linux-ext4 - [PATCH RFC v7 19/23] dept: Apply timeout consideration to swait

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Message-Id: <1673235231-30302-20-git-send-email-byungchul.park@lge.com>
Date:   Mon,  9 Jan 2023 12:33:47 +0900
From:   Byungchul Park <byungchul.park@....com>
To:     linux-kernel@...r.kernel.org
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Subject: [PATCH RFC v7 19/23] dept: Apply timeout consideration to swait

Now that CONFIG_DEPT_AGGRESSIVE_TIMEOUT_WAIT was introduced, apply the
consideration to swait, assuming an input 'ret' in ___swait_event()
macro is used as a timeout value.

Signed-off-by: Byungchul Park <byungchul.park@....com>
---
 include/linux/swait.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/swait.h b/include/linux/swait.h
index 1304209..339e5f2 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -162,7 +162,10 @@ static inline bool swq_has_sleeper(struct swait_queue_head *wq)
 	struct swait_queue __wait;					\
 	long __ret = ret;						\
 									\
-	sdt_might_sleep_weak(NULL);					\
+	if (!__ret || __ret == MAX_SCHEDULE_TIMEOUT)			\
+		sdt_might_sleep_weak(NULL);				\
+	else								\
+		sdt_might_sleep_weak_timeout(NULL);			\
 	INIT_LIST_HEAD(&__wait.task_list);				\
 	for (;;) {							\
 		long __int = prepare_to_swait_event(&wq, &__wait, state);\
-- 
1.9.1