| From | "Aneesh Kumar K.V" <> | Subject | Re: [PATCH v2 04/20] mm, hugetlb: remove useless check about mapping type | Date | Wed, 21 Aug 2013 15:00:24 +0530 |
| |
Joonsoo Kim <iamjoonsoo.kim@lge.com> writes:
> is_vma_resv_set(vma, HPAGE_RESV_OWNER) implys that this mapping is > for private. So we don't need to check whether this mapping is for > shared or not. > > This patch is just for clean-up. > > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index ea1ae0a..c017c52 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -2544,8 +2544,7 @@ retry_avoidcopy: > * at the time of fork() could consume its reserves on COW instead > * of the full address range. > */ > - if (!(vma->vm_flags & VM_MAYSHARE) && > - is_vma_resv_set(vma, HPAGE_RESV_OWNER) && > + if (is_vma_resv_set(vma, HPAGE_RESV_OWNER) && > old_page != pagecache_page) > outside_reserve = 1; > > -- > 1.7.9.5
|