linux-kernel - [PATCH v2 01/17] locking/lockdep: Remove version from lock

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Message-Id: <1542653726-5655-2-git-send-email-longman@redhat.com>
Date:   Mon, 19 Nov 2018 13:55:10 -0500
From:   Waiman Long <longman@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Will Deacon <will.deacon@....com>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Tejun Heo <tj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Waiman Long <longman@...hat.com>
Subject: [PATCH v2 01/17] locking/lockdep: Remove version from lock_class structure

It turns out the version field in the lock_class structure isn't used
anywhere. Just remove it.

Signed-off-by: Waiman Long <longman@...hat.com>
---
 include/linux/lockdep.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 1fd82ff..c5335df 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -97,8 +97,6 @@ struct lock_class {
 	 * Generation counter, when doing certain classes of graph walking,
 	 * to ensure that we check one node only once:
 	 */
-	unsigned int			version;
-
 	int				name_version;
 	const char			*name;
 
-- 
1.8.3.1