On 06/19/2012 04:51 PM, Chris Mason wrote: > > At mount time, we go through and verify the path names still belong to > the filesystem you thought they belonged to. The bdev is locked during > the verification, so it won't be able to go away or change. > > This is a long way of saying right we don't spit out device numbers. > Even device numbers can change. We can easily add a uuid based listing, > which I think is what you want. > No, I want to find the actual devices. I know I can get the UUID, but scanning all the block devices in the system looking for that UUID is a nonstarter. Device path names can change while the system is operating (and, worse, are dependent on namespace changes and chroot); device *numbers* cannot as long as the device is in use (e.g. mounted.) They can indeed change while not in use, of course. -hpa -- 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
