X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fmds%2Flproc_mds.c;h=343d3fea86048da1a711c1a7decf56375d7102ae;hp=9302240068df8a1b74f9f196321b1ab1782ecc3a;hb=d750891e478804bc495ffa075d771d1816369958;hpb=9b3798b29a15383422cb9649b04048ba10951a04 diff --git a/lustre/mds/lproc_mds.c b/lustre/mds/lproc_mds.c index 9302240..343d3fe 100644 --- a/lustre/mds/lproc_mds.c +++ b/lustre/mds/lproc_mds.c @@ -1,177 +1,191 @@ /* -*- 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 -#include -#include -#include -#include - -int rd_uuid(char* page, char **start, off_t off, - int count, int *eof, void *data) -{ - struct obd_device* temp=(struct obd_device*)data; - int len=0; - len+=snprintf(page, count, "%s\n", temp->obd_uuid); - return len; -} -int rd_blksize(char* page, char **start, off_t off, - int count, int *eof, void *data) -{ - struct obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; - } - len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_bsize)); - return len; -} -int rd_blktotal(char* page, char **start, off_t off, - int count, int *eof, void *data) +#include +#include +#include +#include +#include +#include "mds_internal.h" + +#ifdef LPROCFS +static int lprocfs_mds_rd_evictostnids(char *page, char **start, off_t off, + int count, int *eof, void *data) { - struct obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; - } - len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_blocks)); - return len; - + struct obd_device* obd = (struct obd_device *)data; + + LASSERT(obd != NULL); + + return snprintf(page, count, "%d\n", obd->u.mds.mds_evict_ost_nids); } -int rd_blkfree(char* page, char **start, off_t off, - int count, int *eof, void *data) +static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer, + unsigned long count, void *data) { - struct obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; - } - len+=snprintf(page, count, LPU64"\n", (__u64)(mystats.f_bfree)); - return len; - + struct obd_device *obd = data; + int val, rc; + + rc = lprocfs_write_helper(buffer, count, &val); + if (rc) + return rc; + + obd->u.mds.mds_evict_ost_nids = !!val; + + return count; } -int rd_kbfree(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* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, blk_size, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; + struct obd_device *obd = data; + struct mds_obd *mds = &obd->u.mds; + char tmpbuf[sizeof(struct obd_uuid)]; + struct ptlrpc_request_set *set; + int rc; + + sscanf(buffer, "%40s", tmpbuf); + + if (strncmp(tmpbuf, "nid:", 4) != 0) + return lprocfs_wr_evict_client(file, buffer, count, data); + + set = ptlrpc_prep_set(); + if (!set) + return -ENOMEM; + + 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); + + ptlrpc_check_set(NULL, set); } - blk_size=mystats.f_bsize; - len+=snprintf(page, count, LPU64"\n", \ - (__u64)((mystats.f_bfree)/(blk_size*1024))); - return len; - -} -int rd_fstype(char* page, char **start, off_t off, - int count, int *eof, void *data) -{ - struct obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - int len=0; - len+=snprintf(page, count, "%s\n", mds->mds_fstype); - return len; - + /* 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(); + + obd_export_evict_by_nid(obd, tmpbuf+4); + + + 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()); + + ptlrpc_set_destroy(set); + return count; } -int rd_ffiles(char* page, char **start, off_t off, - int count, int *eof, void *data) +static int lprocfs_wr_atime_diff(struct file *file, const char *buffer, + unsigned long count, void *data) { - struct obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; - } - - len+=snprintf(page, count, LPU64"\n", \ - (__u64)(mystats.f_files)); - return len; + struct obd_device *obd = data; + struct mds_obd *mds = &obd->u.mds; + char kernbuf[20], *end; + unsigned long diff = 0; + + 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; } -int rd_inodesfree(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 obd_device* temp=(struct obd_device*)data; - struct mds_obd *mds=&temp->u.mds; - struct statfs mystats; - int rc, len=0; - - rc = vfs_statfs(mds->mds_sb, &mystats); - if (rc) { - CERROR("mds: statfs failed: rc %d\n", rc); - return 0; - } - - len+=snprintf(page, count, LPU64"\n", \ - (__u64)(mystats.f_ffree)); - return len; + struct obd_device *obd = data; + struct mds_obd *mds = &obd->u.mds; + + *eof = 1; + return snprintf(page, count, "%lu\n", mds->mds_atime_diff); } -int rd_filesets(char* page, char **start, off_t off, - int count, int *eof, void *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 }, + { "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 }, + { 0 } +}; + +struct lprocfs_vars lprocfs_mdt_obd_vars[] = { + { "uuid", lprocfs_rd_uuid, 0, 0 }, + { 0 } +}; + +void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars) { - return 0; + lvars->module_vars = lprocfs_mds_module_vars; + lvars->obd_vars = lprocfs_mds_obd_vars; } -lprocfs_vars_t snmp_var_nm_1[]={ - {"snmp/uuid", rd_uuid, 0}, - {"snmp/f_blocksize",rd_blksize, 0}, - {"snmp/f_blockstotal",rd_blktotal, 0}, - {"snmp/f_blocksfree",rd_blkfree, 0}, - {"snmp/f_kbytesfree", rd_kbfree, 0}, - {"snmp/f_fstype", rd_fstype, 0}, - {"snmp/f_files", rd_ffiles, 0}, - {"snmp/f_inodesfree", rd_inodesfree, 0}, - {"snmp/f_filesets", rd_filesets, 0}, - {0} -}; + +#endif