On 1/30/14, 11:38 PM, Theodore Ts'o wrote: > I've been reading the draft ZBC specifications, especially 14-010r1[1], > and I've created the following draft kernel interfaces, which I present > as a strawman proposal for comments. > > [1] http://www.t10.org/cgi-bin/ac.pl?t=d&f=14-010r1.pdf > > As noted in the comments below, supporting variable length SMR zones > does result in more complexity at the file system / userspace interface > layer. Life would certainly get simpler if these zones were fixed > length. Hi Ted - Just to flesh out the context for these a bit, what do you envision as the consumer of these interfaces? Things in the block layer? A DM target? Existing filesystems? A new filesystem? I suppose we'll need an interface similar to this at whatever layer has to deal with it. I've got my own opinions on where we might handle it (IMHO, retrofitting 3 or 4 major filesystems sounds like more than really want to take on), but it'd be nice to know what you're thinking here. Thanks, -Eric -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html