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YueHaibing authored
get_user_pages_fast() will return negative value if no pages were pinned, then be converted to a unsigned, which is compared to zero, giving the wrong result. Link: http://lkml.kernel.org/r/20180921095015.26088-1-yuehaibing@huawei.com Fixes: 09e35a4a ("mm/gup_benchmark: handle gup failures") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Reviewed-by:
Andrew Morton <akpm@linux-foundation.org> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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