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Commit 1cc1f17a authored by Josef Bacik's avatar Josef Bacik Committed by Jens Axboe
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nbd: set the max segments to USHRT_MAX 



I lack the basic understanding of what segments mean, so we were being
limited to 512kib requests even with higher max_sectors sizes set.
Setting the maximum number of segments to unlimited allows us to
actually have arbitrarily large IO's go through NBD.

Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 246665db

drivers/block/nbd.c

+1 −0
Original line number Diff line number Diff line
@@ -1470,6 +1470,7 @@ static int nbd_dev_add(int index) 
	disk->queue->limits.discard_granularity = 512;

	blk_queue_max_discard_sectors(disk->queue, UINT_MAX);

	blk_queue_max_segment_size(disk->queue, UINT_MAX);

	blk_queue_max_segments(disk->queue, USHRT_MAX);

	blk_queue_max_hw_sectors(disk->queue, 65536);

	disk->queue->limits.max_sectors = 256;