/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_CLASS
#include <linux/version.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
#include <asm/statfs.h>
-#endif
-#include <linux/obd.h>
-#include <linux/obd_class.h>
-#include <linux/lprocfs_status.h>
+#include <obd.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
#include "mds_internal.h"
-#ifndef LPROCFS
-struct lprocfs_vars lprocfs_mds_obd_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mds_module_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mdt_obd_vars[] = { {0} };
-struct lprocfs_vars lprocfs_mdt_module_vars[] = { {0} };
-
-atomic_t * lprocfs_alloc_mds_counters()
-{
- return NULL;
-}
-void lprocfs_free_mds_counters(atomic_t *ptr)
-{
- return;
-}
-
-#else
-
-struct ll_mdscounters_opcode {
- __u32 opcode;
- const char *opname;
-} ll_mdscounters_opcode_table[MDS_LAST_OPC_COUNT] = {
- { MDS_OPEN_COUNT, "mds_open" },
- { MDS_CREATE_COUNT, "mds_create" },
- { MDS_CLOSE_COUNT, "mds_close" },
- { MDS_LINK_COUNT, "mds_link" },
- { MDS_UNLINK_COUNT, "mds_unlink" },
- { MDS_GETATTR_COUNT, "mds_getattr" },
- { MDS_GETATTR_LOCK_COUNT, "mds_getattr_lock" },
- { MDS_SETATTR_COUNT, "mds_setattr" },
- { MDS_RENAME_COUNT, "mds_rename" },
- { MDS_STATFS_COUNT, "mds_statfs" },
-};
-
-const char* ll_mds_count_opcode2str(__u32 opcode)
-{
- __u32 offset = opcode;
-
- LASSERT(offset < MDS_LAST_OPC_COUNT);
- LASSERT(ll_mdscounters_opcode_table[offset].opcode == opcode);
- return ll_mdscounters_opcode_table[offset].opname;
-}
-
-struct lprocfs_stats * lprocfs_alloc_mds_counters()
-{
- struct lprocfs_stats *counters;
- int i;
-
- counters = lprocfs_alloc_stats(MDS_LAST_OPC_COUNT);
-
- for (i = 0; i < MDS_LAST_OPC_COUNT; i ++) {
- lprocfs_counter_init(counters, i, 0,
- (char *)ll_mds_count_opcode2str(i), "reqs");
- }
- return counters;
-}
-
-void lprocfs_free_mds_counters(struct lprocfs_stats *ptr)
-{
- lprocfs_free_stats(ptr);
-}
-
+#ifdef LPROCFS
static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname);
}
-static int lprocfs_rd_mds_counters(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct obd_device* obd = (struct obd_device *)data;
- int len = 0, n, i, j;
- struct lprocfs_counter t, ret = { .lc_min = ~(__u64)0 };
- struct lprocfs_stats *stats;
- struct timeval now;
LASSERT(obd != NULL);
- if (obd->u.mds.mds_counters == NULL)
- return 0;
- do_gettimeofday(&now);
+ return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids);
+}
- n = snprintf(page, count, "%-25s %lu.%lu secs.usecs\n",
- "snapshot_time", now.tv_sec, now.tv_usec);
- page += n; len +=n; count -=n;
+static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ int val, rc;
- stats = obd->u.mds.mds_counters;
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
- *eof = 1;
- for (i = 0; i < MDS_LAST_OPC_COUNT; i ++) {
- ret.lc_count = 0;
- for (j = 0; j < num_online_cpus(); j++) {
- struct lprocfs_counter *percpu_cntr =
- &(stats->ls_percpu[j])->lp_cntr[i];
- int centry;
- do {
- centry =
- atomic_read(&percpu_cntr->lc_cntl.la_entry);
- t.lc_count = percpu_cntr->lc_count;
- } while (centry !=
- atomic_read(&percpu_cntr->lc_cntl.la_entry) &&
- centry !=
- atomic_read(&percpu_cntr->lc_cntl.la_exit));
- ret.lc_count += t.lc_count;
- }
- n = snprintf(page, count, "%-25s "LPU64" \n",
- ll_mds_count_opcode2str(i), ret.lc_count);
- page += n; len +=n; count -=n;
- }
- return (len);
+ obd->u.mds.mds_evict_ost_nids = !!val;
+
+ return count;
}
static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = data;
- struct obd_export *doomed_exp = NULL;
- struct obd_uuid doomed;
- struct list_head *p;
- char tmpbuf[sizeof(doomed)];
+ struct mds_obd *mds = &obd->u.mds;
+ char tmpbuf[sizeof(struct obd_uuid)];
+ struct ptlrpc_request_set *set;
+ int rc;
sscanf(buffer, "%40s", tmpbuf);
- obd_str2uuid(&doomed, tmpbuf);
-
- spin_lock(&obd->obd_dev_lock);
- list_for_each(p, &obd->obd_exports) {
- doomed_exp = list_entry(p, struct obd_export, exp_obd_chain);
- if (obd_uuid_equals(&doomed, &doomed_exp->exp_client_uuid)) {
- class_export_get(doomed_exp);
- break;
- }
- doomed_exp = NULL;
- }
- spin_unlock(&obd->obd_dev_lock);
-
- if (doomed_exp == NULL) {
- CERROR("can't disconnect %s: no export found\n",
- doomed.uuid);
- } else {
- CERROR("evicting %s at adminstrative request\n",
- doomed.uuid);
- ptlrpc_fail_export(doomed_exp);
- class_export_put(doomed_exp);
- }
- return count;
-}
-static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = data;
- ENTRY;
+ if (strncmp(tmpbuf, "nid:", 4) != 0)
+ return lprocfs_wr_evict_client(file, buffer, count, data);
- RETURN(mds_lov_update_config(obd, 0));
-}
+ set = ptlrpc_prep_set();
+ if (!set)
+ return -ENOMEM;
-struct lprocfs_vars lprocfs_mds_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
- { "blocksize", lprocfs_rd_blksize, 0, 0 },
- { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
- { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
- { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
- { "fstype", lprocfs_rd_fstype, 0, 0 },
- { "filestotal", lprocfs_rd_filestotal, 0, 0 },
- { "filesfree", lprocfs_rd_filesfree, 0, 0 },
- { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
- { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
- { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
- { "config_update", 0, lprocfs_mds_wr_config_update, 0 },
- { "num_exports", lprocfs_rd_num_exports, 0, 0 },
- { "counters", lprocfs_rd_mds_counters, 0, 0 },
- { 0 }
-};
+ if (obd->u.mds.mds_evict_ost_nids) {
+ rc = obd_set_info_async(mds->mds_lov_exp,
+ sizeof(KEY_EVICT_BY_NID),
+ KEY_EVICT_BY_NID, strlen(tmpbuf + 4) + 1,
+ tmpbuf + 4, set);
+ if (rc)
+ CERROR("Failed to evict nid %s from OSTs: rc %d\n",
+ tmpbuf + 4, rc);
-/*
- * group hash proc entries handler
- */
-static int lprocfs_wr_group_info(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct {
- int err;
- uid_t uid;
- uint32_t ngroups;
- gid_t *groups;
- } param;
- gid_t gids_local[NGROUPS_SMALL];
- gid_t *gids = NULL;
-
- if (count != sizeof(param)) {
- CERROR("invalid data size %lu\n", count);
- return count;
- }
- if (copy_from_user(¶m, buffer, count)) {
- CERROR("broken downcall\n");
- return count;
- }
- if (param.ngroups > NGROUPS_MAX) {
- CERROR("%d groups?\n", param.ngroups);
- return count;
+ ptlrpc_check_set(NULL, set);
}
- if (param.ngroups <= NGROUPS_SMALL)
- gids = gids_local;
- else {
- OBD_ALLOC(gids, param.ngroups * sizeof(gid_t));
- if (!gids) {
- CERROR("fail to alloc memory for %d gids\n",
- param.ngroups);
- return count;
- }
- }
- if (copy_from_user(gids, param.groups,
- param.ngroups * sizeof(gid_t))) {
- CERROR("broken downcall\n");
- goto out;
- }
+ /* See the comments in function lprocfs_wr_evict_client()
+ * in ptlrpc/lproc_ptlrpc.c for details. - jay */
+ class_incref(obd, __FUNCTION__, cfs_current());
+ LPROCFS_EXIT();
- mds_handle_group_downcall(param.err, param.uid,
- param.ngroups, gids);
+ obd_export_evict_by_nid(obd, tmpbuf+4);
-out:
- if (gids && gids != gids_local)
- OBD_FREE(gids, param.ngroups * sizeof(gid_t));
- return count;
-}
-static int lprocfs_rd_expire(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
- *eof = 1;
- return snprintf(page, count, "%d\n", hash->gh_entry_expire);
-}
-static int lprocfs_wr_expire(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
- char buf[32];
+ rc = ptlrpc_set_wait(set);
+ if (rc)
+ CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
+ rc);
+
+ LPROCFS_ENTRY();
+ class_decref(obd, __FUNCTION__, cfs_current());
- if (copy_from_user(buf, buffer, min(count, 32UL)))
- return count;
- buf[31] = 0;
- sscanf(buf, "%d", &hash->gh_entry_expire);
+ ptlrpc_set_destroy(set);
return count;
}
-static int lprocfs_rd_ac_expire(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
- *eof = 1;
- return snprintf(page, count, "%d\n", hash->gh_acquire_expire);
-}
-static int lprocfs_wr_ac_expire(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int lprocfs_wr_atime_diff(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
- char buf[32];
+ struct obd_device *obd = data;
+ struct mds_obd *mds = &obd->u.mds;
+ char kernbuf[20], *end;
+ unsigned long diff = 0;
- if (copy_from_user(buf, buffer, min(count, 32UL)))
- return count;
- buf[31] = 0;
- sscanf(buf, "%d", &hash->gh_acquire_expire);
- return count;
-}
-static int lprocfs_rd_hash_upcall(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
+ if (count > (sizeof(kernbuf) - 1))
+ return -EINVAL;
- *eof = 1;
- return snprintf(page, count, "%s\n", hash->gh_upcall);
-}
-static int lprocfs_wr_hash_upcall(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
+ if (cfs_copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
- if (count < MDSGRP_UPCALL_MAXPATH) {
- sscanf(buffer, "%1024s", hash->gh_upcall);
- hash->gh_upcall[MDSGRP_UPCALL_MAXPATH-1] = 0;
- }
- return count;
-}
-static int lprocfs_wr_hash_flush(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- mds_group_hash_flush_idle();
+ kernbuf[count] = '\0';
+
+ diff = simple_strtoul(kernbuf, &end, 0);
+ if (kernbuf == end)
+ return -EINVAL;
+
+ mds->mds_atime_diff = diff;
return count;
}
-static int lprocfs_rd_allow_setgroups(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static int lprocfs_rd_atime_diff(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
+ struct obd_device *obd = data;
+ struct mds_obd *mds = &obd->u.mds;
*eof = 1;
- return snprintf(page, count, "%d\n", hash->gh_allow_setgroups);
-}
-static int lprocfs_wr_allow_setgroups(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct mds_grp_hash *hash = __mds_get_global_group_hash();
- char buf[8];
- int val;
-
- if (copy_from_user(buf, buffer, min(count, 8UL)))
- return count;
- buf[7] = 0;
- sscanf(buf, "%d", &val);
- hash->gh_allow_setgroups = (val != 0);
- return count;
+ return snprintf(page, count, "%lu\n", mds->mds_atime_diff);
}
+struct lprocfs_vars lprocfs_mds_obd_vars[] = {
+ { "uuid", lprocfs_rd_uuid, 0, 0 },
+ { "blocksize", lprocfs_rd_blksize, 0, 0 },
+ { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
+ { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
+ { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
+ { "filestotal", lprocfs_rd_filestotal, 0, 0 },
+ { "filesfree", lprocfs_rd_filesfree, 0, 0 },
+ { "fstype", lprocfs_rd_fstype, 0, 0 },
+ { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 },
+ { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
+ { "hash_stats", lprocfs_obd_rd_hash, 0, 0 },
+ { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 },
+ { "evict_ost_nids", lprocfs_mds_rd_evictostnids,
+ lprocfs_mds_wr_evictostnids, 0 },
+ { "num_exports", lprocfs_rd_num_exports, 0, 0 },
+ { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
+ { 0 }
+};
+
struct lprocfs_vars lprocfs_mds_module_vars[] = {
{ "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { "grp_hash_expire_interval", lprocfs_rd_expire, lprocfs_wr_expire, 0},
- { "grp_hash_acquire_expire", lprocfs_rd_ac_expire,
- lprocfs_wr_ac_expire, 0},
- { "grp_hash_upcall", lprocfs_rd_hash_upcall, lprocfs_wr_hash_upcall, 0},
- { "grp_hash_flush", 0, lprocfs_wr_hash_flush, 0},
- { "group_info", 0, lprocfs_wr_group_info, 0 },
- { "allow_setgroups", lprocfs_rd_allow_setgroups,
- lprocfs_wr_allow_setgroups, 0},
{ 0 }
};
{ 0 }
};
-#endif /* LPROCFS */
+void mds_counter_incr(struct obd_export *exp, int opcode)
+{
+ if (exp->exp_obd && exp->exp_obd->obd_stats)
+ lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
+ if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
+ lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);
+
+}
+
+void mds_stats_counter_init(struct lprocfs_stats *stats)
+{
+ lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
+ lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
+}
-struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars,
- lprocfs_mds_obd_vars},
- {lprocfs_mdt_module_vars,
- lprocfs_mdt_obd_vars}};
+void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
+{
+ lvars->module_vars = lprocfs_mds_module_vars;
+ lvars->obd_vars = lprocfs_mds_obd_vars;
+}
-LPROCFS_INIT_MULTI_VARS(lprocfs_array_vars,
- (sizeof(lprocfs_array_vars) /
- sizeof(struct lprocfs_static_vars)))
+void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
+{
+ lvars->module_vars = lprocfs_mdt_module_vars;
+ lvars->obd_vars = lprocfs_mdt_obd_vars;
+}
+#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff