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signal: use current->state helpers 

Call __set_current_state() instead of assigning the new state directly.
These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments, keeping
track of who changed the state.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Davidlohr Bueso 2015-02-17 13:45:41 -08:00 committed by Linus Torvalds
parent 1cca3385e6
commit 1df0135588
1 changed files with 2 additions and 2 deletions
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4
kernel/signal.c
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@ -3550,7 +3550,7 @@ SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)
SYSCALL_DEFINE0(pause) SYSCALL_DEFINE0(pause)
{ {
while (!signal_pending(current)) { while (!signal_pending(current)) {
current->state = TASK_INTERRUPTIBLE; __set_current_state(TASK_INTERRUPTIBLE);
schedule(); schedule();
} }
return -ERESTARTNOHAND; return -ERESTARTNOHAND;
@ -3563,7 +3563,7 @@ int sigsuspend(sigset_t *set)
current->saved_sigmask = current->blocked; current->saved_sigmask = current->blocked;
set_current_blocked(set); set_current_blocked(set);
current->state = TASK_INTERRUPTIBLE; __set_current_state(TASK_INTERRUPTIBLE);
schedule(); schedule();
set_restore_sigmask(); set_restore_sigmask();
return -ERESTARTNOHAND; return -ERESTARTNOHAND;