From fbca963532eba779bffa14c70d1dc619e6bfa16d Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 28 Apr 2016 16:07:24 +0200 Subject: [PATCH] libceph: schedule tick from ceph_osdc_init() Both homeless OSD sessions and watch/notify v2, introduced in later commits, require periodic ticks which don't depend on ->num_requests. Schedule the initial tick from ceph_osdc_init() and reschedule from handle_timeout() unconditionally. Signed-off-by: Ilya Dryomov --- net/ceph/osd_client.c | 37 +++++++++---------------------------- 1 file changed, 9 insertions(+), 28 deletions(-) diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 4c7231e..41dabce 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1138,17 +1138,6 @@ static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) return 0; } -static void __schedule_osd_timeout(struct ceph_osd_client *osdc) -{ - schedule_delayed_work(&osdc->timeout_work, - osdc->client->options->osd_keepalive_timeout); -} - -static void __cancel_osd_timeout(struct ceph_osd_client *osdc) -{ - cancel_delayed_work(&osdc->timeout_work); -} - /* * Register request, assign tid. If this is the first request, set up * the timeout event. @@ -1162,10 +1151,6 @@ static void __register_request(struct ceph_osd_client *osdc, insert_request(&osdc->requests, req); ceph_osdc_get_request(req); osdc->num_requests++; - if (osdc->num_requests == 1) { - dout(" first request, scheduling timeout\n"); - __schedule_osd_timeout(osdc); - } } /* @@ -1196,11 +1181,6 @@ static void __unregister_request(struct ceph_osd_client *osdc, list_del_init(&req->r_req_lru_item); ceph_osdc_put_request(req); - - if (osdc->num_requests == 0) { - dout(" no requests, canceling timeout\n"); - __cancel_osd_timeout(osdc); - } } /* @@ -1702,13 +1682,10 @@ static void __complete_request(struct ceph_osd_request *req) } /* - * Timeout callback, called every N seconds when 1 or more osd - * requests has been active for more than N seconds. When this - * happens, we ping all OSDs with requests who have timed out to - * ensure any communications channel reset is detected. Reset the - * request timeouts another N seconds in the future as we go. - * Reschedule the timeout event another N seconds in future (unless - * there are no open requests). + * Timeout callback, called every N seconds. When 1 or more OSD + * requests has been active for more than N seconds, we send a keepalive + * (tag + timestamp) to its OSD to ensure any communications channel + * reset is detected. */ static void handle_timeout(struct work_struct *work) { @@ -1749,10 +1726,12 @@ static void handle_timeout(struct work_struct *work) ceph_con_keepalive(&osd->o_con); } - __schedule_osd_timeout(osdc); __send_queued(osdc); mutex_unlock(&osdc->request_mutex); up_read(&osdc->map_sem); + + schedule_delayed_work(&osdc->timeout_work, + osdc->client->options->osd_keepalive_timeout); } static void handle_osds_timeout(struct work_struct *work) @@ -2749,6 +2728,8 @@ int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) if (!osdc->notify_wq) goto out_msgpool_reply; + schedule_delayed_work(&osdc->timeout_work, + osdc->client->options->osd_keepalive_timeout); schedule_delayed_work(&osdc->osds_timeout_work, round_jiffies_relative(osdc->client->options->osd_idle_ttl)); -- 2.7.4