linux-kernel - [PATCH 1/2] locking/lockdep: Remove obsolete generation counter comment in lock

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Date:   Tue, 22 Feb 2022 19:20:52 -0500
From:   Waiman Long <longman@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Will Deacon <will.deacon@....com>,
        Boqun Feng <boqun.feng@...il.com>
Cc:     linux-kernel@...r.kernel.org, Waiman Long <longman@...hat.com>
Subject: [PATCH 1/2] locking/lockdep: Remove obsolete generation counter comment in lock_class

Commit 2421b7f3573b ("locking/lockdep: Remove ::version from lock_class
structure") had removed the obsolete version field from the lock_class
structure but failed to remove the corresponding generation counter
comment leading to confusion about what generation counter really
is. Remove that comment as well to avoid confusion.

Signed-off-by: Waiman Long <longman@...hat.com>
---
 include/linux/lockdep_types.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/include/linux/lockdep_types.h b/include/linux/lockdep_types.h
index d22430840b53..9c62d274b71e 100644
--- a/include/linux/lockdep_types.h
+++ b/include/linux/lockdep_types.h
@@ -118,10 +118,6 @@ struct lock_class {
 	unsigned long			usage_mask;
 	const struct lock_trace		*usage_traces[LOCK_TRACE_STATES];
 
-	/*
-	 * Generation counter, when doing certain classes of graph walking,
-	 * to ensure that we check one node only once:
-	 */
 	int				name_version;
 	const char			*name;
 
-- 
2.27.0