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authorOlof Johansson <olof@lixom.net>2013-12-28 21:37:03 -0800
committerOlof Johansson <olof@lixom.net>2013-12-28 21:38:16 -0800
commitfe5a365cdb9cc925d5ce86a5bb4509dca57f3894 (patch)
tree8dd536be0e16e86109295142edd1ef1fd18c2e98 /kernel/workqueue.c
parent4d77ce6c1fcae189dcd6fb0c7342f1c901b50a70 (diff)
parent413541dd66d51f791a0b169d9b9014e4f56be13c (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.c32
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);