From 8618e30bc14b06bfafa0f164cca7b0e06451f88a Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 8 Oct 2012 20:37:30 -0700 Subject: [PATCH] rbd: let con_work() handle backoff Both ceph_fault() and con_work() include handling for imposing a delay before doing further processing on a faulted connection. The latter is used only if ceph_fault() is unable to. Instead, just let con_work() always be responsible for implementing the delay. After setting up the delay value, set the BACKOFF flag on the connection unconditionally and call queue_con() to ensure con_work() will get called to handle it. Signed-off-by: Alex Elder Reviewed-by: Sage Weil --- net/ceph/messenger.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index cad0d17ec45e..973c16c20c42 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2398,24 +2398,8 @@ static void ceph_fault(struct ceph_connection *con) con->delay = BASE_DELAY_INTERVAL; else if (con->delay < MAX_DELAY_INTERVAL) con->delay *= 2; - con->ops->get(con); - if (queue_delayed_work(ceph_msgr_wq, &con->work, - round_jiffies_relative(con->delay))) { - dout("fault queued %p delay %lu\n", con, con->delay); - } else { - con->ops->put(con); - dout("fault failed to queue %p delay %lu, backoff\n", - con, con->delay); - /* - * In many cases we see a socket state change - * while con_work is running and end up - * queuing (non-delayed) work, such that we - * can't backoff with a delay. Set a flag so - * that when con_work restarts we schedule the - * delay then. - */ - set_bit(CON_FLAG_BACKOFF, &con->flags); - } + set_bit(CON_FLAG_BACKOFF, &con->flags); + queue_con(con); } out_unlock: