linux-kernel - Re: [PATCH 01/10] block: move existing elevator ops to union

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Message-ID: <20170113083420.GB16676@infradead.org>
Date:   Fri, 13 Jan 2017 00:34:20 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Jens Axboe <axboe@...com>
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        osandov@...ndov.com, bart.vanassche@...disk.com
Subject: Re: [PATCH 01/10] block: move existing elevator ops to union

On Wed, Jan 11, 2017 at 02:39:54PM -0700, Jens Axboe wrote:
> Prep patch for adding MQ ops as well, since doing anon unions with
> named initializers doesn't work on older compilers.

My gut feeling tells me MQ schedulers shouldn't share elevator_type.
I'll play around a bit with the code later to see if my gut was right.