On Tue, Oct 15, 2019 at 04:35:48AM -0700, Matthew Wilcox wrote: > On Tue, Oct 15, 2019 at 01:38:27PM +0900, Naohiro Aota wrote: > > A zoned block device consists of a number of zones. Zones are > > eitherconventional and accepting random writes or sequential and > > requiringthat writes be issued in LBA order from each zone write > > pointerposition. For the write restriction, zoned block devices are > > notsuitable for a swap device. Disallow swapon on them. > > That's unfortunate. I wonder what it would take to make the swap code be > suitable for zoned devices. It might even perform better on conventional > drives since swapout would be a large linear write. Swapin would be a > fragmented, seeky set of reads, but this would seem like an excellent > university project. Also maybe a great Outreachy or GSOC project?
