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    x86: Fix hwpoison code related build failure on 32-bit NUMAQ · d949f36f
    Linus Torvalds 提交于
    This build failure triggers:
    
     In file included from include/linux/suspend.h:8,
                     from arch/x86/kernel/asm-offsets_32.c:11,
                     from arch/x86/kernel/asm-offsets.c:2:
     include/linux/mm.h:503:2: error: #error SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS
    
    Because due to the hwpoison page flag we ran out of page
    flags on 32-bit.
    
    Dont turn on hwpoison on 32-bit NUMA (it's rare in any
    case).
    
    Also clean up the Kconfig dependencies in the generic MM
    code by introducing ARCH_SUPPORTS_MEMORY_FAILURE.
    Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: NIngo Molnar <mingo@elte.hu>
    d949f36f
Kconfig 66.4 KB