From 1cc1f17aab7e596d0a7373fc1ed11dbddfa82bc9 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 20 Apr 2017 15:47:01 -0400 Subject: 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: Josef Bacik Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/block/nbd.c') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index d387bef07fcc..5583dc4ff941 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -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; -- cgit 1.4.1