From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org,
David Gibson <dwg@au1.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>,
linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH -V6 18/27] mm/THP: withdraw the pgtable after pmdp related operations
Date: Mon, 22 Apr 2013 15:30:52 +0530 [thread overview]
Message-ID: <1366624861-24948-19-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1366624861-24948-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
For architectures like ppc64 we look at deposited pgtable when
calling pmdp_get_and_clear. So do the pgtable_trans_huge_withdraw
after finishing pmdp related operations.
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
mm/huge_memory.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 84f3180..2a43782 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1363,9 +1363,10 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
struct page *page;
pgtable_t pgtable;
pmd_t orig_pmd;
- pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd);
+
orig_pmd = pmdp_get_and_clear(tlb->mm, addr, pmd);
tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
+ pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd);
if (is_huge_zero_pmd(orig_pmd)) {
tlb->mm->nr_ptes--;
spin_unlock(&tlb->mm->page_table_lock);
--
1.7.10
next prev parent reply other threads:[~2013-04-22 10:03 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-22 10:00 [PATCH -V6 00/27] THP support for PPC64 Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 01/27] powerpc: Use signed formatting when printing error Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 02/27] powerpc: Save DAR and DSISR in pt_regs on MCE Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 03/27] powerpc: Don't hard code the size of pte page Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 04/27] powerpc: Don't truncate pgd_index wrongly Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 05/27] powerpc: New hugepage directory format Aneesh Kumar K.V
2013-04-23 7:01 ` Paul Mackerras
2013-04-23 8:42 ` Aneesh Kumar K.V
2013-04-24 5:47 ` Paul Mackerras
2013-04-25 6:00 ` Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 06/27] powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 07/27] powerpc: Reduce the PTE_INDEX_SIZE Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 08/27] powerpc: Move the pte free routines from common header Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 09/27] powerpc: Reduce PTE table memory wastage Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 10/27] powerpc: Use encode avpn where we need only avpn values Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 11/27] powerpc: Decode the pte-lp-encoding bits correctly Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 12/27] powerpc: Fix hpte_decode to use the correct decoding for page sizes Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 13/27] powerpc: print both base and actual page size on hash failure Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 14/27] powerpc: Print page size info during boot Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 15/27] powerpc: Update tlbie/tlbiel as per ISA doc Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 16/27] mm/THP: HPAGE_SHIFT is not a #define on some arch Aneesh Kumar K.V
2013-04-22 15:43 ` Andrea Arcangeli
2013-04-22 10:00 ` [PATCH -V6 17/27] mm/THP: Add pmd args to pgtable deposit and withdraw APIs Aneesh Kumar K.V
2013-04-22 15:46 ` Andrea Arcangeli
2013-04-22 10:00 ` Aneesh Kumar K.V [this message]
2013-04-22 15:49 ` [PATCH -V6 18/27] mm/THP: withdraw the pgtable after pmdp related operations Andrea Arcangeli
2013-04-24 9:08 ` Aneesh Kumar K.V
2013-04-24 15:14 ` Andrea Arcangeli
2013-04-25 6:11 ` Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 19/27] powerpc/THP: Double the PMD table size for THP Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 20/27] powerpc/THP: Implement transparent hugepages for ppc64 Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 21/27] powerpc: move find_linux_pte_or_hugepte and gup_hugepte to common code Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 22/27] powerpc: Update find_linux_pte_or_hugepte to handle transparent hugepages Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 23/27] powerpc: Replace find_linux_pte with find_linux_pte_or_hugepte Aneesh Kumar K.V
2013-04-24 6:29 ` Paul Mackerras
2013-04-22 10:00 ` [PATCH -V6 24/27] powerpc: Update gup_pmd_range to handle transparent hugepages Aneesh Kumar K.V
2013-04-22 10:00 ` [PATCH -V6 25/27] powerpc/THP: Add code to handle HPTE faults for large pages Aneesh Kumar K.V
2013-04-22 10:01 ` [PATCH -V6 26/27] powerpc/THP: Enable THP on PPC64 Aneesh Kumar K.V
2013-04-22 10:01 ` [PATCH -V6 27/27] powerpc: Optimize hugepage invalidate Aneesh Kumar K.V
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