Hi, The rados block device (rbd) implements a network block device backed by the Ceph distributed object store (think nbd/iSCSI, but distributed and fault tolerant). At the suggestion of Christoph and James, this version of the patchset factors out the common Ceph bits (the network protocol, cluster membership, and object storage parts) into a libceph module (currently in net/ceph/ and include/linux/ceph/) that is shared by the file system component (fs/ceph) and rbd (drivers/block/rbd.c). The first few patches lay some groundwork, #7 moves does the ceph -> libceph+ceph split, and #8 adds the block device driver. The block device code has been in linux-next for a while, but it could use some review by someone more familiar with the block layer. The rbd code is originally based on osdblk, and has a similar sysfs interface (rbd also supports snapshots, so there are a few more knobs for that). Two questions -- 1- Are net/ceph/ and include/linux/ceph/ appropriate locations for the libceph code? (It seemed more similar to other net/ residents than the stuff in lib/.) 2- Do I need an explicit ACK from any block people before sending this to Linus? Carrying/rebasing the refactoring patch out of tree will be tedious, so I would like to push it sooner rather than later. Thanks! sage PS This code is also available in git at git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git rbd --- Sage Weil (1): ceph: factor out libceph from Ceph file system Yehuda Sadeh (7): ceph-rbd: lookup pool in osdmap by name ceph-rbd: refactor osdc requests creation functions ceph-rbd: messenger and osdc changes for rbd ceph-rbd: enable creation of clients that don't need mds ceph-rbd: refactor mount related functions, add helpers ceph-rbd: osdc support for osd call and rollback operations rbd: introduce rados block device (rbd), based on libceph MAINTAINERS | 11 + drivers/block/Kconfig | 13 + drivers/block/Makefile | 1 + drivers/block/rbd.c | 1844 ++++++++++++++++++++++++++++ drivers/block/rbd_types.h | 73 ++ fs/ceph/Kconfig | 14 +- fs/ceph/Makefile | 11 +- fs/ceph/README | 20 - fs/ceph/addr.c | 65 +- fs/ceph/armor.c | 103 -- fs/ceph/auth.c | 259 ---- fs/ceph/auth.h | 92 -- fs/ceph/auth_none.c | 131 -- fs/ceph/auth_none.h | 30 - fs/ceph/auth_x.c | 684 ----------- fs/ceph/auth_x.h | 49 - fs/ceph/auth_x_protocol.h | 90 -- fs/ceph/buffer.c | 65 - fs/ceph/buffer.h | 39 - fs/ceph/caps.c | 35 +- fs/ceph/ceph_debug.h | 37 - fs/ceph/ceph_frag.c | 3 +- fs/ceph/ceph_frag.h | 109 -- fs/ceph/ceph_fs.c | 72 -- fs/ceph/ceph_fs.h | 728 ----------- fs/ceph/ceph_hash.c | 118 -- fs/ceph/ceph_hash.h | 13 - fs/ceph/ceph_strings.c | 193 --- fs/ceph/crush/crush.c | 151 --- fs/ceph/crush/crush.h | 180 --- fs/ceph/crush/hash.c | 149 --- fs/ceph/crush/hash.h | 17 - fs/ceph/crush/mapper.c | 609 --------- fs/ceph/crush/mapper.h | 20 - fs/ceph/crypto.c | 412 ------- fs/ceph/crypto.h | 48 - fs/ceph/debugfs.c | 407 ++----- fs/ceph/decode.h | 196 --- fs/ceph/dir.c | 55 +- fs/ceph/export.c | 5 +- fs/ceph/file.c | 207 +--- fs/ceph/inode.c | 19 +- fs/ceph/ioctl.c | 11 +- fs/ceph/locks.c | 6 +- fs/ceph/mds_client.c | 85 +- fs/ceph/mds_client.h | 20 +- fs/ceph/mdsmap.c | 11 +- fs/ceph/mdsmap.h | 62 - fs/ceph/messenger.c | 2277 ---------------------------------- fs/ceph/messenger.h | 253 ---- fs/ceph/mon_client.c | 1018 --------------- fs/ceph/mon_client.h | 121 -- fs/ceph/msgpool.c | 64 - fs/ceph/msgpool.h | 25 - fs/ceph/msgr.h | 175 --- fs/ceph/osd_client.c | 1539 ----------------------- fs/ceph/osd_client.h | 167 --- fs/ceph/osdmap.c | 1110 ----------------- fs/ceph/osdmap.h | 128 -- fs/ceph/pagelist.c | 55 - fs/ceph/pagelist.h | 54 - fs/ceph/rados.h | 405 ------ fs/ceph/snap.c | 10 +- fs/ceph/strings.c | 117 ++ fs/ceph/super.c | 1154 +++++++---------- fs/ceph/super.h | 397 +++---- fs/ceph/types.h | 29 - fs/ceph/xattr.c | 15 +- include/linux/ceph/auth.h | 92 ++ include/linux/ceph/buffer.h | 39 + include/linux/ceph/ceph_debug.h | 37 + include/linux/ceph/ceph_frag.h | 109 ++ include/linux/ceph/ceph_fs.h | 728 +++++++++++ include/linux/ceph/ceph_hash.h | 13 + include/linux/ceph/crush/crush.h | 180 +++ include/linux/ceph/crush/hash.h | 17 + include/linux/ceph/crush/mapper.h | 20 + include/linux/ceph/debugfs.h | 33 + include/linux/ceph/decode.h | 201 +++ include/linux/ceph/libceph.h | 249 ++++ include/linux/ceph/mdsmap.h | 62 + include/linux/ceph/messenger.h | 261 ++++ include/linux/ceph/mon_client.h | 122 ++ include/linux/ceph/msgpool.h | 25 + include/linux/ceph/msgr.h | 175 +++ include/linux/ceph/osd_client.h | 234 ++++ include/linux/ceph/osdmap.h | 130 ++ include/linux/ceph/pagelist.h | 54 + include/linux/ceph/rados.h | 405 ++++++ include/linux/ceph/types.h | 29 + net/Kconfig | 1 + net/Makefile | 1 + net/ceph/Kconfig | 27 + net/ceph/Makefile | 37 + net/ceph/armor.c | 103 ++ net/ceph/auth.c | 259 ++++ net/ceph/auth_none.c | 132 ++ net/ceph/auth_none.h | 29 + net/ceph/auth_x.c | 685 +++++++++++ net/ceph/auth_x.h | 50 + net/ceph/auth_x_protocol.h | 90 ++ net/ceph/buffer.c | 68 + net/ceph/ceph_common.c | 529 ++++++++ net/ceph/ceph_fs.c | 75 ++ net/ceph/ceph_hash.c | 118 ++ net/ceph/ceph_strings.c | 84 ++ net/ceph/crush/crush.c | 151 +++ net/ceph/crush/hash.c | 149 +++ net/ceph/crush/mapper.c | 609 +++++++++ net/ceph/crypto.c | 412 +++++++ net/ceph/crypto.h | 48 + net/ceph/debugfs.c | 268 ++++ net/ceph/messenger.c | 2453 +++++++++++++++++++++++++++++++++++++ net/ceph/mon_client.c | 1027 ++++++++++++++++ net/ceph/msgpool.c | 64 + net/ceph/osd_client.c | 1773 +++++++++++++++++++++++++++ net/ceph/osdmap.c | 1128 +++++++++++++++++ net/ceph/pagelist.c | 57 + net/ceph/pagevec.c | 223 ++++ 119 files changed, 16847 insertions(+), 13703 deletions(-) create mode 100644 drivers/block/rbd.c create mode 100644 drivers/block/rbd_types.h delete mode 100644 fs/ceph/README delete mode 100644 fs/ceph/armor.c delete mode 100644 fs/ceph/auth.c delete mode 100644 fs/ceph/auth.h delete mode 100644 fs/ceph/auth_none.c delete mode 100644 fs/ceph/auth_none.h delete mode 100644 fs/ceph/auth_x.c delete mode 100644 fs/ceph/auth_x.h delete mode 100644 fs/ceph/auth_x_protocol.h delete mode 100644 fs/ceph/buffer.c delete mode 100644 fs/ceph/buffer.h delete mode 100644 fs/ceph/ceph_debug.h delete mode 100644 fs/ceph/ceph_frag.h delete mode 100644 fs/ceph/ceph_fs.c delete mode 100644 fs/ceph/ceph_fs.h delete mode 100644 fs/ceph/ceph_hash.c delete mode 100644 fs/ceph/ceph_hash.h delete mode 100644 fs/ceph/ceph_strings.c delete mode 100644 fs/ceph/crush/crush.c delete mode 100644 fs/ceph/crush/crush.h delete mode 100644 fs/ceph/crush/hash.c delete mode 100644 fs/ceph/crush/hash.h delete mode 100644 fs/ceph/crush/mapper.c delete mode 100644 fs/ceph/crush/mapper.h delete mode 100644 fs/ceph/crypto.c delete mode 100644 fs/ceph/crypto.h delete mode 100644 fs/ceph/decode.h delete mode 100644 fs/ceph/mdsmap.h delete mode 100644 fs/ceph/messenger.c delete mode 100644 fs/ceph/messenger.h delete mode 100644 fs/ceph/mon_client.c delete mode 100644 fs/ceph/mon_client.h delete mode 100644 fs/ceph/msgpool.c delete mode 100644 fs/ceph/msgpool.h delete mode 100644 fs/ceph/msgr.h delete mode 100644 fs/ceph/osd_client.c delete mode 100644 fs/ceph/osd_client.h delete mode 100644 fs/ceph/osdmap.c delete mode 100644 fs/ceph/osdmap.h delete mode 100644 fs/ceph/pagelist.c delete mode 100644 fs/ceph/pagelist.h delete mode 100644 fs/ceph/rados.h create mode 100644 fs/ceph/strings.c delete mode 100644 fs/ceph/types.h create mode 100644 include/linux/ceph/auth.h create mode 100644 include/linux/ceph/buffer.h create mode 100644 include/linux/ceph/ceph_debug.h create mode 100644 include/linux/ceph/ceph_frag.h create mode 100644 include/linux/ceph/ceph_fs.h create mode 100644 include/linux/ceph/ceph_hash.h create mode 100644 include/linux/ceph/crush/crush.h create mode 100644 include/linux/ceph/crush/hash.h create mode 100644 include/linux/ceph/crush/mapper.h create mode 100644 include/linux/ceph/debugfs.h create mode 100644 include/linux/ceph/decode.h create mode 100644 include/linux/ceph/libceph.h create mode 100644 include/linux/ceph/mdsmap.h create mode 100644 include/linux/ceph/messenger.h create mode 100644 include/linux/ceph/mon_client.h create mode 100644 include/linux/ceph/msgpool.h create mode 100644 include/linux/ceph/msgr.h create mode 100644 include/linux/ceph/osd_client.h create mode 100644 include/linux/ceph/osdmap.h create mode 100644 include/linux/ceph/pagelist.h create mode 100644 include/linux/ceph/rados.h create mode 100644 include/linux/ceph/types.h create mode 100644 net/ceph/Kconfig create mode 100644 net/ceph/Makefile create mode 100644 net/ceph/armor.c create mode 100644 net/ceph/auth.c create mode 100644 net/ceph/auth_none.c create mode 100644 net/ceph/auth_none.h create mode 100644 net/ceph/auth_x.c create mode 100644 net/ceph/auth_x.h create mode 100644 net/ceph/auth_x_protocol.h create mode 100644 net/ceph/buffer.c create mode 100644 net/ceph/ceph_common.c create mode 100644 net/ceph/ceph_fs.c create mode 100644 net/ceph/ceph_hash.c create mode 100644 net/ceph/ceph_strings.c create mode 100644 net/ceph/crush/crush.c create mode 100644 net/ceph/crush/hash.c create mode 100644 net/ceph/crush/mapper.c create mode 100644 net/ceph/crypto.c create mode 100644 net/ceph/crypto.h create mode 100644 net/ceph/debugfs.c create mode 100644 net/ceph/messenger.c create mode 100644 net/ceph/mon_client.c create mode 100644 net/ceph/msgpool.c create mode 100644 net/ceph/osd_client.c create mode 100644 net/ceph/osdmap.c create mode 100644 net/ceph/pagelist.c create mode 100644 net/ceph/pagevec.c -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
