Re: [PATCH 01/20] blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 01/20] blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Tue, 24 Nov 2020 07:26:03 -0500
Cc: Jens Axboe <axboe@xxxxxxxxx>, Josef Bacik <josef@xxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Coly Li <colyli@xxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, dm-devel@xxxxxxxxxx, Richard Weinberger <richard@xxxxxx>, Jan Kara <jack@xxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-bcache@xxxxxxxxxxxxxxx, linux-mtd@xxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <20201118084800.2339180-2-hch@lst.de>

On Wed, Nov 18, 2020 at 09:47:41AM +0100, Christoph Hellwig wrote:
> disk_get_part needs to be paired with a disk_put_part.
> 
> Fixes: ef45fe470e1 ("blk-cgroup: show global disk stats in root cgroup io.stat")
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun

References:
- merge struct block_device and struct hd_struct
  - From: Christoph Hellwig
- [PATCH 01/20] blk-cgroup: fix a hd_struct leak in blkcg_fill_root_iostats
  - From: Christoph Hellwig

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