linux-kernel - Re: Oops with DCACHE_WORD

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Date:	Thu, 3 May 2012 14:20:25 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jana Saout <jana@...ut.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Nick Piggin <npiggin@...il.com>,
	Joel Becker <jlbec@...lplan.org>, linux-kernel@...r.kernel.org
Subject: Re: Oops with DCACHE_WORD_ACCESS and ocfs2, autofs4

On Thu, May 3, 2012 at 2:03 PM, Jana Saout <jana@...ut.de> wrote:
> Hi again,
>
> sorry for the addendum: This was actually the first patch - my mistake -
> copied the new kernel into the wrong place... don't know if this makes a
> difference.  Running the latest patch now, just to make sure.

Both of the early patches had the same issue, and didn't cover
__d_lookup(). I had simply forgotten about it, partly because
__d_lookup() didn't use the other helper functions from
asm/word-at-a-time.h.

So run the later patch, together with the incremental change on top of
it for just the __d_lookup() case.

Or take the patch from this email, which has all the changes,
including the asm simplification that we talked about with Peter. It
also has an optimistic "tested-by" line from you already ;)

                    Linus

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