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| author |   Yan, Zheng <zyan@redhat.com> | 2015-01-09 17:00:42 +0800 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2015-02-19 13:31:38 +0300 |
| commit | 86d8f67b26a8b30228b5177b7e594bbc89798a23 (patch) | |
| tree | 8d2c95e94f1718806d0aed91854394ec5cfabe5b /fs/ceph/mds_client.h | |
| parent | ceph: avoid block operation when !TASK_RUNNING (ceph_get_caps) (diff) | |
| download | linux-dev-86d8f67b26a8b30228b5177b7e594bbc89798a23.tar.xz linux-dev-86d8f67b26a8b30228b5177b7e594bbc89798a23.zip | |
ceph: avoid block operation when !TASK_RUNNING (ceph_mdsc_close_sessions)
use an atomic variable to track number of sessions, this can avoid block
operation inside wait loops.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/mds_client.h')
| -rw-r--r-- | fs/ceph/mds_client.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index a87b92f500bb..1875b5d985c6 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -273,6 +273,7 @@ struct ceph_mds_client { struct list_head waiting_for_map; struct ceph_mds_session **sessions; /* NULL for mds if no session */ + atomic_t num_sessions; int max_sessions; /* len of s_mds_sessions */ int stopping; /* true if shutting down */ |