From 5aea3dcd50215fa9563270251ad7323e2f2490ee Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 28 Apr 2016 16:07:26 +0200 Subject: libceph: a major OSD client update This is a major sync up, up to ~Jewel. The highlights are: - per-session request trees (vs a global per-client tree) - per-session locking (vs a global per-client rwlock) - homeless OSD session - no ad-hoc global per-client lists - support for pool quotas - foundation for watch/notify v2 support - foundation for map check (pool deletion detection) support The switchover is incomplete: lingering requests can be setup and teared down but aren't ever reestablished. This functionality is restored with the introduction of the new lingering infrastructure (ceph_osd_linger_request, linger_work, etc) in a later commit. Signed-off-by: Ilya Dryomov --- include/linux/ceph/osd_client.h | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index 486d681694c4..342f22f1f040 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -33,12 +33,13 @@ struct ceph_osd { int o_incarnation; struct rb_node o_node; struct ceph_connection o_con; - struct list_head o_requests; + struct rb_root o_requests; struct list_head o_linger_requests; struct list_head o_osd_lru; struct ceph_auth_handshake o_auth; unsigned long lru_ttl; struct list_head o_keepalive_item; + struct mutex lock; }; #define CEPH_OSD_SLAB_OPS 2 @@ -144,8 +145,6 @@ struct ceph_osd_request_target { struct ceph_osd_request { u64 r_tid; /* unique for this client */ struct rb_node r_node; - struct list_head r_req_lru_item; - struct list_head r_osd_item; struct list_head r_linger_item; struct list_head r_linger_osd_item; struct ceph_osd *r_osd; @@ -219,19 +218,16 @@ struct ceph_osd_client { struct ceph_client *client; struct ceph_osdmap *osdmap; /* current map */ - struct rw_semaphore map_sem; + struct rw_semaphore lock; - struct mutex request_mutex; struct rb_root osds; /* osds */ struct list_head osd_lru; /* idle osds */ spinlock_t osd_lru_lock; - u64 last_tid; /* tid of last request */ - struct rb_root requests; /* pending requests */ - struct list_head req_lru; /* in-flight lru */ - struct list_head req_unsent; /* unsent/need-resend queue */ - struct list_head req_notarget; /* map to no osd */ struct list_head req_linger; /* lingering requests */ - int num_requests; + struct ceph_osd homeless_osd; + atomic64_t last_tid; /* tid of last request */ + atomic_t num_requests; + atomic_t num_homeless; struct delayed_work timeout_work; struct delayed_work osds_timeout_work; #ifdef CONFIG_DEBUG_FS -- cgit v1.2.3-71-gd317