X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmds%2Flproc_mds.c;h=343d3fea86048da1a711c1a7decf56375d7102ae;hb=d750891e478804bc495ffa075d771d1816369958;hp=d94d8cd6b2ad06d9f4e2c515361f97a6a07d803e;hpb=02751b1d3780ac724bbfbb93481491598194858a;p=fs%2Flustre-release.git diff --git a/lustre/mds/lproc_mds.c b/lustre/mds/lproc_mds.c index d94d8cd..343d3fe 100644 --- a/lustre/mds/lproc_mds.c +++ b/lustre/mds/lproc_mds.c @@ -1,306 +1,179 @@ /* -*- 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 (c) 2002, 2010, Oracle and/or its affiliates. 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} }; - -#else - -static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, - int count, int *eof, void *data) +#ifdef LPROCFS +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; LASSERT(obd != NULL); - LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname); - *eof = 1; - return snprintf(page, count, "%s\n", - obd->u.mds.mds_vfsmnt->mnt_devname); + return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids); } -static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer, +static int lprocfs_mds_wr_evictostnids(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)]; + int val, 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; -} + rc = lprocfs_write_helper(buffer, count, &val); + if (rc) + return rc; -static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - struct obd_device *obd = data; - ENTRY; + obd->u.mds.mds_evict_ost_nids = !!val; - RETURN(mds_lov_update_config(obd, 0)); + return count; } -static int lprocfs_rd_last_fid(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 = (struct obd_device *)data; + struct obd_device *obd = data; struct mds_obd *mds = &obd->u.mds; - __u64 last_fid; - - down(&mds->mds_last_fid_sem); - last_fid = mds->mds_last_fid; - up(&mds->mds_last_fid_sem); - - *eof = 1; - return snprintf(page, count, LPD64"\n", last_fid); -} + char tmpbuf[sizeof(struct obd_uuid)]; + struct ptlrpc_request_set *set; + int rc; -static int lprocfs_rd_group(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - struct obd_device *obd = (struct obd_device *)data; - struct mds_obd *mds = &obd->u.mds; + sscanf(buffer, "%40s", tmpbuf); - *eof = 1; - return snprintf(page, count, "%lu\n", (unsigned long)mds->mds_num); -} + if (strncmp(tmpbuf, "nid:", 4) != 0) + return lprocfs_wr_evict_client(file, buffer, count, data); -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 }, - { "last_fid", lprocfs_rd_last_fid, 0, 0 }, - { "group", lprocfs_rd_group, 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 }, - { 0 } -}; + set = ptlrpc_prep_set(); + if (!set) + return -ENOMEM; -/* - * 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; - } + 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); - 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; + ptlrpc_check_set(NULL, set); } - mds_handle_group_downcall(param.err, param.uid, - param.ngroups, gids); + /* 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(); -out: - if (gids && gids != gids_local) - OBD_FREE(gids, param.ngroups * sizeof(gid_t)); - return count; -} + obd_export_evict_by_nid(obd, tmpbuf+4); -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); -} + rc = ptlrpc_set_wait(set); + if (rc) + CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4, + rc); -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]; + 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]; - - if (copy_from_user(buf, buffer, min(count, 32UL))) - return count; - buf[31] = 0; - sscanf(buf, "%d", &hash->gh_acquire_expire); - return count; -} + struct obd_device *obd = data; + struct mds_obd *mds = &obd->u.mds; + char kernbuf[20], *end; + unsigned long diff = 0; -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); -} + if (cfs_copy_from_user(kernbuf, buffer, count)) + return -EFAULT; -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(); + kernbuf[count] = '\0'; - if (count < MDSGRP_UPCALL_MAXPATH) { - sscanf(buffer, "%1024s", hash->gh_upcall); - hash->gh_upcall[MDSGRP_UPCALL_MAXPATH-1] = 0; - } - return count; -} + diff = simple_strtoul(kernbuf, &end, 0); + if (kernbuf == end) + return -EINVAL; -static int lprocfs_wr_hash_flush(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - mds_group_hash_flush_idle(); + 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); + return snprintf(page, count, "%lu\n", mds->mds_atime_diff); } -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; -} +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_obd_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}, + { "num_refs", lprocfs_rd_numrefs, 0, 0 }, { 0 } }; @@ -309,17 +182,10 @@ struct lprocfs_vars lprocfs_mdt_obd_vars[] = { { 0 } }; -struct lprocfs_vars lprocfs_mdt_module_vars[] = { - { "num_refs", lprocfs_rd_numrefs, 0, 0 }, - { 0 } -}; -#endif /* LPROCFS */ - -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))) +#endif