From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: Balazs Nemeth <bnemeth@redhat.com>, "dev@dpdk.org" <dev@dpdk.org>,
"Ling, WeiX" <weix.ling@intel.com>
Subject: Re: [dpdk-dev] [PATCH] vhost: fix invalid use of stored last used index
Date: Tue, 18 May 2021 08:03:06 +0000 [thread overview]
Message-ID: <MN2PR11MB4063F79EE0CC59F2F9709C339C2C9@MN2PR11MB4063.namprd11.prod.outlook.com> (raw)
In-Reply-To: <83fa6253725a7bc69bccb7897f380422354a2898.1621008025.git.bnemeth@redhat.com>
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Balazs Nemeth
> Sent: Saturday, May 15, 2021 12:02 AM
> To: bnemeth@redhat.com; dev@dpdk.org; Ling, WeiX <weix.ling@intel.com>
> Subject: [dpdk-dev] [PATCH] vhost: fix invalid use of stored last used index
>
> The optimization introduced by commit d18db8049c7c ("vhost: read last
> used index once") didn't account for the fact that
> vhost_flush_enqueue_shadow_packed increments the last_used_idx. For this
> reason, store last_used_idx after the potential call to
> vhost_flush_enqueue_shadow_packed.
>
> Fixes: d18db8049c7c ("vhost: read last used index once")
> Signed-off-by: Balazs Nemeth <bnemeth@redhat.com>
> ---
> 2.30.2
Applied to next-virtio/main, thanks
prev parent reply other threads:[~2021-05-18 8:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 16:02 Balazs Nemeth
2021-05-15 6:10 ` David Marchand
2021-05-17 7:37 ` Maxime Coquelin
2021-05-17 10:07 ` Ling, WeiX
2021-05-17 10:46 ` Maxime Coquelin
2021-05-18 8:03 ` Xia, Chenbo [this message]
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