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authorJames Smart <jsmart2021@gmail.com>2018-08-09 16:00:14 -0700
committerChristoph Hellwig <hch@lst.de>2018-08-28 08:40:43 +0200
commitafd299ca996929f4f98ac20da0044c0cdc124879 (patch)
tree5add40a243185533b2e5d23f3afea87525f28668
parentf1ed3df20d2d223e0852cc4ac1f19bba869a7e3c (diff)
download96b-common-afd299ca996929f4f98ac20da0044c0cdc124879.tar.gz
nvme-fcloop: Fix dropped LS's to removed target port
When a targetport is removed from the config, fcloop will avoid calling the LS done() routine thinking the targetport is gone. This leaves the initiator reset/reconnect hanging as it waits for a status on the Create_Association LS for the reconnect. Change the filter in the LS callback path. If tport null (set when failed validation before "sending to remote port"), be sure to call done. This was the main bug. But, continue the logic that only calls done if tport was set but there is no remoteport (e.g. case where remoteport has been removed, thus host doesn't expect a completion). Signed-off-by: James Smart <james.smart@broadcom.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
-rw-r--r--drivers/nvme/target/fcloop.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
index 34712def81b1..5251689a1d9a 100644
--- a/drivers/nvme/target/fcloop.c
+++ b/drivers/nvme/target/fcloop.c
@@ -311,7 +311,7 @@ fcloop_tgt_lsrqst_done_work(struct work_struct *work)
struct fcloop_tport *tport = tls_req->tport;
struct nvmefc_ls_req *lsreq = tls_req->lsreq;
- if (tport->remoteport)
+ if (!tport || tport->remoteport)
lsreq->done(lsreq, tls_req->status);
}
@@ -329,6 +329,7 @@ fcloop_ls_req(struct nvme_fc_local_port *localport,
if (!rport->targetport) {
tls_req->status = -ECONNREFUSED;
+ tls_req->tport = NULL;
schedule_work(&tls_req->work);
return ret;
}