X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flmv%2Flproc_lmv.c;h=d313145ac3ea5fa35ec1cf8954fb3cd21ac0e95f;hb=68fb53ad4bb2dbc2104d19613546ecf2534d97d5;hp=8b0172754deb7b587a242f2d1af1136beffa3d05;hpb=f2b264f2049554d69c1cc6f0c0ebc5d3e196a068;p=fs%2Flustre-release.git diff --git a/lustre/lmv/lproc_lmv.c b/lustre/lmv/lproc_lmv.c index 8b01727..d313145 100644 --- a/lustre/lmv/lproc_lmv.c +++ b/lustre/lmv/lproc_lmv.c @@ -1,153 +1,298 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (C) 2002, 2003 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of Lustre, http://www.lustre.org. + * 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 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 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). * - * 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. + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.gnu.org/licenses/gpl-2.0.html * - * 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. + * GPL HEADER END + */ +/* + * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2012, 2017, Intel Corporation. + */ +/* + * 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 #include -#ifndef LPROCFS -static struct lprocfs_vars lprocfs_module_vars[] = { {0} }; -static struct lprocfs_vars lprocfs_obd_vars[] = { {0} }; -#else -static int lmv_rd_numobd(char *page, char **start, off_t off, int count, - int *eof, void *data) +#include "lmv_internal.h" + +static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct obd_device *dev = (struct obd_device*)data; - struct lmv_desc *desc; + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + + return scnprintf(buf, PAGE_SIZE, "%u\n", obd->u.lmv.lmv_mdt_count); +} +LUSTRE_RO_ATTR(numobd); - LASSERT(dev != NULL); - desc = &dev->u.lmv.desc; - *eof = 1; - return snprintf(page, count, "%u\n", desc->ld_tgt_count); +static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + return scnprintf(buf, PAGE_SIZE, "%u\n", + obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count); } +LUSTRE_RO_ATTR(activeobd); -static int lmv_rd_activeobd(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t desc_uuid_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct obd_device* dev = (struct obd_device*)data; - struct lmv_desc *desc; + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); - LASSERT(dev != NULL); - desc = &dev->u.lmv.desc; - *eof = 1; - return snprintf(page, count, "%u\n", desc->ld_active_tgt_count); + return scnprintf(buf, PAGE_SIZE, "%s\n", + obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_uuid.uuid); } +LUSTRE_RO_ATTR(desc_uuid); -static int lmv_rd_desc_uuid(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t qos_maxage_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - struct obd_device *dev = (struct obd_device*) data; - struct lmv_obd *lmv; + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); - LASSERT(dev != NULL); - lmv = &dev->u.lmv; - *eof = 1; - return snprintf(page, count, "%s\n", lmv->desc.ld_uuid.uuid); + return scnprintf(buf, PAGE_SIZE, "%u\n", + obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage); } +static ssize_t qos_maxage_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + unsigned int val; + int rc; + + rc = kstrtouint(buffer, 0, &val); + if (rc) + return rc; + + obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage = val; + + return count; +} +LUSTRE_RW_ATTR(qos_maxage); + +static ssize_t qos_prio_free_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + + return scnprintf(buf, PAGE_SIZE, "%u%%\n", + (obd->u.lmv.lmv_qos.lq_prio_free * 100 + 255) >> 8); +} + +static ssize_t qos_prio_free_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + struct lmv_obd *lmv = &obd->u.lmv; + unsigned int val; + int rc; + + rc = kstrtouint(buffer, 0, &val); + if (rc) + return rc; + + if (val > 100) + return -EINVAL; + + lmv->lmv_qos.lq_prio_free = (val << 8) / 100; + set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags); + set_bit(LQ_RESET, &lmv->lmv_qos.lq_flags); + + return count; +} +LUSTRE_RW_ATTR(qos_prio_free); + +static ssize_t qos_threshold_rr_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + + return scnprintf(buf, PAGE_SIZE, "%u%%\n", + (obd->u.lmv.lmv_qos.lq_threshold_rr * 100 + 255) >> 8); +} + +static ssize_t qos_threshold_rr_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct obd_device *obd = container_of(kobj, struct obd_device, + obd_kset.kobj); + struct lmv_obd *lmv = &obd->u.lmv; + unsigned int val; + int rc; + + rc = kstrtouint(buffer, 0, &val); + if (rc) + return rc; + + if (val > 100) + return -EINVAL; + + lmv->lmv_qos.lq_threshold_rr = (val << 8) / 100; + set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags); + + return count; +} +LUSTRE_RW_ATTR(qos_threshold_rr); + +#ifdef CONFIG_PROC_FS static void *lmv_tgt_seq_start(struct seq_file *p, loff_t *pos) { - struct obd_device *dev = p->private; - struct lmv_obd *lmv = &dev->u.lmv; + struct obd_device *obd = p->private; + struct lmv_obd *lmv = &obd->u.lmv; + struct lu_tgt_desc *tgt; + + while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) { + tgt = lmv_tgt(lmv, (__u32)*pos); + if (tgt) + return tgt; - return (*pos >= lmv->desc.ld_tgt_count) ? NULL : &(lmv->tgts[*pos]); + ++*pos; + } + return NULL; } static void lmv_tgt_seq_stop(struct seq_file *p, void *v) { - return; } static void *lmv_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos) { - struct obd_device *dev = p->private; - struct lmv_obd *lmv = &dev->u.lmv; + struct obd_device *obd = p->private; + struct lmv_obd *lmv = &obd->u.lmv; + struct lu_tgt_desc *tgt; + + ++*pos; + while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) { + tgt = lmv_tgt(lmv, (__u32)*pos); + if (tgt) + return tgt; - ++*pos; - return (*pos >=lmv->desc.ld_tgt_count) ? NULL : &(lmv->tgts[*pos]); + ++*pos; + } + + return NULL; } static int lmv_tgt_seq_show(struct seq_file *p, void *v) { - struct lmv_tgt_desc *tgt = v; - struct obd_device *dev = p->private; - struct lmv_obd *lmv = &dev->u.lmv; - int idx = tgt - &(lmv->tgts[0]); - - return seq_printf(p, "%d: %s %sACTIVE\n", idx, tgt->ltd_uuid.uuid, - tgt->ltd_active ? "" : "IN"); + struct lmv_tgt_desc *tgt = v; + + if (!tgt) + return 0; + + seq_printf(p, "%u: %s %sACTIVE\n", + tgt->ltd_index, tgt->ltd_uuid.uuid, + tgt->ltd_active ? "" : "IN"); + return 0; } -struct seq_operations lmv_tgt_sops = { - .start = lmv_tgt_seq_start, - .stop = lmv_tgt_seq_stop, - .next = lmv_tgt_seq_next, - .show = lmv_tgt_seq_show, +static const struct seq_operations lmv_tgt_sops = { + .start = lmv_tgt_seq_start, + .stop = lmv_tgt_seq_stop, + .next = lmv_tgt_seq_next, + .show = lmv_tgt_seq_show, }; static int lmv_target_seq_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *seq; - int rc = seq_open(file, &lmv_tgt_sops); + struct seq_file *seq; + int rc; + rc = seq_open(file, &lmv_tgt_sops); if (rc) return rc; - seq = file->private_data; - seq->private = dp->data; - - return 0; + seq = file->private_data; + seq->private = PDE_DATA(inode); + return 0; } -struct lprocfs_vars lprocfs_lmv_obd_vars[] = { - { "numobd", lmv_rd_numobd, 0, 0 }, - { "activeobd", lmv_rd_activeobd, 0, 0 }, - { "uuid", lprocfs_rd_uuid, 0, 0 }, - { "desc_uuid", lmv_rd_desc_uuid, 0, 0 }, - { 0 } -}; - -static struct lprocfs_vars lprocfs_lmv_module_vars[] = { - { "num_refs", lprocfs_rd_numrefs, 0, 0 }, - { 0 } +static const struct file_operations lmv_proc_target_fops = { + .owner = THIS_MODULE, + .open = lmv_target_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, }; +#endif /* CONFIG_PROC_FS */ -struct file_operations lmv_proc_target_fops = { - .owner = THIS_MODULE, - .open = lmv_target_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, +static struct attribute *lmv_attrs[] = { + &lustre_attr_activeobd.attr, + &lustre_attr_desc_uuid.attr, + &lustre_attr_numobd.attr, + &lustre_attr_qos_maxage.attr, + &lustre_attr_qos_prio_free.attr, + &lustre_attr_qos_threshold_rr.attr, + NULL, }; -#endif /* LPROCFS */ -void lprocfs_lmv_init_vars(struct lprocfs_static_vars *lvars) +int lmv_tunables_init(struct obd_device *obd) { - lvars->module_vars = lprocfs_lmv_module_vars; - lvars->obd_vars = lprocfs_lmv_obd_vars; + int rc; + + obd->obd_ktype.default_attrs = lmv_attrs; + rc = lprocfs_obd_setup(obd, true); + if (rc) + goto out_failed; +#ifdef CONFIG_PROC_FS + rc = lprocfs_alloc_md_stats(obd, 0); + if (rc) { + lprocfs_obd_cleanup(obd); + goto out_failed; + } + + rc = lprocfs_seq_create(obd->obd_proc_entry, "target_obd", + 0444, &lmv_proc_target_fops, obd); + if (rc) { + lprocfs_free_md_stats(obd); + lprocfs_obd_cleanup(obd); + CWARN("%s: error adding LMV target_obd file: rc = %d\n", + obd->obd_name, rc); + rc = 0; + } +#endif /* CONFIG_PROC_FS */ +out_failed: + return rc; }