linux-kernel - Re: __vm_enough_memory(), OVERCOMMIT

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Date:	Wed, 22 Oct 2008 21:46:32 +0900
From:	hooanon05@...oo.co.jp
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: __vm_enough_memory(), OVERCOMMIT_NEVER, current->mm, kernel thread 


Alan Cox:
> This is the patch I propose:
	:::
> We could simply check for NULL and skip the modifier but we've caught other
> real bugs in the past from mm being NULL here - cases where we did need a
> valid mm set up (eg the exec bug about a year ago).

OK.
I didn't know there was an actual bug but now I understand why you want
to insert WARN_ON().

I have nothing to say about your patch.


Thank you
Junjiro R. Okajima
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