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linux

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    Alexander Duyck authored and Linus Torvalds committed
    This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
    avoid invoking cache line invalidation if the driver will just handle it
    via a sync_for_cpu or sync_for_device call.
    
    Link: http://lkml.kernel.org/r/20161110113524.76501.87966.stgit@ahduyck-blue-test.jf.intel.com
    
    
    Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
    Cc: Jonas Bonn <jonas@southpole.se>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    043b42bc
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