linux-kernel - Re: [PATCH] nommu: reject MAP

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Message-ID: <17220.1262705013@redhat.com>
Date:	Tue, 05 Jan 2010 15:23:33 +0000
From:	David Howells <dhowells@...hat.com>
To:	Hugh Dickins <hugh.dickins@...cali.co.uk>
Cc:	dhowells@...hat.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Eric B Munson <ebmunson@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Al Viro <viro@...IV.linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] nommu: reject MAP_HUGETLB

Hugh Dickins <hugh.dickins@...cali.co.uk> wrote:

> We've agreed to restore the rejection of MAP_HUGETLB to nommu.
> Mimic what happens with mmu when hugetlb is not configured in:
> say -ENOSYS, but -EINVAL if MAP_ANONYMOUS was not given too.

On the other hand, why not just ignore the MAP_HUGETLB flag on NOMMU?

David
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