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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@linux.vnet.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Aneesh Kumar K.V 2016-12-12 16:41:59 -08:00 committed by Linus Torvalds
parent 3999f52e31
commit 8bea805207
1 changed files with 2 additions and 4 deletions
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6
mm/hugetlb.c
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@ -3713,8 +3713,7 @@ 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;
@ -4332,8 +4331,7 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
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));