linux-kernel - [PATCH] lockdep: lookup_chain

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Message-ID: <20070419093407.GA3258@ff.dom.local>
Date:	Thu, 19 Apr 2007 11:34:07 +0200
From:	Jarek Poplawski <jarkao2@...pl>
To:	linux-kernel@...r.kernel.org
Cc:	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH] lockdep: lookup_chain_cache comment errata

[PATCH] lockdep: lookup_chain_cache comment errata

Signed-off-by: Jarek Poplawski <jarkao2@...pl>

---

diff -Nurp 2.6.21-rc7-/kernel/lockdep.c 2.6.21-rc7/kernel/lockdep.c
--- 2.6.21-rc7-/kernel/lockdep.c	2007-04-18 10:14:06.000000000 +0200
+++ 2.6.21-rc7/kernel/lockdep.c	2007-04-19 11:25:40.000000000 +0200
@@ -1313,8 +1313,9 @@ out_unlock_set:
 
 /*
  * Look up a dependency chain. If the key is not present yet then
- * add it and return 0 - in this case the new dependency chain is
- * validated. If the key is already hashed, return 1.
+ * add it and return 1 - in this case the new dependency chain is
+ * validated. If the key is already hashed, return 0.
+ * (On return with 1 graph_lock is held.)
  */
 static inline int lookup_chain_cache(u64 chain_key, struct lock_class *class)
 {
-
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