linux-kernel - [GIT PULL] x86 fix

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Date:	Sun, 27 Sep 2009 10:02:27 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: [GIT PULL] x86 fix

Linus,

Please pull the latest x86-fixes-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus


out-of-topic modifications in x86-fixes-for-linus:
--------------------------------------------------
mm/Kconfig                         # d949f36: x86: Fix hwpoison code related bu

 Thanks,

	Ingo

------------------>
Linus Torvalds (1):
      x86: Fix hwpoison code related build failure on 32-bit NUMAQ


 arch/x86/Kconfig |   11 +++++++++++
 mm/Kconfig       |    4 +++-
 2 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9369879..8da9374 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -432,6 +432,17 @@ config X86_NUMAQ
 	  of Flat Logical.  You will need a new lynxer.elf file to flash your
 	  firmware with - send email to <Martin.Bligh@...ibm.com>.
 
+config X86_SUPPORTS_MEMORY_FAILURE
+	bool
+	# MCE code calls memory_failure():
+	depends on X86_MCE
+	# On 32-bit this adds too big of NODES_SHIFT and we run out of page flags:
+	depends on !X86_NUMAQ
+	# On 32-bit SPARSEMEM adds too big of SECTIONS_WIDTH:
+	depends on X86_64 || !SPARSEMEM
+	select ARCH_SUPPORTS_MEMORY_FAILURE
+	default y
+
 config X86_VISWS
 	bool "SGI 320/540 (Visual Workstation)"
 	depends on X86_32 && PCI && X86_MPPARSE && PCI_GODIRECT
diff --git a/mm/Kconfig b/mm/Kconfig
index 2477607..edd300a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -244,10 +244,12 @@ config DEFAULT_MMAP_MIN_ADDR
 	  This value can be changed after boot using the
 	  /proc/sys/vm/mmap_min_addr tunable.
 
+config ARCH_SUPPORTS_MEMORY_FAILURE
+	bool
 
 config MEMORY_FAILURE
 	depends on MMU
-	depends on X86_MCE
+	depends on ARCH_SUPPORTS_MEMORY_FAILURE
 	bool "Enable recovery from hardware memory errors"
 	help
 	  Enables code to recover from some memory failures on systems
--
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