/* * mds map - describe servers in the mds cluster. * * we limit fields to those the client actually xcares about
*/ struct ceph_mds_info {
u64 global_id; struct ceph_entity_addr addr;
s32 state; int num_export_targets; bool laggy;
u32 *export_targets;
};
struct ceph_mdsmap {
u32 m_epoch, m_client_epoch, m_last_failure;
u32 m_root;
u32 m_session_timeout; /* seconds */
u32 m_session_autoclose; /* seconds */
u64 m_max_file_size; /* * maximum size for xattrs blob. * Zeroed by default to force the usage of the (sync) SETXATTR Op.
*/
u64 m_max_xattr_size;
u32 m_max_mds; /* expected up:active mds number */
u32 m_num_active_mds; /* actual up:active mds number */
u32 possible_max_rank; /* possible max rank index */ struct ceph_mds_info *m_info;
/* which object pools file data can be stored in */ 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;
};
staticinlinestruct ceph_entity_addr *
ceph_mdsmap_get_addr(struct ceph_mdsmap *m, int w)
{ if (w >= m->possible_max_rank) return NULL; return &m->m_info[w].addr;
}
staticinlineint ceph_mdsmap_get_state(struct ceph_mdsmap *m, int w)
{
BUG_ON(w < 0); if (w >= m->possible_max_rank) return CEPH_MDS_STATE_DNE; return m->m_info[w].state;
}
staticinlinebool ceph_mdsmap_is_laggy(struct ceph_mdsmap *m, int w)
{ if (w >= 0 && w < m->possible_max_rank) return m->m_info[w].laggy; returnfalse;
}
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