This patch implements cephfs quota support. Currently, the quota is implemented at directory level. Some key designs behind, 1 Quota is get/set by extend attribute interfrace; 2 QuotaTree is used to buffer quota at client side, and it is lazily reconstructed if directory hierarchy changed; 3 Quota update is synchronized within mds cluster by PolicyLock; 4 New rstat as well as quota are pushed to all related clients by auth mds, prior to that, MGatherCaps message is used to collect information of clients from other mds; 5 Quota is pushed to client within the reply to readdir request; 6 Old mds without quota support is shut down; 7 Moving files across quota trees are forbidden if quota enabled. Review at: https://github.com/ceph/ceph/pull/1122 Pull at: https://github.com/kylinstorage/ceph.git wip-cephfs-quota Signed-off-by: Yunchuan Wen <yunchuanwen@xxxxxxxxxxxxxxx> Signed-off-by: Li Wang <liwang@xxxxxxxxxxxxxxx> --- Yunchuan Wen (25): ceph: Add quota feature flags ceph: Add quota_info_t to store quota info mds: Add quota field to inode_t mds: Shutdown old mds without quota support mds: Handle quota update ceph: Add MClientQuota message type ceph: Add MGatherCaps message type mds: Push quota info to client by MClientReply mds: Export cap to auth mds when mds handle MGatherCaps mds: Add broadcast_quota_to_client routine mds: Push new rstat and quota info to client client: Add class QuotaTree type client: Add quota field to Inode client: Get root's parents inode when mount -r used client: Add quota config to config_opts.h client: Add QuotaTree functions client: Handle getxattr to show quota information client: Handle listxattr to show quota and qstat attributes client: Update qtree when fs tree changed client: Handle MClientQuota to update quota information client: Add helper for quota check client: Enforce quota check when creating new file client: Forbid moving files across quota trees client: Enforce quota check when changing file size client: Inform mds file size when approaching quota limit src/ceph_mds.cc | 3 +- src/client/Client.cc | 325 ++++++++++++++++++++++++++++++++++++++++--- src/client/Client.h | 9 ++ src/client/Inode.cc | 3 + src/client/Inode.h | 79 +++++++++++ src/common/config_opts.h | 2 + src/include/ceph_features.h | 2 + src/include/ceph_fs.h | 1 + src/mds/CInode.cc | 10 ++ src/mds/Capability.h | 1 + src/mds/MDCache.cc | 40 ++++++ src/mds/MDCache.h | 1 + src/mds/MDS.h | 3 + src/mds/MDSMap.cc | 1 + src/mds/MDSMap.h | 1 + src/mds/Migrator.cc | 24 ++++ src/mds/Migrator.h | 3 + src/mds/Server.cc | 71 +++++++++- src/mds/Server.h | 1 + src/mds/mdstypes.cc | 16 ++- src/mds/mdstypes.h | 31 +++++ src/messages/MClientQuota.h | 50 +++++++ src/messages/MClientReply.h | 6 + src/messages/MGatherCaps.h | 32 +++++ src/messages/Makefile.am | 2 + src/msg/Message.cc | 8 ++ src/msg/Message.h | 1 + 27 files changed, 700 insertions(+), 26 deletions(-) create mode 100644 src/messages/MClientQuota.h create mode 100644 src/messages/MGatherCaps.h -- 1.7.9.5 -- 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
