Hi Zheng, We have one feature already merged to ceph.git, CRUSH_TUNABLES5, that's a pretty trivial change to crush/mapper.c that we can add to the kernel. But there are two more coming: OSDOPREPLY_ENCODING makes a small change to the OSDOpReply encoding for performance reasons. Here is the PR https://github.com/ceph/ceph/pull/7386 The other is the file layout changes, which are much more invovled: https://github.com/ceph/ceph/pull/7098 Ideally we'd use the same feature bit for all of these, but it means they all need to upstream into Linux together. Do you see a problem with that? Assuming we get it all ready to go before the next merge window.. The tricky bit is we really need to know that we'll be able to do it together before we cut jewel too and commit to the overlapping feature bits. sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
