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List: linux-virtualization
Subject: [PATCH RFC v2 03/10] vringh: reset kiov 'consumed' field in __vringh_iov()
From: Stefano Garzarella <sgarzare () redhat ! com>
Date: 2021-01-28 14:41:20
Message-ID: 20210128144127.113245-4-sgarzare () redhat ! com
[Download RAW message or body]
__vringh_iov() overwrites the contents of riov and wiov, in fact it
resets the 'i' and 'used' fields, but also the consumed field should
be reset to avoid an inconsistent state.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
drivers/vhost/vringh.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index f68122705719..bee63d68201a 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -290,9 +290,9 @@ __vringh_iov(struct vringh *vrh, u16 i,
return -EINVAL;
if (riov)
- riov->i = riov->used = 0;
+ riov->i = riov->used = riov->consumed = 0;
if (wiov)
- wiov->i = wiov->used = 0;
+ wiov->i = wiov->used = wiov->consumed = 0;
for (;;) {
void *addr;
--
2.29.2
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