The patch titled Subject: mm-hugetlb-introduce-hugetlb_walk-fix has been added to the -mm mm-unstable branch. Its filename is mm-hugetlb-introduce-hugetlb_walk-fix.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-introduce-hugetlb_walk-fix.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Peter Xu <peterx@xxxxxxxxxx> Subject: mm-hugetlb-introduce-hugetlb_walk-fix Date: Wed, 30 Nov 2022 10:33:44 -0500 fix build with CONFIG_HUGETLB_PAGE=n, CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y Link: https://lkml.kernel.org/r/Y4d4qh0ACmo455Nj@x1n Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> Reported-by: Eric Biggers <ebiggers@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/hugetlb.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/include/linux/hugetlb.h~mm-hugetlb-introduce-hugetlb_walk-fix +++ a/include/linux/hugetlb.h @@ -1248,7 +1248,8 @@ __vma_shareable_flags_pmd(struct vm_area static inline pte_t * hugetlb_walk(struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { -#if defined(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) && defined(CONFIG_LOCKDEP) +#if defined(CONFIG_HUGETLB_PAGE) && \ + defined(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) && defined(CONFIG_LOCKDEP) struct hugetlb_vma_lock *vma_lock = vma->vm_private_data; /* _ Patches currently in -mm which might be from peterx@xxxxxxxxxx are mm-migrate-fix-read-only-page-got-writable-when-recover-pte.patch mm-always-compile-in-pte-markers.patch mm-use-pte-markers-for-swap-errors.patch mm-uffd-sanity-check-write-bit-for-uffd-wp-protected-ptes.patch selftests-vm-use-memfd-for-hugepage-mmap-test.patch mm-thp-re-apply-mkdirty-for-small-pages-after-split.patch mm-hugetlb-let-vma_offset_start-to-return-start.patch mm-hugetlb-dont-wait-for-migration-entry-during-follow-page.patch mm-hugetlb-document-huge_pte_offset-usage.patch mm-hugetlb-move-swap-entry-handling-into-vma-lock-when-faulted.patch mm-hugetlb-make-userfaultfd_huge_must_wait-safe-to-pmd-unshare.patch mm-hugetlb-make-hugetlb_follow_page_mask-safe-to-pmd-unshare.patch mm-hugetlb-make-follow_hugetlb_page-safe-to-pmd-unshare.patch mm-hugetlb-make-walk_hugetlb_range-safe-to-pmd-unshare.patch mm-hugetlb-make-page_vma_mapped_walk-safe-to-pmd-unshare.patch mm-hugetlb-introduce-hugetlb_walk.patch mm-hugetlb-introduce-hugetlb_walk-fix.patch