From: Arjan van de Ven <arjan@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dave Jones <davej@redhat.com>, Matthew Wilcox <matthew@wil.cx>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Make
Date: Tue, 20 May 2008 09:15:44 -0700 [thread overview]
Message-ID: <20080520091544.464dc19c@infradead.org> (raw)
In-Reply-To: <alpine.LFD.1.10.0805200752580.32253@woody.linux-foundation.org>
On Tue, 20 May 2008 07:54:10 -0700 (PDT)
Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
>
> On Tue, 20 May 2008, Dave Jones wrote:
> >
> > Like this ? (I don't have a -mm handy, so guessed based on
> > mm-commits mail, patch uncompiled, but should dtrt if I understood
> > your diff correctly)
> >
> > diff --git a/lib/list_debug.c b/lib/list_debug.c
> > index 4350ba9..d8dee53 100644
> > --- a/lib/list_debug.c
> > +++ b/lib/list_debug.c
> > @@ -21,16 +21,14 @@ void __list_add(struct list_head *new,
> > struct list_head *next)
> > {
> > if (unlikely(next->prev != prev)) {
> > - printk(KERN_ERR "list_add corruption. next->prev
> > should be "
> > + WARN(1, "list_add corruption. next->prev should be
> > " "prev (%p), but was %p. (next=%p).\n",
> > prev, next->prev, next);
> > - BUG();
> > }
>
> I think Arjan meant like
>
> WARN(next->prev != prev,
> "list_add corruption. next->prev should be "
> "prev (%p), but was %p. (next=%p).\n",
> prev, next->prev, next);
>
> without any "if()" statement at all.
Dave...what Linus said ;)
would be nice to get WARN() into mainline soon... ;)
next prev parent reply other threads:[~2008-05-20 16:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-02 18:27 [PATCH] Extend list debugging to cover hlists Matthew Wilcox
2008-05-01 20:32 ` Arjan van de Ven
2008-05-02 18:49 ` Matthew Wilcox
2008-05-02 19:05 ` Dave Jones
2008-05-20 3:24 ` [PATCH] Make Dave Jones
2008-05-20 14:14 ` Arjan van de Ven
2008-05-20 14:27 ` Dave Jones
2008-05-20 14:54 ` Linus Torvalds
2008-05-20 15:20 ` Dave Jones
2008-05-20 16:15 ` Arjan van de Ven [this message]
2008-05-20 15:00 ` Alexey Dobriyan
2008-05-20 15:12 ` Linus Torvalds
2008-05-20 15:22 ` Dave Jones
2008-05-20 21:52 ` [PATCH] Make (LIST_DEBUG WARN not BUG) Alexey Dobriyan
2008-05-02 23:14 ` [PATCH] Extend list debugging to cover hlists Andrew Morton
2008-05-02 23:17 ` Matthew Wilcox
2008-05-02 23:39 ` Andrew Morton
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