tree df2998225dc10245ce3d392576a724ab788e456c
parent faa4602e47690fb11221e00f9b9697c8dc0d4b19
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1269525111 +0100
committer Ingo Molnar <mingo@elte.hu> 1269599637 +0100

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>