From: David Howells <dhowells@redhat.com>
To: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: dhowells@redhat.com,
Linus Torvalds <torvalds@linux-foundation.org>,
Eric B Munson <ebmunson@us.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Al Viro <viro@ZenIV.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] nommu: reject MAP_HUGETLB
Date: Tue, 05 Jan 2010 15:23:33 +0000 [thread overview]
Message-ID: <17220.1262705013@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.00.1001051232530.1055@sister.anvils>
Hugh Dickins <hugh.dickins@tiscali.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
WARNING: multiple messages have this Message-ID (diff)
From: David Howells <dhowells@redhat.com>
To: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: dhowells@redhat.com,
Linus Torvalds <torvalds@linux-foundation.org>,
Eric B Munson <ebmunson@us.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Al Viro <viro@ZenIV.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] nommu: reject MAP_HUGETLB
Date: Tue, 05 Jan 2010 15:23:33 +0000 [thread overview]
Message-ID: <17220.1262705013@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.00.1001051232530.1055@sister.anvils>
Hugh Dickins <hugh.dickins@tiscali.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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next prev parent reply other threads:[~2010-01-05 15:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-30 20:17 [PATCH] mm: move sys_mmap_pgoff from util.c Hugh Dickins
2009-12-30 20:17 ` Hugh Dickins
2010-01-04 12:38 ` Eric B Munson
2010-01-04 17:21 ` Hugh Dickins
2010-01-04 17:21 ` Hugh Dickins
2010-01-05 12:37 ` [PATCH] nommu: reject MAP_HUGETLB Hugh Dickins
2010-01-05 12:37 ` Hugh Dickins
2010-01-05 12:47 ` Eric B Munson
2010-01-05 15:23 ` David Howells [this message]
2010-01-05 15:23 ` David Howells
2010-01-05 16:16 ` Hugh Dickins
2010-01-05 16:16 ` Hugh Dickins
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