On Tue, 18 Feb 2014, riel@xxxxxxxxxx wrote:
> From: Rik van Riel <riel@xxxxxxxxxx>
>
> Reorganize the order of ifs in change_pmd_range a little, in
> preparation for the next patch.
>
> Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> Reported-by: Xing Gang <gang.xing@xxxxxx>
> Tested-by: Chegu Vinod <chegu_vinod@xxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
> ---
> mm/mprotect.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/mm/mprotect.c b/mm/mprotect.c
> index 769a67a..6006c05 100644
> --- a/mm/mprotect.c
> +++ b/mm/mprotect.c
> @@ -118,6 +118,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
> unsigned long this_pages;
>
> next = pmd_addr_end(addr, end);
> + if (!pmd_trans_huge(*pmd) && pmd_none_or_clear_bad(pmd))
> + continue;
> if (pmd_trans_huge(*pmd)) {
> if (next - addr != HPAGE_PMD_SIZE)
> split_huge_page_pmd(vma, addr, pmd);
Extra tab there, though.
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