worker_thread: don't play with signals

worker_thread() doesn't need to "Block and flush all signals", this was
already done by its caller, kthread().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 7 deletions

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0611de815a8..87693b37d01 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -290,18 +290,11 @@ static int worker_thread(void *__cwq)
         struct cpu_workqueue_struct *cwq = __cwq;
         DEFINE_WAIT(wait);
         struct k_sigaction sa;
-        sigset_t blocked;
 
         if (!cwq->wq->freezeable)
                 current->flags |= PF_NOFREEZE;
 
         set_user_nice(current, -5);
-
-        /* Block and flush all signals */
-        sigfillset(&blocked);
-        sigprocmask(SIG_BLOCK, &blocked, NULL);
-        flush_signals(current);
-
         /*
          * We inherited MPOL_INTERLEAVE from the booting kernel.
          * Set MPOL_DEFAULT to insure node local allocations.