On Mon, Sep 14, 2009 at 03:55:39PM -0400, Michel Alexandre Salim wrote: > Hello, > > It is my understanding that currently, the only difference between > subvolumes and snapshots are that snapshots share a root with an > existing tree, while subvolumes start off empty. > > There is an interesting use case difference, though: because a > subvolume by definition cannot share data with other subvolumes, that > frees it up to being mounted with different options (e.g. nodatasum, > nodatacow). > > The reason I'm wondering is that I just switched my home directory to > btrfs, and one of my machine is often used for rebuilding RPMs (for > initial testing, before getting it built on a build server). The data > is never kept for a long time, and so checksumming and COW would just > slow things down. > > Would this be possible, and if so, is it planned for implementation by 1.0? It would be possible, and long term we plan on storing a number of options directly in the root so that you don't have to keep doing mount -o foo. -chris -- 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
