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| author |   Larry Finger <Larry.Finger@lwfinger.net> | 2010-08-21 22:10:59 -0500 |
|---|---|---|
| committer | Larry Finger <Larry.Finger@lwfinger.net> | 2010-08-21 22:10:59 -0500 |
| commit | 2c1179afc3bc92a2db930a085fee33214bd886e3 (patch) | |
| tree | 46f77738c569542f0779386eb9f6051595389dec /kernel/workqueue.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 (diff) | |
| parent | workqueue: Add basic tracepoints to track workqueue execution (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 2994a0e3a61c..8bd600c020e5 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -35,6 +35,9 @@ #include <linux/lockdep.h> #include <linux/idr.h> +#define CREATE_TRACE_POINTS +#include <trace/events/workqueue.h> + #include "workqueue_sched.h" enum { @@ -1790,7 +1793,13 @@ static void process_one_work(struct worker *worker, struct work_struct *work) work_clear_pending(work); lock_map_acquire(&cwq->wq->lockdep_map); lock_map_acquire(&lockdep_map); + trace_workqueue_execute_start(work); f(work); + /* + * While we must be careful to not use "work" after this, the trace + * point will only record its address. + */ + trace_workqueue_execute_end(work); lock_map_release(&lockdep_map); lock_map_release(&cwq->wq->lockdep_map); |