[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h

#undef TRACE_SYSTEM
#define TRACE_SYSTEM writeback

#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
#define LTTNG_TRACE_WRITEBACK_H

#include "../../../probes/lttng-tracepoint-event.h"
#include <linux/backing-dev.h>
#include <linux/writeback.h>
#include <linux/version.h>

#ifndef _TRACE_WRITEBACK_DEF_
#define _TRACE_WRITEBACK_DEF_
static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
{
	struct super_block *sb = inode->i_sb;

	if (strcmp(sb->s_type->name, "bdev") == 0)
		return inode->i_mapping->backing_dev_info;

	return sb->s_bdi;
}
#endif

#define show_inode_state(state)					\
	__print_flags(state, "|",				\
		{I_DIRTY_SYNC,		"I_DIRTY_SYNC"},	\
		{I_DIRTY_DATASYNC,	"I_DIRTY_DATASYNC"},	\
		{I_DIRTY_PAGES,		"I_DIRTY_PAGES"},	\
		{I_NEW,			"I_NEW"},		\
		{I_WILL_FREE,		"I_WILL_FREE"},		\
		{I_FREEING,		"I_FREEING"},		\
		{I_CLEAR,		"I_CLEAR"},		\
		{I_SYNC,		"I_SYNC"},		\
		{I_REFERENCED,		"I_REFERENCED"}		\
	)

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#define WB_WORK_REASON							\
		{WB_REASON_BACKGROUND,		"background"},		\
		{WB_REASON_TRY_TO_FREE_PAGES,	"try_to_free_pages"},	\
		{WB_REASON_SYNC,		"sync"},		\
		{WB_REASON_PERIODIC,		"periodic"},		\
		{WB_REASON_LAPTOP_TIMER,	"laptop_timer"},	\
		{WB_REASON_FREE_MORE_MEM,	"free_more_memory"},	\
		{WB_REASON_FS_FREE_SPACE,	"fs_free_space"},	\
		{WB_REASON_FORKER_THREAD,	"forker_thread"}
#endif

LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
	TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
	TP_ARGS(bdi, work),
	TP_STRUCT__entry(
		__array(char, name, 32)
	),
	TP_fast_assign(
		tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
				default_backing_dev_info.dev), 32)
	),
	TP_printk("bdi %s",
		  __entry->name
	)
)
#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
	TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
	TP_ARGS(bdi, work))
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
#endif

LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
	TP_PROTO(long pages_written),
	TP_ARGS(pages_written),
	TP_STRUCT__entry(
		__field(long,		pages)
	),
	TP_fast_assign(
		tp_assign(pages, pages_written)
	),
	TP_printk("%ld", __entry->pages)
)

LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
	TP_PROTO(struct backing_dev_info *bdi),
	TP_ARGS(bdi),
	TP_STRUCT__entry(
		__array(char, name, 32)
	),
	TP_fast_assign(
		tp_memcpy(name, dev_name(bdi->dev), 32)
	),
	TP_printk("bdi %s",
		  __entry->name
	)
)
#undef DEFINE_WRITEBACK_EVENT
#define DEFINE_WRITEBACK_EVENT(name) \
LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
	TP_PROTO(struct backing_dev_info *bdi), \
	TP_ARGS(bdi))

#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
	TP_PROTO(struct backing_dev_info *bdi), \
	TP_ARGS(bdi))

DEFINE_WRITEBACK_EVENT(writeback_nowork)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
DEFINE_WRITEBACK_EVENT(writeback_wake_background)
#endif
DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
DEFINE_WRITEBACK_EVENT(writeback_thread_start)
DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)

LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,

	writeback_balance_dirty_written,

	TP_PROTO(struct backing_dev_info *bdi, int written),

	TP_ARGS(bdi, written),

	TP_STRUCT__entry(
		__array(char,	name, 32)
		__field(int,	written)
	),

	TP_fast_assign(
		tp_memcpy(name, dev_name(bdi->dev), 32)
		tp_assign(written, written)
	),

	TP_printk("bdi %s written %d",
		  __entry->name,
		  __entry->written
	)
)
#endif

LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
	TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
	TP_ARGS(wbc, bdi),
	TP_STRUCT__entry(
		__array(char, name, 32)
		__field(long, nr_to_write)
		__field(long, pages_skipped)
		__field(int, sync_mode)
		__field(int, for_kupdate)
		__field(int, for_background)
		__field(int, for_reclaim)
		__field(int, range_cyclic)
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
		__field(int, more_io)
		__field(unsigned long, older_than_this)
#endif
		__field(long, range_start)
		__field(long, range_end)
	),

	TP_fast_assign(
		tp_memcpy(name, dev_name(bdi->dev), 32)
		tp_assign(nr_to_write, wbc->nr_to_write)
		tp_assign(pages_skipped, wbc->pages_skipped)
		tp_assign(sync_mode, wbc->sync_mode)
		tp_assign(for_kupdate, wbc->for_kupdate)
		tp_assign(for_background, wbc->for_background)
		tp_assign(for_reclaim, wbc->for_reclaim)
		tp_assign(range_cyclic, wbc->range_cyclic)
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
		tp_assign(more_io, wbc->more_io)
		tp_assign(older_than_this, wbc->older_than_this ?
						*wbc->older_than_this : 0)
#endif
		tp_assign(range_start, (long)wbc->range_start)
		tp_assign(range_end, (long)wbc->range_end)
	),

	TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
		"bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
#else
		"bgrd=%d reclm=%d cyclic=%d "
#endif
		"start=0x%lx end=0x%lx",
		__entry->name,
		__entry->nr_to_write,
		__entry->pages_skipped,
		__entry->sync_mode,
		__entry->for_kupdate,
		__entry->for_background,
		__entry->for_reclaim,
		__entry->range_cyclic,
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
		__entry->more_io,
		__entry->older_than_this,
#endif
		__entry->range_start,
		__entry->range_end)
)

#undef DEFINE_WBC_EVENT
#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
	TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
	TP_ARGS(wbc, bdi))
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
#endif
LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
	TP_PROTO(struct bdi_writeback *wb,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
		 struct wb_writeback_work *work,
#else
		 unsigned long *older_than_this,
#endif
		 int moved),
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	TP_ARGS(wb, work, moved),
#else
	TP_ARGS(wb, older_than_this, moved),
#endif
	TP_STRUCT__entry(
		__array(char,		name, 32)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#else
		__field(unsigned long,	older)
		__field(long,		age)
#endif
		__field(int,		moved)
	),
	TP_fast_assign(
		tp_memcpy(name, dev_name(wb->bdi->dev), 32)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#else
		tp_assign(older, older_than_this ?  *older_than_this : 0)
		tp_assign(age, older_than_this ?
			(jiffies - *older_than_this) * 1000 / HZ : -1)
#endif
		tp_assign(moved, moved)
	),
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	TP_printk("bdi %s: enqueue=%d",
		__entry->name,
		__entry->moved,
	)
#else
	TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
		__entry->name,
		__entry->older,	/* older_than_this in jiffies */
		__entry->age,	/* older_than_this in relative milliseconds */
		__entry->moved
	)
#endif
)

LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,

	writeback_global_dirty_state,

	TP_PROTO(unsigned long background_thresh,
		 unsigned long dirty_thresh
	),

	TP_ARGS(background_thresh,
		dirty_thresh
	),

	TP_STRUCT__entry(
		__field(unsigned long,	nr_dirty)
		__field(unsigned long,	nr_writeback)
		__field(unsigned long,	nr_unstable)
		__field(unsigned long,	background_thresh)
		__field(unsigned long,	dirty_thresh)
		__field(unsigned long,	dirty_limit)
		__field(unsigned long,	nr_dirtied)
		__field(unsigned long,	nr_written)
	),

	TP_fast_assign(
		tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
		tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
		tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
		tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
		tp_assign(nr_written, global_page_state(NR_WRITTEN))
		tp_assign(background_thresh, background_thresh)
		tp_assign(dirty_thresh, dirty_thresh)
		tp_assign(dirty_limit, global_dirty_limit)
	),

	TP_printk("dirty=%lu writeback=%lu unstable=%lu "
		  "bg_thresh=%lu thresh=%lu limit=%lu "
		  "dirtied=%lu written=%lu",
		  __entry->nr_dirty,
		  __entry->nr_writeback,
		  __entry->nr_unstable,
		  __entry->background_thresh,
		  __entry->dirty_thresh,
		  __entry->dirty_limit,
		  __entry->nr_dirtied,
		  __entry->nr_written
	)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))

#define KBps(x)			((x) << (PAGE_SHIFT - 10))

LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,

	writeback_bdi_dirty_ratelimit,

	TP_PROTO(struct backing_dev_info *bdi,
		 unsigned long dirty_rate,
		 unsigned long task_ratelimit),

	TP_ARGS(bdi, dirty_rate, task_ratelimit),

	TP_STRUCT__entry(
		__array(char,		bdi, 32)
		__field(unsigned long,	write_bw)
		__field(unsigned long,	avg_write_bw)
		__field(unsigned long,	dirty_rate)
		__field(unsigned long,	dirty_ratelimit)
		__field(unsigned long,	task_ratelimit)
		__field(unsigned long,	balanced_dirty_ratelimit)
	),

	TP_fast_assign(
		tp_memcpy(bdi, dev_name(bdi->dev), 32)
		tp_assign(write_bw, KBps(bdi->write_bandwidth))
		tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
		tp_assign(dirty_rate, KBps(dirty_rate))
		tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
		tp_assign(task_ratelimit, KBps(task_ratelimit))
		tp_assign(balanced_dirty_ratelimit,
					KBps(bdi->balanced_dirty_ratelimit))
	),

	TP_printk("bdi %s: "
		  "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
		  "dirty_ratelimit=%lu task_ratelimit=%lu "
		  "balanced_dirty_ratelimit=%lu",
		  __entry->bdi,
		  __entry->write_bw,		/* write bandwidth */
		  __entry->avg_write_bw,	/* avg write bandwidth */
		  __entry->dirty_rate,		/* bdi dirty rate */
		  __entry->dirty_ratelimit,	/* base ratelimit */
		  __entry->task_ratelimit, /* ratelimit with position control */
		  __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
	)
)

LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,

	writeback_balance_dirty_pages,

	TP_PROTO(struct backing_dev_info *bdi,
		 unsigned long thresh,
		 unsigned long bg_thresh,
		 unsigned long dirty,
		 unsigned long bdi_thresh,
		 unsigned long bdi_dirty,
		 unsigned long dirty_ratelimit,
		 unsigned long task_ratelimit,
		 unsigned long dirtied,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
		 unsigned long period,
#endif
		 long pause,
		 unsigned long start_time),

	TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
		dirty_ratelimit, task_ratelimit,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
		dirtied, period, pause, start_time),
#else
		dirtied, pause, start_time),
#endif
	TP_STRUCT__entry(
		__array(	 char,	bdi, 32)
		__field(unsigned long,	limit)
		__field(unsigned long,	setpoint)
		__field(unsigned long,	dirty)
		__field(unsigned long,	bdi_setpoint)
		__field(unsigned long,	bdi_dirty)
		__field(unsigned long,	dirty_ratelimit)
		__field(unsigned long,	task_ratelimit)
		__field(unsigned int,	dirtied)
		__field(unsigned int,	dirtied_pause)
		__field(unsigned long,	paused)
		__field(	 long,	pause)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
		__field(unsigned long,	period)
		__field(	 long,	think)
#endif
	),

	TP_fast_assign(
		tp_memcpy(bdi, dev_name(bdi->dev), 32)
		tp_assign(limit, global_dirty_limit)
		tp_assign(setpoint,
			(global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
		tp_assign(dirty, dirty)
		tp_assign(bdi_setpoint,
			((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
			bdi_thresh / (thresh + 1))
		tp_assign(bdi_dirty, bdi_dirty)
		tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
		tp_assign(task_ratelimit, KBps(task_ratelimit))
		tp_assign(dirtied, dirtied)
		tp_assign(dirtied_pause, current->nr_dirtied_pause)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
		tp_assign(think, current->dirty_paused_when == 0 ? 0 :
			(long)(jiffies - current->dirty_paused_when) * 1000/HZ)
		tp_assign(period, period * 1000 / HZ)
#endif
		tp_assign(pause, pause * 1000 / HZ)
		tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
	),


#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	TP_printk("bdi %s: "
		  "limit=%lu setpoint=%lu dirty=%lu "
		  "bdi_setpoint=%lu bdi_dirty=%lu "
		  "dirty_ratelimit=%lu task_ratelimit=%lu "
		  "dirtied=%u dirtied_pause=%u "
		  "paused=%lu pause=%ld period=%lu think=%ld",
		  __entry->bdi,
		  __entry->limit,
		  __entry->setpoint,
		  __entry->dirty,
		  __entry->bdi_setpoint,
		  __entry->bdi_dirty,
		  __entry->dirty_ratelimit,
		  __entry->task_ratelimit,
		  __entry->dirtied,
		  __entry->dirtied_pause,
		  __entry->paused,	/* ms */
		  __entry->pause,	/* ms */
		  __entry->period,	/* ms */
		  __entry->think	/* ms */
	  )
#else
	TP_printk("bdi %s: "
		  "limit=%lu setpoint=%lu dirty=%lu "
		  "bdi_setpoint=%lu bdi_dirty=%lu "
		  "dirty_ratelimit=%lu task_ratelimit=%lu "
		  "dirtied=%u dirtied_pause=%u "
		  "paused=%lu pause=%ld",
		  __entry->bdi,
		  __entry->limit,
		  __entry->setpoint,
		  __entry->dirty,
		  __entry->bdi_setpoint,
		  __entry->bdi_dirty,
		  __entry->dirty_ratelimit,
		  __entry->task_ratelimit,
		  __entry->dirtied,
		  __entry->dirtied_pause,
		  __entry->paused,	/* ms */
		  __entry->pause	/* ms */
	  )
#endif
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,

	TP_PROTO(struct inode *inode),
	TP_ARGS(inode),

	TP_STRUCT__entry(
		__array(char, name, 32)
		__field(unsigned long, ino)
		__field(unsigned long, state)
		__field(unsigned long, dirtied_when)
	),

	TP_fast_assign(
		tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
		tp_assign(ino, inode->i_ino)
		tp_assign(state, inode->i_state)
		tp_assign(dirtied_when, inode->dirtied_when)
	),

	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
		  __entry->name,
		  __entry->ino,
		  show_inode_state(__entry->state),
		  __entry->dirtied_when,
		  (jiffies - __entry->dirtied_when) / HZ
	)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,

	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),

	TP_ARGS(usec_timeout, usec_delayed),

	TP_STRUCT__entry(
		__field(	unsigned int,	usec_timeout	)
		__field(	unsigned int,	usec_delayed	)
	),

	TP_fast_assign(
		tp_assign(usec_timeout, usec_timeout)
		tp_assign(usec_delayed, usec_delayed)
	),

	TP_printk("usec_timeout=%u usec_delayed=%u",
			__entry->usec_timeout,
			__entry->usec_delayed)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,

	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),

	TP_ARGS(usec_timeout, usec_delayed)
)

LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,

	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),

	TP_ARGS(usec_timeout, usec_delayed)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,

	TP_PROTO(struct inode *inode,
		 struct writeback_control *wbc,
		 unsigned long nr_to_write
	),

	TP_ARGS(inode, wbc, nr_to_write),

	TP_STRUCT__entry(
		__array(char, name, 32)
		__field(unsigned long, ino)
		__field(unsigned long, state)
		__field(unsigned long, dirtied_when)
		__field(unsigned long, writeback_index)
		__field(long, nr_to_write)
		__field(unsigned long, wrote)
	),

	TP_fast_assign(
		tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
		tp_assign(ino, inode->i_ino)
		tp_assign(state, inode->i_state)
		tp_assign(dirtied_when, inode->dirtied_when)
		tp_assign(writeback_index, inode->i_mapping->writeback_index)
		tp_assign(nr_to_write, nr_to_write)
		tp_assign(wrote, nr_to_write - wbc->nr_to_write)
	),

	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
		  "index=%lu to_write=%ld wrote=%lu",
		  __entry->name,
		  __entry->ino,
		  show_inode_state(__entry->state),
		  __entry->dirtied_when,
		  (jiffies - __entry->dirtied_when) / HZ,
		  __entry->writeback_index,
		  __entry->nr_to_write,
		  __entry->wrote
	)
)

#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
	TP_PROTO(struct inode *inode,
		struct writeback_control *wbc,
		unsigned long nr_to_write),
	TP_ARGS(inode, wbc, nr_to_write)
)
#endif

LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
	TP_PROTO(struct inode *inode,
		 struct writeback_control *wbc,
		 unsigned long nr_to_write),
	TP_ARGS(inode, wbc, nr_to_write)
)
#endif

#endif /* LTTNG_TRACE_WRITEBACK_H */

/* This part must be outside protection */
#include "../../../probes/define_trace.h"
Commit	Line	Data
b87700e3 AG	1	#undef TRACE_SYSTEM
	2	#define TRACE_SYSTEM writeback
	3
3bc29f0a MD	4	#if !defined(LTTNG_TRACE_WRITEBACK_H) \|\| defined(TRACE_HEADER_MULTI_READ)
3bc29f0a MD	5	#define LTTNG_TRACE_WRITEBACK_H
b87700e3	6
3bc29f0a	7	#include "../../../probes/lttng-tracepoint-event.h"
b87700e3 AG	8	#include <linux/backing-dev.h>
	9	#include <linux/writeback.h>
	10	#include <linux/version.h>
	11
	12	#ifndef _TRACE_WRITEBACK_DEF_
	13	#define _TRACE_WRITEBACK_DEF_
b87700e3 AG	14	static inline struct backing_dev_info inode_to_bdi(struct inode inode)
	15	{
	16	struct super_block *sb = inode->i_sb;
	17
	18	if (strcmp(sb->s_type->name, "bdev") == 0)
	19	return inode->i_mapping->backing_dev_info;
	20
	21	return sb->s_bdi;
	22	}
	23	#endif
	24
	25	#define show_inode_state(state) \
	26	__print_flags(state, "\|", \
	27	{I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
	28	{I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
	29	{I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
	30	{I_NEW, "I_NEW"}, \
	31	{I_WILL_FREE, "I_WILL_FREE"}, \
	32	{I_FREEING, "I_FREEING"}, \
	33	{I_CLEAR, "I_CLEAR"}, \
	34	{I_SYNC, "I_SYNC"}, \
	35	{I_REFERENCED, "I_REFERENCED"} \
	36	)
	37
	38	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	39	#define WB_WORK_REASON \
	40	{WB_REASON_BACKGROUND, "background"}, \
	41	{WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \
	42	{WB_REASON_SYNC, "sync"}, \
	43	{WB_REASON_PERIODIC, "periodic"}, \
	44	{WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \
	45	{WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \
	46	{WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \
	47	{WB_REASON_FORKER_THREAD, "forker_thread"}
	48	#endif
	49
3bc29f0a	50	LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
b87700e3 AG	51	TP_PROTO(struct backing_dev_info bdi, struct wb_writeback_work work),
	52	TP_ARGS(bdi, work),
	53	TP_STRUCT__entry(
	54	__array(char, name, 32)
b87700e3 AG	55	),
	56	TP_fast_assign(
	57	tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
	58	default_backing_dev_info.dev), 32)
b87700e3	59	),
88dc2c97 MD	60	TP_printk("bdi %s",
88dc2c97 MD	61	__entry->name
b87700e3	62	)
b87700e3	63	)
3bc29f0a MD	64	#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
3bc29f0a MD	65	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
b87700e3 AG	66	TP_PROTO(struct backing_dev_info bdi, struct wb_writeback_work work), \
b87700e3 AG	67	TP_ARGS(bdi, work))
3bc29f0a MD	68	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
	69	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
	70	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
b87700e3	71	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a MD	72	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
	73	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
	74	LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
b87700e3 AG	75	#endif
b87700e3 AG	76
3bc29f0a	77	LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
b87700e3 AG	78	TP_PROTO(long pages_written),
	79	TP_ARGS(pages_written),
	80	TP_STRUCT__entry(
	81	__field(long, pages)
	82	),
	83	TP_fast_assign(
	84	tp_assign(pages, pages_written)
	85	),
	86	TP_printk("%ld", __entry->pages)
	87	)
	88
3bc29f0a	89	LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
b87700e3 AG	90	TP_PROTO(struct backing_dev_info *bdi),
	91	TP_ARGS(bdi),
	92	TP_STRUCT__entry(
	93	__array(char, name, 32)
	94	),
	95	TP_fast_assign(
	96	tp_memcpy(name, dev_name(bdi->dev), 32)
	97	),
	98	TP_printk("bdi %s",
	99	__entry->name
	100	)
	101	)
59fecd6c	102	#undef DEFINE_WRITEBACK_EVENT
b87700e3	103	#define DEFINE_WRITEBACK_EVENT(name) \
3bc29f0a	104	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
b87700e3 AG	105	TP_PROTO(struct backing_dev_info *bdi), \
	106	TP_ARGS(bdi))
	107
9cf29d3e	108	#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
3bc29f0a	109	LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
9cf29d3e MD	110	TP_PROTO(struct backing_dev_info *bdi), \
	111	TP_ARGS(bdi))
	112
b87700e3 AG	113	DEFINE_WRITEBACK_EVENT(writeback_nowork)
	114	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
	115	DEFINE_WRITEBACK_EVENT(writeback_wake_background)
	116	#endif
	117	DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
	118	DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
	119	DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
	120	DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
	121	DEFINE_WRITEBACK_EVENT(writeback_thread_start)
	122	DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
	123	#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e MD	124	DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
	125	DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
	126
3bc29f0a	127	LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
b87700e3	128
9cf29d3e	129	writeback_balance_dirty_written,
b87700e3 AG	130
	131	TP_PROTO(struct backing_dev_info *bdi, int written),
	132
	133	TP_ARGS(bdi, written),
	134
	135	TP_STRUCT__entry(
	136	__array(char, name, 32)
	137	__field(int, written)
	138	),
	139
	140	TP_fast_assign(
	141	tp_memcpy(name, dev_name(bdi->dev), 32)
	142	tp_assign(written, written)
	143	),
	144
	145	TP_printk("bdi %s written %d",
	146	__entry->name,
	147	__entry->written
	148	)
	149	)
	150	#endif
	151
3bc29f0a	152	LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
b87700e3 AG	153	TP_PROTO(struct writeback_control wbc, struct backing_dev_info bdi),
	154	TP_ARGS(wbc, bdi),
	155	TP_STRUCT__entry(
	156	__array(char, name, 32)
	157	__field(long, nr_to_write)
	158	__field(long, pages_skipped)
	159	__field(int, sync_mode)
	160	__field(int, for_kupdate)
	161	__field(int, for_background)
	162	__field(int, for_reclaim)
	163	__field(int, range_cyclic)
	164	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
	165	__field(int, more_io)
	166	__field(unsigned long, older_than_this)
	167	#endif
	168	__field(long, range_start)
	169	__field(long, range_end)
	170	),
	171
	172	TP_fast_assign(
	173	tp_memcpy(name, dev_name(bdi->dev), 32)
	174	tp_assign(nr_to_write, wbc->nr_to_write)
	175	tp_assign(pages_skipped, wbc->pages_skipped)
	176	tp_assign(sync_mode, wbc->sync_mode)
	177	tp_assign(for_kupdate, wbc->for_kupdate)
	178	tp_assign(for_background, wbc->for_background)
	179	tp_assign(for_reclaim, wbc->for_reclaim)
	180	tp_assign(range_cyclic, wbc->range_cyclic)
	181	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
	182	tp_assign(more_io, wbc->more_io)
	183	tp_assign(older_than_this, wbc->older_than_this ?
	184	*wbc->older_than_this : 0)
	185	#endif
	186	tp_assign(range_start, (long)wbc->range_start)
	187	tp_assign(range_end, (long)wbc->range_end)
	188	),
	189
	190	TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
	191	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
	192	"bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
	193	#else
	194	"bgrd=%d reclm=%d cyclic=%d "
	195	#endif
	196	"start=0x%lx end=0x%lx",
	197	__entry->name,
	198	__entry->nr_to_write,
	199	__entry->pages_skipped,
	200	__entry->sync_mode,
	201	__entry->for_kupdate,
	202	__entry->for_background,
	203	__entry->for_reclaim,
	204	__entry->range_cyclic,
	205	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
	206	__entry->more_io,
	207	__entry->older_than_this,
	208	#endif
	209	__entry->range_start,
	210	__entry->range_end)
	211	)
	212
9cf29d3e	213	#undef DEFINE_WBC_EVENT
3bc29f0a MD	214	#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
3bc29f0a MD	215	LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
b87700e3 AG	216	TP_PROTO(struct writeback_control wbc, struct backing_dev_info bdi), \
	217	TP_ARGS(wbc, bdi))
	218	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
3bc29f0a MD	219	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
	220	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
	221	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
	222	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
	223	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
	224	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3	225	#endif
3bc29f0a	226	LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
b87700e3 AG	227
b87700e3 AG	228	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a	229	LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
b87700e3 AG	230	TP_PROTO(struct bdi_writeback *wb,
	231	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	232	struct wb_writeback_work *work,
	233	#else
	234	unsigned long *older_than_this,
	235	#endif
	236	int moved),
	237	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	238	TP_ARGS(wb, work, moved),
	239	#else
	240	TP_ARGS(wb, older_than_this, moved),
	241	#endif
	242	TP_STRUCT__entry(
	243	__array(char, name, 32)
88dc2c97 MD	244	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
88dc2c97 MD	245	#else
b87700e3 AG	246	__field(unsigned long, older)
b87700e3 AG	247	__field(long, age)
b87700e3	248	#endif
88dc2c97	249	__field(int, moved)
b87700e3 AG	250	),
	251	TP_fast_assign(
	252	tp_memcpy(name, dev_name(wb->bdi->dev), 32)
	253	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
b87700e3 AG	254	#else
	255	tp_assign(older, older_than_this ? *older_than_this : 0)
	256	tp_assign(age, older_than_this ?
	257	(jiffies - older_than_this) 1000 / HZ : -1)
	258	#endif
	259	tp_assign(moved, moved)
b87700e3 AG	260	),
b87700e3 AG	261	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
88dc2c97	262	TP_printk("bdi %s: enqueue=%d",
b87700e3	263	__entry->name,
b87700e3	264	__entry->moved,
b87700e3 AG	265	)
	266	#else
	267	TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
	268	__entry->name,
	269	__entry->older, /* older_than_this in jiffies */
	270	__entry->age, /* older_than_this in relative milliseconds */
	271	__entry->moved
	272	)
	273	#endif
	274	)
	275
3bc29f0a	276	LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
9cf29d3e MD	277
9cf29d3e MD	278	writeback_global_dirty_state,
b87700e3 AG	279
	280	TP_PROTO(unsigned long background_thresh,
	281	unsigned long dirty_thresh
	282	),
	283
	284	TP_ARGS(background_thresh,
	285	dirty_thresh
	286	),
	287
	288	TP_STRUCT__entry(
	289	__field(unsigned long, nr_dirty)
	290	__field(unsigned long, nr_writeback)
	291	__field(unsigned long, nr_unstable)
	292	__field(unsigned long, background_thresh)
	293	__field(unsigned long, dirty_thresh)
	294	__field(unsigned long, dirty_limit)
	295	__field(unsigned long, nr_dirtied)
	296	__field(unsigned long, nr_written)
	297	),
	298
	299	TP_fast_assign(
	300	tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
	301	tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
	302	tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
	303	tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
	304	tp_assign(nr_written, global_page_state(NR_WRITTEN))
	305	tp_assign(background_thresh, background_thresh)
	306	tp_assign(dirty_thresh, dirty_thresh)
	307	tp_assign(dirty_limit, global_dirty_limit)
	308	),
	309
	310	TP_printk("dirty=%lu writeback=%lu unstable=%lu "
	311	"bg_thresh=%lu thresh=%lu limit=%lu "
	312	"dirtied=%lu written=%lu",
	313	__entry->nr_dirty,
	314	__entry->nr_writeback,
	315	__entry->nr_unstable,
	316	__entry->background_thresh,
	317	__entry->dirty_thresh,
	318	__entry->dirty_limit,
	319	__entry->nr_dirtied,
	320	__entry->nr_written
	321	)
	322	)
	323	#endif
	324
	325	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
	326
	327	#define KBps(x) ((x) << (PAGE_SHIFT - 10))
	328
3bc29f0a	329	LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
9cf29d3e MD	330
9cf29d3e MD	331	writeback_bdi_dirty_ratelimit,
b87700e3 AG	332
	333	TP_PROTO(struct backing_dev_info *bdi,
	334	unsigned long dirty_rate,
	335	unsigned long task_ratelimit),
	336
	337	TP_ARGS(bdi, dirty_rate, task_ratelimit),
	338
	339	TP_STRUCT__entry(
	340	__array(char, bdi, 32)
	341	__field(unsigned long, write_bw)
	342	__field(unsigned long, avg_write_bw)
	343	__field(unsigned long, dirty_rate)
	344	__field(unsigned long, dirty_ratelimit)
	345	__field(unsigned long, task_ratelimit)
	346	__field(unsigned long, balanced_dirty_ratelimit)
	347	),
	348
	349	TP_fast_assign(
	350	tp_memcpy(bdi, dev_name(bdi->dev), 32)
	351	tp_assign(write_bw, KBps(bdi->write_bandwidth))
	352	tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
	353	tp_assign(dirty_rate, KBps(dirty_rate))
	354	tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
	355	tp_assign(task_ratelimit, KBps(task_ratelimit))
	356	tp_assign(balanced_dirty_ratelimit,
	357	KBps(bdi->balanced_dirty_ratelimit))
	358	),
	359
	360	TP_printk("bdi %s: "
	361	"write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
	362	"dirty_ratelimit=%lu task_ratelimit=%lu "
	363	"balanced_dirty_ratelimit=%lu",
	364	__entry->bdi,
	365	__entry->write_bw, /* write bandwidth */
	366	__entry->avg_write_bw, /* avg write bandwidth */
	367	__entry->dirty_rate, /* bdi dirty rate */
	368	__entry->dirty_ratelimit, /* base ratelimit */
	369	__entry->task_ratelimit, /* ratelimit with position control */
	370	__entry->balanced_dirty_ratelimit /* the balanced ratelimit */
	371	)
	372	)
	373
3bc29f0a	374	LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
9cf29d3e MD	375
9cf29d3e MD	376	writeback_balance_dirty_pages,
b87700e3 AG	377
	378	TP_PROTO(struct backing_dev_info *bdi,
	379	unsigned long thresh,
	380	unsigned long bg_thresh,
	381	unsigned long dirty,
	382	unsigned long bdi_thresh,
	383	unsigned long bdi_dirty,
	384	unsigned long dirty_ratelimit,
	385	unsigned long task_ratelimit,
	386	unsigned long dirtied,
	387	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	388	unsigned long period,
	389	#endif
	390	long pause,
	391	unsigned long start_time),
	392
	393	TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
	394	dirty_ratelimit, task_ratelimit,
	395	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	396	dirtied, period, pause, start_time),
	397	#else
	398	dirtied, pause, start_time),
	399	#endif
	400	TP_STRUCT__entry(
	401	__array( char, bdi, 32)
	402	__field(unsigned long, limit)
	403	__field(unsigned long, setpoint)
	404	__field(unsigned long, dirty)
	405	__field(unsigned long, bdi_setpoint)
	406	__field(unsigned long, bdi_dirty)
	407	__field(unsigned long, dirty_ratelimit)
	408	__field(unsigned long, task_ratelimit)
	409	__field(unsigned int, dirtied)
	410	__field(unsigned int, dirtied_pause)
	411	__field(unsigned long, paused)
	412	__field( long, pause)
	413	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	414	__field(unsigned long, period)
	415	__field( long, think)
	416	#endif
	417	),
	418
	419	TP_fast_assign(
	420	tp_memcpy(bdi, dev_name(bdi->dev), 32)
	421	tp_assign(limit, global_dirty_limit)
	422	tp_assign(setpoint,
	423	(global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
	424	tp_assign(dirty, dirty)
	425	tp_assign(bdi_setpoint,
	426	((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
	427	bdi_thresh / (thresh + 1))
	428	tp_assign(bdi_dirty, bdi_dirty)
	429	tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
	430	tp_assign(task_ratelimit, KBps(task_ratelimit))
	431	tp_assign(dirtied, dirtied)
	432	tp_assign(dirtied_pause, current->nr_dirtied_pause)
	433	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	434	tp_assign(think, current->dirty_paused_when == 0 ? 0 :
	435	(long)(jiffies - current->dirty_paused_when) * 1000/HZ)
	436	tp_assign(period, period * 1000 / HZ)
	437	#endif
	438	tp_assign(pause, pause * 1000 / HZ)
	439	tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
	440	),
441
442
443	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
444	TP_printk("bdi %s: "
445	"limit=%lu setpoint=%lu dirty=%lu "
446	"bdi_setpoint=%lu bdi_dirty=%lu "
447	"dirty_ratelimit=%lu task_ratelimit=%lu "
448	"dirtied=%u dirtied_pause=%u "
449	"paused=%lu pause=%ld period=%lu think=%ld",
450	__entry->bdi,
451	__entry->limit,
452	__entry->setpoint,
453	__entry->dirty,
454	__entry->bdi_setpoint,
455	__entry->bdi_dirty,
456	__entry->dirty_ratelimit,
457	__entry->task_ratelimit,
458	__entry->dirtied,
459	__entry->dirtied_pause,
460	__entry->paused, /* ms */
461	__entry->pause, /* ms */
462	__entry->period, /* ms */
463	__entry->think /* ms */
464	)
465	#else
466	TP_printk("bdi %s: "
467	"limit=%lu setpoint=%lu dirty=%lu "
468	"bdi_setpoint=%lu bdi_dirty=%lu "
469	"dirty_ratelimit=%lu task_ratelimit=%lu "
470	"dirtied=%u dirtied_pause=%u "
471	"paused=%lu pause=%ld",
472	__entry->bdi,
473	__entry->limit,
474	__entry->setpoint,
475	__entry->dirty,
476	__entry->bdi_setpoint,
477	__entry->bdi_dirty,
478	__entry->dirty_ratelimit,
479	__entry->task_ratelimit,
480	__entry->dirtied,
481	__entry->dirtied_pause,
482	__entry->paused, /* ms */
483	__entry->pause /* ms */
484	)
485	#endif
486	)
487	#endif
488
489	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
3bc29f0a	490	LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
b87700e3 AG	491
	492	TP_PROTO(struct inode *inode),
	493	TP_ARGS(inode),
	494
	495	TP_STRUCT__entry(
	496	__array(char, name, 32)
	497	__field(unsigned long, ino)
	498	__field(unsigned long, state)
	499	__field(unsigned long, dirtied_when)
	500	),
	501
	502	TP_fast_assign(
	503	tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
	504	tp_assign(ino, inode->i_ino)
	505	tp_assign(state, inode->i_state)
	506	tp_assign(dirtied_when, inode->dirtied_when)
	507	),
	508
	509	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
	510	__entry->name,
	511	__entry->ino,
	512	show_inode_state(__entry->state),
	513	__entry->dirtied_when,
	514	(jiffies - __entry->dirtied_when) / HZ
	515	)
	516	)
	517	#endif
	518
	519	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
3bc29f0a	520	LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
b87700e3 AG	521
	522	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
	523
	524	TP_ARGS(usec_timeout, usec_delayed),
	525
	526	TP_STRUCT__entry(
	527	__field( unsigned int, usec_timeout )
	528	__field( unsigned int, usec_delayed )
	529	),
	530
	531	TP_fast_assign(
	532	tp_assign(usec_timeout, usec_timeout)
	533	tp_assign(usec_delayed, usec_delayed)
	534	),
	535
	536	TP_printk("usec_timeout=%u usec_delayed=%u",
	537	__entry->usec_timeout,
	538	__entry->usec_delayed)
	539	)
	540
3bc29f0a	541	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
b87700e3 AG	542
	543	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
	544
	545	TP_ARGS(usec_timeout, usec_delayed)
	546	)
	547
3bc29f0a	548	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
b87700e3 AG	549
	550	TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
	551
	552	TP_ARGS(usec_timeout, usec_delayed)
	553	)
	554	#endif
	555
	556	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a	557	LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
b87700e3 AG	558
	559	TP_PROTO(struct inode *inode,
	560	struct writeback_control *wbc,
	561	unsigned long nr_to_write
	562	),
	563
	564	TP_ARGS(inode, wbc, nr_to_write),
	565
	566	TP_STRUCT__entry(
	567	__array(char, name, 32)
	568	__field(unsigned long, ino)
	569	__field(unsigned long, state)
	570	__field(unsigned long, dirtied_when)
	571	__field(unsigned long, writeback_index)
	572	__field(long, nr_to_write)
	573	__field(unsigned long, wrote)
	574	),
	575
	576	TP_fast_assign(
	577	tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
	578	tp_assign(ino, inode->i_ino)
	579	tp_assign(state, inode->i_state)
	580	tp_assign(dirtied_when, inode->dirtied_when)
	581	tp_assign(writeback_index, inode->i_mapping->writeback_index)
	582	tp_assign(nr_to_write, nr_to_write)
	583	tp_assign(wrote, nr_to_write - wbc->nr_to_write)
	584	),
	585
	586	TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
	587	"index=%lu to_write=%ld wrote=%lu",
	588	__entry->name,
	589	__entry->ino,
	590	show_inode_state(__entry->state),
	591	__entry->dirtied_when,
	592	(jiffies - __entry->dirtied_when) / HZ,
	593	__entry->writeback_index,
	594	__entry->nr_to_write,
	595	__entry->wrote
	596	)
	597	)
	598
	599	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
3bc29f0a	600	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
b87700e3 AG	601	TP_PROTO(struct inode *inode,
	602	struct writeback_control *wbc,
	603	unsigned long nr_to_write),
	604	TP_ARGS(inode, wbc, nr_to_write)
	605	)
	606	#endif
	607
3bc29f0a	608	LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
b87700e3 AG	609	TP_PROTO(struct inode *inode,
	610	struct writeback_control *wbc,
	611	unsigned long nr_to_write),
	612	TP_ARGS(inode, wbc, nr_to_write)
	613	)
	614	#endif
	615
3bc29f0a	616	#endif /* LTTNG_TRACE_WRITEBACK_H */
b87700e3 AG	617
	618	/* This part must be outside protection */
	619	#include "../../../probes/define_trace.h"