linux-kernel - Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool

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Date:   Wed, 19 Jan 2022 09:17:28 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Praveen Kannoju <praveen.kannoju@...cle.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        Santosh Shilimkar <santosh.shilimkar@...cle.com>,
        "David S . Miller" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "rds-devel@....oracle.com" <rds-devel@....oracle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rama Nichanamatlu <rama.nichanamatlu@...cle.com>,
        Rajesh Sivaramasubramaniom 
        <rajesh.sivaramasubramaniom@...cle.com>
Subject: Re: [PATCH RFC] rds: ib: Reduce the contention caused by the
 asynchronous workers to flush the mr pool

On Wed, Jan 19, 2022 at 01:12:29PM +0000, Praveen Kannoju wrote:

> Yes, we are using the barriers. I was justifying the usage of
> smp_rmb() and smp_wmb() over smp_load_acquire() and
> smp_store_release() in the patch.

You failed to justify it.

Jason