3 files changed, 23 insertions, 1 deletions

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index 983285540945..a32f0f896d9f 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -366,6 +366,14 @@ void ceph_con_open(struct ceph_connection *con, struct ceph_entity_addr *addr)
 }
 
 /*
+ * return true if this connection ever successfully opened
+ */
+bool ceph_con_opened(struct ceph_connection *con)
+{
+        return con->connect_seq > 0;
+}
+
+/*
  * generic get/put
  */
 struct ceph_connection *ceph_con_get(struct ceph_connection *con)
diff --git a/fs/ceph/messenger.h b/fs/ceph/messenger.h
index 4caaa5911110..a343dae73cdc 100644
--- a/fs/ceph/messenger.h
+++ b/fs/ceph/messenger.h
@@ -223,6 +223,7 @@ extern void ceph_con_init(struct ceph_messenger *msgr,
                           struct ceph_connection *con);
 extern void ceph_con_open(struct ceph_connection *con,
                           struct ceph_entity_addr *addr);
+extern bool ceph_con_opened(struct ceph_connection *con);
 extern void ceph_con_close(struct ceph_connection *con);
 extern void ceph_con_send(struct ceph_connection *con, struct ceph_msg *msg);
 extern void ceph_con_revoke(struct ceph_connection *con, struct ceph_msg *msg);
diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index 04359217ea6c..c7b4dedaace6 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -413,11 +413,22 @@ static void remove_old_osds(struct ceph_osd_client *osdc, int remove_all)
  */
 static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
 {
+        struct ceph_osd_request *req;
         int ret = 0;
 
         dout("__reset_osd %p osd%d\n", osd, osd->o_osd);
         if (list_empty(&osd->o_requests)) {
                 __remove_osd(osdc, osd);
+        } else if (memcmp(&osdc->osdmap->osd_addr[osd->o_osd],
+                          &osd->o_con.peer_addr,
+                          sizeof(osd->o_con.peer_addr)) == 0 &&
+                   !ceph_con_opened(&osd->o_con)) {
+                dout(" osd addr hasn't changed and connection never opened,"
+                     " letting msgr retry");
+                /* touch each r_stamp for handle_timeout()'s benfit */
+                list_for_each_entry(req, &osd->o_requests, r_osd_item)
+                        req->r_stamp = jiffies;
+                ret = -EAGAIN;
         } else {
                 ceph_con_close(&osd->o_con);
                 ceph_con_open(&osd->o_con, &osdc->osdmap->osd_addr[osd->o_osd]);
@@ -862,7 +873,9 @@ static int __kick_requests(struct ceph_osd_client *osdc,
 
         dout("kick_requests osd%d\n", kickosd ? kickosd->o_osd : -1);
         if (kickosd) {
-                __reset_osd(osdc, kickosd);
+                err = __reset_osd(osdc, kickosd);
+                if (err == -EAGAIN)
+                        return 1;
         } else {
                 for (p = rb_first(&osdc->osds); p; p = n) {
                         struct ceph_osd *osd =