* [patch 062/108] mm/hugetlb/migration: use set_huge_pte_at instead of set_pte_at
@ 2017-07-06 22:38 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2017-07-06 22:38 UTC (permalink / raw)
To: akpm, aneesh.kumar, benh, khandual, kravetz, mm-commits, mpe,
n-horiguchi, torvalds
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: mm/hugetlb/migration: use set_huge_pte_at instead of set_pte_at
Patch series "HugeTLB migration support for PPC64", v2.
This patch (of 9):
The right interface to use to set a hugetlb pte entry is set_huge_pte_at.
Use that instead of set_pte_at.
Link: http://lkml.kernel.org/r/1494926612-23928-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/migrate.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff -puN mm/migrate.c~mm-hugetlb-migration-use-set_huge_pte_at-instead-of-set_pte_at mm/migrate.c
--- a/mm/migrate.c~mm-hugetlb-migration-use-set_huge_pte_at-instead-of-set_pte_at
+++ a/mm/migrate.c
@@ -227,25 +227,26 @@ static bool remove_migration_pte(struct
if (is_write_migration_entry(entry))
pte = maybe_mkwrite(pte, vma);
+ flush_dcache_page(new);
#ifdef CONFIG_HUGETLB_PAGE
if (PageHuge(new)) {
pte = pte_mkhuge(pte);
pte = arch_make_huge_pte(pte, vma, new, 0);
- }
-#endif
- flush_dcache_page(new);
- set_pte_at(vma->vm_mm, pvmw.address, pvmw.pte, pte);
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2017-07-06 22:38 [patch 062/108] mm/hugetlb/migration: use set_huge_pte_at instead of set_pte_at akpm
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