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>
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 8130334..924e156 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -506,7 +506,6 @@
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.