linux-kernel - [PATCH v12 10/27] dept: Apply sdt_might_sleep

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240221094933.36348-11-byungchul@sk.com>
Date: Wed, 21 Feb 2024 18:49:16 +0900
From: Byungchul Park <byungchul@...com>
To: linux-kernel@...r.kernel.org
Cc: kernel_team@...ynix.com,
	torvalds@...ux-foundation.org,
	damien.lemoal@...nsource.wdc.com,
	linux-ide@...r.kernel.org,
	adilger.kernel@...ger.ca,
	linux-ext4@...r.kernel.org,
	mingo@...hat.com,
	peterz@...radead.org,
	will@...nel.org,
	tglx@...utronix.de,
	rostedt@...dmis.org,
	joel@...lfernandes.org,
	sashal@...nel.org,
	daniel.vetter@...ll.ch,
	duyuyang@...il.com,
	johannes.berg@...el.com,
	tj@...nel.org,
	tytso@....edu,
	willy@...radead.org,
	david@...morbit.com,
	amir73il@...il.com,
	gregkh@...uxfoundation.org,
	kernel-team@....com,
	linux-mm@...ck.org,
	akpm@...ux-foundation.org,
	mhocko@...nel.org,
	minchan@...nel.org,
	hannes@...xchg.org,
	vdavydov.dev@...il.com,
	sj@...nel.org,
	jglisse@...hat.com,
	dennis@...nel.org,
	cl@...ux.com,
	penberg@...nel.org,
	rientjes@...gle.com,
	vbabka@...e.cz,
	ngupta@...are.org,
	linux-block@...r.kernel.org,
	josef@...icpanda.com,
	linux-fsdevel@...r.kernel.org,
	viro@...iv.linux.org.uk,
	jack@...e.cz,
	jlayton@...nel.org,
	dan.j.williams@...el.com,
	hch@...radead.org,
	djwong@...nel.org,
	dri-devel@...ts.freedesktop.org,
	rodrigosiqueiramelo@...il.com,
	melissa.srw@...il.com,
	hamohammed.sa@...il.com,
	42.hyeyoo@...il.com,
	chris.p.wilson@...el.com,
	gwan-gyeong.mun@...el.com,
	max.byungchul.park@...il.com,
	boqun.feng@...il.com,
	longman@...hat.com,
	hdanton@...a.com,
	her0gyugyu@...il.com
Subject: [PATCH v12 10/27] dept: Apply sdt_might_sleep_{start,end}() to hashed-waitqueue wait

Makes Dept able to track dependencies by hashed-waitqueue waits.

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

diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
index 7725b7579b78..fe89282c3e96 100644
--- a/include/linux/wait_bit.h
+++ b/include/linux/wait_bit.h
@@ -6,6 +6,7 @@
  * Linux wait-bit related types and methods:
  */
 #include <linux/wait.h>
+#include <linux/dept_sdt.h>
 
 struct wait_bit_key {
 	void			*flags;
@@ -246,6 +247,7 @@ extern wait_queue_head_t *__var_waitqueue(void *p);
 	struct wait_bit_queue_entry __wbq_entry;			\
 	long __ret = ret; /* explicit shadow */				\
 									\
+	sdt_might_sleep_start(NULL);					\
 	init_wait_var_entry(&__wbq_entry, var,				\
 			    exclusive ? WQ_FLAG_EXCLUSIVE : 0);		\
 	for (;;) {							\
@@ -263,6 +265,7 @@ extern wait_queue_head_t *__var_waitqueue(void *p);
 		cmd;							\
 	}								\
 	finish_wait(__wq_head, &__wbq_entry.wq_entry);			\
+	sdt_might_sleep_end();						\
 __out:	__ret;								\
 })
 
-- 
2.17.1