G'day, Sage's recent pull message to Linus said: ---- Please pull the following Ceph patches from git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git for-linus This is a big pull. Most of it is culmination of Alex's work to implement RBD image layering, which is now complete (yay!). ---- Am I correct in thinking "RBD image layering... is now complete" implies there should be full(?) support for format=2? I pulled the for-linus branch (@ 3abef3b) on top of 3.10.0-rc4, and it's letting me map a format=2 image (created under bobtail), however reading from the block device returns zeros rather than the data. The same image correctly shows data (NTFS filesystem) when mounted into kvm using librbd. ---- # uname -r 3.10.0-rc4-00010-g0326739 # rbd ls -l NAME SIZE PARENT FMT PROT LOCK xxx 1536G 2 # rbd map rbd/xxx # rbd showmapped id pool image snap device 1 rbd xxx - /dev/rbd1 # dd if=/dev/rbd1 of=/tmp/xxx count=20480 20480+0 records in 20480+0 records out 10485760 bytes (10 MB) copied, 0.757754 s, 13.8 MB/s # od -c /tmp/xxx | less 0000000 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 * 50000000 ---- Cheers, Chris -- 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
