On Wed, Aug 7, 2013 at 11:48 AM, David Sterba <dste...@suse.cz> wrote: > On Tue, Aug 06, 2013 at 04:05:50PM -0500, Eric Sandeen wrote: >> I was thinking (and Josef just suggested too) that making a >> dir flag, saying "everything under this dir gets compressed" might make >> more sense for that scenario than adding a whole slew of >> on-disk-persistent-mount-option code. > > We have this dir flag stored in the attributes, chattr +c dir/, but this > cannot be tuned further - no way to specify the compression algorithm > (or for example the target ratio as compression hint), or we can't say > "never compress files in this dir (even if mounted with compression)" > etc.
What Eric/Josef suggested, I think I've implemented it in the following RFC: https://patchwork.kernel.org/patch/2840235/ The only thing it doesn't permit, is to disallow compression for individual files or files placed under specific directories. Any idea how would this be specified? (not via chattr I guess) > > david -- Filipe David Manana, "Reasonable men adapt themselves to the world. Unreasonable men adapt the world to themselves. That's why all progress depends on unreasonable men." -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
