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x86, ptrace: Fix block-step
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Thu, 25 Mar 2010 13:51:51 +0000 (14:51 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 26 Mar 2010 10:33:57 +0000 (11:33 +0100)
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>

No differences found
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