The patch titled Subject: mm/gup.c: use is_vm_hugetlb_page() to check whether to follow huge has been added to the -mm tree. Its filename is mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx> Subject: mm/gup.c: use is_vm_hugetlb_page() to check whether to follow huge No functional change, just leverage the helper function to improve readability as others. Link: http://lkml.kernel.org/r/20200113070322.26627-1-richardw.yang@xxxxxxxxxxxxxxx Signed-off-by: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/gup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/gup.c~mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge +++ a/mm/gup.c @@ -323,7 +323,7 @@ static struct page *follow_pmd_mask(stru pmdval = READ_ONCE(*pmd); if (pmd_none(pmdval)) return no_page_table(vma, flags); - if (pmd_huge(pmdval) && vma->vm_flags & VM_HUGETLB) { + if (pmd_huge(pmdval) && is_vm_hugetlb_page(vma)) { page = follow_huge_pmd(mm, address, pmd, flags); if (page) return page; @@ -433,7 +433,7 @@ static struct page *follow_pud_mask(stru pud = pud_offset(p4dp, address); if (pud_none(*pud)) return no_page_table(vma, flags); - if (pud_huge(*pud) && vma->vm_flags & VM_HUGETLB) { + if (pud_huge(*pud) && is_vm_hugetlb_page(vma)) { page = follow_huge_pud(mm, address, pud, flags); if (page) return page; _ Patches currently in -mm which might be from richardw.yang@xxxxxxxxxxxxxxx are mm-thp-grab-the-lock-before-manipulation-defer-list.patch mm-gupc-use-is_vm_hugetlb_page-to-check-whether-to-follow-huge.patch mm-huge_memoryc-use-head-to-check-huge-zero-page.patch mm-huge_memoryc-use-head-to-emphasize-the-purpose-of-page.patch mm-huge_memoryc-reduce-critical-section-protected-by-split_queue_lock.patch mm-remove-dead-code-totalram_pages_set.patch