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Diffstat (limited to 'include/trace/events/writeback.h')
-rw-r--r--include/trace/events/writeback.h161
1 files changed, 151 insertions, 10 deletions
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 1f48f148f86..cee02d65ab3 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -4,8 +4,8 @@
#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_WRITEBACK_H
+#include <linux/tracepoint.h>
#include <linux/backing-dev.h>
-#include <linux/device.h>
#include <linux/writeback.h>
#define show_inode_state(state) \
@@ -33,6 +33,115 @@
struct wb_writeback_work;
+TRACE_EVENT(writeback_dirty_page,
+
+ TP_PROTO(struct page *page, struct address_space *mapping),
+
+ TP_ARGS(page, mapping),
+
+ TP_STRUCT__entry (
+ __array(char, name, 32)
+ __field(unsigned long, ino)
+ __field(pgoff_t, index)
+ ),
+
+ TP_fast_assign(
+ strncpy(__entry->name,
+ mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32);
+ __entry->ino = mapping ? mapping->host->i_ino : 0;
+ __entry->index = page->index;
+ ),
+
+ TP_printk("bdi %s: ino=%lu index=%lu",
+ __entry->name,
+ __entry->ino,
+ __entry->index
+ )
+);
+
+DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
+
+ TP_PROTO(struct inode *inode, int flags),
+
+ TP_ARGS(inode, flags),
+
+ TP_STRUCT__entry (
+ __array(char, name, 32)
+ __field(unsigned long, ino)
+ __field(unsigned long, flags)
+ ),
+
+ TP_fast_assign(
+ struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
+
+ /* may be called for files on pseudo FSes w/ unregistered bdi */
+ strncpy(__entry->name,
+ bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32);
+ __entry->ino = inode->i_ino;
+ __entry->flags = flags;
+ ),
+
+ TP_printk("bdi %s: ino=%lu flags=%s",
+ __entry->name,
+ __entry->ino,
+ show_inode_state(__entry->flags)
+ )
+);
+
+DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
+
+ TP_PROTO(struct inode *inode, int flags),
+
+ TP_ARGS(inode, flags)
+);
+
+DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
+
+ TP_PROTO(struct inode *inode, int flags),
+
+ TP_ARGS(inode, flags)
+);
+
+DECLARE_EVENT_CLASS(writeback_write_inode_template,
+
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc),
+
+ TP_ARGS(inode, wbc),
+
+ TP_STRUCT__entry (
+ __array(char, name, 32)
+ __field(unsigned long, ino)
+ __field(int, sync_mode)
+ ),
+
+ TP_fast_assign(
+ strncpy(__entry->name,
+ dev_name(inode->i_mapping->backing_dev_info->dev), 32);
+ __entry->ino = inode->i_ino;
+ __entry->sync_mode = wbc->sync_mode;
+ ),
+
+ TP_printk("bdi %s: ino=%lu sync_mode=%d",
+ __entry->name,
+ __entry->ino,
+ __entry->sync_mode
+ )
+);
+
+DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
+
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc),
+
+ TP_ARGS(inode, wbc)
+);
+
+DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
+
+ TP_PROTO(struct inode *inode, struct writeback_control *wbc),
+
+ TP_ARGS(inode, wbc)
+);
+
DECLARE_EVENT_CLASS(writeback_work_class,
TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
TP_ARGS(bdi, work),
@@ -75,7 +184,6 @@ DECLARE_EVENT_CLASS(writeback_work_class,
DEFINE_EVENT(writeback_work_class, name, \
TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
TP_ARGS(bdi, work))
-DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread);
DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
@@ -114,12 +222,8 @@ DEFINE_EVENT(writeback_class, name, \
DEFINE_WRITEBACK_EVENT(writeback_nowork);
DEFINE_WRITEBACK_EVENT(writeback_wake_background);
-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);
DECLARE_EVENT_CLASS(wbc_class,
TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
@@ -303,12 +407,13 @@ TRACE_EVENT(balance_dirty_pages,
unsigned long dirty_ratelimit,
unsigned long task_ratelimit,
unsigned long dirtied,
+ unsigned long period,
long pause,
unsigned long start_time),
TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
dirty_ratelimit, task_ratelimit,
- dirtied, pause, start_time),
+ dirtied, period, pause, start_time),
TP_STRUCT__entry(
__array( char, bdi, 32)
@@ -323,6 +428,8 @@ TRACE_EVENT(balance_dirty_pages,
__field(unsigned int, dirtied_pause)
__field(unsigned long, paused)
__field( long, pause)
+ __field(unsigned long, period)
+ __field( long, think)
),
TP_fast_assign(
@@ -339,6 +446,9 @@ TRACE_EVENT(balance_dirty_pages,
__entry->task_ratelimit = KBps(task_ratelimit);
__entry->dirtied = dirtied;
__entry->dirtied_pause = current->nr_dirtied_pause;
+ __entry->think = current->dirty_paused_when == 0 ? 0 :
+ (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
+ __entry->period = period * 1000 / HZ;
__entry->pause = pause * 1000 / HZ;
__entry->paused = (jiffies - start_time) * 1000 / HZ;
),
@@ -349,7 +459,7 @@ TRACE_EVENT(balance_dirty_pages,
"bdi_setpoint=%lu bdi_dirty=%lu "
"dirty_ratelimit=%lu task_ratelimit=%lu "
"dirtied=%u dirtied_pause=%u "
- "paused=%lu pause=%ld",
+ "paused=%lu pause=%ld period=%lu think=%ld",
__entry->bdi,
__entry->limit,
__entry->setpoint,
@@ -361,10 +471,41 @@ TRACE_EVENT(balance_dirty_pages,
__entry->dirtied,
__entry->dirtied_pause,
__entry->paused, /* ms */
- __entry->pause /* ms */
+ __entry->pause, /* ms */
+ __entry->period, /* ms */
+ __entry->think /* ms */
)
);
+TRACE_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(
+ strncpy(__entry->name,
+ dev_name(inode_to_bdi(inode)->dev), 32);
+ __entry->ino = inode->i_ino;
+ __entry->state = inode->i_state;
+ __entry->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
+ )
+);
+
DECLARE_EVENT_CLASS(writeback_congest_waited_template,
TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
@@ -443,7 +584,7 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
)
);
-DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue,
+DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
TP_PROTO(struct inode *inode,
struct writeback_control *wbc,
unsigned long nr_to_write),
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-14 05:49:13 +0000