1509 lines
40 KiB
C
1509 lines
40 KiB
C
/*
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* GPL HEADER START
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 only,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License version 2 for more details (a copy is included
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* in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; If not, see
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* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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* GPL HEADER END
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*/
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/*
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* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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* Use is subject to license terms.
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*
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* Copyright (c) 2011, 2015, Intel Corporation.
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*/
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/*
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* This file is part of Lustre, http://www.lustre.org/
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* Lustre is a trademark of Sun Microsystems, Inc.
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*/
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#define DEBUG_SUBSYSTEM S_LLITE
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#include "../include/lustre_lite.h"
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#include "../include/lprocfs_status.h"
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#include <linux/seq_file.h>
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#include "../include/obd_support.h"
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#include "llite_internal.h"
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#include "vvp_internal.h"
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/* debugfs llite mount point registration */
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static struct file_operations ll_rw_extents_stats_fops;
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static struct file_operations ll_rw_extents_stats_pp_fops;
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static struct file_operations ll_rw_offset_stats_fops;
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static ssize_t blocksize_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc)
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return sprintf(buf, "%u\n", osfs.os_bsize);
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return rc;
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}
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LUSTRE_RO_ATTR(blocksize);
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static ssize_t kbytestotal_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc) {
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__u32 blk_size = osfs.os_bsize >> 10;
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__u64 result = osfs.os_blocks;
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while (blk_size >>= 1)
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result <<= 1;
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rc = sprintf(buf, "%llu\n", result);
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}
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return rc;
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}
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LUSTRE_RO_ATTR(kbytestotal);
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static ssize_t kbytesfree_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc) {
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__u32 blk_size = osfs.os_bsize >> 10;
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__u64 result = osfs.os_bfree;
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while (blk_size >>= 1)
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result <<= 1;
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rc = sprintf(buf, "%llu\n", result);
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}
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return rc;
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}
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LUSTRE_RO_ATTR(kbytesfree);
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static ssize_t kbytesavail_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc) {
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__u32 blk_size = osfs.os_bsize >> 10;
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__u64 result = osfs.os_bavail;
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while (blk_size >>= 1)
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result <<= 1;
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rc = sprintf(buf, "%llu\n", result);
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}
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return rc;
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}
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LUSTRE_RO_ATTR(kbytesavail);
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static ssize_t filestotal_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc)
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return sprintf(buf, "%llu\n", osfs.os_files);
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return rc;
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}
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LUSTRE_RO_ATTR(filestotal);
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static ssize_t filesfree_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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struct obd_statfs osfs;
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int rc;
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rc = ll_statfs_internal(sbi->ll_sb, &osfs,
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cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
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OBD_STATFS_NODELAY);
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if (!rc)
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return sprintf(buf, "%llu\n", osfs.os_ffree);
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return rc;
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}
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LUSTRE_RO_ATTR(filesfree);
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static ssize_t client_type_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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return sprintf(buf, "%s client\n",
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sbi->ll_flags & LL_SBI_RMT_CLIENT ? "remote" : "local");
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}
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LUSTRE_RO_ATTR(client_type);
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static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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return sprintf(buf, "%s\n", sbi->ll_sb->s_type->name);
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}
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LUSTRE_RO_ATTR(fstype);
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static ssize_t uuid_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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return sprintf(buf, "%s\n", sbi->ll_sb_uuid.uuid);
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}
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LUSTRE_RO_ATTR(uuid);
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static int ll_site_stats_seq_show(struct seq_file *m, void *v)
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{
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struct super_block *sb = m->private;
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/*
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* See description of statistical counters in struct cl_site, and
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* struct lu_site.
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*/
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return cl_site_stats_print(lu2cl_site(ll_s2sbi(sb)->ll_site), m);
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}
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LPROC_SEQ_FOPS_RO(ll_site_stats);
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static ssize_t max_read_ahead_mb_show(struct kobject *kobj,
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struct attribute *attr, char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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long pages_number;
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int mult;
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spin_lock(&sbi->ll_lock);
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pages_number = sbi->ll_ra_info.ra_max_pages;
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spin_unlock(&sbi->ll_lock);
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mult = 1 << (20 - PAGE_SHIFT);
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return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
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}
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static ssize_t max_read_ahead_mb_store(struct kobject *kobj,
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struct attribute *attr,
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const char *buffer,
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size_t count)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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int rc;
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unsigned long pages_number;
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rc = kstrtoul(buffer, 10, &pages_number);
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if (rc)
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return rc;
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pages_number *= 1 << (20 - PAGE_SHIFT); /* MB -> pages */
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if (pages_number > totalram_pages / 2) {
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CERROR("can't set file readahead more than %lu MB\n",
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totalram_pages >> (20 - PAGE_SHIFT + 1)); /*1/2 of RAM*/
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return -ERANGE;
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}
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spin_lock(&sbi->ll_lock);
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sbi->ll_ra_info.ra_max_pages = pages_number;
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spin_unlock(&sbi->ll_lock);
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return count;
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}
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LUSTRE_RW_ATTR(max_read_ahead_mb);
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static ssize_t max_read_ahead_per_file_mb_show(struct kobject *kobj,
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struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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long pages_number;
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int mult;
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spin_lock(&sbi->ll_lock);
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pages_number = sbi->ll_ra_info.ra_max_pages_per_file;
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spin_unlock(&sbi->ll_lock);
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mult = 1 << (20 - PAGE_SHIFT);
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return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
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}
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static ssize_t max_read_ahead_per_file_mb_store(struct kobject *kobj,
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struct attribute *attr,
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const char *buffer,
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size_t count)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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int rc;
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unsigned long pages_number;
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rc = kstrtoul(buffer, 10, &pages_number);
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if (rc)
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return rc;
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if (pages_number > sbi->ll_ra_info.ra_max_pages) {
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CERROR("can't set file readahead more than max_read_ahead_mb %lu MB\n",
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sbi->ll_ra_info.ra_max_pages);
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return -ERANGE;
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}
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spin_lock(&sbi->ll_lock);
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sbi->ll_ra_info.ra_max_pages_per_file = pages_number;
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spin_unlock(&sbi->ll_lock);
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return count;
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}
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LUSTRE_RW_ATTR(max_read_ahead_per_file_mb);
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static ssize_t max_read_ahead_whole_mb_show(struct kobject *kobj,
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struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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long pages_number;
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int mult;
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spin_lock(&sbi->ll_lock);
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pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
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spin_unlock(&sbi->ll_lock);
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mult = 1 << (20 - PAGE_SHIFT);
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return lprocfs_read_frac_helper(buf, PAGE_SIZE, pages_number, mult);
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}
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static ssize_t max_read_ahead_whole_mb_store(struct kobject *kobj,
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struct attribute *attr,
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const char *buffer,
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size_t count)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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int rc;
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unsigned long pages_number;
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rc = kstrtoul(buffer, 10, &pages_number);
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if (rc)
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return rc;
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/* Cap this at the current max readahead window size, the readahead
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* algorithm does this anyway so it's pointless to set it larger.
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*/
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if (pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
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CERROR("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n",
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sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_SHIFT));
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return -ERANGE;
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}
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spin_lock(&sbi->ll_lock);
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sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
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spin_unlock(&sbi->ll_lock);
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return count;
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}
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LUSTRE_RW_ATTR(max_read_ahead_whole_mb);
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static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v)
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{
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struct super_block *sb = m->private;
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struct ll_sb_info *sbi = ll_s2sbi(sb);
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struct cl_client_cache *cache = &sbi->ll_cache;
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int shift = 20 - PAGE_SHIFT;
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int max_cached_mb;
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int unused_mb;
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max_cached_mb = cache->ccc_lru_max >> shift;
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unused_mb = atomic_read(&cache->ccc_lru_left) >> shift;
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seq_printf(m,
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"users: %d\n"
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"max_cached_mb: %d\n"
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"used_mb: %d\n"
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"unused_mb: %d\n"
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"reclaim_count: %u\n",
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atomic_read(&cache->ccc_users),
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max_cached_mb,
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max_cached_mb - unused_mb,
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unused_mb,
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cache->ccc_lru_shrinkers);
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return 0;
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}
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static ssize_t ll_max_cached_mb_seq_write(struct file *file,
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const char __user *buffer,
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size_t count, loff_t *off)
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{
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struct super_block *sb = ((struct seq_file *)file->private_data)->private;
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struct ll_sb_info *sbi = ll_s2sbi(sb);
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struct cl_client_cache *cache = &sbi->ll_cache;
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int mult, rc, pages_number;
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int diff = 0;
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int nrpages = 0;
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char kernbuf[128];
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if (count >= sizeof(kernbuf))
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return -EINVAL;
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if (copy_from_user(kernbuf, buffer, count))
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return -EFAULT;
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kernbuf[count] = 0;
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mult = 1 << (20 - PAGE_SHIFT);
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buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) -
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kernbuf;
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rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
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if (rc)
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return rc;
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|
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if (pages_number < 0 || pages_number > totalram_pages) {
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CERROR("%s: can't set max cache more than %lu MB\n",
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ll_get_fsname(sb, NULL, 0),
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totalram_pages >> (20 - PAGE_SHIFT));
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return -ERANGE;
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}
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spin_lock(&sbi->ll_lock);
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diff = pages_number - cache->ccc_lru_max;
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spin_unlock(&sbi->ll_lock);
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/* easy - add more LRU slots. */
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if (diff >= 0) {
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atomic_add(diff, &cache->ccc_lru_left);
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rc = 0;
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goto out;
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}
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diff = -diff;
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while (diff > 0) {
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int tmp;
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/* reduce LRU budget from free slots. */
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do {
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int ov, nv;
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ov = atomic_read(&cache->ccc_lru_left);
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if (ov == 0)
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break;
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nv = ov > diff ? ov - diff : 0;
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rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
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if (likely(ov == rc)) {
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diff -= ov - nv;
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nrpages += ov - nv;
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break;
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}
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} while (1);
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|
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if (diff <= 0)
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break;
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|
|
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if (!sbi->ll_dt_exp) { /* being initialized */
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rc = -ENODEV;
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break;
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}
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|
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/* difficult - have to ask OSCs to drop LRU slots. */
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tmp = diff << 1;
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rc = obd_set_info_async(NULL, sbi->ll_dt_exp,
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sizeof(KEY_CACHE_LRU_SHRINK),
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KEY_CACHE_LRU_SHRINK,
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sizeof(tmp), &tmp, NULL);
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if (rc < 0)
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break;
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}
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out:
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if (rc >= 0) {
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spin_lock(&sbi->ll_lock);
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cache->ccc_lru_max = pages_number;
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spin_unlock(&sbi->ll_lock);
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rc = count;
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} else {
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atomic_add(nrpages, &cache->ccc_lru_left);
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}
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return rc;
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}
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|
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LPROC_SEQ_FOPS(ll_max_cached_mb);
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|
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static ssize_t checksum_pages_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
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ll_kobj);
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return sprintf(buf, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
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}
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|
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static ssize_t checksum_pages_store(struct kobject *kobj,
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struct attribute *attr,
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const char *buffer,
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size_t count)
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|
{
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struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
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ll_kobj);
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int rc;
|
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unsigned long val;
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|
|
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if (!sbi->ll_dt_exp)
|
|
/* Not set up yet */
|
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return -EAGAIN;
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|
|
rc = kstrtoul(buffer, 10, &val);
|
|
if (rc)
|
|
return rc;
|
|
if (val)
|
|
sbi->ll_flags |= LL_SBI_CHECKSUM;
|
|
else
|
|
sbi->ll_flags &= ~LL_SBI_CHECKSUM;
|
|
|
|
rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
|
|
KEY_CHECKSUM, sizeof(val), &val, NULL);
|
|
if (rc)
|
|
CWARN("Failed to set OSC checksum flags: %d\n", rc);
|
|
|
|
return count;
|
|
}
|
|
LUSTRE_RW_ATTR(checksum_pages);
|
|
|
|
static ssize_t ll_rd_track_id(struct kobject *kobj, char *buf,
|
|
enum stats_track_type type)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
|
|
if (sbi->ll_stats_track_type == type)
|
|
return sprintf(buf, "%d\n", sbi->ll_stats_track_id);
|
|
else if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
|
|
return sprintf(buf, "0 (all)\n");
|
|
else
|
|
return sprintf(buf, "untracked\n");
|
|
}
|
|
|
|
static ssize_t ll_wr_track_id(struct kobject *kobj, const char *buffer,
|
|
size_t count,
|
|
enum stats_track_type type)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
int rc;
|
|
unsigned long pid;
|
|
|
|
rc = kstrtoul(buffer, 10, &pid);
|
|
if (rc)
|
|
return rc;
|
|
sbi->ll_stats_track_id = pid;
|
|
if (pid == 0)
|
|
sbi->ll_stats_track_type = STATS_TRACK_ALL;
|
|
else
|
|
sbi->ll_stats_track_type = type;
|
|
lprocfs_clear_stats(sbi->ll_stats);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t stats_track_pid_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
return ll_rd_track_id(kobj, buf, STATS_TRACK_PID);
|
|
}
|
|
|
|
static ssize_t stats_track_pid_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PID);
|
|
}
|
|
LUSTRE_RW_ATTR(stats_track_pid);
|
|
|
|
static ssize_t stats_track_ppid_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
return ll_rd_track_id(kobj, buf, STATS_TRACK_PPID);
|
|
}
|
|
|
|
static ssize_t stats_track_ppid_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PPID);
|
|
}
|
|
LUSTRE_RW_ATTR(stats_track_ppid);
|
|
|
|
static ssize_t stats_track_gid_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
return ll_rd_track_id(kobj, buf, STATS_TRACK_GID);
|
|
}
|
|
|
|
static ssize_t stats_track_gid_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_GID);
|
|
}
|
|
LUSTRE_RW_ATTR(stats_track_gid);
|
|
|
|
static ssize_t statahead_max_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
|
|
return sprintf(buf, "%u\n", sbi->ll_sa_max);
|
|
}
|
|
|
|
static ssize_t statahead_max_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
int rc;
|
|
unsigned long val;
|
|
|
|
rc = kstrtoul(buffer, 10, &val);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (val <= LL_SA_RPC_MAX)
|
|
sbi->ll_sa_max = val;
|
|
else
|
|
CERROR("Bad statahead_max value %lu. Valid values are in the range [0, %d]\n",
|
|
val, LL_SA_RPC_MAX);
|
|
|
|
return count;
|
|
}
|
|
LUSTRE_RW_ATTR(statahead_max);
|
|
|
|
static ssize_t statahead_agl_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
|
|
return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t statahead_agl_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
int rc;
|
|
unsigned long val;
|
|
|
|
rc = kstrtoul(buffer, 10, &val);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (val)
|
|
sbi->ll_flags |= LL_SBI_AGL_ENABLED;
|
|
else
|
|
sbi->ll_flags &= ~LL_SBI_AGL_ENABLED;
|
|
|
|
return count;
|
|
}
|
|
LUSTRE_RW_ATTR(statahead_agl);
|
|
|
|
static int ll_statahead_stats_seq_show(struct seq_file *m, void *v)
|
|
{
|
|
struct super_block *sb = m->private;
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
|
|
seq_printf(m,
|
|
"statahead total: %u\n"
|
|
"statahead wrong: %u\n"
|
|
"agl total: %u\n",
|
|
atomic_read(&sbi->ll_sa_total),
|
|
atomic_read(&sbi->ll_sa_wrong),
|
|
atomic_read(&sbi->ll_agl_total));
|
|
return 0;
|
|
}
|
|
|
|
LPROC_SEQ_FOPS_RO(ll_statahead_stats);
|
|
|
|
static ssize_t lazystatfs_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
|
|
return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t lazystatfs_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
int rc;
|
|
unsigned long val;
|
|
|
|
rc = kstrtoul(buffer, 10, &val);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (val)
|
|
sbi->ll_flags |= LL_SBI_LAZYSTATFS;
|
|
else
|
|
sbi->ll_flags &= ~LL_SBI_LAZYSTATFS;
|
|
|
|
return count;
|
|
}
|
|
LUSTRE_RW_ATTR(lazystatfs);
|
|
|
|
static ssize_t max_easize_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
unsigned int ealen;
|
|
int rc;
|
|
|
|
rc = ll_get_max_mdsize(sbi, &ealen);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return sprintf(buf, "%u\n", ealen);
|
|
}
|
|
LUSTRE_RO_ATTR(max_easize);
|
|
|
|
static ssize_t default_easize_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
unsigned int ealen;
|
|
int rc;
|
|
|
|
rc = ll_get_default_mdsize(sbi, &ealen);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return sprintf(buf, "%u\n", ealen);
|
|
}
|
|
LUSTRE_RO_ATTR(default_easize);
|
|
|
|
static int ll_sbi_flags_seq_show(struct seq_file *m, void *v)
|
|
{
|
|
const char *str[] = LL_SBI_FLAGS;
|
|
struct super_block *sb = m->private;
|
|
int flags = ll_s2sbi(sb)->ll_flags;
|
|
int i = 0;
|
|
|
|
while (flags != 0) {
|
|
if (ARRAY_SIZE(str) <= i) {
|
|
CERROR("%s: Revise array LL_SBI_FLAGS to match sbi flags please.\n",
|
|
ll_get_fsname(sb, NULL, 0));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (flags & 0x1)
|
|
seq_printf(m, "%s ", str[i]);
|
|
flags >>= 1;
|
|
++i;
|
|
}
|
|
seq_printf(m, "\b\n");
|
|
return 0;
|
|
}
|
|
|
|
LPROC_SEQ_FOPS_RO(ll_sbi_flags);
|
|
|
|
static ssize_t xattr_cache_show(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
|
|
return sprintf(buf, "%u\n", sbi->ll_xattr_cache_enabled);
|
|
}
|
|
|
|
static ssize_t xattr_cache_store(struct kobject *kobj,
|
|
struct attribute *attr,
|
|
const char *buffer,
|
|
size_t count)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
int rc;
|
|
unsigned long val;
|
|
|
|
rc = kstrtoul(buffer, 10, &val);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (val != 0 && val != 1)
|
|
return -ERANGE;
|
|
|
|
if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE))
|
|
return -ENOTSUPP;
|
|
|
|
sbi->ll_xattr_cache_enabled = val;
|
|
|
|
return count;
|
|
}
|
|
LUSTRE_RW_ATTR(xattr_cache);
|
|
|
|
static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
|
|
/* { "mntpt_path", ll_rd_path, 0, 0 }, */
|
|
{ "site", &ll_site_stats_fops, NULL, 0 },
|
|
/* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */
|
|
{ "max_cached_mb", &ll_max_cached_mb_fops, NULL },
|
|
{ "statahead_stats", &ll_statahead_stats_fops, NULL, 0 },
|
|
{ "sbi_flags", &ll_sbi_flags_fops, NULL, 0 },
|
|
{ NULL }
|
|
};
|
|
|
|
#define MAX_STRING_SIZE 128
|
|
|
|
static struct attribute *llite_attrs[] = {
|
|
&lustre_attr_blocksize.attr,
|
|
&lustre_attr_kbytestotal.attr,
|
|
&lustre_attr_kbytesfree.attr,
|
|
&lustre_attr_kbytesavail.attr,
|
|
&lustre_attr_filestotal.attr,
|
|
&lustre_attr_filesfree.attr,
|
|
&lustre_attr_client_type.attr,
|
|
&lustre_attr_fstype.attr,
|
|
&lustre_attr_uuid.attr,
|
|
&lustre_attr_max_read_ahead_mb.attr,
|
|
&lustre_attr_max_read_ahead_per_file_mb.attr,
|
|
&lustre_attr_max_read_ahead_whole_mb.attr,
|
|
&lustre_attr_checksum_pages.attr,
|
|
&lustre_attr_stats_track_pid.attr,
|
|
&lustre_attr_stats_track_ppid.attr,
|
|
&lustre_attr_stats_track_gid.attr,
|
|
&lustre_attr_statahead_max.attr,
|
|
&lustre_attr_statahead_agl.attr,
|
|
&lustre_attr_lazystatfs.attr,
|
|
&lustre_attr_max_easize.attr,
|
|
&lustre_attr_default_easize.attr,
|
|
&lustre_attr_xattr_cache.attr,
|
|
NULL,
|
|
};
|
|
|
|
static void llite_sb_release(struct kobject *kobj)
|
|
{
|
|
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
|
|
ll_kobj);
|
|
complete(&sbi->ll_kobj_unregister);
|
|
}
|
|
|
|
static struct kobj_type llite_ktype = {
|
|
.default_attrs = llite_attrs,
|
|
.sysfs_ops = &lustre_sysfs_ops,
|
|
.release = llite_sb_release,
|
|
};
|
|
|
|
static const struct llite_file_opcode {
|
|
__u32 opcode;
|
|
__u32 type;
|
|
const char *opname;
|
|
} llite_opcode_table[LPROC_LL_FILE_OPCODES] = {
|
|
/* file operation */
|
|
{ LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" },
|
|
{ LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" },
|
|
{ LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
|
|
"read_bytes" },
|
|
{ LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
|
|
"write_bytes" },
|
|
{ LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
|
|
"brw_read" },
|
|
{ LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
|
|
"brw_write" },
|
|
{ LPROC_LL_OSC_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
|
|
"osc_read" },
|
|
{ LPROC_LL_OSC_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
|
|
"osc_write" },
|
|
{ LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" },
|
|
{ LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" },
|
|
{ LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" },
|
|
{ LPROC_LL_MAP, LPROCFS_TYPE_REGS, "mmap" },
|
|
{ LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" },
|
|
{ LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" },
|
|
{ LPROC_LL_READDIR, LPROCFS_TYPE_REGS, "readdir" },
|
|
/* inode operation */
|
|
{ LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" },
|
|
{ LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" },
|
|
{ LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" },
|
|
{ LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" },
|
|
/* dir inode operation */
|
|
{ LPROC_LL_CREATE, LPROCFS_TYPE_REGS, "create" },
|
|
{ LPROC_LL_LINK, LPROCFS_TYPE_REGS, "link" },
|
|
{ LPROC_LL_UNLINK, LPROCFS_TYPE_REGS, "unlink" },
|
|
{ LPROC_LL_SYMLINK, LPROCFS_TYPE_REGS, "symlink" },
|
|
{ LPROC_LL_MKDIR, LPROCFS_TYPE_REGS, "mkdir" },
|
|
{ LPROC_LL_RMDIR, LPROCFS_TYPE_REGS, "rmdir" },
|
|
{ LPROC_LL_MKNOD, LPROCFS_TYPE_REGS, "mknod" },
|
|
{ LPROC_LL_RENAME, LPROCFS_TYPE_REGS, "rename" },
|
|
/* special inode operation */
|
|
{ LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" },
|
|
{ LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
|
|
{ LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
|
|
{ LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
|
|
{ LPROC_LL_GETXATTR_HITS, LPROCFS_TYPE_REGS, "getxattr_hits" },
|
|
{ LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
|
|
{ LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
|
|
{ LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
|
|
};
|
|
|
|
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
|
|
{
|
|
if (!sbi->ll_stats)
|
|
return;
|
|
if (sbi->ll_stats_track_type == STATS_TRACK_ALL)
|
|
lprocfs_counter_add(sbi->ll_stats, op, count);
|
|
else if (sbi->ll_stats_track_type == STATS_TRACK_PID &&
|
|
sbi->ll_stats_track_id == current->pid)
|
|
lprocfs_counter_add(sbi->ll_stats, op, count);
|
|
else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
|
|
sbi->ll_stats_track_id == current->real_parent->pid)
|
|
lprocfs_counter_add(sbi->ll_stats, op, count);
|
|
else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
|
|
sbi->ll_stats_track_id ==
|
|
from_kgid(&init_user_ns, current_gid()))
|
|
lprocfs_counter_add(sbi->ll_stats, op, count);
|
|
}
|
|
EXPORT_SYMBOL(ll_stats_ops_tally);
|
|
|
|
static const char *ra_stat_string[] = {
|
|
[RA_STAT_HIT] = "hits",
|
|
[RA_STAT_MISS] = "misses",
|
|
[RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
|
|
[RA_STAT_MISS_IN_WINDOW] = "miss inside window",
|
|
[RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
|
|
[RA_STAT_FAILED_MATCH] = "failed lock match",
|
|
[RA_STAT_DISCARDED] = "read but discarded",
|
|
[RA_STAT_ZERO_LEN] = "zero length file",
|
|
[RA_STAT_ZERO_WINDOW] = "zero size window",
|
|
[RA_STAT_EOF] = "read-ahead to EOF",
|
|
[RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
|
|
[RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
|
|
};
|
|
|
|
int ldebugfs_register_mountpoint(struct dentry *parent,
|
|
struct super_block *sb, char *osc, char *mdc)
|
|
{
|
|
struct lustre_sb_info *lsi = s2lsi(sb);
|
|
struct ll_sb_info *sbi = ll_s2sbi(sb);
|
|
struct obd_device *obd;
|
|
struct dentry *dir;
|
|
char name[MAX_STRING_SIZE + 1], *ptr;
|
|
int err, id, len, rc;
|
|
|
|
name[MAX_STRING_SIZE] = '\0';
|
|
|
|
LASSERT(sbi);
|
|
LASSERT(mdc);
|
|
LASSERT(osc);
|
|
|
|
/* Get fsname */
|
|
len = strlen(lsi->lsi_lmd->lmd_profile);
|
|
ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
|
|
if (ptr && (strcmp(ptr, "-client") == 0))
|
|
len -= 7;
|
|
|
|
/* Mount info */
|
|
snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
|
|
lsi->lsi_lmd->lmd_profile, sb);
|
|
|
|
dir = ldebugfs_register(name, parent, NULL, NULL);
|
|
if (IS_ERR_OR_NULL(dir)) {
|
|
err = dir ? PTR_ERR(dir) : -ENOMEM;
|
|
sbi->ll_debugfs_entry = NULL;
|
|
return err;
|
|
}
|
|
sbi->ll_debugfs_entry = dir;
|
|
|
|
rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "dump_page_cache", 0444,
|
|
&vvp_dump_pgcache_file_ops, sbi);
|
|
if (rc)
|
|
CWARN("Error adding the dump_page_cache file\n");
|
|
|
|
rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "extents_stats", 0644,
|
|
&ll_rw_extents_stats_fops, sbi);
|
|
if (rc)
|
|
CWARN("Error adding the extent_stats file\n");
|
|
|
|
rc = ldebugfs_seq_create(sbi->ll_debugfs_entry,
|
|
"extents_stats_per_process",
|
|
0644, &ll_rw_extents_stats_pp_fops, sbi);
|
|
if (rc)
|
|
CWARN("Error adding the extents_stats_per_process file\n");
|
|
|
|
rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "offset_stats", 0644,
|
|
&ll_rw_offset_stats_fops, sbi);
|
|
if (rc)
|
|
CWARN("Error adding the offset_stats file\n");
|
|
|
|
/* File operations stats */
|
|
sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
|
|
LPROCFS_STATS_FLAG_NONE);
|
|
if (!sbi->ll_stats) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
/* do counter init */
|
|
for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) {
|
|
__u32 type = llite_opcode_table[id].type;
|
|
void *ptr = NULL;
|
|
|
|
if (type & LPROCFS_TYPE_REGS)
|
|
ptr = "regs";
|
|
else if (type & LPROCFS_TYPE_BYTES)
|
|
ptr = "bytes";
|
|
else if (type & LPROCFS_TYPE_PAGES)
|
|
ptr = "pages";
|
|
lprocfs_counter_init(sbi->ll_stats,
|
|
llite_opcode_table[id].opcode,
|
|
(type & LPROCFS_CNTR_AVGMINMAX),
|
|
llite_opcode_table[id].opname, ptr);
|
|
}
|
|
err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "stats",
|
|
sbi->ll_stats);
|
|
if (err)
|
|
goto out;
|
|
|
|
sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string),
|
|
LPROCFS_STATS_FLAG_NONE);
|
|
if (!sbi->ll_ra_stats) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++)
|
|
lprocfs_counter_init(sbi->ll_ra_stats, id, 0,
|
|
ra_stat_string[id], "pages");
|
|
|
|
err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "read_ahead_stats",
|
|
sbi->ll_ra_stats);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = ldebugfs_add_vars(sbi->ll_debugfs_entry,
|
|
lprocfs_llite_obd_vars, sb);
|
|
if (err)
|
|
goto out;
|
|
|
|
sbi->ll_kobj.kset = llite_kset;
|
|
init_completion(&sbi->ll_kobj_unregister);
|
|
err = kobject_init_and_add(&sbi->ll_kobj, &llite_ktype, NULL,
|
|
"%s", name);
|
|
if (err)
|
|
goto out;
|
|
|
|
/* MDC info */
|
|
obd = class_name2obd(mdc);
|
|
|
|
err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj,
|
|
obd->obd_type->typ_name);
|
|
if (err)
|
|
goto out;
|
|
|
|
/* OSC */
|
|
obd = class_name2obd(osc);
|
|
|
|
err = sysfs_create_link(&sbi->ll_kobj, &obd->obd_kobj,
|
|
obd->obd_type->typ_name);
|
|
out:
|
|
if (err) {
|
|
ldebugfs_remove(&sbi->ll_debugfs_entry);
|
|
lprocfs_free_stats(&sbi->ll_ra_stats);
|
|
lprocfs_free_stats(&sbi->ll_stats);
|
|
}
|
|
return err;
|
|
}
|
|
|
|
void ldebugfs_unregister_mountpoint(struct ll_sb_info *sbi)
|
|
{
|
|
if (sbi->ll_debugfs_entry) {
|
|
ldebugfs_remove(&sbi->ll_debugfs_entry);
|
|
kobject_put(&sbi->ll_kobj);
|
|
wait_for_completion(&sbi->ll_kobj_unregister);
|
|
lprocfs_free_stats(&sbi->ll_ra_stats);
|
|
lprocfs_free_stats(&sbi->ll_stats);
|
|
}
|
|
}
|
|
|
|
#undef MAX_STRING_SIZE
|
|
|
|
#define pct(a, b) (b ? a * 100 / b : 0)
|
|
|
|
static void ll_display_extents_info(struct ll_rw_extents_info *io_extents,
|
|
struct seq_file *seq, int which)
|
|
{
|
|
unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
|
|
unsigned long start, end, r, w;
|
|
char *unitp = "KMGTPEZY";
|
|
int i, units = 10;
|
|
struct per_process_info *pp_info = &io_extents->pp_extents[which];
|
|
|
|
read_cum = 0;
|
|
write_cum = 0;
|
|
start = 0;
|
|
|
|
for (i = 0; i < LL_HIST_MAX; i++) {
|
|
read_tot += pp_info->pp_r_hist.oh_buckets[i];
|
|
write_tot += pp_info->pp_w_hist.oh_buckets[i];
|
|
}
|
|
|
|
for (i = 0; i < LL_HIST_MAX; i++) {
|
|
r = pp_info->pp_r_hist.oh_buckets[i];
|
|
w = pp_info->pp_w_hist.oh_buckets[i];
|
|
read_cum += r;
|
|
write_cum += w;
|
|
end = 1 << (i + LL_HIST_START - units);
|
|
seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | %14lu %4lu %4lu\n",
|
|
start, *unitp, end, *unitp,
|
|
(i == LL_HIST_MAX - 1) ? '+' : ' ',
|
|
r, pct(r, read_tot), pct(read_cum, read_tot),
|
|
w, pct(w, write_tot), pct(write_cum, write_tot));
|
|
start = end;
|
|
if (start == 1<<10) {
|
|
start = 1;
|
|
units += 10;
|
|
unitp++;
|
|
}
|
|
if (read_cum == read_tot && write_cum == write_tot)
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v)
|
|
{
|
|
struct timespec64 now;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
|
|
int k;
|
|
|
|
ktime_get_real_ts64(&now);
|
|
|
|
if (!sbi->ll_rw_stats_on) {
|
|
seq_printf(seq, "disabled\n"
|
|
"write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
|
|
return 0;
|
|
}
|
|
seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n",
|
|
(s64)now.tv_sec, (unsigned long)now.tv_nsec);
|
|
seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
|
|
seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
|
|
"extents", "calls", "%", "cum%",
|
|
"calls", "%", "cum%");
|
|
spin_lock(&sbi->ll_pp_extent_lock);
|
|
for (k = 0; k < LL_PROCESS_HIST_MAX; k++) {
|
|
if (io_extents->pp_extents[k].pid != 0) {
|
|
seq_printf(seq, "\nPID: %d\n",
|
|
io_extents->pp_extents[k].pid);
|
|
ll_display_extents_info(io_extents, seq, k);
|
|
}
|
|
}
|
|
spin_unlock(&sbi->ll_pp_extent_lock);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
|
|
const char __user *buf,
|
|
size_t len,
|
|
loff_t *off)
|
|
{
|
|
struct seq_file *seq = file->private_data;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
|
|
int i;
|
|
int value = 1, rc = 0;
|
|
|
|
if (len == 0)
|
|
return -EINVAL;
|
|
|
|
rc = lprocfs_write_helper(buf, len, &value);
|
|
if (rc < 0 && len < 16) {
|
|
char kernbuf[16];
|
|
|
|
if (copy_from_user(kernbuf, buf, len))
|
|
return -EFAULT;
|
|
kernbuf[len] = 0;
|
|
|
|
if (kernbuf[len - 1] == '\n')
|
|
kernbuf[len - 1] = 0;
|
|
|
|
if (strcmp(kernbuf, "disabled") == 0 ||
|
|
strcmp(kernbuf, "Disabled") == 0)
|
|
value = 0;
|
|
}
|
|
|
|
if (value == 0)
|
|
sbi->ll_rw_stats_on = 0;
|
|
else
|
|
sbi->ll_rw_stats_on = 1;
|
|
|
|
spin_lock(&sbi->ll_pp_extent_lock);
|
|
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
|
|
io_extents->pp_extents[i].pid = 0;
|
|
lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
|
|
lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
|
|
}
|
|
spin_unlock(&sbi->ll_pp_extent_lock);
|
|
return len;
|
|
}
|
|
|
|
LPROC_SEQ_FOPS(ll_rw_extents_stats_pp);
|
|
|
|
static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
|
|
{
|
|
struct timespec64 now;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
|
|
|
|
ktime_get_real_ts64(&now);
|
|
|
|
if (!sbi->ll_rw_stats_on) {
|
|
seq_printf(seq, "disabled\n"
|
|
"write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
|
|
return 0;
|
|
}
|
|
seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n",
|
|
(u64)now.tv_sec, (unsigned long)now.tv_nsec);
|
|
|
|
seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
|
|
seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
|
|
"extents", "calls", "%", "cum%",
|
|
"calls", "%", "cum%");
|
|
spin_lock(&sbi->ll_lock);
|
|
ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
|
|
spin_unlock(&sbi->ll_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t ll_rw_extents_stats_seq_write(struct file *file,
|
|
const char __user *buf,
|
|
size_t len, loff_t *off)
|
|
{
|
|
struct seq_file *seq = file->private_data;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
|
|
int i;
|
|
int value = 1, rc = 0;
|
|
|
|
if (len == 0)
|
|
return -EINVAL;
|
|
|
|
rc = lprocfs_write_helper(buf, len, &value);
|
|
if (rc < 0 && len < 16) {
|
|
char kernbuf[16];
|
|
|
|
if (copy_from_user(kernbuf, buf, len))
|
|
return -EFAULT;
|
|
kernbuf[len] = 0;
|
|
|
|
if (kernbuf[len - 1] == '\n')
|
|
kernbuf[len - 1] = 0;
|
|
|
|
if (strcmp(kernbuf, "disabled") == 0 ||
|
|
strcmp(kernbuf, "Disabled") == 0)
|
|
value = 0;
|
|
}
|
|
|
|
if (value == 0)
|
|
sbi->ll_rw_stats_on = 0;
|
|
else
|
|
sbi->ll_rw_stats_on = 1;
|
|
|
|
spin_lock(&sbi->ll_pp_extent_lock);
|
|
for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
|
|
io_extents->pp_extents[i].pid = 0;
|
|
lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
|
|
lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
|
|
}
|
|
spin_unlock(&sbi->ll_pp_extent_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
LPROC_SEQ_FOPS(ll_rw_extents_stats);
|
|
|
|
void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
|
|
struct ll_file_data *file, loff_t pos,
|
|
size_t count, int rw)
|
|
{
|
|
int i, cur = -1;
|
|
struct ll_rw_process_info *process;
|
|
struct ll_rw_process_info *offset;
|
|
int *off_count = &sbi->ll_rw_offset_entry_count;
|
|
int *process_count = &sbi->ll_offset_process_count;
|
|
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
|
|
|
|
if (!sbi->ll_rw_stats_on)
|
|
return;
|
|
process = sbi->ll_rw_process_info;
|
|
offset = sbi->ll_rw_offset_info;
|
|
|
|
spin_lock(&sbi->ll_pp_extent_lock);
|
|
/* Extent statistics */
|
|
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
|
|
if (io_extents->pp_extents[i].pid == pid) {
|
|
cur = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (cur == -1) {
|
|
/* new process */
|
|
sbi->ll_extent_process_count =
|
|
(sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX;
|
|
cur = sbi->ll_extent_process_count;
|
|
io_extents->pp_extents[cur].pid = pid;
|
|
lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_r_hist);
|
|
lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
|
|
}
|
|
|
|
for (i = 0; (count >= (1 << LL_HIST_START << i)) &&
|
|
(i < (LL_HIST_MAX - 1)); i++)
|
|
;
|
|
if (rw == 0) {
|
|
io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
|
|
io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++;
|
|
} else {
|
|
io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
|
|
io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
|
|
}
|
|
spin_unlock(&sbi->ll_pp_extent_lock);
|
|
|
|
spin_lock(&sbi->ll_process_lock);
|
|
/* Offset statistics */
|
|
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
|
|
if (process[i].rw_pid == pid) {
|
|
if (process[i].rw_last_file != file) {
|
|
process[i].rw_range_start = pos;
|
|
process[i].rw_last_file_pos = pos + count;
|
|
process[i].rw_smallest_extent = count;
|
|
process[i].rw_largest_extent = count;
|
|
process[i].rw_offset = 0;
|
|
process[i].rw_last_file = file;
|
|
spin_unlock(&sbi->ll_process_lock);
|
|
return;
|
|
}
|
|
if (process[i].rw_last_file_pos != pos) {
|
|
*off_count =
|
|
(*off_count + 1) % LL_OFFSET_HIST_MAX;
|
|
offset[*off_count].rw_op = process[i].rw_op;
|
|
offset[*off_count].rw_pid = pid;
|
|
offset[*off_count].rw_range_start =
|
|
process[i].rw_range_start;
|
|
offset[*off_count].rw_range_end =
|
|
process[i].rw_last_file_pos;
|
|
offset[*off_count].rw_smallest_extent =
|
|
process[i].rw_smallest_extent;
|
|
offset[*off_count].rw_largest_extent =
|
|
process[i].rw_largest_extent;
|
|
offset[*off_count].rw_offset =
|
|
process[i].rw_offset;
|
|
process[i].rw_op = rw;
|
|
process[i].rw_range_start = pos;
|
|
process[i].rw_smallest_extent = count;
|
|
process[i].rw_largest_extent = count;
|
|
process[i].rw_offset = pos -
|
|
process[i].rw_last_file_pos;
|
|
}
|
|
if (process[i].rw_smallest_extent > count)
|
|
process[i].rw_smallest_extent = count;
|
|
if (process[i].rw_largest_extent < count)
|
|
process[i].rw_largest_extent = count;
|
|
process[i].rw_last_file_pos = pos + count;
|
|
spin_unlock(&sbi->ll_process_lock);
|
|
return;
|
|
}
|
|
}
|
|
*process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX;
|
|
process[*process_count].rw_pid = pid;
|
|
process[*process_count].rw_op = rw;
|
|
process[*process_count].rw_range_start = pos;
|
|
process[*process_count].rw_last_file_pos = pos + count;
|
|
process[*process_count].rw_smallest_extent = count;
|
|
process[*process_count].rw_largest_extent = count;
|
|
process[*process_count].rw_offset = 0;
|
|
process[*process_count].rw_last_file = file;
|
|
spin_unlock(&sbi->ll_process_lock);
|
|
}
|
|
|
|
static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
|
|
{
|
|
struct timespec64 now;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_process_info *offset = sbi->ll_rw_offset_info;
|
|
struct ll_rw_process_info *process = sbi->ll_rw_process_info;
|
|
int i;
|
|
|
|
ktime_get_real_ts64(&now);
|
|
|
|
if (!sbi->ll_rw_stats_on) {
|
|
seq_printf(seq, "disabled\n"
|
|
"write anything in this file to activate, then 0 or \"[D/d]isabled\" to deactivate\n");
|
|
return 0;
|
|
}
|
|
spin_lock(&sbi->ll_process_lock);
|
|
|
|
seq_printf(seq, "snapshot_time: %llu.%09lu (secs.usecs)\n",
|
|
(s64)now.tv_sec, (unsigned long)now.tv_nsec);
|
|
seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
|
|
"R/W", "PID", "RANGE START", "RANGE END",
|
|
"SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
|
|
/* We stored the discontiguous offsets here; print them first */
|
|
for (i = 0; i < LL_OFFSET_HIST_MAX; i++) {
|
|
if (offset[i].rw_pid != 0)
|
|
seq_printf(seq,
|
|
"%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
|
|
offset[i].rw_op == READ ? 'R' : 'W',
|
|
offset[i].rw_pid,
|
|
offset[i].rw_range_start,
|
|
offset[i].rw_range_end,
|
|
(unsigned long)offset[i].rw_smallest_extent,
|
|
(unsigned long)offset[i].rw_largest_extent,
|
|
offset[i].rw_offset);
|
|
}
|
|
/* Then print the current offsets for each process */
|
|
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
|
|
if (process[i].rw_pid != 0)
|
|
seq_printf(seq,
|
|
"%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
|
|
process[i].rw_op == READ ? 'R' : 'W',
|
|
process[i].rw_pid,
|
|
process[i].rw_range_start,
|
|
process[i].rw_last_file_pos,
|
|
(unsigned long)process[i].rw_smallest_extent,
|
|
(unsigned long)process[i].rw_largest_extent,
|
|
process[i].rw_offset);
|
|
}
|
|
spin_unlock(&sbi->ll_process_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t ll_rw_offset_stats_seq_write(struct file *file,
|
|
const char __user *buf,
|
|
size_t len, loff_t *off)
|
|
{
|
|
struct seq_file *seq = file->private_data;
|
|
struct ll_sb_info *sbi = seq->private;
|
|
struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
|
|
struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
|
|
int value = 1, rc = 0;
|
|
|
|
if (len == 0)
|
|
return -EINVAL;
|
|
|
|
rc = lprocfs_write_helper(buf, len, &value);
|
|
|
|
if (rc < 0 && len < 16) {
|
|
char kernbuf[16];
|
|
|
|
if (copy_from_user(kernbuf, buf, len))
|
|
return -EFAULT;
|
|
kernbuf[len] = 0;
|
|
|
|
if (kernbuf[len - 1] == '\n')
|
|
kernbuf[len - 1] = 0;
|
|
|
|
if (strcmp(kernbuf, "disabled") == 0 ||
|
|
strcmp(kernbuf, "Disabled") == 0)
|
|
value = 0;
|
|
}
|
|
|
|
if (value == 0)
|
|
sbi->ll_rw_stats_on = 0;
|
|
else
|
|
sbi->ll_rw_stats_on = 1;
|
|
|
|
spin_lock(&sbi->ll_process_lock);
|
|
sbi->ll_offset_process_count = 0;
|
|
sbi->ll_rw_offset_entry_count = 0;
|
|
memset(process_info, 0, sizeof(struct ll_rw_process_info) *
|
|
LL_PROCESS_HIST_MAX);
|
|
memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
|
|
LL_OFFSET_HIST_MAX);
|
|
spin_unlock(&sbi->ll_process_lock);
|
|
|
|
return len;
|
|
}
|
|
|
|
LPROC_SEQ_FOPS(ll_rw_offset_stats);
|
|
|
|
void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars)
|
|
{
|
|
lvars->obd_vars = lprocfs_llite_obd_vars;
|
|
}
|