linux-kernel - [PATCH 4.14 47/61] block/ndb: add WQ_UNBOUND to the knbd-recv workqueue

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Date:   Thu, 10 Oct 2019 10:37:12 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Melnic <dmm@...com>,
        Josef Bacik <jbacik@...com>, Jens Axboe <axboe@...nel.dk>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 47/61] block/ndb: add WQ_UNBOUND to the knbd-recv workqueue

From: Dan Melnic <dmm@...com>

[ Upstream commit 2189c97cdbed630d5971ab22f05dc998774e354e ]

Add WQ_UNBOUND to the knbd-recv workqueue so we're not bound
to a single CPU that is selected at device creation time.

Signed-off-by: Dan Melnic <dmm@...com>
Reviewed-by: Josef Bacik <jbacik@...com>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/block/nbd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index a65e4ed6c9372..14b491c5cf7b6 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -2217,7 +2217,8 @@ static int __init nbd_init(void)
 	if (nbds_max > 1UL << (MINORBITS - part_shift))
 		return -EINVAL;
 	recv_workqueue = alloc_workqueue("knbd-recv",
-					 WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
+					 WQ_MEM_RECLAIM | WQ_HIGHPRI |
+					 WQ_UNBOUND, 0);
 	if (!recv_workqueue)
 		return -ENOMEM;
 
-- 
2.20.1