From: Jason Gunthorpe <jgg@ziepe.ca>
To: Zhu Yanjun <zyjzyj2000@gmail.com>
Cc: Mikhail Malygin <m.malygin@yadro.com>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
Sergey Kojushev <S.Kojushev@yadro.com>,
"linux@yadro.com" <linux@yadro.com>
Subject: Re: [PATCH] rdma_rxe: Prevent access to wr->next ptr afrer wr is posted to send queue
Date: Thu, 16 Jul 2020 08:41:15 -0300 [thread overview]
Message-ID: <20200716114115.GF25301@ziepe.ca> (raw)
In-Reply-To: <CAD=hENdB-hVZr-ivU9FhVqEiF4WJZmjuY3iFBpuEJqRD548zkQ@mail.gmail.com>
On Thu, Jul 16, 2020 at 11:17:09AM +0800, Zhu Yanjun wrote:
> On Wed, Jul 15, 2020 at 8:39 PM Mikhail Malygin <m.malygin@yadro.com> wrote:
> >
> > Thanks, I’ll post an updated version.
> >
> > Mikhail
> >
> > > On 15 Jul 2020, at 14:37, Jason Gunthorpe <jgg@nvidia.com> wrote:
> > >
> > > The spinock in post_one_send() guarantees no reordering across
>
> How about spin_lock_irqsave?
The unlock of any lock prevents store reordering by definition
Jason
next prev parent reply other threads:[~2020-07-16 11:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 8:57 [PATCH] rdma_rxe: Prevent access to wr->next ptr afrer wr is posted to send queue Mikhail Malygin
2020-07-15 11:37 ` Jason Gunthorpe
2020-07-15 12:18 ` Mikhail Malygin
2020-07-16 3:17 ` Zhu Yanjun
2020-07-16 11:41 ` Jason Gunthorpe [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-06-09 12:54 m.malygin
2020-07-14 19:59 ` Jason Gunthorpe
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