From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin Cross Subject: [PATCH 09/10] sigtimedwait: use freezable blocking call Date: Mon, 29 Apr 2013 14:45:45 -0700 Message-ID: <1367271946-7239-10-git-send-email-ccross@android.com> References: <1367271946-7239-1-git-send-email-ccross@android.com> Return-path: In-Reply-To: <1367271946-7239-1-git-send-email-ccross@android.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , arve@android.com, Colin Cross , Al Viro , Andrew Morton , Oleg Nesterov , "Eric W. Biederman" , Serge Hallyn List-Id: linux-pm@vger.kernel.org Avoid waking up every thread sleeping in a sigtimedwait call during suspend and resume by calling a freezable blocking call. Signed-off-by: Colin Cross --- kernel/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/signal.c b/kernel/signal.c index 598dc06..10a70a0 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2845,7 +2845,7 @@ int do_sigtimedwait(const sigset_t *which, siginfo_t *info, recalc_sigpending(); spin_unlock_irq(&tsk->sighand->siglock); - timeout = schedule_timeout_interruptible(timeout); + timeout = freezable_schedule_timeout_interruptible(timeout); spin_lock_irq(&tsk->sighand->siglock); __set_task_blocked(tsk, &tsk->real_blocked); -- 1.8.2.1