linux-kernel - Re: [PATCH] blkcg: revert blkcg cleanups series

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Message-ID: <fd8428ce-21d0-c817-3187-fb9a43feb389@kernel.dk>
Date:   Thu, 1 Nov 2018 17:01:43 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Dennis Zhou <dennis@...nel.org>
Cc:     Tejun Heo <tj@...nel.org>, kernel-team@...com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] blkcg: revert blkcg cleanups series

On 11/1/18 3:24 PM, Dennis Zhou wrote:
> This reverts a series committed earlier due to null pointer exception
> bug report in [1]. It seems there are edge case interactions that I did
> not consider and will need some time to understand what causes the
> adverse interactions.
> 
> The original series can be found in [2] with a follow up series in [3].
> 
> [1] https://www.spinics.net/lists/cgroups/msg20719.html
> [2] https://lore.kernel.org/lkml/20180911184137.35897-1-dennisszhou@gmail.com/
> [3] https://lore.kernel.org/lkml/20181020185612.51587-1-dennis@kernel.org/
> 
> This reverts the following commits:
> d459d853c2ed, b2c3fa546705, 101246ec02b5, b3b9f24f5fcc, e2b0989954ae,
> f0fcb3ec89f3, c839e7a03f92, bdc2491708c4, 74b7c02a9bc1, 5bf9a1f3b4ef,
> a7b39b4e961c, 07b05bcc3213, 49f4c2dc2b50, 27e6fa996c53

Thanks Dennis, I think this is the best way forward. Then you can
work on getting the stacked setups working correctly for 4.21.

-- 
Jens Axboe