From: Jens Axboe <axboe@kernel.dk>
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
Date: Tue, 07 Jul 2015 07:49:41 -0600 [thread overview]
Message-ID: <559BD8F5.4080700@kernel.dk> (raw)
In-Reply-To: <1436231295-21713-1-git-send-email-avanzini.arianna@gmail.com>
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
prev parent reply other threads:[~2015-07-07 13:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-07 1:08 [PATCH] block/blk-cgroup.c: free per-blkcg data when freeing the blkcg Arianna Avanzini
2015-07-07 13:49 ` Jens Axboe [this message]
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