On Fri, Jun 07, 2013 at 08:41:52AM -0600, Stefan Behrens wrote: > On 06/07/2013 16:39, Josef Bacik wrote: > > 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, > > That's what the patch 7/8 is doing. > Yeah I just noticed that, 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
