linux-kernel - Re: [PATCH 1/2] vfs: make sure struct filename->iname is word-aligned

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Date:	Fri, 19 Feb 2016 10:00:27 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	Al Viro <viro@...IV.linux.org.uk>,
	Jeff Layton <jlayton@...chiereds.net>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] vfs: make sure struct filename->iname is word-aligned

On Thu, Feb 18, 2016 at 09:10:21PM +0100, Rasmus Villemoes wrote:
> 
> Sure, that would work as well. I don't really care how ->iname is pushed
> out to offset 32, but I'd like to know if it's worth it.

Do you have access to one of these platforms where unaligned access is
really painful?  The usual thing is to benchmark something like "git
stat" which has to stat every single file in a repository's working
directory.  If you can't see it there, it seems unlikely you'd see it
anywhere else, yes?

					- Ted