },
222 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
223 { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
224 { "config_update", 0, lprocfs_mds_wr_config_update, 0 },
225 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
226 { "capa", lprocfs_rd_capa,
227 lprocfs_wr_capa, 0 },
228 { "capa_timeout", lprocfs_rd_capa_timeout,
229 lprocfs_wr_capa_timeout, 0 },
230 { "capa_key_timeout", lprocfs_rd_capa_key_timeout,
231 lprocfs_wr_capa_key_timeout, 0 },
236 * LSD proc entry handlers
238 static int lprocfs_wr_lsd_downcall(struct file *file, const char *buffer,
239 unsigned long count, void *data)
241 struct upcall_cache *cache = __mds_get_global_lsd_cache();
242 struct lsd_downcall_args param;
243 gid_t gids_local[NGROUPS_SMALL];
246 if (count != sizeof(param)) {
247 CERROR("invalid data size %lu\n", count);
248 goto do_err_downcall;
250 if (copy_from_user(¶m, buffer, count)) {
251 CERROR("broken downcall\n");
252 goto do_err_downcall;
256 CERROR("LSD downcall indicate error %d\n", param.err);
260 if (param.ngroups > NGROUPS_MAX) {
261 CERROR("%d groups too big\n", param.ngroups);
262 goto do_err_downcall;
265 if (param.ngroups <= NGROUPS_SMALL)
268 OBD_ALLOC(gids, param.ngroups * sizeof(gid_t));
270 CERROR("fail to alloc memory for %d gids\n",
272 goto do_err_downcall;
275 if (copy_from_user(gids, param.groups,
276 param.ngroups * sizeof(gid_t))) {
277 CERROR("broken downcall\n");
278 goto do_err_downcall;
284 upcall_cache_downcall(cache, (__u64) param.uid, ¶m);
286 if (gids && gids != gids_local)
287 OBD_FREE(gids, param.ngroups * sizeof(gid_t));
295 static int lprocfs_rd_lsd_expire(char *page, char **start, off_t off, int count,
296 int *eof, void *data)
298 struct upcall_cache *cache= __mds_get_global_lsd_cache();
301 return snprintf(page, count, "%lu\n", cache->uc_entry_expire);
303 static int lprocfs_wr_lsd_expire(struct file *file, const char *buffer,
304 unsigned long count, void *data)
306 struct upcall_cache *cache= __mds_get_global_lsd_cache();
309 if (copy_from_user(buf, buffer, min(count, 32UL)))
312 sscanf(buf, "%lu", &cache->uc_entry_expire);
316 static int lprocfs_rd_lsd_ac_expire(char *page, char **start, off_t off,
317 int count, int *eof, void *data)
319 struct upcall_cache *cache= __mds_get_global_lsd_cache();
322 return snprintf(page, count, "%lu\n", cache->uc_acquire_expire);
324 static int lprocfs_wr_lsd_ac_expire(struct file *file, const char *buffer,
325 unsigned long count, void *data)
327 struct upcall_cache *cache= __mds_get_global_lsd_cache();
330 if (copy_from_user(buf, buffer, min(count, 32UL)))
333 sscanf(buf, "%lu", &cache->uc_acquire_expire);
337 static int lprocfs_rd_lsd_upcall(char *page, char **start, off_t off, int count,
338 int *eof, void *data)
340 struct upcall_cache *cache= __mds_get_global_lsd_cache();
343 return snprintf(page, count, "%s\n", cache->uc_upcall);
345 static int lprocfs_wr_lsd_upcall(struct file *file, const char *buffer,
346 unsigned long count, void *data)
348 struct upcall_cache *cache= __mds_get_global_lsd_cache();
350 if (count < UC_CACHE_UPCALL_MAXPATH) {
351 sscanf(buffer, "%1024s", cache->uc_upcall);
352 cache->uc_upcall[UC_CACHE_UPCALL_MAXPATH - 1] = 0;
357 extern void lgss_svc_cache_flush(__u32 uid);
358 static int lprocfs_wr_lsd_flush(struct file *file, const char *buffer,
359 unsigned long count, void *data)
364 if (copy_from_user(buf, buffer, min(count, 32UL)))
367 sscanf(buf, "%d", &uid);
371 lgss_svc_cache_flush(uid);
377 * remote acl proc handling
379 static int lprocfs_rd_lacl_upcall(char *page, char **start, off_t off,
380 int count, int *eof, void *data)
382 struct upcall_cache *cache = __mds_get_global_rmtacl_upcall_cache();
385 return snprintf(page, count, "%s\n", cache->uc_upcall);
388 static int lprocfs_wr_lacl_upcall(struct file *file, const char *buffer,
389 unsigned long count, void *data)
391 struct upcall_cache *cache = __mds_get_global_rmtacl_upcall_cache();
393 if (count < UC_CACHE_UPCALL_MAXPATH) {
394 sscanf(buffer, "%1024s", cache->uc_upcall);
395 cache->uc_upcall[UC_CACHE_UPCALL_MAXPATH - 1] = 0;
400 static int lprocfs_wr_lacl_downcall(struct file *file, const char *buffer,
401 unsigned long count, void *data)
403 struct upcall_cache *cache = __mds_get_global_rmtacl_upcall_cache();
404 struct rmtacl_downcall_args param;
406 if (count != sizeof(param)) {
407 CERROR("invalid data size %lu\n", count);
408 goto do_err_downcall;
410 if (copy_from_user(¶m, buffer, count)) {
411 CERROR("broken downcall\n");
412 goto do_err_downcall;
416 upcall_cache_downcall(cache, param.key, ¶m);
420 memset(¶m, 0, sizeof(param));
421 param.status = -EINVAL;
425 struct lprocfs_vars lprocfs_mds_module_vars[] = {
426 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
428 { "lsd_expire_interval", lprocfs_rd_lsd_expire,
429 lprocfs_wr_lsd_expire, 0},
430 { "lsd_acquire_expire", lprocfs_rd_lsd_ac_expire,
431 lprocfs_wr_lsd_ac_expire, 0},
432 { "lsd_upcall", lprocfs_rd_lsd_upcall,
433 lprocfs_wr_lsd_upcall, 0},
434 { "lsd_flush", 0, lprocfs_wr_lsd_flush, 0},
435 { "lsd_downcall", 0, lprocfs_wr_lsd_downcall, 0},
437 { "lacl_upcall", lprocfs_rd_lacl_upcall,
438 lprocfs_wr_lacl_upcall, 0},
439 { "lacl_downcall", 0, lprocfs_wr_lacl_downcall, 0},
443 struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
444 { "uuid", lprocfs_rd_uuid, 0, 0 },
448 struct lprocfs_vars lprocfs_mdt_module_vars[] = {
449 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
454 struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars,
455 lprocfs_mds_obd_vars},
456 {lprocfs_mdt_module_vars,
457 lprocfs_mdt_obd_vars}};
459 LPROCFS_INIT_MULTI_VARS(lprocfs_array_vars,
460 (sizeof(lprocfs_array_vars) /
461 sizeof(struct lprocfs_static_vars)))