From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: fix circular disk reference in blk-cgroup
Date: Mon, 13 Feb 2023 11:41:31 +0100
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To: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>, Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Josef Bacik <josef-DigfWCa+lFGyeJad7bwFQA@public.gmane.org>
Cc: Ming Lei <ming.lei-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

Hi all,

the third patch fixes a problem in haivng a circular disk reference
for blkgs.  The first two patches clean up blk-throttle to avoid
queue->disk refernece that get torn down in disk_release but could
in theory be used in the pd_free handler.

Diffstat:
 block/blk-cgroup.c     |   12 +++++++++---
 block/blk-throttle.c   |   39 ++++++++++++++++-----------------------
 include/linux/blkdev.h |    8 +++-----
 3 files changed, 28 insertions(+), 31 deletions(-)