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Subjectlinux-next: build failure after merge of the akpm-current tree
Hi all,

After merging the akpm-current tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:

mm/madvise.c: In function 'madvise_cold_or_pageout_pte_range':
mm/madvise.c:346:7: error: implicit declaration of function 'is_huge_zero_pmd'; did you mean 'is_huge_zero_pud'? [-Werror=implicit-function-declaration]
if (is_huge_zero_pmd(orig_pmd))
^~~~~~~~~~~~~~~~
is_huge_zero_pud
mm/madvise.c:373:7: error: implicit declaration of function 'pmd_young'; did you mean 'pte_young'? [-Werror=implicit-function-declaration]
if (pmd_young(orig_pmd)) {
^~~~~~~~~
pte_young
mm/madvise.c:375:15: error: implicit declaration of function 'pmd_mkold'; did you mean 'pte_mkold'? [-Werror=implicit-function-declaration]
orig_pmd = pmd_mkold(orig_pmd);
^~~~~~~~~
pte_mkold
mm/madvise.c:377:4: error: implicit declaration of function 'set_pmd_at'; did you mean 'set_pte_at'? [-Werror=implicit-function-declaration]
set_pmd_at(mm, addr, pmd, orig_pmd);
^~~~~~~~~~
set_pte_at

Caused by commit

d6d92199f211 ("mm, madvise: introduce MADV_COLD")

I have reverted (I assume the first four depend on the last):

674db9810e45 ("mm, madvise: factor out common parts between MADV_COLD and MADV_PAGEOUT")
5bd341efe8f1 ("mm, madvise: introduce MADV_PAGEOUT")
c487c618dcf1 ("mm, madvise: account nr_isolated_xxx in [isolate|putback]_lru_page")
1ef762b1c799 ("mm, madvise: change PAGEREF_RECLAIM_CLEAN with PAGE_REFRECLAIM")
d6d92199f211 ("mm, madvise: introduce MADV_COLD")

for today (as - I just noticed - is suggested in another email).

--
Cheers,
Stephen Rothwell
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