From: James Smart <jsmart2021@gmail.com>
Date: Thu, 28 Sep 2017 16:56:31 +0000 (-0700)
Subject: nvme-fc: avoid workqueue flush stalls
X-Git-Tag: v4.19~2212^2~86^2~14
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=71c691fd06cc2625966620c93ce21bdcce32ed95;p=platform%2Fkernel%2Flinux-rpi.git

nvme-fc: avoid workqueue flush stalls

There's no need to wait for the full nvme_wq, which is now shared,
to flush. flush only the delete_work item.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Sagi Grimberg <sgi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index b600c07..50cc17e 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2693,7 +2693,7 @@ nvme_fc_del_nvme_ctrl(struct nvme_ctrl *nctrl)
 	nvme_get_ctrl(&ctrl->ctrl);
 	ret = __nvme_fc_del_ctrl(ctrl);
 	if (!ret)
-		flush_workqueue(nvme_wq);
+		flush_work(&ctrl->delete_work);
 	nvme_put_ctrl(&ctrl->ctrl);
 
 	return ret;