rebind_workers() can't return until all workers notify itself,
it means when rebind_workers() returns, all queued busy_worker.rebind_work
have launched, the pending bit is cleared.
When the new rebind_workers() comes, it dozn't need to test the already known
cleared pending bit.
Signed-off-by: Lai Jiangshan <la...@cn.fujitsu.com>
---
kernel/workqueue.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 3e0bd20..eec11c3 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1420,10 +1420,6 @@ static void rebind_workers(struct global_cwq *gcwq)
for_each_busy_worker(worker, i, pos, gcwq) {
struct work_struct *rebind_work = &worker->rebind_work;
- if (test_and_set_bit(WORK_STRUCT_PENDING_BIT,
- work_data_bits(rebind_work)))
- continue;
-
all_cnt++;
worker->worker_rebind = &worker_rebind;
--
1.7.4.4
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