On 12/11/18 5:08 AM, Shin'ichiro Kawasaki wrote: > null_blk_zoned creation fails if the number of zones specified is equal to or is > smaller than 64 due to a memory allocation failure in blk_alloc_zones(). With > such a small number of zones, the required memory size for all zones descriptors > fits in a single page, and the page order for alloc_pages_node() is zero. Allow > this value in blk_alloc_zones() for the allocation to succeed. Looks good to me, this looks like 4.20 material. -- Jens Axboe
