* [merged] mm-debug_vm_pgtable-thp-use-page-table-depost-withdraw-with-thp.patch removed from -mm tree
@ 2020-10-16 20:47 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-10-16 20:47 UTC (permalink / raw)
To: aneesh.kumar, anshuman.khandual, christophe.leroy, mm-commits, mpe
The patch titled
Subject: mm/debug_vm_pgtable/thp: use page table depost/withdraw with THP
has been removed from the -mm tree. Its filename was
mm-debug_vm_pgtable-thp-use-page-table-depost-withdraw-with-thp.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: mm/debug_vm_pgtable/thp: use page table depost/withdraw with THP
Architectures like ppc64 use deposited page table while updating the huge
pte entries.
Link: https://lkml.kernel.org/r/20200902114222.181353-11-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/debug_vm_pgtable.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/mm/debug_vm_pgtable.c~mm-debug_vm_pgtable-thp-use-page-table-depost-withdraw-with-thp
+++ a/mm/debug_vm_pgtable.c
@@ -154,7 +154,7 @@ static void __init pmd_basic_tests(unsig
static void __init pmd_advanced_tests(struct mm_struct *mm,
struct vm_area_struct *vma, pmd_t *pmdp,
unsigned long pfn, unsigned long vaddr,
- pgprot_t prot)
+ pgprot_t prot, pgtable_t pgtable)
{
pmd_t pmd;
@@ -165,6 +165,8 @@ static void __init pmd_advanced_tests(st
/* Align the address wrt HPAGE_PMD_SIZE */
vaddr = (vaddr & HPAGE_PMD_MASK) + HPAGE_PMD_SIZE;
+ pgtable_trans_huge_deposit(mm, pmdp, pgtable);
+
pmd = pmd_mkhuge(pfn_pmd(pfn, prot));
set_pmd_at(mm, vaddr, pmdp, pmd);
pmdp_set_wrprotect(mm, vaddr, pmdp);
@@ -193,6 +195,8 @@ static void __init pmd_advanced_tests(st
pmdp_test_and_clear_young(vma, vaddr, pmdp);
pmd = READ_ONCE(*pmdp);
WARN_ON(pmd_young(pmd));
+
+ pgtable = pgtable_trans_huge_withdraw(mm, pmdp);
}
static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
@@ -371,7 +375,7 @@ static void __init pud_basic_tests(unsig
static void __init pmd_advanced_tests(struct mm_struct *mm,
struct vm_area_struct *vma, pmd_t *pmdp,
unsigned long pfn, unsigned long vaddr,
- pgprot_t prot)
+ pgprot_t prot, pgtable_t pgtable)
{
}
static void __init pud_advanced_tests(struct mm_struct *mm,
@@ -1048,7 +1052,7 @@ static int __init debug_vm_pgtable(void)
ptl = pmd_lock(mm, pmdp);
pmd_clear_tests(mm, pmdp);
- pmd_advanced_tests(mm, vma, pmdp, pmd_aligned, vaddr, prot);
+ pmd_advanced_tests(mm, vma, pmdp, pmd_aligned, vaddr, prot, saved_ptep);
pmd_huge_tests(pmdp, pmd_aligned, prot);
pmd_populate_tests(mm, pmdp, saved_ptep);
spin_unlock(ptl);
_
Patches currently in -mm which might be from aneesh.kumar@linux.ibm.com are
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2020-10-16 20:47 [merged] mm-debug_vm_pgtable-thp-use-page-table-depost-withdraw-with-thp.patch removed from -mm tree akpm
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