[PATCH v8 10/25] dept: Apply sdt_might_sleep_{start,end}() to waitqueue wait
From: Byungchul Park <hidden>
Date: 2023-01-27 01:50:53
Also in:
dri-devel, linux-block, linux-ext4, linux-fsdevel, linux-mm, lkml
Subsystem:
scheduler, the rest · Maintainers:
Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot, Linus Torvalds
Makes Dept able to track dependencies by waitqueue waits. Signed-off-by: Byungchul Park <redacted> --- include/linux/wait.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/linux/wait.h b/include/linux/wait.h
index a0307b5..ff349e6 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_start(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_end(); \ __out: __ret; \ })
--
1.9.1