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Message-ID: <686d7df6-c7d1-48a6-b7ff-48dc8aff6a62@kernel.dk>
Date: Mon, 21 May 2018 08:19:58 -0600
From: Jens Axboe <axboe@...nel.dk>
To: Mike Snitzer <snitzer@...hat.com>,
Kent Overstreet <kent.overstreet@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
hch@...radead.org, colyli@...e.de, darrick.wong@...cle.com,
clm@...com, bacik@...com, linux-xfs@...r.kernel.org,
drbd-dev@...ts.linbit.com, linux-btrfs@...r.kernel.org,
linux-raid@...r.kernel.org, neilb@...e.com
Subject: Re: [PATCH 00/13] convert block layer to bioset_init()/mempool_init()
On 5/21/18 8:03 AM, Mike Snitzer wrote:
> On Sun, May 20 2018 at 6:25pm -0400,
> Kent Overstreet <kent.overstreet@...il.com> wrote:
>
>> Jens - this series does the rest of the conversions that Christoph wanted, and
>> drops bioset_create().
>>
>> Only lightly tested, but the changes are pretty mechanical. Based on your
>> for-next tree.
>
> By switching 'mempool_t *' to 'mempool_t' and 'bio_set *' to 'bio_set'
> you've altered the alignment of members in data structures. So I'll
> need to audit all the data structures you've modified in DM.
>
> Could we get the backstory on _why_ you're making this change?
> Would go a long way to helping me appreciate why this is a good use of
> anyone's time.
Yeah, it's in the first series, it gets rid of a pointer indirection.
--
Jens Axboe
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