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Diffstat (limited to 'kernel/freezer.c')
-rw-r--r--kernel/freezer.c32
1 files changed, 11 insertions, 21 deletions
diff --git a/kernel/freezer.c b/kernel/freezer.c
index b1e7a7b3d2cd..c3496c6a91b2 100644
--- a/kernel/freezer.c
+++ b/kernel/freezer.c
@@ -52,39 +52,29 @@ bool __refrigerator(bool check_kthr_stop)
/* Hmm, should we be allowed to suspend when there are realtime
processes around? */
bool was_frozen = false;
- long save;
+ long save = current->state;
- /*
- * No point in checking freezing() again - the caller already did.
- * Proceed to enter FROZEN.
- */
- spin_lock_irq(&freezer_lock);
-repeat:
- current->flags |= PF_FROZEN;
- spin_unlock_irq(&freezer_lock);
-
- save = current->state;
pr_debug("%s entered refrigerator\n", current->comm);
- spin_lock_irq(&current->sighand->siglock);
- recalc_sigpending(); /* We sent fake signal, clean it up */
- spin_unlock_irq(&current->sighand->siglock);
-
for (;;) {
set_current_state(TASK_UNINTERRUPTIBLE);
+
+ spin_lock_irq(&freezer_lock);
+ current->flags |= PF_FROZEN;
if (!freezing(current) ||
(check_kthr_stop && kthread_should_stop()))
+ current->flags &= ~PF_FROZEN;
+ spin_unlock_irq(&freezer_lock);
+
+ if (!(current->flags & PF_FROZEN))
break;
was_frozen = true;
schedule();
}
- /* leave FROZEN */
- spin_lock_irq(&freezer_lock);
- if (freezing(current))
- goto repeat;
- current->flags &= ~PF_FROZEN;
- spin_unlock_irq(&freezer_lock);
+ spin_lock_irq(&current->sighand->siglock);
+ recalc_sigpending(); /* We sent fake signal, clean it up */
+ spin_unlock_irq(&current->sighand->siglock);
pr_debug("%s left refrigerator\n", current->comm);