From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Gruenbacher <agruen@suse.de>
Subject: aligned_{u64,be64,le64} defined in #ifdef __KERNEL__
Date: Mon, 30 Aug 2010 03:26:29 +0200
Message-ID: <201008300326.30233.agruen@suse.de>
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To: Eric Paris <eparis@parisplace.org>, netfilter@vger.kernel.org
Cc: Eric Paris <eparis@redhat.com>, linux-kernel@vger.kernel.org, Andreas Schwab <schwab@redhat.com>, Tvrtko Ursulin <tvrtko.ursulin@sophos.com>

On Saturday 28 August 2010 01:51:53 Eric Paris wrote:
> I liked this version until I realized that userspace doesn't have
> aligned_u64 as a valid type.

This looks like an error in include/linux/types.h.  The aligned types should 
probably not be defined inside #ifdef __KERNEL__.

The following other headers expose aligned 64-bit types to user space as well; 
copying the netfilter list:

	include/linux/if_ppp.h
	include/linux/netfilter/nfnetlink_queue.h
	include/linux/netfilter/nfnetlink_log.h
	include/linux/netfilter/xt_quota.h
	include/linux/netfilter/xt_connbytes.h

Otherwise, the definition of those types is really simple, and this would do 
in include/linux/fanotify.h until include/linux/types.h is fixed:

	#ifndef aligned_u64
	# define aligned_u64 __u64 __attribute__((aligned(8)))
	#endif

Thanks,
Andreas