1 files changed, 22 insertions, 8 deletions

diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h
index e230e7ed60d3..24d704d1ea5c 100644
--- a/include/linux/ceph/mon_client.h
+++ b/include/linux/ceph/mon_client.h
@@ -39,20 +39,31 @@ struct ceph_mon_request {
 	ceph_monc_request_func_t do_request;
 };
 
+typedef void (*ceph_monc_callback_t)(struct ceph_mon_generic_request *);
+
 /*
  * ceph_mon_generic_request is being used for the statfs and
  * mon_get_version requests which are being done a bit differently
  * because we need to get data back to the caller
  */
 struct ceph_mon_generic_request {
+	struct ceph_mon_client *monc;
 	struct kref kref;
 	u64 tid;
 	struct rb_node node;
 	int result;
-	void *buf;
+
 	struct completion completion;
+	ceph_monc_callback_t complete_cb;
+	u64 private_data;          /* r_tid/linger_id */
+
 	struct ceph_msg *request;  /* original request */
 	struct ceph_msg *reply;    /* and reply */
+
+	union {
+		struct ceph_statfs *st;
+		u64 newest;
+	} u;
 };
 
 struct ceph_mon_client {
@@ -77,7 +88,6 @@ struct ceph_mon_client {
 
 	/* pending generic requests */
 	struct rb_root generic_request_tree;
-	int num_generic_requests;
 	u64 last_tid;
 
 	/* subs, indexed with CEPH_SUB_* */
@@ -85,7 +95,8 @@ struct ceph_mon_client {
 		struct ceph_mon_subscribe_item item;
 		bool want;
 		u32 have; /* epoch */
-	} subs[3];
+	} subs[4];
+	int fs_cluster_id; /* "mdsmap.<id>" sub */
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs_file;
@@ -100,9 +111,10 @@ extern int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl);
 extern void ceph_monc_stop(struct ceph_mon_client *monc);
 
 enum {
-	CEPH_SUB_MDSMAP = 0,
-	CEPH_SUB_MONMAP,
+	CEPH_SUB_MONMAP = 0,
 	CEPH_SUB_OSDMAP,
+	CEPH_SUB_FSMAP,
+	CEPH_SUB_MDSMAP,
 };
 
 extern const char *ceph_sub_str[];
@@ -116,16 +128,18 @@ extern const char *ceph_sub_str[];
 bool ceph_monc_want_map(struct ceph_mon_client *monc, int sub, u32 epoch,
 			bool continuous);
 void ceph_monc_got_map(struct ceph_mon_client *monc, int sub, u32 epoch);
+void ceph_monc_renew_subs(struct ceph_mon_client *monc);
 
-extern void ceph_monc_request_next_osdmap(struct ceph_mon_client *monc);
 extern int ceph_monc_wait_osdmap(struct ceph_mon_client *monc, u32 epoch,
 				 unsigned long timeout);
 
 extern int ceph_monc_do_statfs(struct ceph_mon_client *monc,
 			       struct ceph_statfs *buf);
 
-extern int ceph_monc_do_get_version(struct ceph_mon_client *monc,
-				    const char *what, u64 *newest);
+int ceph_monc_get_version(struct ceph_mon_client *monc, const char *what,
+			  u64 *newest);
+int ceph_monc_get_version_async(struct ceph_mon_client *monc, const char *what,
+				ceph_monc_callback_t cb, u64 private_data);
 
 extern int ceph_monc_open_session(struct ceph_mon_client *monc);