From: James Smart Date: Tue, 9 Mar 2021 00:51:26 +0000 (-0800) Subject: nvme-fc: fix racing controller reset and create association X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f20ef34d71abc1fc56b322aaa251f90f94320140;p=linux.git nvme-fc: fix racing controller reset and create association 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 Signed-off-by: James Smart Signed-off-by: Christoph Hellwig --- diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 97e3424c7b032..73d0737483891 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -2055,7 +2055,7 @@ done: 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); }