Introduce down_killable()

[pandora-kernel.git] / include / linux / semaphore.h

diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index b3c691b..88f2a28 100644 (file)
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -61,6 +61,12 @@ extern void down(struct semaphore *sem);
  */
 extern int __must_check down_interruptible(struct semaphore *sem);
 
+/*
+ * As down_interruptible(), except the sleep may only be interrupted by
+ * signals which are fatal to this process.
+ */
+extern int __must_check down_killable(struct semaphore *sem);
+
 /*
  * As down(), except this function will not sleep.  It will return 0 if it
  * acquired the semaphore and 1 if the semaphore was contended.  This