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    SubjectRe: [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix
    On Mon, 2 Jun 2014, Vlastimil Babka wrote:

    > compact_should_abort() returns true instead of false and vice versa
    > due to changes between v1 and v2 of the patch. This makes both async
    > and sync compaction abort with high probability, and has been reported
    > to cause e.g. soft lockups on some ARM boards, or drivers calling
    > dma_alloc_coherent() fail to probe with CMA enabled on different boards.
    >
    > This patch fixes the return value to match comments and callers expecations.
    >
    > Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
    > Reported-and-tested-by: Shawn Guo <shawn.guo@linaro.org>
    > Tested-by: Stephen Warren <swarren@nvidia.com>
    > Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

    Acked-by: David Rientjes <rientjes@google.com>


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