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Message-ID: <20251003073724.GA12933@lst.de>
Date: Fri, 3 Oct 2025 09:37:24 +0200
From: Christoph Hellwig <hch@....de>
To: Yu Kuai <yukuai1@...weicloud.com>
Cc: tj@...nel.org, ming.lei@...hat.com, nilay@...ux.ibm.com, hch@....de,
	josef@...icpanda.com, axboe@...nel.dk, akpm@...ux-foundation.org,
	vgoyal@...hat.com, cgroups@...r.kernel.org,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, yukuai3@...wei.com, yi.zhang@...wei.com,
	yangerkun@...wei.com, johnny.chenyi@...wei.com
Subject: Re: [PATCH 08/10] blk-cgroup: remove radix_tree_preload()

On Thu, Sep 25, 2025 at 04:15:23PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> Now that blkcg_mutex is used to protect blkgs, memory allocation no
> longer need to be non-blocking, this is not needed.

Btw, this might also be a good time to convert from the old radix tree
to an xarray.


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