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xfs: use common code for quota statistics 

Switch the quota code over to use the generic XFS statistics infrastructure.
While the legacy /proc/fs/xfs/xqm and /proc/fs/xfs/xqmstats interfaces are
preserved for now the statistics that still have a meaning with the current
code are now also available from /proc/fs/xfs/stats.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Christoph Hellwig 2012-03-13 08:52:33 +00:00 committed by Ben Myers
parent 8f639ddea0
commit 48776fd223
9 changed files with 110 additions and 187 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/xfs/Makefile
View File

@ -96,9 +96,6 @@ xfs-$(CONFIG_XFS_QUOTA) += xfs_dquot.o \
xfs_qm_bhv.o \
xfs_qm.o \
xfs_quotaops.o
ifeq ($(CONFIG_XFS_QUOTA),y)
xfs-$(CONFIG_PROC_FS) += xfs_qm_stats.o
endif
xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
xfs-$(CONFIG_PROC_FS) += xfs_stats.o

14
fs/xfs/xfs_dquot.c
View File

@ -74,7 +74,7 @@ xfs_qm_dqdestroy(
mutex_destroy(&dqp->q_qlock);
kmem_zone_free(xfs_Gqm->qm_dqzone, dqp);
atomic_dec(&xfs_Gqm->qm_totaldquots);
XFS_STATS_DEC(xs_qm_dquot);
}
/*
@ -516,7 +516,7 @@ xfs_qm_dqread(
if (!(type & XFS_DQ_USER))
lockdep_set_class(&dqp->q_qlock, &xfs_dquot_other_class);
atomic_inc(&xfs_Gqm->qm_totaldquots);
XFS_STATS_INC(xs_qm_dquot);
trace_xfs_dqread(dqp);
@ -712,12 +712,12 @@ xfs_qm_dqget(
*/
switch (xfs_qm_dqlookup(mp, id, h, O_dqpp)) {
case -1:
XQM_STATS_INC(xqmstats.xs_qm_dquot_dups);
XFS_STATS_INC(xs_qm_dquot_dups);
mutex_unlock(&h->qh_lock);
delay(1);
goto restart;
case 0:
XQM_STATS_INC(xqmstats.xs_qm_dqcachehits);
XFS_STATS_INC(xs_qm_dqcachehits);
/*
* The dquot was found, moved to the front of the chain,
* taken off the freelist if it was on it, and locked
@ -729,7 +729,7 @@ xfs_qm_dqget(
trace_xfs_dqget_hit(*O_dqpp);
return 0; /* success */
default:
XQM_STATS_INC(xqmstats.xs_qm_dqcachemisses);
XFS_STATS_INC(xs_qm_dqcachemisses);
break;
}
@ -804,7 +804,7 @@ xfs_qm_dqget(
xfs_qm_dqput(tmpdqp);
mutex_unlock(&h->qh_lock);
xfs_qm_dqdestroy(dqp);
XQM_STATS_INC(xqmstats.xs_qm_dquot_dups);
XFS_STATS_INC(xs_qm_dquot_dups);
goto restart;
default:
break;
@ -873,6 +873,7 @@ xfs_qm_dqput(
if (list_empty(&dqp->q_freelist)) {
list_add_tail(&dqp->q_freelist, &xfs_Gqm->qm_dqfrlist);
xfs_Gqm->qm_dqfrlist_cnt++;
XFS_STATS_INC(xs_qm_dquot_unused);
}
mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
@ -1178,6 +1179,7 @@ xfs_qm_dqpurge(
ASSERT(!list_empty(&dqp->q_freelist));
list_del_init(&dqp->q_freelist);
xfs_Gqm->qm_dqfrlist_cnt--;
XFS_STATS_DEC(xs_qm_dquot_unused);
mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
xfs_qm_dqdestroy(dqp);

9
fs/xfs/xfs_qm.c
View File

@ -134,7 +134,6 @@ xfs_Gqm_init(void)
} else
xqm->qm_dqtrxzone = qm_dqtrxzone;
atomic_set(&xqm->qm_totaldquots, 0);
xqm->qm_nrefs = 0;
return xqm;
@ -1637,10 +1636,11 @@ xfs_qm_dqreclaim_one(
xfs_dqunlock(dqp);
trace_xfs_dqreclaim_want(dqp);
XQM_STATS_INC(xqmstats.xs_qm_dqwants);
XFS_STATS_INC(xs_qm_dqwants);
list_del_init(&dqp->q_freelist);
xfs_Gqm->qm_dqfrlist_cnt--;
XFS_STATS_DEC(xs_qm_dquot_unused);
return;
}
@ -1690,9 +1690,10 @@ xfs_qm_dqreclaim_one(
ASSERT(dqp->q_nrefs == 0);
list_move_tail(&dqp->q_freelist, dispose_list);
xfs_Gqm->qm_dqfrlist_cnt--;
XFS_STATS_DEC(xs_qm_dquot_unused);
trace_xfs_dqreclaim_done(dqp);
XQM_STATS_INC(xqmstats.xs_qm_dqreclaims);
XFS_STATS_INC(xs_qm_dqreclaims);
return;
out_busy:
@ -1704,7 +1705,7 @@ xfs_qm_dqreclaim_one(
list_move_tail(&dqp->q_freelist, &xfs_Gqm->qm_dqfrlist);
trace_xfs_dqreclaim_busy(dqp);
XQM_STATS_INC(xqmstats.xs_qm_dqreclaim_misses);
XFS_STATS_INC(xs_qm_dqreclaim_misses);
}
STATIC int

2
fs/xfs/xfs_qm.h
View File

@ -21,7 +21,6 @@
#include "xfs_dquot_item.h"
#include "xfs_dquot.h"
#include "xfs_quota_priv.h"
#include "xfs_qm_stats.h"
struct xfs_qm;
struct xfs_inode;
@ -60,7 +59,6 @@ typedef struct xfs_qm {
struct list_head qm_dqfrlist; /* freelist of dquots */
struct mutex qm_dqfrlist_lock;
int qm_dqfrlist_cnt;
atomic_t qm_totaldquots; /* total incore dquots */
uint qm_nrefs; /* file systems with quota on */
kmem_zone_t *qm_dqzone; /* dquot mem-alloc zone */
kmem_zone_t *qm_dqtrxzone; /* t_dqinfo of transactions */

2
fs/xfs/xfs_qm_bhv.c
View File

@ -162,13 +162,11 @@ xfs_qm_init(void)
{
printk(KERN_INFO "SGI XFS Quota Management subsystem\n");
mutex_init(&xfs_Gqm_lock);
xfs_qm_init_procfs();
}
void __exit
xfs_qm_exit(void)
{
xfs_qm_cleanup_procfs();
if (qm_dqzone)
kmem_zone_destroy(qm_dqzone);
if (qm_dqtrxzone)

105
fs/xfs/xfs_qm_stats.c
View File

@ -1,105 +0,0 @@
/*
* 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",
0,
xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
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);
}

53
fs/xfs/xfs_qm_stats.h
View File

@ -1,53 +0,0 @@
/*
* Copyright (c) 2002 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
*/
#ifndef __XFS_QM_STATS_H__
#define __XFS_QM_STATS_H__
#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF)
/*
* XQM global statistics
*/
struct xqmstats {
__uint32_t xs_qm_dqreclaims;
__uint32_t xs_qm_dqreclaim_misses;
__uint32_t xs_qm_dquot_dups;
__uint32_t xs_qm_dqcachemisses;
__uint32_t xs_qm_dqcachehits;
__uint32_t xs_qm_dqwants;
__uint32_t xs_qm_dqshake_reclaims;
__uint32_t xs_qm_dqinact_reclaims;
};
extern struct xqmstats xqmstats;
# define XQM_STATS_INC(count) ( (count)++ )
extern void xfs_qm_init_procfs(void);
extern void xfs_qm_cleanup_procfs(void);
#else
# define XQM_STATS_INC(count) do { } while (0)
static inline void xfs_qm_init_procfs(void) { };
static inline void xfs_qm_cleanup_procfs(void) { };
#endif
#endif /* __XFS_QM_STATS_H__ */

99
fs/xfs/xfs_stats.c
View File

@ -20,9 +20,18 @@
DEFINE_PER_CPU(struct xfsstats, xfsstats);
static int counter_val(int idx)
{
int val = 0, cpu;
for_each_possible_cpu(cpu)
val += *(((__u32 *)&per_cpu(xfsstats, cpu) + idx));
return val;
}
static int xfs_stat_proc_show(struct seq_file *m, void *v)
{
int c, i, j, val;
int i, j;
__uint64_t xs_xstrat_bytes = 0;
__uint64_t xs_write_bytes = 0;
__uint64_t xs_read_bytes = 0;
@ -50,20 +59,16 @@ static int xfs_stat_proc_show(struct seq_file *m, void *v)
{ "abtc2", XFSSTAT_END_ABTC_V2 },
{ "bmbt2", XFSSTAT_END_BMBT_V2 },
{ "ibt2", XFSSTAT_END_IBT_V2 },
/* we print both series of quota information together */
{ "qm", XFSSTAT_END_QM },
};
/* Loop over all stats groups */
for (i=j = 0; i < ARRAY_SIZE(xstats); i++) {
for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
seq_printf(m, "%s", xstats[i].desc);
/* inner loop does each group */
while (j < xstats[i].endpoint) {
val = 0;
/* sum over all cpus */
for_each_possible_cpu(c)
val += *(((__u32*)&per_cpu(xfsstats, c) + j));
seq_printf(m, " %u", val);
j++;
}
for (; j < xstats[i].endpoint; j++)
seq_printf(m, " %u", counter_val(j));
seq_putc(m, '\n');
}
/* extra precision counters */
@ -97,6 +102,58 @@ static const struct file_operations xfs_stat_proc_fops = {
.release = single_release,
};
/* legacy quota interfaces */
#ifdef CONFIG_XFS_QUOTA
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",
0,
counter_val(XFSSTAT_END_XQMSTAT),
0,
counter_val(XFSSTAT_END_XQMSTAT + 1));
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,
};
/* legacy quota stats interface no 2 */
static int xqmstat_proc_show(struct seq_file *m, void *v)
{
int j;
seq_printf(m, "qm");
for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
seq_printf(m, " %u", counter_val(j));
seq_putc(m, '\n');
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,
};
#endif /* CONFIG_XFS_QUOTA */
int
xfs_init_procfs(void)
{
@ -105,10 +162,24 @@ xfs_init_procfs(void)
if (!proc_create("fs/xfs/stat", 0, NULL,
&xfs_stat_proc_fops))
goto out_remove_entry;
goto out_remove_xfs_dir;
#ifdef CONFIG_XFS_QUOTA
if (!proc_create("fs/xfs/xqmstat", 0, NULL,
&xqmstat_proc_fops))
goto out_remove_stat_file;
if (!proc_create("fs/xfs/xqm", 0, NULL,
&xqm_proc_fops))
goto out_remove_xqmstat_file;
#endif
return 0;
out_remove_entry:
#ifdef CONFIG_XFS_QUOTA
out_remove_xqmstat_file:
remove_proc_entry("fs/xfs/xqmstat", NULL);
out_remove_stat_file:
remove_proc_entry("fs/xfs/stat", NULL);
#endif
out_remove_xfs_dir:
remove_proc_entry("fs/xfs", NULL);
out:
return -ENOMEM;
@ -117,6 +188,10 @@ xfs_init_procfs(void)
void
xfs_cleanup_procfs(void)
{
#ifdef CONFIG_XFS_QUOTA
remove_proc_entry("fs/xfs/xqm", NULL);
remove_proc_entry("fs/xfs/xqmstat", NULL);
#endif
remove_proc_entry("fs/xfs/stat", NULL);
remove_proc_entry("fs/xfs", NULL);
}

10
fs/xfs/xfs_stats.h
View File

@ -183,6 +183,16 @@ struct xfsstats {
__uint32_t xs_ibt_2_alloc;
__uint32_t xs_ibt_2_free;
__uint32_t xs_ibt_2_moves;
#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_IBT_V2+6)
__uint32_t xs_qm_dqreclaims;
__uint32_t xs_qm_dqreclaim_misses;
__uint32_t xs_qm_dquot_dups;
__uint32_t xs_qm_dqcachemisses;
__uint32_t xs_qm_dqcachehits;
__uint32_t xs_qm_dqwants;
#define XFSSTAT_END_QM (XFSSTAT_END_XQMSTAT+2)
__uint32_t xs_qm_dquot;
__uint32_t xs_qm_dquot_unused;
/* Extra precision counters */
__uint64_t xs_xstrat_bytes;
__uint64_t xs_write_bytes;