From ac307385849db68fbdb4ce9665f25c84c3623089 Mon Sep 17 00:00:00 2001 From: James Smart Date: Mon, 9 Oct 2017 13:39:44 -0700 Subject: [PATCH] nvme-fc: fix iowait hang MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit 8a82dbf19129dde9e6fc9ab25a00dbc7569abe6a upstream. Add missing iowait head initialization. Fix irqsave vs irq: wait_event_lock_irq() doesn't do irq save/restore Fixes: 36715cf4b366 ("nvme_fc: replace ioabort msleep loop with completion”) Signed-off-by: James Smart Reviewed-by: Sagi Grimberg Reviewed-by: Himanshu Madhani Tested-by: Himanshu Madhani Signed-off-by: Christoph Hellwig Signed-off-by: Greg Kroah-Hartman --- drivers/nvme/host/fc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 5c2a08ef08baf..0cc96e9ae6ff7 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -2477,10 +2477,10 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl) nvme_fc_abort_aen_ops(ctrl); /* wait for all io that had to be aborted */ - spin_lock_irqsave(&ctrl->lock, flags); + spin_lock_irq(&ctrl->lock); wait_event_lock_irq(ctrl->ioabort_wait, ctrl->iocnt == 0, ctrl->lock); ctrl->flags &= ~FCCTRL_TERMIO; - spin_unlock_irqrestore(&ctrl->lock, flags); + spin_unlock_irq(&ctrl->lock); nvme_fc_term_aen_ops(ctrl); @@ -2693,6 +2693,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, ctrl->rport = rport; ctrl->dev = lport->dev; ctrl->cnum = idx; + init_waitqueue_head(&ctrl->ioabort_wait); get_device(ctrl->dev); kref_init(&ctrl->ref); -- 2.47.2