From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: James Smart jsmart2021@gmail.com
[ Upstream commit f20ef34d71abc1fc56b322aaa251f90f94320140 ]
Recent patch to prevent calling __nvme_fc_abort_outstanding_ios in interrupt context results in a possible race condition. A controller reset results in errored io completions, which schedules error work. The change of error work to a work element allows it to fire after the ctrl state transition to NVME_CTRL_CONNECTING, causing any outstanding io (used to initialize the controller) to fail and cause problems for connect_work.
Add a state check to only schedule error work if not in the RESETTING state.
Fixes: 19fce0470f05 ("nvme-fc: avoid calling _nvme_fc_abort_outstanding_ios from interrupt context") Signed-off-by: Nigel Kirkland nkirkland2304@gmail.com Signed-off-by: James Smart jsmart2021@gmail.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/host/fc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 5f36cfa8136c..7ec6869b3e5b 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -2055,7 +2055,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) nvme_fc_complete_rq(rq);
check_error: - if (terminate_assoc) + if (terminate_assoc && ctrl->ctrl.state != NVME_CTRL_RESETTING) queue_work(nvme_reset_wq, &ctrl->ioerr_work); }