On Mon, 05 Jan 2009 09:14:56 -0500, Chris Mason <chris.mason@xxxxxxxxxx> wrote: > On Sat, 2009-01-03 at 18:44 +0900, Ryusuke Konishi wrote: > > On Fri, 02 Jan 2009 14:38:07 -0500, Chris Mason > > > > Btrfs seems to have other helpful code including pages/bio compression > > which may become separable, too. And, this may be the same for > > pages/bio encryption/decryption code which would come next. (I don't > > mention about the volume management/raid feature here to avoid getting > > off the subject, but it's likewise). > > > > The compression code is somewhat tied to the btrfs internals, but it > could be pulled out without too much trouble. The big question there is > if other filesystems are interested in transparent compression support. It was so attractive to me ;) though I don't know if it's applicable. Anyway, making this common can be said to be the exercise of someone who try to reuse it, and I don't adhere to it in order not to get off the subject. Just I wanted to add presence of other candicates. > But, at the end of the day, most of the work is still done by the zlib > code. The btrfs bits just organize pages to send down to zlib. > > -chris Yes, but that's the interesting point; it provides ways to apply compression through array of pages, or bio - I like it. Ryusuke -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
