From: Markus Metzger <markus.t.metzger@intel.com>
Date: Fri, 24 Apr 2009 07:44:48 +0000 (+0200)
Subject: x86, bts: reenable ptrace branch trace support
X-Git-Tag: v2.6.31-rc1~401^2~62^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7e0bfad24d85de7cf2202a7b0ce51de11a077b21;p=karo-tx-linux.git

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 8130334329c0..924e156a85ab 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -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.