linux-kernel - Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c

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Date:	Wed, 1 Oct 2008 10:44:13 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Mike Travis <travis@....com>, Ingo Molnar <mingo@...e.hu>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	David Miller <davem@...emloft.net>, Alan.Brunelle@...com,
	tglx@...utronix.de, rjw@...k.pl,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kernel-testers@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	arjan@...ux.intel.com, Jack Steiner <steiner@....com>
Subject: Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c - bisected

On Wednesday 01 October 2008 02:46:59 Linus Torvalds wrote:
> Quite frankly, I personally do hate typedefs that end up being pointers,
> and used as pointers, without showing that in the source code.
...
> I'm now a bit more leery about this whole thing just
> because the typedef ends up hiding so much - it doesn't just hide the
> basic type, it hides a very basic *code* issue.

Yes, this is why my version of the rework moved away from typedefs, except for 
the special case of "cpumask_var_t" for stack vars where this trick is really 
desired.

Everywhere else, the code becomes nice and clear: struct cpumask *.

Cheers,
Rusty.
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