On Sun, Jan 4, 2015 at 6:11 AM, Rolf Fokkens <rolf@xxxxxxxxxxxxxx> wrote: > Please let us know when this will be pushed to the kernel, do you have any > thoughts on the planning of this? > > As a bcache-tools packager for Fedora I think I should add some package > dependencies which prevent users from accidentally upgrading to that > (breaking) version in the future. The plan is to incrementally backport bug fixes and optimizations from bcache-dev to upstream for the foreseeable future. The development branch is going through major changes to support dynamically adding/removing cache devices and storing data in the btree instead of using it as a cache, enabling usage without any backing devices. We're actively working on this code and doing a lot of stress testing of both the new stuff and backing device support. However, it's its too early to tell what the new features will look like by the time they're ready to go upstream, or what a transition plan will look like for existing installs. I wish we had more time for upstreaming stuff, but I can assure you its not Kent's intent to just dump bcache-dev as one huge pull request :-) > > It may also affect other tools like util-linux: > https://github.com/karelzak/util-linux/blob/master/libblkid/src/superblocks/bcache.c > > Furthermore I think I should postpone integration of bcache in the Fedora > installer until further notice: > https://bugzilla.redhat.com/show_bug.cgi?id=1003208 > > Any information in advance is appreciated. > > Rolf > > > On 01/04/2015 01:46 AM, Kent Overstreet wrote: >> >> Yes, correct. The on disk format changes in bcache-dev are just too deep >> to feasibly write backwards compat code, unfortunately. And the on disk >> format is still in flux - for just a bit longer hopefully though, right now >> I'm working on a pretty major revamp that's getting close to done (self >> describing and packed metadata). This revamp is making the on disk format >> _much_ more flexible though, and cleaning up a lot of stuff at the same >> time. > > -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
