On mer, 2005-04-20 at 12:13 +0200, Lars Marowsky-Bree wrote: > On 2005-04-19T23:55:55, christophe varoqui <christophe.varoqui@xxxxxxx> wrote: > > > > > For example, /sys/block/sda would have a sub/ directory with "dm-0" in > > > > there, pointing at /sys/block/dm-0 (surprise). The > > > > /sys/block/dm-0/parent/sd{a,b} entries would do a very surprising > > > > thing. > > > > > > > > This would also allow us to handle partitions in DM better: as all > > > > linear mappings on top of /dev/dm-0 would show up in block/dm-0/sub/ and > > > > vice versa. > > > > > > > > md could work the same: block/sys/md0/parent/ would list all the devices > > > > (or partitions) which it consists of. > > > > > > Regardless of the implementation, am I the only one to think that > > dm-0/parent/ should contain "parents of dm-0" ? :) > > I thought that was exactly what I was proposing. > I mean the following would be more friendly to me. /sys/block/sda/parent/dm-0 /sys/block/sdb/parent/dm-0 /sys/block/dm-0/sub/sd[ab] In your proposed example, "parent" in fact means "parents of" and "sub" means "sub of" ... which I find misleading. But may be that's just me :) Regards, -- christophe varoqui <christophe.varoqui@xxxxxxx>