The patch titled
Subject: mm/hugetlb.c: use huge_pte_lock instead of opencoding the lock
has been added to the -mm tree. Its filename is
mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock.patch
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------------------------------------------------------
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Subject: mm/hugetlb.c: use huge_pte_lock instead of opencoding the lock
No functional change by this patch.
Link: http://lkml.kernel.org/r/20161018090234.22574-1-aneesh.kumar@xxxxxxxxxxxxxxxxxx
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff -puN mm/hugetlb.c~mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock
+++ a/mm/hugetlb.c
@@ -3648,8 +3648,7 @@ retry:
vma_end_reservation(h, vma, address);
}
- ptl = huge_pte_lockptr(h, mm, ptep);
- spin_lock(ptl);
+ ptl = huge_pte_lock(h, mm, ptep);
size = i_size_read(mapping->host) >> huge_page_shift(h);
if (idx >= size)
goto backout;
@@ -4266,8 +4265,7 @@ pte_t *huge_pmd_share(struct mm_struct *
if (!spte)
goto out;
- ptl = huge_pte_lockptr(hstate_vma(vma), mm, spte);
- spin_lock(ptl);
+ ptl = huge_pte_lock(hstate_vma(vma), mm, spte);
if (pud_none(*pud)) {
pud_populate(mm, pud,
(pmd_t *)((unsigned long)spte & PAGE_MASK));
_
Patches currently in -mm which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
mm-hugetlb-use-the-right-pte-val-for-compare-in-hugetlb_cow.patch
mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock.patch
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