btrfs: Add ftrace for btrfs_workqueue
Add ftrace for btrfs_workqueue for further workqueue tunning. This patch needs to applied after the workqueue replace patchset. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fb.com>
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@ -24,6 +24,7 @@
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#include <linux/freezer.h>
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#include <linux/workqueue.h>
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#include "async-thread.h"
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#include "ctree.h"
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#define WORK_DONE_BIT 0
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#define WORK_ORDER_DONE_BIT 1
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@ -210,6 +211,7 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
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*/
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if (test_and_set_bit(WORK_ORDER_DONE_BIT, &work->flags))
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break;
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trace_btrfs_ordered_sched(work);
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spin_unlock_irqrestore(lock, flags);
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work->ordered_func(work);
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@ -223,6 +225,7 @@ static void run_ordered_work(struct __btrfs_workqueue *wq)
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* with the lock held though
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*/
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work->ordered_free(work);
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trace_btrfs_all_work_done(work);
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}
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spin_unlock_irqrestore(lock, flags);
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}
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@ -246,12 +249,15 @@ static void normal_work_helper(struct work_struct *arg)
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need_order = 1;
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wq = work->wq;
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trace_btrfs_work_sched(work);
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thresh_exec_hook(wq);
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work->func(work);
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if (need_order) {
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set_bit(WORK_DONE_BIT, &work->flags);
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run_ordered_work(wq);
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}
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if (!need_order)
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trace_btrfs_all_work_done(work);
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}
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void btrfs_init_work(struct btrfs_work *work,
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@ -280,6 +286,7 @@ static inline void __btrfs_queue_work(struct __btrfs_workqueue *wq,
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spin_unlock_irqrestore(&wq->list_lock, flags);
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}
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queue_work(wq->normal_wq, &work->normal_work);
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trace_btrfs_work_queued(work);
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}
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void btrfs_queue_work(struct btrfs_workqueue *wq,
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@ -21,6 +21,7 @@ struct btrfs_block_group_cache;
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struct btrfs_free_cluster;
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struct map_lookup;
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struct extent_buffer;
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struct btrfs_work;
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#define show_ref_type(type) \
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__print_symbolic(type, \
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@ -982,6 +983,87 @@ TRACE_EVENT(free_extent_state,
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(void *)__entry->ip)
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);
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DECLARE_EVENT_CLASS(btrfs__work,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work),
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TP_STRUCT__entry(
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__field( void *, work )
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__field( void *, wq )
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__field( void *, func )
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__field( void *, ordered_func )
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__field( void *, ordered_free )
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),
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TP_fast_assign(
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__entry->work = work;
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__entry->wq = work->wq;
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__entry->func = work->func;
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__entry->ordered_func = work->ordered_func;
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__entry->ordered_free = work->ordered_free;
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),
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TP_printk("work=%p, wq=%p, func=%p, ordered_func=%p, ordered_free=%p",
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__entry->work, __entry->wq, __entry->func,
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__entry->ordered_func, __entry->ordered_free)
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);
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/* For situiations that the work is freed */
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DECLARE_EVENT_CLASS(btrfs__work__done,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work),
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TP_STRUCT__entry(
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__field( void *, work )
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),
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TP_fast_assign(
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__entry->work = work;
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),
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TP_printk("work->%p", __entry->work)
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);
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DEFINE_EVENT(btrfs__work, btrfs_work_queued,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work)
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);
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DEFINE_EVENT(btrfs__work, btrfs_work_sched,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work)
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);
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DEFINE_EVENT(btrfs__work, btrfs_normal_work_done,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work)
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);
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DEFINE_EVENT(btrfs__work__done, btrfs_all_work_done,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work)
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);
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DEFINE_EVENT(btrfs__work, btrfs_ordered_sched,
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TP_PROTO(struct btrfs_work *work),
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TP_ARGS(work)
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);
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#endif /* _TRACE_BTRFS_H */
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/* This part must be outside protection */
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