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Date: Mon, 6 Jan 2025 11:57:32 +0100
From: Christoph Hellwig <hch@lst.de>
To: Damien Le Moal <dlemoal@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
	Ming Lei <ming.lei@redhat.com>, Nilay Shroff <nilay@linux.ibm.com>,
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	nbd@other.debian.org, virtualization@lists.linux.dev,
	linux-scsi@vger.kernel.org, usb-storage@lists.one-eyed-alien.net
Subject: Re: [PATCH 03/10] block: add a store_limit operations for sysfs
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References: <20250106100645.850445-1-hch@lst.de> <20250106100645.850445-4-hch@lst.de> <a461bbbc-f251-4f44-89c7-f80f72e6e96d@kernel.org>
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On Mon, Jan 06, 2025 at 07:46:19PM +0900, Damien Le Moal wrote:
> The freeze must NOT be done for the "if (entry->store_limit)" case. So this
> needs to go int the "else". Otherwise, you still have freeze the take limit
> lock order which can cause the ABBA deadlocks in SCSI sd.

That is fixed in the next patch.  This one is pure refactoring without
behavior change.