linux-kernel - Re: [git pull] Please pull powerpc.git merge branch

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Date:	Fri, 30 Oct 2009 15:06:38 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linuxppc-dev list <linuxppc-dev@...abs.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [git pull] Please pull powerpc.git merge branch

On Thu, 2009-10-29 at 09:14 -0700, Linus Torvalds wrote:
> 
> On Tue, 27 Oct 2009, Benjamin Herrenschmidt wrote:
> > 
> > Kumar Gala (7):
> >       powerpc: Add a Book-3E 64-bit defconfig
> >       powerpc: Fix compile errors found by new ppc64e_defconfig
> >       powerpc: Limit hugetlbfs support to PPC64 Book-3S machines
> 
> This is incredibly ugly. Why should the generic fs/Kconfig know about some 
> random odd architecture detail like PPC_BOOK3S_64?
> 
> I merged it, and noticed this because Super-H caused clashes by cleaning 
> up. I would suggest PowerPC do the same.
> 
> This patch is not signed-off, nor do I want any credit. But if it works on 
> ppc, please send me something like this back.

Pushed this to my merge branch:

(BTW. Where does this SYS_* form comes from ? We had ARCH_ now we have
SYS_ * ? Oic... it's a mips thing... oh well no big deal)

>>From 5a1eb5c4453207ad9e7f6e8ca4f8db289743c993 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Date: Fri, 30 Oct 2009 15:03:54 +1100
Subject: [PATCH] powerpc: Cleanup Kconfig selection of hugetlbfs support

Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---
 arch/powerpc/Kconfig |    4 ++++
 fs/Kconfig           |    2 +-
 2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 10a0a54..2ba14e7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -414,6 +414,10 @@ config ARCH_SPARSEMEM_DEFAULT
 config ARCH_POPULATES_NODE_MAP
 	def_bool y
 
+config SYS_SUPPORTS_HUGETLBFS
+       def_bool y
+       depends on PPC_BOOK3S_64
+
 source "mm/Kconfig"
 
 config ARCH_MEMORY_PROBE
diff --git a/fs/Kconfig b/fs/Kconfig
index 2126078..64d44ef 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -135,7 +135,7 @@ config TMPFS_POSIX_ACL
 
 config HUGETLBFS
 	bool "HugeTLB file system support"
-	depends on X86 || IA64 || PPC_BOOK3S_64 || SPARC64 || (S390 && 64BIT) || \
+	depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
 		   SYS_SUPPORTS_HUGETLBFS || BROKEN
 	help
 	  hugetlbfs is a filesystem backing for HugeTLB pages, based on
-- 
1.6.1.2.14.gf26b5



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