Makes Dept able to track dependencies by waitqueue waits, but weakly.
Signed-off-by: Byungchul Park <byungchul.park@xxxxxxx>
---
include/linux/wait.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/wait.h b/include/linux/wait.h
index a0307b5..ede466c 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -7,6 +7,7 @@
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/spinlock.h>
+#include <linux/dept_sdt.h>
#include <asm/current.h>
#include <uapi/linux/wait.h>
@@ -303,6 +304,7 @@ static inline void wake_up_pollfree(struct wait_queue_head *wq_head)
struct wait_queue_entry __wq_entry; \
long __ret = ret; /* explicit shadow */ \
\
+ sdt_might_sleep_weak(NULL); \
init_wait_entry(&__wq_entry, exclusive ? WQ_FLAG_EXCLUSIVE : 0); \
for (;;) { \
long __int = prepare_to_wait_event(&wq_head, &__wq_entry, state);\
@@ -318,6 +320,7 @@ static inline void wake_up_pollfree(struct wait_queue_head *wq_head)
cmd; \
} \
finish_wait(&wq_head, &__wq_entry); \
+ sdt_might_sleep_finish(); \
__out: __ret; \
})
--
1.9.1
