__mutex_lock_common: use signal_pending_state()

Change __mutex_lock_common() to use signal_pending_state() for the sake of
the code re-use.

This adds 7 bytes to kernel/mutex.o, but afaics only because gcc isn't smart
enough.

(btw, uninlining of __mutex_lock_common() shrinks .text from 2722 to 1542,
 perhaps it is worth doing).

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/mutex.c b/kernel/mutex.c
index d046a34..bcdc9ac 100644 (file)
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -165,10 +165,7 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
                 * got a signal? (This code gets eliminated in the
                 * TASK_UNINTERRUPTIBLE case.)
                 */
-               if (unlikely((state == TASK_INTERRUPTIBLE &&
-                                       signal_pending(task)) ||
-                             (state == TASK_KILLABLE &&
-                                       fatal_signal_pending(task)))) {
+               if (unlikely(signal_pending_state(state, task))) {
                        mutex_remove_waiter(lock, &waiter,
                                            task_thread_info(task));
                        mutex_release(&lock->dep_map, 1, ip);