On Thu, Nov 03, 2022 at 02:51:10PM +0000, David Howells wrote: > > > filesystems right now. Dave Howells' netfs infrastructure is trying > > > to solve the problem for everyone (and he's been looking at iomap as > > > inspiration for what he's doing). > > > > Btw, I never understod why the network file systems don't just use > > iomap. There is nothing block specific in the core iomap code. > > It calls creates and submits bio structs all over the place. This seems to > require a blockdev. The core iomap code (fs/iomap/iter.c) does not. Most users of it are block device centric right now, but for example the dax.c uses iomap for byte level DAX accesses without ever looking at a bdev, and seek.c and fiemap.c do not make any assumptions on the backend implementation.
