+++ /dev/null
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM writeback
-
-#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/writeback.h>
-
-#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"} \
- )
-
-#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"}
-
-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),
- TP_STRUCT__entry(
- __array(char, name, 32)
- __field(long, nr_pages)
- __field(dev_t, sb_dev)
- __field(int, sync_mode)
- __field(int, for_kupdate)
- __field(int, range_cyclic)
- __field(int, for_background)
- __field(int, reason)
- ),
- TP_fast_assign(
- struct device *dev = bdi->dev;
- if (!dev)
- dev = default_backing_dev_info.dev;
- strncpy(__entry->name, dev_name(dev), 32);
- __entry->nr_pages = work->nr_pages;
- __entry->sb_dev = work->sb ? work->sb->s_dev : 0;
- __entry->sync_mode = work->sync_mode;
- __entry->for_kupdate = work->for_kupdate;
- __entry->range_cyclic = work->range_cyclic;
- __entry->for_background = work->for_background;
- __entry->reason = work->reason;
- ),
- TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
- "kupdate=%d range_cyclic=%d background=%d reason=%s",
- __entry->name,
- MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
- __entry->nr_pages,
- __entry->sync_mode,
- __entry->for_kupdate,
- __entry->range_cyclic,
- __entry->for_background,
- __print_symbolic(__entry->reason, WB_WORK_REASON)
- )
-);
-#define DEFINE_WRITEBACK_WORK_EVENT(name) \
-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_queue);
-DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
-DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
-DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
-DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
-
-TRACE_EVENT(writeback_pages_written,
- TP_PROTO(long pages_written),
- TP_ARGS(pages_written),
- TP_STRUCT__entry(
- __field(long, pages)
- ),
- TP_fast_assign(
- __entry->pages = pages_written;
- ),
- TP_printk("%ld", __entry->pages)
-);
-
-DECLARE_EVENT_CLASS(writeback_class,
- TP_PROTO(struct backing_dev_info *bdi),
- TP_ARGS(bdi),
- TP_STRUCT__entry(
- __array(char, name, 32)
- ),
- TP_fast_assign(
- strncpy(__entry->name, dev_name(bdi->dev), 32);
- ),
- TP_printk("bdi %s",
- __entry->name
- )
-);
-#define DEFINE_WRITEBACK_EVENT(name) \
-DEFINE_EVENT(writeback_class, name, \
- TP_PROTO(struct backing_dev_info *bdi), \
- TP_ARGS(bdi))
-
-DEFINE_WRITEBACK_EVENT(writeback_nowork);
-DEFINE_WRITEBACK_EVENT(writeback_wake_background);
-DEFINE_WRITEBACK_EVENT(writeback_bdi_register);
-DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister);
-
-DECLARE_EVENT_CLASS(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)
- __field(long, range_start)
- __field(long, range_end)
- ),
-
- TP_fast_assign(
- strncpy(__entry->name, dev_name(bdi->dev), 32);
- __entry->nr_to_write = wbc->nr_to_write;
- __entry->pages_skipped = wbc->pages_skipped;
- __entry->sync_mode = wbc->sync_mode;
- __entry->for_kupdate = wbc->for_kupdate;
- __entry->for_background = wbc->for_background;
- __entry->for_reclaim = wbc->for_reclaim;
- __entry->range_cyclic = wbc->range_cyclic;
- __entry->range_start = (long)wbc->range_start;
- __entry->range_end = (long)wbc->range_end;
- ),
-
- TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
- "bgrd=%d reclm=%d cyclic=%d "
- "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,
- __entry->range_start,
- __entry->range_end)
-)
-
-#define DEFINE_WBC_EVENT(name) \
-DEFINE_EVENT(wbc_class, name, \
- TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
- TP_ARGS(wbc, bdi))
-DEFINE_WBC_EVENT(wbc_writepage);
-
-TRACE_EVENT(writeback_queue_io,
- TP_PROTO(struct bdi_writeback *wb,
- struct wb_writeback_work *work,
- int moved),
- TP_ARGS(wb, work, moved),
- TP_STRUCT__entry(
- __array(char, name, 32)
- __field(unsigned long, older)
- __field(long, age)
- __field(int, moved)
- __field(int, reason)
- ),
- TP_fast_assign(
- unsigned long *older_than_this = work->older_than_this;
- strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
- __entry->older = older_than_this ? *older_than_this : 0;
- __entry->age = older_than_this ?
- (jiffies - *older_than_this) * 1000 / HZ : -1;
- __entry->moved = moved;
- __entry->reason = work->reason;
- ),
- TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s",
- __entry->name,
- __entry->older, /* older_than_this in jiffies */
- __entry->age, /* older_than_this in relative milliseconds */
- __entry->moved,
- __print_symbolic(__entry->reason, WB_WORK_REASON)
- )
-);
-
-TRACE_EVENT(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(
- __entry->nr_dirty = global_page_state(NR_FILE_DIRTY);
- __entry->nr_writeback = global_page_state(NR_WRITEBACK);
- __entry->nr_unstable = global_page_state(NR_UNSTABLE_NFS);
- __entry->nr_dirtied = global_page_state(NR_DIRTIED);
- __entry->nr_written = global_page_state(NR_WRITTEN);
- __entry->background_thresh = background_thresh;
- __entry->dirty_thresh = dirty_thresh;
- __entry->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
- )
-);
-
-#define KBps(x) ((x) << (PAGE_SHIFT - 10))
-
-TRACE_EVENT(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(
- strlcpy(__entry->bdi, dev_name(bdi->dev), 32);
- __entry->write_bw = KBps(bdi->write_bandwidth);
- __entry->avg_write_bw = KBps(bdi->avg_write_bandwidth);
- __entry->dirty_rate = KBps(dirty_rate);
- __entry->dirty_ratelimit = KBps(bdi->dirty_ratelimit);
- __entry->task_ratelimit = KBps(task_ratelimit);
- __entry->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 */
- )
-);
-
-TRACE_EVENT(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,
- 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, period, pause, start_time),
-
- 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)
- __field(unsigned long, period)
- __field( long, think)
- ),
-
- TP_fast_assign(
- unsigned long freerun = (thresh + bg_thresh) / 2;
- strlcpy(__entry->bdi, dev_name(bdi->dev), 32);
-
- __entry->limit = global_dirty_limit;
- __entry->setpoint = (global_dirty_limit + freerun) / 2;
- __entry->dirty = dirty;
- __entry->bdi_setpoint = __entry->setpoint *
- bdi_thresh / (thresh + 1);
- __entry->bdi_dirty = bdi_dirty;
- __entry->dirty_ratelimit = KBps(dirty_ratelimit);
- __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;
- ),
-
-
- 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 */
- )
-);
-
-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),
-
- TP_ARGS(usec_timeout, usec_delayed),
-
- TP_STRUCT__entry(
- __field( unsigned int, usec_timeout )
- __field( unsigned int, usec_delayed )
- ),
-
- TP_fast_assign(
- __entry->usec_timeout = usec_timeout;
- __entry->usec_delayed = usec_delayed;
- ),
-
- TP_printk("usec_timeout=%u usec_delayed=%u",
- __entry->usec_timeout,
- __entry->usec_delayed)
-);
-
-DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
-
- TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
-
- TP_ARGS(usec_timeout, usec_delayed)
-);
-
-DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
-
- TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
-
- TP_ARGS(usec_timeout, usec_delayed)
-);
-
-DECLARE_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(
- 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;
- __entry->writeback_index = inode->i_mapping->writeback_index;
- __entry->nr_to_write = nr_to_write;
- __entry->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
- )
-);
-
-DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
- TP_PROTO(struct inode *inode,
- struct writeback_control *wbc,
- unsigned long nr_to_write),
- TP_ARGS(inode, wbc, nr_to_write)
-);
-
-DEFINE_EVENT(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 /* _TRACE_WRITEBACK_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>
projects / lttng-modules.git / blobdiff