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ceph: check availability of mds cluster on mount

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Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng
2016-11-10 16:02:06 +08:00
committed by Ilya Dryomov
parent 7ce469a53e
commit e9e427f0a1
5 changed files with 187 additions and 11 deletions
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5
include/linux/ceph/mdsmap.h
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@@ -31,6 +31,10 @@ struct ceph_mdsmap {
int m_num_data_pg_pools;
u64 *m_data_pg_pools;
u64 m_cas_pg_pool;
bool m_enabled;
bool m_damaged;
int m_num_laggy;
};
static inline struct ceph_entity_addr *
@@ -59,5 +63,6 @@ static inline bool ceph_mdsmap_is_laggy(struct ceph_mdsmap *m, int w)
extern int ceph_mdsmap_get_random_mds(struct ceph_mdsmap *m);
extern struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end);
extern void ceph_mdsmap_destroy(struct ceph_mdsmap *m);
extern bool ceph_mdsmap_is_cluster_available(struct ceph_mdsmap *m);
#endif