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| author | Ilya Dryomov <idryomov@gmail.com> | 2016-04-28 16:07:26 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-26 01:12:30 +0200 |
| commit | 9dd2845ccb40452d4ac943231ea34aade4a02c68 (patch) | |
| tree | d7c5be5f87c642b45a92eec573a657207b27b899 /include/linux/ceph | |
| parent | 7a28f59bf9fb220cdf56ac6ab539fc4a0ae59414 (diff) | |
| download | lwn-9dd2845ccb40452d4ac943231ea34aade4a02c68.tar.gz lwn-9dd2845ccb40452d4ac943231ea34aade4a02c68.zip | |
libceph: protect osdc->osd_lru list with a spinlock
OSD client is getting moved from the big per-client lock to a set of
per-session locks. The big rwlock would only be held for read most of
the time, so a global osdc->osd_lru needs additional protection.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include/linux/ceph')
| -rw-r--r-- | include/linux/ceph/osd_client.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index 2415dc0cb008..486d681694c4 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -224,6 +224,7 @@ struct ceph_osd_client { 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 */ |