On Thursday 18 February 2010, Chris Mason wrote: > On Thu, Feb 18, 2010 at 12:46:56PM -0800, Mike Fedyk wrote: > > On Thu, Feb 18, 2010 at 11:59 AM, Goffredo Baroncelli > > <kreijack@xxxxxxxxx> wrote: > > > On Thursday 18 February 2010, Chris Mason wrote: > > >> I do like the subcommand method, more details below. > > >> > > > > > > I try to summarise your suggestions. But there are some cases not to clear for > > > me. > > > I grouped the commands in three categories: subvolume, devices, and > > > filesystem. > > > > > > > > > devices scan > > > devices show > > > devices balance > > > devices add > > > devices remove > > > > > > subvolume snapshot > > > subvolume delete > > > subvolume create > > > [subvolume list] > > > > > > filesystem resize > > > [filesystem label] > > > > > > ??? defrag > > > ??? sync > > > > > > > > > > > > For the first two categories both Chris and Mike agreed; but IMHO there are > > > some commands that don't fit nor in devices, nor subvolume, like resize (we > > > resize a filesystem) and label (not available now). > > > > > > > A btrfs filesystem can span multiple devices. Resize resizes how big > > of a chunk of one device btrfs uses. > > Right, resize is actually always per device. When there is one device > resizing the FS and the device are the same thing. > > > This would be used by > > partitioning programs for instance. zfs uses the term "pool" instead > > of filesystem to solve this ambiguous use of the term "filesystem" > > since btrfs and zfs break people's existing definition of the word > > "filesystem". > > > > > I don't know how classify defrag (per file / directory level ?) and sync > > > (filesystem ?) > > > > It turns out that defrag is per file, which seems most cumbersome. > > Maybe since it will probably eventually work against several types of > > objects we could have: > > > > btrfs defrag file <file> > > btrfs defrag directory <directory> > > btrfs defrag subvol <subvol> > > I like these, although we don't currently support the directory/subvol > side. But we can leave the option open to add these later. Sorry, but why: $ btrfs defrag subvol and not $ btrfs subvol defrag What do you want: $ btrfs <object> <action> or $ btrfs <action> <object> -- gpg key@ keyserver.linux.it: Goffredo Baroncelli (ghigo) <kreijack@xxxxxxxxx> Key fingerprint = 4769 7E51 5293 D36C 814E C054 BF04 F161 3DC5 0512 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
