blk-mq: user (1 << order) to implement order_to_size()
Cc: Jörg-Volker Peetz <jvpeetz@web.de> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -1130,12 +1130,7 @@ static void blk_mq_free_rq_map(struct blk_mq_tag_set *set,
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static size_t order_to_size(unsigned int order)
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{
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size_t ret = PAGE_SIZE;
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while (order--)
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ret *= 2;
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return ret;
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return (size_t)PAGE_SIZE << order;
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}
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static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set,
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