[blktrace.git] / btt / globals.h

/*
 * blktrace output analysis: generate a timeline & gather statistics
 *
 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
 *
 *  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; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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 for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#include <stdio.h>
#include <string.h>
#include <time.h>

#include "blktrace.h"
#include "rbtree.h"
#include "list.h"

/*
 * 0 == 1 blk
 * 1 == 2 blks
 * ...
 * 1022 == 1023 blks
 * 1023 == 1024 blks
 * 1024 == > 1024 blks
 */
#define N_HIST_BKTS	1025

#define BIT_TIME(t)	((double)SECONDS(t) + ((double)NANO_SECONDS(t) / 1.0e9))

#define BIT_START(iop)	((iop)->t.sector)
#define BIT_END(iop)	((iop)->t.sector + ((iop)->t.bytes >> 9))
#define IOP_READ(iop)	((iop)->t.action & BLK_TC_ACT(BLK_TC_READ))
#define IOP_RW(iop)	(IOP_READ(iop) ? 1 : 0)

#define TO_SEC(nanosec)	((double)(nanosec) / 1.0e9)
#define TO_MSEC(nanosec) (1000.0 * TO_SEC(nanosec))

enum iop_type {
	IOP_Q = 0,
	IOP_X = 1,
	IOP_A = 2,
	IOP_G = 3,
	IOP_M = 4,
	IOP_D = 5,
	IOP_C = 6,
	IOP_R = 7,
	IOP_I = 8,
	IOP_S = 9
};
#define N_IOP_TYPES	(IOP_S + 1)

struct file_info {
	struct file_info *next;
	FILE *ofp;
	char *oname;
};

struct mode {
	int most_seeks, nmds;
	long long *modes;
};

struct io;
struct io_list {
	struct list_head head;
	struct io *iop;
	int cy_users;
};

struct avg_info {
	__u64 min, max, total;
	double avg;
	int n;
};

struct avgs_info {
        struct avg_info q2q_dm;
        struct avg_info q2a_dm;
        struct avg_info q2c_dm;

        struct avg_info q2q;
	struct avg_info q2a;
	struct avg_info q2g;
	struct avg_info s2g;
	struct avg_info g2i;
	struct avg_info q2m;
	struct avg_info i2d;
	struct avg_info m2d;
	struct avg_info d2c;
	struct avg_info q2c;

	struct avg_info blks;		/* Blocks transferred */
};

struct range_info {
	struct list_head head;		/* on: qranges OR cranges */
	__u64 start, end;
};

struct region_info {
	struct list_head qranges;
	struct list_head cranges;
};

struct p_info {
	struct region_info regions;
	struct avgs_info avgs;
	__u64 last_q;
	__u32 pid;
	char *name;
};

struct devmap {
	struct devmap *next;
	unsigned int host, bus, target, lun, irq, cpu;
	char model[64];
	char device[32], node[32], pci[32], devno[32];
};

struct stats {
	__u64 rqm[2], ios[2], sec[2], wait, svctm;
	double last_qu_change, last_dev_change, tot_qusz, idle_time;
	int cur_qusz, cur_dev;
};

struct stats_t {
	double n;
	double rqm_s[2], ios_s[2], sec_s[2];
	double avgrq_sz, avgqu_sz, await, svctm, p_util;
};

struct d_info {
	struct list_head all_head, hash_head;
	void *heads;
	struct region_info regions;
	struct devmap *map;
	void *q2q_handle, *seek_handle, *bno_dump_handle, *unplug_hist_handle;
	void *q2d_priv;
	FILE *d2c_ofp, *q2c_ofp;
	struct avgs_info avgs;
	struct stats stats, all_stats;
	__u64 last_q, n_qs, n_ds;
	__u64 n_act_q, t_act_q;	/* # currently active when Q comes in */
	__u32 device;

	int pre_culling;
	int is_plugged, nplugs, nplugs_t, n_timer_unplugs;
	__u64 nios_up, nios_upt;
	double start_time, last_plug, plugged_time, end_time;
};

struct io {
	struct rb_node rb_node;
	struct list_head f_head, a_head;
	struct d_info *dip;
	struct p_info *pip;
	void *pdu;
	__u64 bytes_left, g_time, i_time, m_time, d_time, c_time, d_sec, c_sec;
	__u64 s_time;
	__u32 d_nsec, c_nsec;

	struct blk_io_trace t;

	int linked;
	enum iop_type type;
};

/* bt_timeline.c */

extern char bt_timeline_version[], *devices, *exes, *input_name, *output_name;
extern char *seek_name, *iostat_name, *d2c_name, *q2c_name, *per_io_name;
extern char *bno_dump_name, *unplug_hist_name, *sps_name;
extern double range_delta;
extern FILE *ranges_ofp, *avgs_ofp, *xavgs_ofp, *iostat_ofp, *per_io_ofp;
extern FILE *msgs_ofp;
extern int verbose, done, time_bounded, output_all_data, seek_absolute;
extern int easy_parse_avgs;
extern unsigned int n_devs;
extern unsigned long n_traces;
extern struct list_head all_devs, all_procs;
extern struct avgs_info all_avgs;
extern __u64 last_q;
extern struct region_info all_regions;
extern struct list_head all_ios, free_ios;
extern __u64 iostat_interval, iostat_last_stamp;
extern time_t genesis, last_vtrace;
extern double t_astart, t_aend;
extern __u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS];

/* args.c */
void handle_args(int argc, char *argv[]);
void clean_args();

/* devmap.c */
int dev_map_read(char *fname);
struct devmap *dev_map_find(__u32 device);
void dev_map_exit(void);

/* devs.c */
void init_dev_heads(void);
struct d_info *dip_add(__u32 device, struct io *iop);
void dip_rem(struct io *iop);
struct d_info *__dip_find(__u32 device);
void dip_foreach_list(struct io *iop, enum iop_type type, struct list_head *hd);
void dip_foreach(struct io *iop, enum iop_type type,
		 void (*fnc)(struct io *iop, struct io *this), int rm_after);
struct io *dip_find_sec(struct d_info *dip, enum iop_type type, __u64 sec);
void dip_foreach_out(void (*func)(struct d_info *, void *), void *arg);
void dip_plug(__u32 dev, double cur_time);
void dip_unplug(__u32 dev, double cur_time, __u64 nio_ups);
void dip_unplug_tm(__u32 dev, __u64 nio_ups);
void dip_exit(void);

/* dip_rb.c */
int rb_insert(struct rb_root *root, struct io *iop);
struct io *rb_find_sec(struct rb_root *root, __u64 sec);
void rb_foreach(struct rb_node *n, struct io *iop,
		      void (*fnc)(struct io *iop, struct io *this),
		      struct list_head *head);

/* iostat.c */
void iostat_init(void);
void iostat_getrq(struct io *iop);
void iostat_merge(struct io *iop);
void iostat_issue(struct io *iop);
void iostat_unissue(struct io *iop);
void iostat_complete(struct io *d_iop, struct io *c_iop);
void iostat_check_time(__u64 stamp);
void iostat_dump_stats(__u64 stamp, int all);

/* latency.c */
void latency_init(struct d_info *dip);
void latency_clean(void);
void latency_d2c(struct d_info *dip, __u64 tstamp, __u64 latency);
void latency_q2c(struct d_info *dip, __u64 tstamp, __u64 latency);

/* misc.c */
int in_devices(struct blk_io_trace *t);
void add_file(struct file_info **fipp, FILE *fp, char *oname);
void clean_files(struct file_info **fipp);
void add_buf(void *buf);
void clean_bufs(void);
char *make_dev_hdr(char *pad, size_t len, struct d_info *dip, int add_parens);
void dbg_ping(void);

/* mmap.c */
void setup_ifile(char *fname);
void cleanup_ifile(void);
int next_trace(struct blk_io_trace *t, void **pdu);
double pct_done(void);

/* output.c */
int output_avgs(FILE *ofp);
int output_ranges(FILE *ofp);

/* proc.c */
void add_process(__u32 pid, char *name);
struct p_info *find_process(__u32 pid, char *name);
void pip_update_q(struct io *iop);
void pip_foreach_out(void (*f)(struct p_info *, void *), void *arg);
void pip_exit(void);

/* bno_dump.c */
void *bno_dump_init(__u32 device);
void bno_dump_exit(void *param);
void bno_dump_add(void *handle, struct io *iop);
void bno_dump_clean(void);

/* q2d.c */
void q2d_histo_add(void *priv, __u64 q2d);
void *q2d_init(void);
void q2d_release(void *priv);
void q2d_display_header(FILE *fp);
void q2d_display_dashes(FILE *fp);
void q2d_display(FILE *fp, void *priv);
int q2d_ok(void *priv);
void q2d_acc(void *a1, void *a2);

/* seek.c */
void *seeki_init(char *str);
void seeki_exit(void *param);
void seek_clean(void);
void seeki_add(void *handle, struct io *iop);
double seeki_mean(void *handle);
long long seeki_nseeks(void *handle);
long long seeki_median(void *handle);
int seeki_mode(void *handle, struct mode *mp);

/* trace.c */
void add_trace(struct io *iop);

/* trace_complete.c */
void trace_complete(struct io *c_iop);

/* trace_im.c */
void run_im(struct io *im_iop, struct io *d_iop, struct io *c_iop);
void run_unim(struct io *im_iop, struct io *d_iop, struct io *c_iop);
int ready_im(struct io *im_iop, struct io *c_iop);
void trace_insert(struct io *i_iop);
void trace_merge(struct io *m_iop);
void trace_getrq(struct io *g_iop);
void trace_sleeprq(struct io *s_iop);

/* trace_issue.c */
void run_issue(struct io *d_iop, struct io *u_iop, struct io *c_iop);
void run_unissue(struct io *d_iop, struct io *u_iop, struct io *c_iop);
int ready_issue(struct io *d_iop, struct io *c_iop);
void trace_issue(struct io *d_iop);

/* trace_plug.c */
__u64 get_nio_up(struct io *u_iop);
void trace_plug(struct io *p_iop);
void trace_unplug_io(struct io *u_iop);
void trace_unplug_timer(struct io *u_iop);

/* trace_queue.c */
void run_queue(struct io *q_iop, struct io *u_iop, struct io *c_iop);
int ready_queue(struct io *q_iop, struct io *c_iop);
void trace_queue(struct io *q_iop);

/* trace_remap.c */
void run_remap(struct io *a_iop, struct io *u_iop, struct io *c_iop);
int ready_remap(struct io *a_iop, struct io *c_iop);
void trace_remap(struct io *a_iop);

/* trace_requeue.c */
void trace_requeue(struct io *r_iop);

/* unplug_hist.c */
void *unplug_hist_init(__u32 device);
void unplug_hist_exit(void *arg);
void unplug_hist_add(struct io *u_iop);

#include "inlines.h"
Commit	Line	Data
63eba147 JA	1	/*
	2	* blktrace output analysis: generate a timeline & gather statistics
	3	*
	4	* Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
63eba147 JA	21	#include <stdio.h>
63eba147 JA	22	#include <string.h>
6eb42155	23	#include <time.h>
63eba147 JA	24
63eba147 JA	25	#include "blktrace.h"
6eb42155	26	#include "rbtree.h"
63eba147 JA	27	#include "list.h"
63eba147 JA	28
fa0ab85d AB	29	/*
	30	* 0 == 1 blk
	31	* 1 == 2 blks
	32	* ...
	33	* 1022 == 1023 blks
	34	* 1023 == 1024 blks
	35	* 1024 == > 1024 blks
	36	*/
	37	#define N_HIST_BKTS 1025
	38
63eba147 JA	39	#define BIT_TIME(t) ((double)SECONDS(t) + ((double)NANO_SECONDS(t) / 1.0e9))
	40
	41	#define BIT_START(iop) ((iop)->t.sector)
	42	#define BIT_END(iop) ((iop)->t.sector + ((iop)->t.bytes >> 9))
5225e788	43	#define IOP_READ(iop) ((iop)->t.action & BLK_TC_ACT(BLK_TC_READ))
21e47d90	44	#define IOP_RW(iop) (IOP_READ(iop) ? 1 : 0)
63eba147	45
b2ecdd0f ADB	46	#define TO_SEC(nanosec) ((double)(nanosec) / 1.0e9)
	47	#define TO_MSEC(nanosec) (1000.0 * TO_SEC(nanosec))
	48
63eba147 JA	49	enum iop_type {
	50	IOP_Q = 0,
	51	IOP_X = 1,
	52	IOP_A = 2,
4c48f14e	53	IOP_G = 3,
095181f2	54	IOP_M = 4,
d76c5b81 AB	55	IOP_D = 5,
	56	IOP_C = 6,
	57	IOP_R = 7,
354db430 AB	58	IOP_I = 8,
354db430 AB	59	IOP_S = 9
63eba147	60	};
354db430	61	#define N_IOP_TYPES (IOP_S + 1)
63eba147	62
b2ecdd0f ADB	63	struct file_info {
	64	struct file_info *next;
	65	FILE *ofp;
69040794	66	char *oname;
b2ecdd0f ADB	67	};
b2ecdd0f ADB	68
6eb42155 ADB	69	struct mode {
	70	int most_seeks, nmds;
	71	long long *modes;
63eba147 JA	72	};
	73
	74	struct io;
	75	struct io_list {
	76	struct list_head head;
	77	struct io *iop;
	78	int cy_users;
	79	};
	80
	81	struct avg_info {
	82	__u64 min, max, total;
	83	double avg;
	84	int n;
	85	};
	86
	87	struct avgs_info {
ae6d30f4 AB	88	struct avg_info q2q_dm;
	89	struct avg_info q2a_dm;
	90	struct avg_info q2c_dm;
	91
63eba147	92	struct avg_info q2q;
ae6d30f4 AB	93	struct avg_info q2a;
ae6d30f4 AB	94	struct avg_info q2g;
354db430	95	struct avg_info s2g;
ae6d30f4 AB	96	struct avg_info g2i;
	97	struct avg_info q2m;
	98	struct avg_info i2d;
	99	struct avg_info m2d;
63eba147	100	struct avg_info d2c;
ae6d30f4	101	struct avg_info q2c;
63eba147 JA	102
	103	struct avg_info blks; /* Blocks transferred */
	104	};
	105
	106	struct range_info {
	107	struct list_head head; /* on: qranges OR cranges */
	108	__u64 start, end;
	109	};
	110
	111	struct region_info {
	112	struct list_head qranges;
	113	struct list_head cranges;
63eba147 JA	114	};
63eba147 JA	115
63eba147	116	struct p_info {
63eba147 JA	117	struct region_info regions;
63eba147 JA	118	struct avgs_info avgs;
63eba147	119	__u64 last_q;
6eb42155	120	__u32 pid;
69040794	121	char *name;
63eba147 JA	122	};
	123
	124	struct devmap {
	125	struct devmap *next;
6eb42155	126	unsigned int host, bus, target, lun, irq, cpu;
63eba147	127	char model[64];
6eb42155	128	char device[32], node[32], pci[32], devno[32];
63eba147 JA	129	};
63eba147 JA	130
21e47d90	131	struct stats {
6eb42155	132	__u64 rqm[2], ios[2], sec[2], wait, svctm;
21e47d90	133	double last_qu_change, last_dev_change, tot_qusz, idle_time;
6eb42155	134	int cur_qusz, cur_dev;
21e47d90 ADB	135	};
21e47d90 ADB	136
4a5cddba JA	137	struct stats_t {
	138	double n;
	139	double rqm_s[2], ios_s[2], sec_s[2];
	140	double avgrq_sz, avgqu_sz, await, svctm, p_util;
	141	};
	142
63eba147	143	struct d_info {
6eb42155 ADB	144	struct list_head all_head, hash_head;
6eb42155 ADB	145	void *heads;
63eba147	146	struct region_info regions;
63eba147	147	struct devmap *map;
4c48f14e	148	void q2q_handle, seek_handle, bno_dump_handle, unplug_hist_handle;
951ea56c	149	void *q2d_priv;
b2ecdd0f	150	FILE d2c_ofp, q2c_ofp;
6eb42155	151	struct avgs_info avgs;
21e47d90	152	struct stats stats, all_stats;
77f256cd	153	__u64 last_q, n_qs, n_ds;
50f73899	154	__u64 n_act_q, t_act_q; /* # currently active when Q comes in */
6eb42155	155	__u32 device;
b2822cea	156
11997716	157	int pre_culling;
b70a6642 AB	158	int is_plugged, nplugs, nplugs_t, n_timer_unplugs;
b70a6642 AB	159	__u64 nios_up, nios_upt;
b2822cea	160	double start_time, last_plug, plugged_time, end_time;
63eba147 JA	161	};
	162
	163	struct io {
6eb42155	164	struct rb_node rb_node;
8b10aae0	165	struct list_head f_head, a_head;
63eba147 JA	166	struct d_info *dip;
63eba147 JA	167	struct p_info *pip;
6eb42155	168	void *pdu;
ae6d30f4	169	__u64 bytes_left, g_time, i_time, m_time, d_time, c_time, d_sec, c_sec;
354db430	170	__u64 s_time;
4c48f14e AB	171	__u32 d_nsec, c_nsec;
4c48f14e AB	172
d76c5b81	173	struct blk_io_trace t;
4c48f14e	174
ae6d30f4	175	int linked;
63eba147	176	enum iop_type type;
d76c5b81	177	};
095181f2	178
6eb42155 ADB	179	/* bt_timeline.c */
6eb42155 ADB	180
63eba147	181	extern char bt_timeline_version[], devices, exes, input_name, output_name;
095181f2	182	extern char seek_name, iostat_name, d2c_name, q2c_name, *per_io_name;
ccf6d55e	183	extern char bno_dump_name, unplug_hist_name, *sps_name;
63eba147	184	extern double range_delta;
f028c958	185	extern FILE ranges_ofp, avgs_ofp, xavgs_ofp, iostat_ofp, *per_io_ofp;
84a26fcd	186	extern FILE *msgs_ofp;
69040794	187	extern int verbose, done, time_bounded, output_all_data, seek_absolute;
f028c958	188	extern int easy_parse_avgs;
63eba147	189	extern unsigned int n_devs;
6eb42155	190	extern unsigned long n_traces;
4c48f14e	191	extern struct list_head all_devs, all_procs;
63eba147	192	extern struct avgs_info all_avgs;
4c48f14e	193	extern __u64 last_q;
63eba147	194	extern struct region_info all_regions;
8b10aae0	195	extern struct list_head all_ios, free_ios;
21e47d90	196	extern __u64 iostat_interval, iostat_last_stamp;
6eb42155	197	extern time_t genesis, last_vtrace;
001b2633	198	extern double t_astart, t_aend;
fa0ab85d	199	extern __u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS];
63eba147	200
6eb42155	201	/* args.c */
63eba147	202	void handle_args(int argc, char *argv[]);
c8aea612	203	void clean_args();
6eb42155	204
69040794	205	/* devmap.c */
63eba147	206	int dev_map_read(char *fname);
6eb42155	207	struct devmap *dev_map_find(__u32 device);
69040794	208	void dev_map_exit(void);
63eba147	209
6eb42155 ADB	210	/* devs.c */
6eb42155 ADB	211	void init_dev_heads(void);
095181f2	212	struct d_info dip_add(__u32 device, struct io iop);
6eb42155 ADB	213	void dip_rem(struct io *iop);
6eb42155 ADB	214	struct d_info *__dip_find(__u32 device);
095181f2	215	void dip_foreach_list(struct io iop, enum iop_type type, struct list_head hd);
8b10aae0	216	void dip_foreach(struct io *iop, enum iop_type type,
6eb42155 ADB	217	void (fnc)(struct io iop, struct io *this), int rm_after);
	218	struct io dip_find_sec(struct d_info dip, enum iop_type type, __u64 sec);
	219	void dip_foreach_out(void (func)(struct d_info , void ), void arg);
b2822cea	220	void dip_plug(__u32 dev, double cur_time);
b70a6642 AB	221	void dip_unplug(__u32 dev, double cur_time, __u64 nio_ups);
b70a6642 AB	222	void dip_unplug_tm(__u32 dev, __u64 nio_ups);
69040794	223	void dip_exit(void);
6eb42155 ADB	224
6eb42155 ADB	225	/* dip_rb.c */
095181f2	226	int rb_insert(struct rb_root root, struct io iop);
6eb42155	227	struct io rb_find_sec(struct rb_root root, __u64 sec);
8b10aae0	228	void rb_foreach(struct rb_node n, struct io iop,
6eb42155 ADB	229	void (fnc)(struct io iop, struct io *this),
	230	struct list_head *head);
	231
	232	/* iostat.c */
21e47d90	233	void iostat_init(void);
4c48f14e	234	void iostat_getrq(struct io *iop);
21e47d90 ADB	235	void iostat_merge(struct io *iop);
21e47d90 ADB	236	void iostat_issue(struct io *iop);
6eb42155 ADB	237	void iostat_unissue(struct io *iop);
6eb42155 ADB	238	void iostat_complete(struct io d_iop, struct io c_iop);
21e47d90 ADB	239	void iostat_check_time(__u64 stamp);
	240	void iostat_dump_stats(__u64 stamp, int all);
	241
6eb42155	242	/* latency.c */
b2ecdd0f ADB	243	void latency_init(struct d_info *dip);
	244	void latency_clean(void);
	245	void latency_d2c(struct d_info *dip, __u64 tstamp, __u64 latency);
	246	void latency_q2c(struct d_info *dip, __u64 tstamp, __u64 latency);
	247
6eb42155	248	/* misc.c */
6eb42155	249	int in_devices(struct blk_io_trace *t);
6eb42155 ADB	250	void add_file(struct file_info *fipp, FILE fp, char *oname);
6eb42155 ADB	251	void clean_files(struct file_info **fipp);
69040794 AB	252	void add_buf(void *buf);
69040794 AB	253	void clean_bufs(void);
84a26fcd	254	char make_dev_hdr(char pad, size_t len, struct d_info *dip, int add_parens);
6eb42155 ADB	255	void dbg_ping(void);
6eb42155 ADB	256
d76c5b81 AB	257	/* mmap.c */
	258	void setup_ifile(char *fname);
	259	void cleanup_ifile(void);
	260	int next_trace(struct blk_io_trace t, void *pdu);
32ff7e3b	261	double pct_done(void);
d76c5b81	262
6eb42155 ADB	263	/* output.c */
	264	int output_avgs(FILE *ofp);
	265	int output_ranges(FILE *ofp);
6eb42155 ADB	266
	267	/* proc.c */
	268	void add_process(__u32 pid, char *name);
	269	struct p_info find_process(__u32 pid, char name);
	270	void pip_update_q(struct io *iop);
	271	void pip_foreach_out(void (f)(struct p_info , void ), void arg);
69040794 AB	272	void pip_exit(void);
	273
	274	/* bno_dump.c */
	275	void *bno_dump_init(__u32 device);
	276	void bno_dump_exit(void *param);
	277	void bno_dump_add(void handle, struct io iop);
	278	void bno_dump_clean(void);
6eb42155	279
951ea56c AB	280	/* q2d.c */
	281	void q2d_histo_add(void *priv, __u64 q2d);
	282	void *q2d_init(void);
	283	void q2d_release(void *priv);
	284	void q2d_display_header(FILE *fp);
	285	void q2d_display_dashes(FILE *fp);
	286	void q2d_display(FILE fp, void priv);
	287	int q2d_ok(void *priv);
	288	void q2d_acc(void a1, void a2);
	289
6eb42155	290	/* seek.c */
4c48f14e	291	void seeki_init(char str);
69040794	292	void seeki_exit(void *param);
6eb42155 ADB	293	void seek_clean(void);
	294	void seeki_add(void handle, struct io iop);
	295	double seeki_mean(void *handle);
	296	long long seeki_nseeks(void *handle);
	297	long long seeki_median(void *handle);
	298	int seeki_mode(void handle, struct mode mp);
	299
	300	/* trace.c */
	301	void add_trace(struct io *iop);
	302
095181f2 JA	303	/* trace_complete.c */
095181f2 JA	304	void trace_complete(struct io *c_iop);
095181f2 JA	305
095181f2 JA	306	/* trace_im.c */
c8b0b334 AB	307	void run_im(struct io im_iop, struct io d_iop, struct io *c_iop);
c8b0b334 AB	308	void run_unim(struct io im_iop, struct io d_iop, struct io *c_iop);
d76c5b81	309	int ready_im(struct io im_iop, struct io c_iop);
095181f2 JA	310	void trace_insert(struct io *i_iop);
095181f2 JA	311	void trace_merge(struct io *m_iop);
4c48f14e	312	void trace_getrq(struct io *g_iop);
354db430	313	void trace_sleeprq(struct io *s_iop);
095181f2 JA	314
095181f2 JA	315	/* trace_issue.c */
c8b0b334 AB	316	void run_issue(struct io d_iop, struct io u_iop, struct io *c_iop);
c8b0b334 AB	317	void run_unissue(struct io d_iop, struct io u_iop, struct io *c_iop);
d76c5b81	318	int ready_issue(struct io d_iop, struct io c_iop);
095181f2	319	void trace_issue(struct io *d_iop);
095181f2	320
b2822cea	321	/* trace_plug.c */
b70a6642	322	__u64 get_nio_up(struct io *u_iop);
b2822cea AB	323	void trace_plug(struct io *p_iop);
	324	void trace_unplug_io(struct io *u_iop);
	325	void trace_unplug_timer(struct io *u_iop);
	326
095181f2	327	/* trace_queue.c */
c8b0b334	328	void run_queue(struct io q_iop, struct io u_iop, struct io *c_iop);
d76c5b81	329	int ready_queue(struct io q_iop, struct io c_iop);
095181f2	330	void trace_queue(struct io *q_iop);
095181f2 JA	331
095181f2 JA	332	/* trace_remap.c */
c8b0b334	333	void run_remap(struct io a_iop, struct io u_iop, struct io *c_iop);
d76c5b81	334	int ready_remap(struct io a_iop, struct io c_iop);
095181f2	335	void trace_remap(struct io *a_iop);
095181f2 JA	336
	337	/* trace_requeue.c */
	338	void trace_requeue(struct io *r_iop);
095181f2	339
fc16a815 AB	340	/* unplug_hist.c */
	341	void *unplug_hist_init(__u32 device);
	342	void unplug_hist_exit(void *arg);
	343	void unplug_hist_add(struct io *u_iop);
	344
63eba147	345	#include "inlines.h"