linux-kernel - [PATCH -mm] fix powerpc/sparc build

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Date:	Mon, 10 Jan 2011 19:04:25 +0100
From:	Andrea Arcangeli <aarcange@...hat.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH -mm] fix powerpc/sparc build

This would become
thp-add-pmd-mangling-generic-functions-fix-pgtableh-build-for-um-2.patch

=====
Subject: thp: build fix for pmdp_get_and_clear

From: Andrea Arcangeli <aarcange@...hat.com>

__pmd should return a valid pmd_t for every arch.

Signed-off-by: Andrea Arcangeli <aarcange@...hat.com>
---


diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -93,7 +93,7 @@ static inline pmd_t pmdp_get_and_clear(s
 				       pmd_t *pmdp)
 {
 	BUG();
-	return (pmd_t){ 0 };
+	return __pmd(0);
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 #endif

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