linux-kernel - Re: [PATCH v3 0/3] block: avoid to call .bi_end

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Date:	Mon, 2 May 2016 07:52:32 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Ming Lei <ming.lei@...onical.com>
Cc:	Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
	linux-btrfs@...r.kernel.org,
	"open list:FILESYSTEMS (VFS and infrastructure)" 
	<linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] block: avoid to call .bi_end_io() recursively

On Thu, Apr 28, 2016 at 09:09:00AM +0800, Ming Lei wrote:
> The 3rd patch avoids to call .bi_end_io recursively in complete path.

Care to explain what the reason for doing that is?

If we have excessively long bi_end_io chains we should probably look
into fixing them instead.