linux-kernel - Re: delayacct: alignment changes break iotop

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Message-ID: <20101213212253.GI1620@bicker>
Date:	Tue, 14 Dec 2010 00:22:53 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Brian Rogers <brian@...w.org>
Cc:	Jeff Mahoney <jeffm@...e.com>, balbir@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org,
	Guillaume Chazarain <guichaz@...il.com>,
	akpm@...ux-foundation.org
Subject: Re: delayacct: alignment changes break iotop

Yeah, but the rule is that we don't break userspace... :/

Fixing the bug in iotop was always going to be the easy part.  It's
great that they've applied a fix to git repo but it still takes a while
to get the fix out to users so they don't notice a problem.

I think we're going to need to put an ifdef IA64 then size is 8 else
size is 4.  I just started this thread because I was hoping someone
had a different ifdef to use, like maybe there are other arches which
care about the alignment and maybe there is a way to test for it.

regards,
dan carpenter

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