[PATCH v17 15/47] dept: apply sdt_might_sleep_{start, end}() to waitqueue wait

[Byungchul Park]

Make dept able to track dependencies by waitqueue waits.

Signed-off-by: Byungchul Park <byungc...@sk.com>
---
 include/linux/wait.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 09855d819418..65dd50f25e54 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>
 
@@ -305,6 +306,7 @@ extern void init_wait_entry(struct wait_queue_entry 
*wq_entry, int flags);
        struct wait_queue_entry __wq_entry;                                     
\
        long __ret = ret;       /* explicit shadow */                           
\
                                                                                
\
+       sdt_might_sleep_start(NULL);                                            
\
        init_wait_entry(&__wq_entry, exclusive ? WQ_FLAG_EXCLUSIVE : 0);        
\
        for (;;) {                                                              
\
                long __int = prepare_to_wait_event(&wq_head, &__wq_entry, 
state);\
@@ -323,6 +325,7 @@ extern void init_wait_entry(struct wait_queue_entry 
*wq_entry, int flags);
                        break;                                                  
\
        }                                                                       
\
        finish_wait(&wq_head, &__wq_entry);                                     
\
+       sdt_might_sleep_end();                                                  
\
 __out: __ret;                                                                  
\
 })
 
-- 
2.17.1