IB/srp: Don't schedule reconnect from srp
If there is a problem in the connection, the SCSI mid-layer will
eventually call srp_reset_host(), which will call srp_reconnect(), so
we do not need to schedule a call to srp_reconnect_work() from
srp_completion().
Removing this prevents srp_reset_host() from failing if a reconnect
scheduled from srp_completion() is already in progress, which in turn
was causing crashes as both SCSI midlayer and srp_reconnect() were
cancelling commands.
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 8257d5a..fd8344c 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -799,13 +799,6 @@
spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
}
-static void srp_reconnect_work(void *target_ptr)
-{
- struct srp_target_port *target = target_ptr;
-
- srp_reconnect_target(target);
-}
-
static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
{
struct srp_iu *iu;
@@ -858,7 +851,6 @@
{
struct srp_target_port *target = target_ptr;
struct ib_wc wc;
- unsigned long flags;
ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
while (ib_poll_cq(cq, 1, &wc) > 0) {
@@ -866,10 +858,6 @@
printk(KERN_ERR PFX "failed %s status %d\n",
wc.wr_id & SRP_OP_RECV ? "receive" : "send",
wc.status);
- spin_lock_irqsave(target->scsi_host->host_lock, flags);
- if (target->state == SRP_TARGET_LIVE)
- schedule_work(&target->work);
- spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
break;
}
@@ -1705,8 +1693,6 @@
target->scsi_host = target_host;
target->srp_host = host;
- INIT_WORK(&target->work, srp_reconnect_work, target);
-
INIT_LIST_HEAD(&target->free_reqs);
INIT_LIST_HEAD(&target->req_queue);
for (i = 0; i < SRP_SQ_SIZE; ++i) {
