From: Prasad Joshi <prasadjoshi124@gmail.com>
To: kyle@mcmartin.ca, deller@gmx.de, jejb@parisc-linux.org,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
prasadjoshi124@gmail.com, mitra@kqinfotech.com
Subject: Re: [RFC][PATCH v3 11/22] mm, parisc: add gfp flags variant of pmd and pte allocations
Date: Fri, 18 Mar 2011 19:59:26 +0000 [thread overview]
Message-ID: <20110318195926.GL4746@prasad-kvm> (raw)
In-Reply-To: <20110318195754.GK4746@prasad-kvm>
- Added __pte_alloc_one_kernel() function to allocate zeroed page using
passed allocation flag. The function pte_alloc_one_kernel() is changed to
call __pte_alloc_one_kernel() passing GFP_KERNEL | __GFP_REPEAT allocation
flags.
2-level page table support
- Added macro __pmd_alloc_one which is same as pmd_alloc_one, but has an extra
argument to pass gfp_t
3-level page table support
- Added function __pmd_alloc_one() to allocate pages using allocation flag.
The allocation flag is argument to the function.
- The function pmd_alloc_one() is changed to call __pmd_alloc_one(), passing
GFP_KERNEL | __GFP_REPEAT allocation flags.
- All these changes help in fixing the Bug 30702
Signed-off-by: Prasad Joshi <prasadjoshi124@gmail.com>
Signed-off-by: Anand Mitra <mitra@kqinfotech.com>
---
arch/parisc/include/asm/pgalloc.h | 21 ++++++++++++++++-----
1 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index fc987a1..0284a43 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -61,15 +61,20 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
(__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
}
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pmd_t *
+__pmd_alloc_one(struct mm_struct *mm, unsigned long address, gfp_t gfp_mask)
{
- pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
- PMD_ORDER);
+ pmd_t *pmd = (pmd_t *)__get_free_pages(gfp_mask, PMD_ORDER);
if (pmd)
memset(pmd, 0, PAGE_SIZE<<PMD_ORDER);
return pmd;
}
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+{
+ return __pmd_alloc_one(mm, address, GFP_KERNEL | __GFP_REPEAT);
+}
+
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
#ifdef CONFIG_64BIT
@@ -90,6 +95,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
* inside the pgd, so has no extra memory associated with it.
*/
+#define __pmd_alloc_one(mm, addr, mask) ({ BUG(); ((pmd_t *)2); })
#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
#define pmd_free(mm, x) do { } while (0)
#define pgd_populate(mm, pmd, pte) BUG()
@@ -127,10 +133,15 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
}
static inline pte_t *
+__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr, 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 addr)
{
- pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
- return pte;
+ return __pte_alloc_one_kernel(mm, addr, GFP_KERNEL | __GFP_REPEAT);
}
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
--
1.7.0.4
next prev parent reply other threads:[~2011-03-18 19:58 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-18 19:41 [RFC][PATCH v3 00/22] __vmalloc: Propagating GFP allocation flag inside __vmalloc() Prasad Joshi
2011-03-18 19:43 ` [RFC][PATCH v3 01/22] mm: " Prasad Joshi
2011-03-18 19:46 ` [RFC][PATCH v3 02/22] mm, xtensa: add gfp flags variant of pte allocations Prasad Joshi
2011-03-18 19:47 ` [RFC][PATCH v3 03/22] mm, x86: add gfp flags variant of pud, pmd, and " Prasad Joshi
2011-03-18 19:49 ` [RFC][PATCH v3 04/22] mm, um: add gfp flags variant of pmd " Prasad Joshi
2011-03-18 19:50 ` [RFC][PATCH v3 05/22] mm, tile: " Prasad Joshi
2011-03-18 19:51 ` [RFC][PATCH v3 06/22] mm, sparc: " Prasad Joshi
2011-03-18 19:53 ` [RFC][PATCH v3 07/22] mm, sh: " Prasad Joshi
2011-03-18 19:55 ` [RFC][PATCH v3 08/22] mm, score: add gfp flags variant of " Prasad Joshi
2011-03-18 19:56 ` [RFC][PATCH v3 09/22] mm, s390: add gfp flags variant of pud, pte, and " Prasad Joshi
2011-03-18 19:57 ` [RFC][PATCH v3 10/22] mm, powerpc: " Prasad Joshi
2011-03-18 19:59 ` Prasad Joshi [this message]
2011-03-18 20:00 ` [RFC][PATCH v3 12/22] mm, mn10300: add gfp flags variant of " Prasad Joshi
2011-03-18 20:01 ` [RFC][PATCH v3 13/22] mm, mips: add gfp flags variant of pmd and " Prasad Joshi
2011-03-18 20:02 ` [RFC][PATCH v3 14/22] mm, microblaze: " Prasad Joshi
2011-03-18 20:04 ` [RFC][PATCH v3 15/22] mm, m68k: " Prasad Joshi
2011-03-18 20:04 ` [RFC][PATCH v3 16/22] mm, m32r: " Prasad Joshi
2011-03-18 20:05 ` [RFC][PATCH v3 17/22] mm, ia64: add gfp flags variant of pud, " Prasad Joshi
2011-03-18 20:06 ` [RFC][PATCH v3 18/22] mm, frv: " Prasad Joshi
2011-03-18 20:07 ` [RFC][PATCH v3 19/22] mm, cris: add gfp flags variant of " Prasad Joshi
2011-03-18 20:08 ` [RFC][PATCH v3 20/22] mm, avr32: " Prasad Joshi
2011-03-18 20:09 ` [RFC][PATCH v3 21/22] mm, arm: add gfp flags variant of pmd and " Prasad Joshi
2011-03-18 20:10 ` [RFC][PATCH v3 22/22] mm, alpha: " Prasad Joshi
2011-03-21 8:34 ` [RFC][PATCH v3 09/22] mm, s390: add gfp flags variant of pud, pte, " Martin Schwidefsky
2011-03-21 19:02 ` Prasad Joshi
2011-03-22 7:56 ` Martin Schwidefsky
2011-03-22 14:42 ` [RFC][PATCH v3 07/22] mm, sh: add gfp flags variant of pmd " Paul Mundt
[not found] ` <4D83B7F2.4000903@tilera.com>
2011-03-18 20:12 ` [RFC][PATCH v3 05/22] mm, tile: " Prasad Joshi
2011-03-18 22:17 ` [RFC][PATCH v3 03/22] mm, x86: add gfp flags variant of pud, pmd, " David Rientjes
2011-03-21 19:05 ` Prasad Joshi
2011-03-21 20:15 ` David Rientjes
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