linux-kernel - [RFC][PATCH v2 04/23] (cris) __vmalloc: add gfp flags variant of pte and pmd allocation

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Message-ID: <AANLkTimp6xeoCJYh-xXqKv9qytYU3dMK8MjUQ90-am0W@mail.gmail.com>
Date:	Mon, 14 Mar 2011 17:34:03 +0000
From:	Prasad Joshi <prasadjoshi124@...il.com>
To:	Prasad Joshi <prasadjoshi124@...il.com>,
	Anand Mitra <mitra@...nfotech.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, Mikael Starvik <starvik@...s.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	linux-cris-kernel@...s.com
Subject: [RFC][PATCH v2 04/23] (cris) __vmalloc: add gfp flags variant of pte
 and pmd allocation

__vmalloc: propagating GFP allocation flag.

- adds functions to allow caller to pass the GFP flag for memory allocation
- helps in fixing the Bug 30702 (__vmalloc(GFP_NOFS) can callback
		  file system evict_inode).

Signed-off-by: Anand Mitra <mitra@...nfotech.com>
Signed-off-by: Prasad Joshi <prasadjoshi124@...il.com>
---
Chnagelog:
arch/cris/include/asm/pgalloc.h |   10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 6da975d..20254ee 100644
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -22,10 +22,16 @@ static inline void pgd_free(struct mm_struct *mm,
pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }

+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 pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned
long address)
--
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