linux-kernel - Re: [Patch 04/18] include/linux/logfs.h

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Message-Id: <18f622d94e9273fe6c93ef091fcec87c@kernel.crashing.org>
Date:	Tue, 5 Jun 2007 17:49:01 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Kyle Moffett <mrmacman_g4@....com>,
	John Stoffel <john@...ffel.org>, Willy Tarreau <w@....eu>,
	Evgeniy Polyakov <johnpol@....mipt.ru>, CaT <cat@....com.au>,
	Ondrej Zajicek <santiago@...reenet.org>,
	linux-kernel@...r.kernel.org, Bill Davidsen <davidsen@....com>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dongjun Shin <djshin90@...il.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Arnd Bergmann <arnd@...db.de>,
	Albert Cahalan <acahalan@...il.com>,
	linux-fsdevel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	Artem Bityutskiy <dedekind@...radead.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Jamie Lokier <jamie@...reable.org>,
	Roland Dreier <rdreier@...co.com>,
	Jörn Engel <joern@...ybastard.org>,
	Pavel Machek <pavel@....cz>,
	Ulisses Furquim <ulissesf@...il.com>, akpm@...l.org,
	David Weinehall <tao@....umu.se>
Subject: Re: [Patch 04/18] include/linux/logfs.h

> It would be better if GCC had a 'nopadding' attribute which gave us 
> what
> we need without the _extra_ implications about alignment.

That's impossible; removing the padding from a struct
_will_ make accesses to its members unaligned (think
about arrays of that struct).


Segher

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