Messages in this thread | | | From | "Hillf Danton" <> | Subject | Re: [RFC PATCH 3/6] mm/userfaultfd: add __mcopy_atomic_hugetlb for huge page UFFDIO_COPY | Date | Tue, 07 Jun 2016 14:27:48 +0800 |
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> @@ -182,6 +354,13 @@ retry: > goto out_unlock; > > /* > + * If this is a HUGETLB vma, pass off to appropriate routine > + */ > + if (dst_vma->vm_flags & VM_HUGETLB)
Use is_vm_hugetlb_page()? And in cases in subsequent patches?
Hillf > + return __mcopy_atomic_hugetlb(dst_mm, dst_vma, dst_start, > + src_start, len, false); > + > + /* > * Be strict and only allow __mcopy_atomic on userfaultfd > * registered ranges to prevent userland errors going > * unnoticed. As far as the VM consistency is concerned, it > -- > 2.4.11
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