Am 08.12.2014 um 12:26 schrieb Stephen Rothwell:
> Hi Christian,
>
> After merging the acess_once tree, today's linux-next build (powerpc
> allnoconfig) failed like this:
>
> arch/powerpc/mm/hugetlbpage.c: In function 'find_linux_pte_or_hugepte':
> arch/powerpc/mm/hugetlbpage.c:981:3: error: invalid initializer
> pud = ACCESS_ONCE(*pudp);
> ^
> arch/powerpc/mm/hugetlbpage.c:993:4: error: invalid initializer
> pmd = ACCESS_ONCE(*pmdp);
> ^
>
> These are preexisting ...
>
> mm/gup.c: In function 'gup_pmd_range':
> mm/gup.c:929:3: error: invalid initializer
> pmd_t pmd = ACCESS_ONCE(*pmdp);
> ^
> mm/gup.c:929:3: error: (near initialization for 'pmd')
>
> This is from commit f30c59e921f1 ("mm: Update generic gup
> implementation to handle hugepage directory") from the powerpc-mpe (and
> powerpc) tree and so will require a merge fix patch (presumable
> s/ACCESS_ONCE/READ_ONCE/).
>
> I am not sure how many architectures you are trying to cover, but
> powerpc is one I care about :-)
>
> I have dropped the access_once tree again today, sorry (its too late at
> night).
>
Next try. I removed the change of ACCESS_ONCE and just left the new interfaces and the simple reworks in the queue.
I will tackle everything else after rc1 when next should be small again. Keeping fingers crossed....
Christian
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