On Fri, Jun 07, 2013 at 04:27:51AM -0600, Stefan Behrens wrote: > In order to be able to detect the case that a filesystem is mounted > with an old kernel, add a uuid-tree-gen field like the free space > cache is doing it. It is part of the super block and written with > each commit. Old kernels do not know this field and don't update it. > So to get around the whole crashing before we finish creating the uuid tree maybe set some flag or something that doesn't actually set the super->uuid_tree_generation until _after_ it finishes populating the tree, and then have the scan deal with having a half populated tree. Just an idea, but we have to deal with it some way. Thanks, Josef -- 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
