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mm: convert p[te|md]_mknonnuma and remaining page table manipulations

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With PROT_NONE, the traditional page table manipulation functions are
sufficient.

[[email protected]: fix compiler warning in pmdp_invalidate()]
[[email protected]: fix build with STRICT_MM_TYPECHECKS]
Signed-off-by: Mel Gorman <[email protected]>
Acked-by: Linus Torvalds <[email protected]>
Acked-by: Aneesh Kumar <[email protected]>
Tested-by: Sasha Levin <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Kirill Shutemov <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Rik van Riel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Mel Gorman 2015-02-12 14:58:28 -08:00 • committed by Linus Torvalds
commit 4d94246699
8 changed files with 21 additions and 38 deletions
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2
mm/pgtable-generic.c
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@ -193,8 +193,6 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
pmd_t *pmdp)
{
pmd_t entry = *pmdp;
if (pmd_protnone(entry))
entry = pmd_mknonnuma(entry);
set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(entry));
flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
}