On Tue, Dec 16, 2008 at 02:37, Chris Mason <chris.mason@xxxxxxxxxx> wrote: > On Mon, 2008-12-15 at 23:55 +0100, Kay Sievers wrote: >> On Mon, Dec 15, 2008 at 22:03, Andreas Dilger <adilger@xxxxxxx> wrote: >> > On Dec 11, 2008 09:43 -0500, Chris Mason wrote: >> >> The multi-device code uses a very simple brute force scan from userland >> >> to populate the list of devices that belong to a given FS. Kay Sievers >> >> has some ideas on hotplug magic to make this less dumb. (The scan isn't >> >> required for single device filesystems). >> > >> > This should use libblkid to do the scanning of the devices, and it can >> > cache the results for efficiency. Best would be to have the same LABEL+UUID >> > for all devices in the same filesystem, and then once any of these devices >> > are found the mount.btrfs code can query the rest of the devices to find >> > the remaining parts of the filesystem. >> >> Which is another way to do something you should not do that way in the >> first place, just with a library instead of your own code. >> > > Well, its the same library everyone else is using to do things they > shouldn't be doing ;) Util-linux-ng can be configured to use libvolume_id and udev data, and it's not used in SUSE and Ubuntu for exactly the reason mentioned. :) Kay -- 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
