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    [PATCH] EDAC: atomic scrub operations · 715b49ef
    Alan Cox 提交于
    EDAC requires a way to scrub memory if an ECC error is found and the chipset
    does not do the work automatically.  That means rewriting memory locations
    atomically with respect to all CPUs _and_ bus masters.  That means we can't
    use atomic_add(foo, 0) as it gets optimised for non-SMP
    
    This adds a function to include/asm-foo/atomic.h for the platforms currently
    supported which implements a scrub of a mapped block.
    
    It also adjusts a few other files include order where atomic.h is included
    before types.h as this now causes an error as atomic_scrub uses u32.
    Signed-off-by: NAlan Cox <alan@redhat.com>
    Signed-off-by: NAndrew Morton <akpm@osdl.org>
    Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
    715b49ef
kcopyd.c 13.2 KB