https://github.com/torvalds/linux
Tip revision: b6fd41e29dea9c6753b1843a77e50433e6123bcb authored by Linus Torvalds on 12 September 2011, 21:02:02 UTC
Linux 3.1-rc6
Linux 3.1-rc6
Tip revision: b6fd41e
xfs_qm_stats.c
/*
* Copyright (c) 2000-2003 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would 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
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_bit.h"
#include "xfs_log.h"
#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_alloc.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_inode.h"
#include "xfs_itable.h"
#include "xfs_bmap.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_attr.h"
#include "xfs_buf_item.h"
#include "xfs_qm.h"
struct xqmstats xqmstats;
static int xqm_proc_show(struct seq_file *m, void *v)
{
/* maximum; incore; ratio free to inuse; freelist */
seq_printf(m, "%d\t%d\t%d\t%u\n",
ndquot,
xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
xfs_Gqm? xfs_Gqm->qm_dqfrlist_cnt : 0);
return 0;
}
static int xqm_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, xqm_proc_show, NULL);
}
static const struct file_operations xqm_proc_fops = {
.owner = THIS_MODULE,
.open = xqm_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int xqmstat_proc_show(struct seq_file *m, void *v)
{
/* quota performance statistics */
seq_printf(m, "qm %u %u %u %u %u %u %u %u\n",
xqmstats.xs_qm_dqreclaims,
xqmstats.xs_qm_dqreclaim_misses,
xqmstats.xs_qm_dquot_dups,
xqmstats.xs_qm_dqcachemisses,
xqmstats.xs_qm_dqcachehits,
xqmstats.xs_qm_dqwants,
xqmstats.xs_qm_dqshake_reclaims,
xqmstats.xs_qm_dqinact_reclaims);
return 0;
}
static int xqmstat_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, xqmstat_proc_show, NULL);
}
static const struct file_operations xqmstat_proc_fops = {
.owner = THIS_MODULE,
.open = xqmstat_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
void
xfs_qm_init_procfs(void)
{
proc_create("fs/xfs/xqmstat", 0, NULL, &xqmstat_proc_fops);
proc_create("fs/xfs/xqm", 0, NULL, &xqm_proc_fops);
}
void
xfs_qm_cleanup_procfs(void)
{
remove_proc_entry("fs/xfs/xqm", NULL);
remove_proc_entry("fs/xfs/xqmstat", NULL);
}