X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmds%2Flproc_mds.c;h=5504ea1105b304e4ff589b2a5a62feea27a4dc1e;hp=1cff1c461b59443e851cb9b0503257feed9e7129;hb=2deb4f149f4601f9128fd39efd4705573520f277;hpb=cc28cf202635ddda1a342357ab6431e5569c8179 diff --git a/lustre/mds/lproc_mds.c b/lustre/mds/lproc_mds.c index 1cff1c4..5504ea1 100644 --- a/lustre/mds/lproc_mds.c +++ b/lustre/mds/lproc_mds.c @@ -1,270 +1,186 @@ /* -*- 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 -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) #include -#endif -#include -#include -#include +#include +#include +#include #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) +#ifdef LPROCFS +static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count, + int *eof, void *data) { - 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_NAME_COUNT, "mds_getattr_name" }, - { MDS_SETATTR_COUNT, "mds_setattr" }, - { MDS_RENAME_COUNT, "mds_rename" }, - { MDS_STATFS_COUNT, "mds_statfs" }, -}; + struct obd_device* obd = (struct obd_device *)data; -const char* ll_mds_count_opcode2str(__u32 opcode) -{ - __u32 offset = opcode; + LASSERT(obd != NULL); + LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname); + *eof = 1; - LASSERT(offset < MDS_LAST_OPC_COUNT); - LASSERT(ll_mdscounters_opcode_table[offset].opcode == opcode); - return ll_mdscounters_opcode_table[offset].opname; + return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname); } -struct lprocfs_stats * lprocfs_alloc_mds_counters() +static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off, + int count, int *eof, void *data) { - struct lprocfs_stats *counters; - int i; + struct obd_device* obd = (struct obd_device *)data; - counters = lprocfs_alloc_stats(MDS_LAST_OPC_COUNT); + LASSERT(obd != NULL); - for (i = 0; i < MDS_LAST_OPC_COUNT; i ++) { - lprocfs_counter_init(counters, i, 0, - (char *)ll_mds_count_opcode2str(i), "reqs"); - } - return counters; + return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids); } -void lprocfs_free_mds_counters(struct lprocfs_stats *ptr) +static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer, + unsigned long count, void *data) { - lprocfs_free_stats(ptr); -} + struct obd_device *obd = data; + int val, rc; -static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - struct obd_device* obd = (struct obd_device *)data; + rc = lprocfs_write_helper(buffer, count, &val); + if (rc) + return rc; - LASSERT(obd != NULL); - LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname); - *eof = 1; + obd->u.mds.mds_evict_ost_nids = !!val; - return snprintf(page, count, "%s\n",obd->u.mds.mds_vfsmnt->mnt_devname); + return count; } -static int lprocfs_mds_rd_recovery_status(char *page, char **start, off_t off, - int count, int *eof, void *data) +static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer, + unsigned long count, void *data) { struct obd_device *obd = data; - int len = 0, n, - connected = obd->obd_connected_clients, - max_recoverable = obd->obd_max_recoverable_clients, - recoverable = obd->obd_recoverable_clients, - completed = max_recoverable - recoverable, - queue_len = obd->obd_requests_queued_for_recovery, - replayed = obd->obd_replayed_requests; - __u64 next_transno = obd->obd_next_recovery_transno; + struct mds_obd *mds = &obd->u.mds; + char tmpbuf[sizeof(struct obd_uuid)]; + struct ptlrpc_request_set *set; + int rc; - LASSERT(obd != NULL); - *eof = 1; + sscanf(buffer, "%40s", tmpbuf); - n = snprintf(page, count, "status: "); - page += n; len += n; count -= n; - if (obd->obd_max_recoverable_clients == 0) { - n = snprintf(page, count, "INACTIVE\n"); - return len + n; - } + if (strncmp(tmpbuf, "nid:", 4) != 0) + return lprocfs_wr_evict_client(file, buffer, count, data); - if (obd->obd_recoverable_clients == 0) { - n = snprintf(page, count, "COMPLETE\n"); - page += n; len += n; count -= n; - n = snprintf(page, count, "recovered_clients: %d\n", - max_recoverable); - page += n; len += n; count -= n; - n = snprintf(page, count, "last_transno: "LPD64"\n", - next_transno - 1); - page += n; len += n; count -= n; - n = snprintf(page, count, "replayed_requests: %d\n", replayed); - return len + n; - } + set = ptlrpc_prep_set(); + if (!set) + return -ENOMEM; - /* sampled unlocked, but really... */ - if (obd->obd_recovering == 0) { - n = snprintf(page, count, "ABORTED\n"); - return len + n; - } + 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); - n = snprintf(page, count, "RECOVERING\n"); - page += n; len += n; count -= n; - n = snprintf(page, count, "connected_clients: %d/%d\n", - connected, max_recoverable); - page += n; len += n; count -= n; - n = snprintf(page, count, "completed_clients: %d/%d\n", - completed, max_recoverable); - page += n; len += n; count -= n; - n = snprintf(page, count, "replayed_requests: %d/??\n", replayed); - page += n; len += n; count -= n; - n = snprintf(page, count, "queued_requests: %d\n", queue_len); - page += n; len += n; count -= n; - n = snprintf(page, count, "next_transno: "LPD64"\n", next_transno); - return len + n; -} + ptlrpc_check_set(NULL, set); + } -static int lprocfs_rd_mds_counters(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; + /* 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(); - LASSERT(obd != NULL); - if (obd->u.mds.mds_counters == NULL) - return 0; + obd_export_evict_by_nid(obd, tmpbuf+4); - do_gettimeofday(&now); - n = snprintf(page, count, "%-25s %lu.%lu secs.usecs\n", - "snapshot_time", now.tv_sec, now.tv_usec); - page += n; len +=n; count -=n; + rc = ptlrpc_set_wait(set); + if (rc) + CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4, + rc); - stats = obd->u.mds.mds_counters; + LPROCFS_ENTRY(); + class_decref(obd, __FUNCTION__, cfs_current()); - *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); + ptlrpc_set_destroy(set); + return count; } -static int lprocfs_mds_wr_evict_client(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 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 kernbuf[20], *end; + unsigned long diff = 0; - 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); - } + if (count > (sizeof(kernbuf) - 1)) + return -EINVAL; + + if (cfs_copy_from_user(kernbuf, buffer, count)) + return -EFAULT; + + kernbuf[count] = '\0'; + + diff = simple_strtoul(kernbuf, &end, 0); + if (kernbuf == end) + return -EINVAL; + + mds->mds_atime_diff = diff; return count; } -static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer, - unsigned long count, void *data) +static int lprocfs_rd_atime_diff(char *page, char **start, off_t off, + int count, int *eof, void *data) { struct obd_device *obd = data; - ENTRY; + struct mds_obd *mds = &obd->u.mds; - RETURN(mds_lov_update_config(obd, 0)); + *eof = 1; + 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 }, - { "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_mds_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 }, + { "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 } }; @@ -283,14 +199,38 @@ struct lprocfs_vars lprocfs_mdt_module_vars[] = { { 0 } }; +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); -#endif +} -struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars, - lprocfs_mds_obd_vars}, - {lprocfs_mdt_module_vars, - lprocfs_mdt_obd_vars}}; +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"); +} + +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