Message-ID: <559BD8F5.4080700@kernel.dk>
Date: Tue, 07 Jul 2015 07:49:41 -0600
From: Jens Axboe <axboe@kernel.dk>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0
MIME-Version: 1.0
To: Arianna Avanzini <avanzini.arianna@gmail.com>,
        linux-kernel@vger.kernel.org
CC: kaminsky@cs.cmu.edu
Subject: Re: [PATCH] block/blk-cgroup.c: free per-blkcg data when freeing
 the blkcg
References: <1436231295-21713-1-git-send-email-avanzini.arianna@gmail.com>
In-Reply-To: <1436231295-21713-1-git-send-email-avanzini.arianna@gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1053
Lines: 24

On 07/06/2015 07:08 PM, Arianna Avanzini wrote:
> Currently, per-blkcg data is freed each time a policy is deactivated,
> that is also upon scheduler switch. However, when switching from a
> scheduler implementing a policy which requires per-blkcg data to
> another one, that same policy might be active on other devices, and
> therefore those same per-blkcg data could be still in use.
> This commit lets per-blkcg data be freed when the blkcg is freed
> instead of on policy deactivation.
>
> Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
> Reported-and-tested-by: Michael Kaminsky <kaminsky@cs.cmu.edu>
> Fixes: e48453c3 ("block, cgroup: implement policy-specific per-blkcg data")

Thanks Arianna, applied! Hopefully this is the end of the per-policy 
data issues for 4.2.

-- 
Jens Axboe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/