From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 25 Mar 2010 13:51:51 +0000 (+0100)
Subject: x86, ptrace: Fix block-step
X-Git-Tag: v2.6.35-rc1~522^2~139
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea8e61b7bbc4a2faef77db34eb2db2a2c2372ff6;p=pandora-kernel.git

x86, ptrace: Fix block-step

Implement ptrace-block-step using TIF_BLOCKSTEP which will set
DEBUGCTLMSR_BTF when set for a task while preserving any other
DEBUGCTLMSR bits.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100325135414.017536066@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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