[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20200416075643.27330-3-eperezma@redhat.com>
Date: Thu, 16 Apr 2020 09:56:37 +0200
From: Eugenio Pérez <eperezma@...hat.com>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
"virtualization@...ts.linux-foundation.org"
<virtualization@...ts.linux-foundation.org>,
Christian Borntraeger <borntraeger@...ibm.com>,
Eugenio Pérez <eperezma@...hat.com>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
kvm list <kvm@...r.kernel.org>,
Cornelia Huck <cohuck@...hat.com>,
Halil Pasic <pasic@...ux.ibm.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 2/8] vhost: Not cleaning batched descs in VHOST_SET_VRING_BASE ioctl
They are cleaned in vhost_vq_set_backend, which can be called with an
active backend. To set and remove backends already clean batched
descriptors, so to do it here is completely redundant.
Fixes: ("af3756cfed9a vhost: batching fetches")
Signed-off-by: Eugenio Pérez <eperezma@...hat.com>
---
drivers/vhost/vhost.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 0395229486a9..882d0df57e24 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1579,7 +1579,6 @@ long vhost_vring_ioctl(struct vhost_dev *d, unsigned int ioctl, void __user *arg
vq->last_avail_idx = s.num;
/* Forget the cached index value. */
vq->avail_idx = vq->last_avail_idx;
- vq->ndescs = vq->first_desc = 0;
break;
case VHOST_GET_VRING_BASE:
s.index = idx;
--
2.18.1
Powered by blists - more mailing lists