linux-kernel - Re: [RFC][PATCH v3 22/22] mm, alpha: add gfp flags variant of pmd and pte allocations

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Date:	Fri, 18 Mar 2011 20:10:21 +0000
From:	Prasad Joshi <prasadjoshi124@...il.com>
To:	rth@...ddle.net, linux-alpha@...r.kernel.org,
	linux-kernel@...r.kernel.org, prasadjoshi124@...il.com,
	mitra@...nfotech.com
Subject: Re: [RFC][PATCH v3 22/22] mm, alpha: add gfp flags variant of pmd
 and pte allocations


 - Added __pmd_alloc_one, __pte_alloc_one_kernel to allocate pages using specified GFP flag
 - changed pmd_alloc_one, pte_alloc_one_kernel to call these newly added function using GFP_KERNEL
 - helps in fixing the Bug 30702

Signed-off-by: Prasad Joshi <prasadjoshi124@...il.com>
Signed-off-by: Anand Mitra <mitra@...nfotech.com>
---
 arch/alpha/include/asm/pgalloc.h |   18 ++++++++++++++----
 1 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index bc2a0da..81281ac 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -38,10 +38,15 @@ pgd_free(struct mm_struct *mm, pgd_t *pgd)
 }
 
 static inline pmd_t *
+__pmd_alloc_one(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
+{
+	return (pmd_t *)__get_free_page(gfp_mask | __GFP_ZERO);
+}
+
+static inline pmd_t *
 pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	return ret;
+	return __pmd_alloc_one(mm, address, GFP_KERNEL | __GFP_REPEAT);
 }
 
 static inline void
@@ -51,10 +56,15 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 }
 
 static inline pte_t *
+__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
+{
+	return (pte_t *)__get_free_page(gfp_mask | __GFP_ZERO);
+}
+
+static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	return pte;
+	return __pte_alloc_one_kernel(mm, address, GFP_KERNEL | __GFP_REPEAT);
 }
 
 static inline void
-- 
1.7.0.4

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