From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Tiwei Bie <tiwei.bie@intel.com>, dev@dpdk.org
Cc: yliu@fridaylinux.org, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH] vhost: make the page logging atomic
Date: Tue, 1 Aug 2017 14:05:44 +0200 [thread overview]
Message-ID: <367875c7-d9f8-03e2-f7af-07e98cd5f772@redhat.com> (raw)
In-Reply-To: <1501578081-191381-1-git-send-email-tiwei.bie@intel.com>
On 08/01/2017 11:01 AM, Tiwei Bie wrote:
> Each dirty page logging operation should be atomic. But it's not
> atomic in current implementation. So it's possible that some dirty
> pages can't be logged successfully when different threads try to
> log different pages into the same byte of the log buffer concurrently.
> This patch fixes this issue.
>
> Fixes: b171fad1ffa5 ("vhost: log used vring changes")
> Cc:stable@dpdk.org
>
> Reported-by: Xiao Wang<xiao.w.wang@intel.com>
> Signed-off-by: Tiwei Bie<tiwei.bie@intel.com>
> ---
> lib/librte_vhost/vhost.h | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Thanks,
Maxime
next prev parent reply other threads:[~2017-08-01 12:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-01 9:01 Tiwei Bie
2017-08-01 12:05 ` Maxime Coquelin [this message]
2017-08-03 20:10 ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
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