From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [RFE] Add a new super operation for finding block devices in a
 super
Date: Mon, 14 Mar 2011 12:31:26 -0400
Message-ID: <20110314163126.GA13784@infradead.org>
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Cc: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
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To: Josef Bacik <josef@redhat.com>
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I think there's a better and more efficient way to archive this.

We already have a bd_super field in struct block_device.  Just
generalize it, and use it from the freeze code instead of doing the
get_active_super loop.