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Date:   Thu, 7 Mar 2019 17:11:27 -0500
From:   Josef Bacik <josef@toxicpanda.com>
To:     Andrea Righi <andrea.righi@canonical.com>
Cc:     Josef Bacik <josef@toxicpanda.com>, Tejun Heo <tj@kernel.org>,
        Li Zefan <lizefan@huawei.com>,
        Paolo Valente <paolo.valente@linaro.org>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Jens Axboe <axboe@kernel.dk>, Vivek Goyal <vgoyal@redhat.com>,
        Dennis Zhou <dennis@kernel.org>, cgroups@vger.kernel.org,
        linux-block@vger.kernel.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/3] blkcg: introduce io.sync_isolation
Message-ID: <20190307221125.hy2j76m6tv7vnjpr@macbook-pro-91.dhcp.thefacebook.com>
References: <20190307180834.22008-1-andrea.righi@canonical.com>
 <20190307180834.22008-3-andrea.righi@canonical.com>
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On Thu, Mar 07, 2019 at 07:08:33PM +0100, Andrea Righi wrote:
> Add a flag to the blkcg cgroups to make sync()'ers in a cgroup only be
> allowed to write out pages that have been dirtied by the cgroup itself.
> 
> This flag is disabled by default (meaning that we are not changing the
> previous behavior by default).
> 
> When this flag is enabled any cgroup can write out only dirty pages that
> belong to the cgroup itself (except for the root cgroup that would still
> be able to write out all pages globally).
> 
> Signed-off-by: Andrea Righi <andrea.righi@canonical.com>

Reviewed-by: Josef Bacik <josef@toxicpanda.com>

Thanks,

Josef