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x86, bts: reenable ptrace branch trace support 

The races found by Oleg Nesterov have been fixed.

Reenable branch trace support.

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
LKML-Reference: <20090424094448.A30216@sedona.ch.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Markus Metzger 2009-04-24 09:44:48 +02:00 committed by Ingo Molnar
parent 782cc5ae63
commit 7e0bfad24d
1 changed files with 0 additions and 1 deletions
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arch/x86/Kconfig.cpu
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@ -506,7 +506,6 @@ config X86_PTRACE_BTS
bool "Branch Trace Store"
default y
depends on X86_DEBUGCTLMSR
depends on BROKEN
---help---
This adds a ptrace interface to the hardware's branch trace store.