Date: Mon, 18 May 2015 17:59:07 -0400
From: Tejun Heo <tj@kernel.org>
To: Aleksa Sarai <cyphar@cyphar.com>
Cc: lizefan@huawei.com, mingo@redhat.com, peterz@infradead.org, richard@nod.at,
        fweisbec@gmail.com, linux-kernel@vger.kernel.org,
        cgroups@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
        Vivek Goyal <vgoyal@redhat.com>
Subject: Re: [PATCH v12 4/8] cgroup, block: implement task_get_css() and use
 it in bio_associate_current()
Message-ID: <20150518215907.GJ24861@htj.duckdns.org>
References: <1431960667-26593-1-git-send-email-cyphar@cyphar.com>
 <1431960667-26593-5-git-send-email-cyphar@cyphar.com>
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On Tue, May 19, 2015 at 12:51:03AM +1000, Aleksa Sarai wrote:
> From: Tejun Heo <tj@kernel.org>
> 
> bio_associate_current() currently open codes task_css() and
> css_tryget_online() to find and pin $current's blkcg css.  Abstract it
> into task_get_css() which is implemented from cgroup side.  As a task
> is always associated with an online css for every subsystem except
> while the css_set update is propagating, task_get_css() retries till
> css_tryget_online() succeeds.
> 
> This is a cleanup and shouldn't lead to noticeable behavior changes.

Applied 1-4 but skipped bio_associate_current() changes from this
patch.  I'll route that part through a different patchset.

Thanks.

-- 
tejun
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