linux-next: build failure after merge of the folio tree

Stephen Rothwell
2022-02-28T12:54:07Z

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Hi all,

After merging the folio tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

mm/mmap.c: In function 'do_mas_align_munmap':
mm/mmap.c:2375:25: error: implicit declaration of function 'munlock_vma_pages_all'; did you mean 'munlock_vma_page'? [-Werror=implicit-function-declaration]
2375 | munlock_vma_pages_all(next);
| ^~~~~~~~~~~~~~~~~~~~~
| munlock_vma_page
mm/mmap.c: In function 'do_brk_munmap':
mm/mmap.c:2908:17: error: implicit declaration of function 'munlock_vma_pages_range'; did you mean 'count_vma_pages_range'? [-Werror=implicit-function-declaration]
2908 | munlock_vma_pages_range(&unmap, newbrk, oldbrk);
| ^~~~~~~~~~~~~~~~~~~~~~~
| count_vma_pages_range

Caused by commits

a213e5cf71cb ("mm/munlock: delete munlock_vma_pages_all(), allow oomreap")
34b6792380ce ("mm/munlock: mlock_pte_range() when mlocking or munlocking")

interacting with commits

99f86dff3df6 ("mm/mmap: Change do_brk_flags() to expand existing VMA and add do_brk_munmap()")
04552dc1edc5 ("mm: Remove the vma linked list")

from the maple tree.

Given other feedback about the maple tree, I have dropped it for today.

I am not sure what effect this will have on Andrew's patch series, but
I guess I will find out shortly :-(