diff options
| author | Olof Johansson <olof@lixom.net> | 2013-12-28 21:37:03 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-12-28 21:38:16 -0800 |
| commit | fe5a365cdb9cc925d5ce86a5bb4509dca57f3894 (patch) | |
| tree | 8dd536be0e16e86109295142edd1ef1fd18c2e98 /kernel/workqueue.c | |
| parent | 4d77ce6c1fcae189dcd6fb0c7342f1c901b50a70 (diff) | |
| parent | 413541dd66d51f791a0b169d9b9014e4f56be13c (diff) | |
Merge tag 'v3.13-rc5' into next/boards
Need a newer base version to get a regulator fix for Samsung platforms that
they enable building in a defconfig.
Linux 3.13-rc5
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c66912be990f..b010eac595d2 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -2851,19 +2851,6 @@ already_gone: return false; } -static bool __flush_work(struct work_struct *work) -{ - struct wq_barrier barr; - - if (start_flush_work(work, &barr)) { - wait_for_completion(&barr.done); - destroy_work_on_stack(&barr.work); - return true; - } else { - return false; - } -} - /** * flush_work - wait for a work to finish executing the last queueing instance * @work: the work to flush @@ -2877,10 +2864,18 @@ static bool __flush_work(struct work_struct *work) */ bool flush_work(struct work_struct *work) { + struct wq_barrier barr; + lock_map_acquire(&work->lockdep_map); lock_map_release(&work->lockdep_map); - return __flush_work(work); + if (start_flush_work(work, &barr)) { + wait_for_completion(&barr.done); + destroy_work_on_stack(&barr.work); + return true; + } else { + return false; + } } EXPORT_SYMBOL_GPL(flush_work); @@ -4832,14 +4827,7 @@ long work_on_cpu(int cpu, long (*fn)(void *), void *arg) INIT_WORK_ONSTACK(&wfc.work, work_for_cpu_fn); schedule_work_on(cpu, &wfc.work); - - /* - * The work item is on-stack and can't lead to deadlock through - * flushing. Use __flush_work() to avoid spurious lockdep warnings - * when work_on_cpu()s are nested. - */ - __flush_work(&wfc.work); - + flush_work(&wfc.work); return wfc.ret; } EXPORT_SYMBOL_GPL(work_on_cpu); |
