linux-kernel - Re: [PATCH] Add prctl support for controlling mem reclaim V4

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Message-ID: <24073284-ee53-d22d-dcef-277231283d75@acm.org>
Date:   Wed, 27 Nov 2019 10:07:45 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     Mike Christie <mchristi@...hat.com>, linux-api@...r.kernel.org,
        idryomov@...il.com, mhocko@...nel.org, david@...morbit.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-block@...r.kernel.org, martin@...ackup.org,
        Damien.LeMoal@....com
Cc:     Michal Hocko <mhocko@...e.com>,
        Masato Suzuki <masato.suzuki@....com>
Subject: Re: [PATCH] Add prctl support for controlling mem reclaim V4

On 11/11/19 4:19 PM, Mike Christie wrote:
> There are several storage drivers like dm-multipath, iscsi, tcmu-runner,
> amd nbd that have userspace components that can run in the IO path. For
> example, iscsi and nbd's userspace deamons may need to recreate a socket
> and/or send IO on it, and dm-multipath's daemon multipathd may need to
> send SG IO or read/write IO to figure out the state of paths and re-set
> them up.

Reviewed-by: Bart Van Assche <bvanassche@....org>