From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by kanga.kvack.org (Postfix) with ESMTP id A10756B1BE9 for ; Mon, 19 Nov 2018 13:57:01 -0500 (EST) Received: by mail-qk1-f198.google.com with SMTP id d196so71046734qkb.6 for ; Mon, 19 Nov 2018 10:57:01 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id g24si6557809qvb.43.2018.11.19.10.57.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 19 Nov 2018 10:57:00 -0800 (PST) From: Waiman Long Subject: [PATCH v2 06/17] debugobjects: Mark pool_lock as a terminal lock Date: Mon, 19 Nov 2018 13:55:15 -0500 Message-Id: <1542653726-5655-7-git-send-email-longman@redhat.com> In-Reply-To: <1542653726-5655-1-git-send-email-longman@redhat.com> References: <1542653726-5655-1-git-send-email-longman@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: Peter Zijlstra , Ingo Molnar , Will Deacon , Thomas Gleixner Cc: linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Petr Mladek , Sergey Senozhatsky , Andrey Ryabinin , Tejun Heo , Andrew Morton , Waiman Long By marking the internal pool_lock as a terminal lock, lockdep will be able to skip full validation to improve locking performance. Signed-off-by: Waiman Long --- lib/debugobjects.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 70935ed..403dd95 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -39,7 +39,7 @@ struct debug_bucket { static struct debug_obj obj_static_pool[ODEBUG_POOL_SIZE] __initdata; -static DEFINE_RAW_SPINLOCK(pool_lock); +static DEFINE_RAW_TERMINAL_SPINLOCK(pool_lock); static HLIST_HEAD(obj_pool); static HLIST_HEAD(obj_to_free); -- 1.8.3.1