linux-kernel - Re: [PATCH] block: reorder request_queue to remove 64 bit alignment padding

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Message-ID: <4E1DEF78.3020702@fusionio.com>
Date:	Wed, 13 Jul 2011 21:18:16 +0200
From:	Jens Axboe <jaxboe@...ionio.com>
To:	Richard Kennedy <richard@....demon.co.uk>
CC:	Tejun Heo <tj@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] block: reorder request_queue to remove 64 bit alignment
  padding

On 2011-07-11 16:19, Richard Kennedy wrote:
> Reorder request_queue to remove 16 bytes of alignment padding in 64 bit
> builds.
> 
> On my config this shrinks the size of this structure from 1608 to 1592
> bytes and therefore needs one fewer cachelines.
> 
> Also trivially move the open bracket { to be on the same line as the
> structure name to make it easier to grep. 

Thanks, applied.

-- 
Jens Axboe

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