diff options
Diffstat (limited to 'drivers/block/drbd/drbd_req.c')
| -rw-r--r-- | drivers/block/drbd/drbd_req.c | 52 |
1 files changed, 36 insertions, 16 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index c4e4553..8fa51cd 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -213,8 +213,7 @@ void _req_may_be_done(struct drbd_request *req, struct bio_and_error *m) { const unsigned long s = req->rq_state; struct drbd_conf *mdev = req->w.mdev; - /* only WRITES may end up here without a master bio (on barrier ack) */ - int rw = req->master_bio ? bio_data_dir(req->master_bio) : WRITE; + int rw = req->rq_state & RQ_WRITE ? WRITE : READ; /* we must not complete the master bio, while it is * still being processed by _drbd_send_zc_bio (drbd_send_dblock) @@ -225,7 +224,7 @@ void _req_may_be_done(struct drbd_request *req, struct bio_and_error *m) * the receiver, * the bio_endio completion callbacks. */ - if (s & RQ_LOCAL_PENDING) + if (s & RQ_LOCAL_PENDING && !(s & RQ_LOCAL_ABORTED)) return; if (req->i.waiting) { /* Retry all conflicting peer requests. */ @@ -288,6 +287,9 @@ void _req_may_be_done(struct drbd_request *req, struct bio_and_error *m) req->master_bio = NULL; } + if (s & RQ_LOCAL_PENDING) + return; + if ((s & RQ_NET_MASK) == 0 || (s & RQ_NET_DONE)) { /* this is disconnected (local only) operation, * or protocol C P_WRITE_ACK, @@ -362,7 +364,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, break; case COMPLETED_OK: - if (bio_data_dir(req->master_bio) == WRITE) + if (req->rq_state & RQ_WRITE) mdev->writ_cnt += req->i.size >> 9; else mdev->read_cnt += req->i.size >> 9; @@ -374,6 +376,14 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, put_ldev(mdev); break; + case ABORT_DISK_IO: + req->rq_state |= RQ_LOCAL_ABORTED; + if (req->rq_state & RQ_WRITE) + _req_may_be_done_not_susp(req, m); + else + goto goto_queue_for_net_read; + break; + case WRITE_COMPLETED_WITH_ERROR: req->rq_state |= RQ_LOCAL_COMPLETED; req->rq_state &= ~RQ_LOCAL_PENDING; @@ -402,6 +412,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, __drbd_chk_io_error(mdev, false); put_ldev(mdev); + goto_queue_for_net_read: + /* no point in retrying if there is no good remote data, * or we have no connection. */ if (mdev->state.pdsk != D_UP_TO_DATE) { @@ -1071,14 +1083,21 @@ void request_timer_fn(unsigned long data) struct drbd_request *req; /* oldest request */ struct list_head *le; struct net_conf *nc; - unsigned long et; /* effective timeout = ko_count * timeout */ + unsigned long ent = 0, dt = 0, et; /* effective timeout = ko_count * timeout */ rcu_read_lock(); nc = rcu_dereference(tconn->net_conf); - et = nc ? nc->timeout * HZ/10 * nc->ko_count : 0; + ent = nc ? nc->timeout * HZ/10 * nc->ko_count : 0; + + if (get_ldev(mdev)) { + dt = rcu_dereference(mdev->ldev->disk_conf)->disk_timeout * HZ / 10; + put_ldev(mdev); + } rcu_read_unlock(); - if (!et || mdev->state.conn < C_WF_REPORT_PARAMS) + et = min_not_zero(dt, ent); + + if (!et || (mdev->state.conn < C_WF_REPORT_PARAMS && mdev->state.disk <= D_FAILED)) return; /* Recurring timer stopped */ spin_lock_irq(&tconn->req_lock); @@ -1091,17 +1110,18 @@ void request_timer_fn(unsigned long data) le = le->prev; req = list_entry(le, struct drbd_request, tl_requests); - if (time_is_before_eq_jiffies(req->start_time + et)) { - if (req->rq_state & RQ_NET_PENDING) { + if (ent && req->rq_state & RQ_NET_PENDING) { + if (time_is_before_eq_jiffies(req->start_time + ent)) { dev_warn(DEV, "Remote failed to finish a request within ko-count * timeout\n"); - _drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE, NULL); - } else { - dev_warn(DEV, "Local backing block device frozen?\n"); - mod_timer(&mdev->request_timer, jiffies + et); + _drbd_set_state(_NS(mdev, conn, C_TIMEOUT), CS_VERBOSE | CS_HARD, NULL); + } + } + if (dt && req->rq_state & RQ_LOCAL_PENDING) { + if (time_is_before_eq_jiffies(req->start_time + dt)) { + dev_warn(DEV, "Local backing device failed to meet the disk-timeout\n"); + __drbd_chk_io_error(mdev, 1); } - } else { - mod_timer(&mdev->request_timer, req->start_time + et); } - spin_unlock_irq(&tconn->req_lock); + mod_timer(&mdev->request_timer, req->start_time + et); } |