From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, dwg@au1.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH -V8 01/18] powerpc/mm: Use the correct mask value when looking at pgtable address
Date: Sun, 12 May 2013 21:44:08 +0530 [thread overview]
Message-ID: <1368375265-19593-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1368375265-19593-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Our pgtable are 2*sizeof(pte_t)*PTRS_PER_PTE which is PTE_FRAG_SIZE.
Instead of depending on frag size, mask with PMD_MASKED_BITS.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/pgalloc-64.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 91acb12..b66ae72 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -186,7 +186,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
static inline pgtable_t pmd_pgtable(pmd_t pmd)
{
- return (pgtable_t)(pmd_val(pmd) & -sizeof(pte_t)*PTRS_PER_PTE);
+ return (pgtable_t)(pmd_val(pmd) & ~PMD_MASKED_BITS);
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
--
1.8.1.2
next prev parent reply other threads:[~2013-05-12 16:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-12 16:14 [PATCH -V8 00/18] THP support for PPC64 Aneesh Kumar K.V
2013-05-12 16:14 ` Aneesh Kumar K.V [this message]
2013-05-12 16:14 ` [PATCH -V8 02/18] mm/THP: Use pmd_populate to update the pmd with pgtable_t pointer Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 03/18] mm/THP: Use the right function when updating access flags Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 04/18] mm/THP: Add pmd args to pgtable deposit and withdraw APIs Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 05/18] mm/THP: withdraw the pgtable after pmdp related operations Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 06/18] mm/THP: Don't use HPAGE_SHIFT in transparent hugepage code Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 07/18] mm/THP: deposit the transpare huge pgtable before set_pmd Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 08/18] powerpc/THP: Double the PMD table size for THP Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 09/18] powerpc/THP: Implement transparent hugepages for ppc64 Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 10/18] powerpc: move find_linux_pte_or_hugepte and gup_hugepte to common code Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 11/18] powerpc: Update find_linux_pte_or_hugepte to handle transparent hugepages Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 12/18] powerpc: Replace find_linux_pte with find_linux_pte_or_hugepte Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 13/18] powerpc: Update gup_pmd_range to handle transparent hugepages Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 14/18] powerpc/THP: Add code to handle HPTE faults for hugepages Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 15/18] powerpc: Make linux pagetable walk safe with THP enabled Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 16/18] powerpc/THP: Enable THP on PPC64 Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 17/18] powerpc: Optimize hugepage invalidate Aneesh Kumar K.V
2013-05-12 16:14 ` [PATCH -V8 18/18] powerpc: disable assert_pte_locked for collapse_huge_page Aneesh Kumar K.V
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