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| author | Ilya Dryomov <idryomov@gmail.com> | 2016-04-28 17:07:26 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-26 02:14:03 +0300 |
| commit | 5aea3dcd50215fa9563270251ad7323e2f2490ee (patch) | |
| tree | 1bcaaf4d5ff7b443c3776af771b228a5fad903b0 /include/linux | |
| parent | 9dd2845ccb40452d4ac943231ea34aade4a02c68 (diff) | |
| download | linux-5aea3dcd50215fa9563270251ad7323e2f2490ee.tar.xz | |
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 <idryomov@gmail.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ceph/osd_client.h | 18 |
1 files changed, 7 insertions, 11 deletions
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 |