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ceph: handle race between cap reconnect and cap release

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When a cap get released while composing the cap reconnect message.
We should skip queuing the release message if the cap hasn't been
added to the cap reconnect message.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Yan, Zheng
2013-09-22 11:08:14 +08:00
committed by Sage Weil
parent 44c99757fa
commit 99a9c273b9
3 changed files with 26 additions and 4 deletions
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fs/ceph/mds_client.h
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@@ -132,6 +132,7 @@ struct ceph_mds_session {
struct list_head s_caps; /* all caps issued by this session */
int s_nr_caps, s_trim_caps;
int s_num_cap_releases;
int s_cap_reconnect;
struct list_head s_cap_releases; /* waiting cap_release messages */
struct list_head s_cap_releases_done; /* ready to send */
struct ceph_cap *s_cap_iterator;