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Date:   Mon, 20 Jun 2022 09:49:21 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc:     Christoph Hellwig <hch@lst.de>, David Sterba <dsterba@suse.com>,
        Josef Bacik <josef@toxicpanda.com>, Qu Wenruo <wqu@suse.com>,
        linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 06/10] btrfs: transfer the bio counter reference to the
 raid submission helpers
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On Mon, Jun 20, 2022 at 03:45:45PM +0800, Qu Wenruo wrote:
> For the sake of consistency, is it possible that the other profiles also
> follow the same behavior?

Yes.  I actually just wrote the patch for that after reading your
other mail.  Still needs more testing of course.

> I guess it will need at least a counter to track how many pending bios
> in btrfs_io_context so bio counter is only decreased for the last bio?

We already do that using the bi_pending counter in the bio.