Makes Dept able to track dependencies by swaits, but weakly.
Signed-off-by: Byungchul Park <byungchul.park@xxxxxxx>
---
include/linux/swait.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 6a8c22b..1304209 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -6,6 +6,7 @@
#include <linux/stddef.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
+#include <linux/dept_sdt.h>
#include <asm/current.h>
/*
@@ -161,6 +162,7 @@ static inline bool swq_has_sleeper(struct swait_queue_head *wq)
struct swait_queue __wait; \
long __ret = ret; \
\
+ sdt_might_sleep_weak(NULL); \
INIT_LIST_HEAD(&__wait.task_list); \
for (;;) { \
long __int = prepare_to_swait_event(&wq, &__wait, state);\
@@ -176,6 +178,7 @@ static inline bool swq_has_sleeper(struct swait_queue_head *wq)
cmd; \
} \
finish_swait(&wq, &__wait); \
+ sdt_might_sleep_finish(); \
__out: __ret; \
})
--
1.9.1
