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Date:   Wed, 14 Jun 2023 00:03:00 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     baomingtong001@208suo.com
Cc:     clm@fb.com, josef@toxicpanda.com, dsterba@suse.com,
        linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] btrfs: remove unneeded variable from unpin_extent_cache()
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References: <20230614065736.22353-1-luojianhong@cdjrlc.com>
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Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>