It's more elegant to use UINT_MAX to represent the max value of
type unsigned int. So replace the actual value by using this define.
Signed-off-by: Minfei Huang <mnghuan@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
 
        ns->queue->limits.discard_alignment = logical_block_size;
        ns->queue->limits.discard_granularity = logical_block_size;
-       blk_queue_max_discard_sectors(ns->queue, 0xffffffff);
+       blk_queue_max_discard_sectors(ns->queue, UINT_MAX);
        queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, ns->queue);
 }