linux-kernel - [tip:tracing/core] x86, bts: reenable ptrace branch trace support

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Date:	Thu, 7 May 2009 09:25:57 GMT
From:	tip-bot for Markus Metzger <markus.t.metzger@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	markus.t.metzger@...el.com, oleg@...hat.com, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:tracing/core] x86, bts: reenable ptrace branch trace support

Commit-ID:  7e0bfad24d85de7cf2202a7b0ce51de11a077b21
Gitweb:     http://git.kernel.org/tip/7e0bfad24d85de7cf2202a7b0ce51de11a077b21
Author:     Markus Metzger <markus.t.metzger@...el.com>
AuthorDate: Fri, 24 Apr 2009 09:44:48 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 24 Apr 2009 10:18:51 +0200

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@...el.com>
Acked-by: Oleg Nesterov <oleg@...hat.com>
LKML-Reference: <20090424094448.A30216@...ona.ch.intel.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/Kconfig.cpu |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

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 @@ 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.
 
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