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    SubjectRe: [PATCH] [2/16] POISON: Add page flag for poisoned pages
    > > @@ -104,6 +107,9 @@
    > > #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR
    > > PG_uncached, /* Page has been mapped as uncached */
    > > #endif
    > > +#ifdef CONFIG_MEMORY_FAILURE
    >
    > Is it necessary to have this under CONFIG_MEMORY_FAILURE?

    That was mainly so that !MEMORY_FAILURE 32bits NUMA architectures who
    might not use sparsemap/vsparsemap get a few more zone bits in page flags
    to play with. Not sure those really exist, so it might be indeed
    redundant, but it seemed safer.


    -Andi
    --
    ak@linux.intel.com -- Speaking for myself only.


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