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linux-sg2042/fs/xfs/xfs_stats.h

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/*
* Copyright (c) 2000,2005 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_STATS_H__
#define __XFS_STATS_H__
#include <linux/percpu.h>
/*
* The btree stats arrays have fixed offsets for the different stats. We
* store the base index in the btree cursor via XFS_STATS_CALC_INDEX() and
* that allows us to use fixed offsets into the stats array for each btree
* stat. These index offsets are defined in the order they will be emitted
* in the stats files, so it is possible to add new btree stat types by
* appending to the enum list below.
*/
enum {
__XBTS_lookup = 0,
__XBTS_compare = 1,
__XBTS_insrec = 2,
__XBTS_delrec = 3,
__XBTS_newroot = 4,
__XBTS_killroot = 5,
__XBTS_increment = 6,
__XBTS_decrement = 7,
__XBTS_lshift = 8,
__XBTS_rshift = 9,
__XBTS_split = 10,
__XBTS_join = 11,
__XBTS_alloc = 12,
__XBTS_free = 13,
__XBTS_moves = 14,
__XBTS_MAX = 15,
};
/*
* XFS global statistics
*/
struct __xfsstats {
# define XFSSTAT_END_EXTENT_ALLOC 4
__uint32_t xs_allocx;
__uint32_t xs_allocb;
__uint32_t xs_freex;
__uint32_t xs_freeb;
# define XFSSTAT_END_ALLOC_BTREE (XFSSTAT_END_EXTENT_ALLOC+4)
__uint32_t xs_abt_lookup;
__uint32_t xs_abt_compare;
__uint32_t xs_abt_insrec;
__uint32_t xs_abt_delrec;
# define XFSSTAT_END_BLOCK_MAPPING (XFSSTAT_END_ALLOC_BTREE+7)
__uint32_t xs_blk_mapr;
__uint32_t xs_blk_mapw;
__uint32_t xs_blk_unmap;
__uint32_t xs_add_exlist;
__uint32_t xs_del_exlist;
__uint32_t xs_look_exlist;
__uint32_t xs_cmp_exlist;
# define XFSSTAT_END_BLOCK_MAP_BTREE (XFSSTAT_END_BLOCK_MAPPING+4)
__uint32_t xs_bmbt_lookup;
__uint32_t xs_bmbt_compare;
__uint32_t xs_bmbt_insrec;
__uint32_t xs_bmbt_delrec;
# define XFSSTAT_END_DIRECTORY_OPS (XFSSTAT_END_BLOCK_MAP_BTREE+4)
__uint32_t xs_dir_lookup;
__uint32_t xs_dir_create;
__uint32_t xs_dir_remove;
__uint32_t xs_dir_getdents;
# define XFSSTAT_END_TRANSACTIONS (XFSSTAT_END_DIRECTORY_OPS+3)
__uint32_t xs_trans_sync;
__uint32_t xs_trans_async;
__uint32_t xs_trans_empty;
# define XFSSTAT_END_INODE_OPS (XFSSTAT_END_TRANSACTIONS+7)
__uint32_t xs_ig_attempts;
__uint32_t xs_ig_found;
__uint32_t xs_ig_frecycle;
__uint32_t xs_ig_missed;
__uint32_t xs_ig_dup;
__uint32_t xs_ig_reclaims;
__uint32_t xs_ig_attrchg;
# define XFSSTAT_END_LOG_OPS (XFSSTAT_END_INODE_OPS+5)
__uint32_t xs_log_writes;
__uint32_t xs_log_blocks;
__uint32_t xs_log_noiclogs;
__uint32_t xs_log_force;
__uint32_t xs_log_force_sleep;
# define XFSSTAT_END_TAIL_PUSHING (XFSSTAT_END_LOG_OPS+10)
__uint32_t xs_try_logspace;
__uint32_t xs_sleep_logspace;
__uint32_t xs_push_ail;
__uint32_t xs_push_ail_success;
__uint32_t xs_push_ail_pushbuf;
__uint32_t xs_push_ail_pinned;
__uint32_t xs_push_ail_locked;
__uint32_t xs_push_ail_flushing;
__uint32_t xs_push_ail_restarts;
__uint32_t xs_push_ail_flush;
# define XFSSTAT_END_WRITE_CONVERT (XFSSTAT_END_TAIL_PUSHING+2)
__uint32_t xs_xstrat_quick;
__uint32_t xs_xstrat_split;
# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
__uint32_t xs_write_calls;
__uint32_t xs_read_calls;
# define XFSSTAT_END_ATTRIBUTE_OPS (XFSSTAT_END_READ_WRITE_OPS+4)
__uint32_t xs_attr_get;
__uint32_t xs_attr_set;
__uint32_t xs_attr_remove;
__uint32_t xs_attr_list;
# define XFSSTAT_END_INODE_CLUSTER (XFSSTAT_END_ATTRIBUTE_OPS+3)
__uint32_t xs_iflush_count;
__uint32_t xs_icluster_flushcnt;
__uint32_t xs_icluster_flushinode;
# define XFSSTAT_END_VNODE_OPS (XFSSTAT_END_INODE_CLUSTER+8)
__uint32_t vn_active; /* # vnodes not on free lists */
__uint32_t vn_alloc; /* # times vn_alloc called */
__uint32_t vn_get; /* # times vn_get called */
__uint32_t vn_hold; /* # times vn_hold called */
__uint32_t vn_rele; /* # times vn_rele called */
__uint32_t vn_reclaim; /* # times vn_reclaim called */
__uint32_t vn_remove; /* # times vn_remove called */
__uint32_t vn_free; /* # times vn_free called */
#define XFSSTAT_END_BUF (XFSSTAT_END_VNODE_OPS+9)
__uint32_t xb_get;
__uint32_t xb_create;
__uint32_t xb_get_locked;
__uint32_t xb_get_locked_waited;
__uint32_t xb_busy_locked;
__uint32_t xb_miss_locked;
__uint32_t xb_page_retries;
__uint32_t xb_page_found;
__uint32_t xb_get_read;
/* Version 2 btree counters */
#define XFSSTAT_END_ABTB_V2 (XFSSTAT_END_BUF + __XBTS_MAX)
__uint32_t xs_abtb_2[__XBTS_MAX];
#define XFSSTAT_END_ABTC_V2 (XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
__uint32_t xs_abtc_2[__XBTS_MAX];
#define XFSSTAT_END_BMBT_V2 (XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
__uint32_t xs_bmbt_2[__XBTS_MAX];
#define XFSSTAT_END_IBT_V2 (XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
__uint32_t xs_ibt_2[__XBTS_MAX];
#define XFSSTAT_END_FIBT_V2 (XFSSTAT_END_IBT_V2 + __XBTS_MAX)
__uint32_t xs_fibt_2[__XBTS_MAX];
#define XFSSTAT_END_RMAP_V2 (XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
__uint32_t xs_rmap_2[__XBTS_MAX];
#define XFSSTAT_END_REFCOUNT (XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
__uint32_t xs_refcbt_2[__XBTS_MAX];
#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_REFCOUNT + 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;
__uint64_t xs_read_bytes;
};
struct xfsstats {
union {
struct __xfsstats s;
uint32_t a[XFSSTAT_END_XQMSTAT];
};
};
/*
* simple wrapper for getting the array index of s struct member offset
*/
#define XFS_STATS_CALC_INDEX(member) \
(offsetof(struct __xfsstats, member) / (int)sizeof(__uint32_t))
int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
void xfs_stats_clearall(struct xfsstats __percpu *stats);
extern struct xstats xfsstats;
#define XFS_STATS_INC(mp, v) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++; \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++; \
} while (0)
#define XFS_STATS_DEC(mp, v) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--; \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--; \
} while (0)
#define XFS_STATS_ADD(mp, v, inc) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc); \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc); \
} while (0)
#define XFS_STATS_INC_OFF(mp, off) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++; \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++; \
} while (0)
#define XFS_STATS_DEC_OFF(mp, off) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]; \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]; \
} while (0)
#define XFS_STATS_ADD_OFF(mp, off, inc) \
do { \
per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc); \
per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc); \
} while (0)
#if defined(CONFIG_PROC_FS)
extern int xfs_init_procfs(void);
extern void xfs_cleanup_procfs(void);
#else /* !CONFIG_PROC_FS */
static inline int xfs_init_procfs(void)
{
return 0;
}
static inline void xfs_cleanup_procfs(void)
{
}
#endif /* !CONFIG_PROC_FS */
#endif /* __XFS_STATS_H__ */
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