btrfs: Add ftrace for btrfs_workqueue (52483bc2) · Commits · 戴 / test

fs/btrfs/async-thread.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#include <linux/freezer.h>
		#include <linux/workqueue.h>
		#include "async-thread.h"
		#include "ctree.h"

		#define WORK_DONE_BIT 0
		#define WORK_ORDER_DONE_BIT 1
		@@ -210,6 +211,7 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
		*/
		if (test_and_set_bit(WORK_ORDER_DONE_BIT, &work->flags))
		break;
		trace_btrfs_ordered_sched(work);
		spin_unlock_irqrestore(lock, flags);
		work->ordered_func(work);

		@@ -223,6 +225,7 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
		* with the lock held though
		*/
		work->ordered_free(work);
		trace_btrfs_all_work_done(work);
		}
		spin_unlock_irqrestore(lock, flags);
		}
		@@ -246,12 +249,15 @@ static void normal_work_helper(struct work_struct *arg)
		need_order = 1;
		wq = work->wq;

		trace_btrfs_work_sched(work);
		thresh_exec_hook(wq);
		work->func(work);
		if (need_order) {
		set_bit(WORK_DONE_BIT, &work->flags);
		run_ordered_work(wq);
		}
		if (!need_order)
		trace_btrfs_all_work_done(work);
		}

		void btrfs_init_work(struct btrfs_work *work,
		@@ -280,6 +286,7 @@ static inline void __btrfs_queue_work(struct __btrfs_workqueue *wq,
		spin_unlock_irqrestore(&wq->list_lock, flags);
		}
		queue_work(wq->normal_wq, &work->normal_work);
		trace_btrfs_work_queued(work);
		}

		void btrfs_queue_work(struct btrfs_workqueue *wq,

include/trace/events/btrfs.h

+82 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ struct btrfs_block_group_cache;
		struct btrfs_free_cluster;
		struct map_lookup;
		struct extent_buffer;
		struct btrfs_work;

		#define show_ref_type(type) \
		__print_symbolic(type, \
		@@ -982,6 +983,87 @@ TRACE_EVENT(free_extent_state,
		(void *)__entry->ip)
		);

		DECLARE_EVENT_CLASS(btrfs__work,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work),

		TP_STRUCT__entry(
		__field( void *, work )
		__field( void *, wq )
		__field( void *, func )
		__field( void *, ordered_func )
		__field( void *, ordered_free )
		),

		TP_fast_assign(
		__entry->work = work;
		__entry->wq = work->wq;
		__entry->func = work->func;
		__entry->ordered_func = work->ordered_func;
		__entry->ordered_free = work->ordered_free;
		),

		TP_printk("work=%p, wq=%p, func=%p, ordered_func=%p, ordered_free=%p",
		__entry->work, __entry->wq, __entry->func,
		__entry->ordered_func, __entry->ordered_free)
		);

		/* For situiations that the work is freed */
		DECLARE_EVENT_CLASS(btrfs__work__done,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work),

		TP_STRUCT__entry(
		__field( void *, work )
		),

		TP_fast_assign(
		__entry->work = work;
		),

		TP_printk("work->%p", __entry->work)
		);

		DEFINE_EVENT(btrfs__work, btrfs_work_queued,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work)
		);

		DEFINE_EVENT(btrfs__work, btrfs_work_sched,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work)
		);

		DEFINE_EVENT(btrfs__work, btrfs_normal_work_done,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work)
		);

		DEFINE_EVENT(btrfs__work__done, btrfs_all_work_done,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work)
		);

		DEFINE_EVENT(btrfs__work, btrfs_ordered_sched,

		TP_PROTO(struct btrfs_work *work),

		TP_ARGS(work)
		);


		#endif /* _TRACE_BTRFS_H */

		/* This part must be outside protection */

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