libceph: open-code remove_{all,old}_osds()

They are called only once, from ceph_osdc_stop() and
handle_osds_timeout() respectively.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 32ba09b..c423e11 100644 (file)
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1126,18 +1126,6 @@ static void remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
        }
 }
 
-static void remove_all_osds(struct ceph_osd_client *osdc)
-{
-       dout("%s %p\n", __func__, osdc);
-       mutex_lock(&osdc->request_mutex);
-       while (!RB_EMPTY_ROOT(&osdc->osds)) {
-               struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds),
-                                               struct ceph_osd, o_node);
-               remove_osd(osdc, osd);
-       }
-       mutex_unlock(&osdc->request_mutex);
-}
-
 static void __move_osd_to_lru(struct ceph_osd_client *osdc,
                              struct ceph_osd *osd)
 {
@@ -1165,20 +1153,6 @@ static void __remove_osd_from_lru(struct ceph_osd *osd)
                list_del_init(&osd->o_osd_lru);
 }
 
-static void remove_old_osds(struct ceph_osd_client *osdc)
-{
-       struct ceph_osd *osd, *nosd;
-
-       dout("__remove_old_osds %p\n", osdc);
-       mutex_lock(&osdc->request_mutex);
-       list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) {
-               if (time_before(jiffies, osd->lru_ttl))
-                       break;
-               remove_osd(osdc, osd);
-       }
-       mutex_unlock(&osdc->request_mutex);
-}
-
 /*
  * reset osd connect
  */
@@ -1671,12 +1645,21 @@ static void handle_osds_timeout(struct work_struct *work)
                container_of(work, struct ceph_osd_client,
                             osds_timeout_work.work);
        unsigned long delay = osdc->client->options->osd_idle_ttl / 4;
+       struct ceph_osd *osd, *nosd;
 
-       dout("osds timeout\n");
+       dout("%s osdc %p\n", __func__, osdc);
        down_read(&osdc->map_sem);
-       remove_old_osds(osdc);
-       up_read(&osdc->map_sem);
+       mutex_lock(&osdc->request_mutex);
+
+       list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) {
+               if (time_before(jiffies, osd->lru_ttl))
+                       break;
+
+               remove_osd(osdc, osd);
+       }
 
+       mutex_unlock(&osdc->request_mutex);
+       up_read(&osdc->map_sem);
        schedule_delayed_work(&osdc->osds_timeout_work,
                              round_jiffies_relative(delay));
 }
@@ -2722,11 +2705,19 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc)
        destroy_workqueue(osdc->notify_wq);
        cancel_delayed_work_sync(&osdc->timeout_work);
        cancel_delayed_work_sync(&osdc->osds_timeout_work);
+
+       mutex_lock(&osdc->request_mutex);
+       while (!RB_EMPTY_ROOT(&osdc->osds)) {
+               struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds),
+                                               struct ceph_osd, o_node);
+               remove_osd(osdc, osd);
+       }
+       mutex_unlock(&osdc->request_mutex);
+
        if (osdc->osdmap) {
                ceph_osdmap_destroy(osdc->osdmap);
                osdc->osdmap = NULL;
        }
-       remove_all_osds(osdc);
        mempool_destroy(osdc->req_mempool);
        ceph_msgpool_destroy(&osdc->msgpool_op);
        ceph_msgpool_destroy(&osdc->msgpool_op_reply);