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由 Dan Carpenter 提交于
This is just a cleanup patch to silence a static checker warning. The problem is that we cap "nr_iovecs" so it can't be larger than "UIO_MAXIOV" but we don't check for negative values. It turns out this is prevented at other layers, but logically it doesn't make sense to have negative nr_iovecs so making it unsigned is nicer. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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