From 64aa348edc617dea17bbd01ddee4e47886d5ec8c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 11 Aug 2008 09:30:21 +0200
Subject: [PATCH] lockdep: lock_set_subclass - reset a held lock's subclass

this can be used to reset a held lock's subclass, for arbitrary-depth
iterated data structures such as trees or lists which have per-node
locks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Reading git-format-patch failed