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Date: Wed, 24 Jun 2026 16:05:59 +0200
From: Christoph Hellwig <hch@lst.de>
To: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>, Christoph Hellwig <hch@lst.de>,
	Jens Axboe <axboe@kernel.dk>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, Carlos Maiolino <cem@kernel.org>,
	linux-xfs@vger.kernel.org, Chris Mason <clm@fb.com>,
	David Sterba <dsterba@suse.com>, linux-btrfs@vger.kernel.org,
	Theodore Ts'o <tytso@mit.edu>, linux-ext4@vger.kernel.org,
	Gao Xiang <xiang@kernel.org>, linux-erofs@lists.ozlabs.org
Subject: Re: [PATCH RFC v2 07/18] fs: maintain a global
 device-to-superblock table
Message-ID: <20260624140559.GB7692@lst.de>
References: <20260616-work-super-bdev_holder_global-v2-0-7df6b864028e@kernel.org> <20260616-work-super-bdev_holder_global-v2-7-7df6b864028e@kernel.org>
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In-Reply-To: <20260616-work-super-bdev_holder_global-v2-7-7df6b864028e@kernel.org>
User-Agent: Mutt/1.5.17 (2007-11-01)

FYI, I still think maintaining a dev_t to sb mapping vs having a holder
register a claim is a major step backwards architecturally.  I spent
a lot of effort to get us out of this.