new helper: wait_event_killable_exclusive()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 27d7a0ab5da3..c3ff74d764fa 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -600,6 +600,19 @@ do {									\
         __ret;                                                          \
 })
 
+#define __wait_event_killable_exclusive(wq, condition)                  \
+        ___wait_event(wq, condition, TASK_KILLABLE, 1, 0,               \
+                      schedule())
+
+#define wait_event_killable_exclusive(wq, condition)                    \
+({                                                                      \
+        int __ret = 0;                                                  \
+        might_sleep();                                                  \
+        if (!(condition))                                               \
+                __ret = __wait_event_killable_exclusive(wq, condition); \
+        __ret;                                                          \
+})
+
 
 #define __wait_event_freezable_exclusive(wq, condition)                 \
         ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, 0,          \