From: Zoltan Menyhart <Zoltan.Menyhart_AT_bull.net@nospam.org>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Anton Blanchard <anton@samba.org>,
Paul Mackerras <paulus@samba.org>,
linuxppc64-dev@lists.linuxppc.org
Subject: Re: RFC: COW for hugepages
Date: Wed, 07 Apr 2004 11:00:43 +0200 [thread overview]
Message-ID: <4073C33B.7B7808E7@nospam.org> (raw)
In-Reply-To: 20040407074239.GG18264@zax
David,
Why not just add a flag for a VMA telling if you want / do not want to
copy it on "fork()" ? E.g.:
dup_mmap():
for (= current->mm->mmap ; mpnt ; mpnt = mpnt->vm_next) {
if (mpnt->vm_flags & VM_HUGETLB_DONT_COPY)
<do nothing>
}
Regards,
Zoltán Menyhárt
next prev parent reply other threads:[~2004-04-07 11:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-07 7:42 RFC: COW for hugepages David Gibson
2004-04-07 7:53 ` Andrew Morton
2004-04-07 8:03 ` Anton Blanchard
2004-04-07 8:29 ` Benjamin Herrenschmidt
2004-04-08 1:57 ` David Gibson
2004-04-07 9:00 ` Zoltan Menyhart [this message]
2004-04-08 1:53 ` David Gibson
2004-04-08 11:10 ` Zoltan Menyhart
2004-04-08 14:19 ` David Gibson
2004-04-07 12:34 ` Andi Kleen
2004-04-07 14:27 ` Anton Blanchard
2004-04-07 14:50 ` Andi Kleen
2004-04-07 21:41 ` Anton Blanchard
2004-04-07 21:47 ` Andi Kleen
2004-04-08 1:11 ` Benjamin Herrenschmidt
2004-04-08 2:01 ` Andrew Morton
2004-04-08 3:09 ` David Gibson
2004-04-08 3:24 ` Andrew Morton
2004-04-08 3:56 ` David Gibson
2004-04-08 1:50 ` David Gibson
2004-04-07 15:21 ` Dave Hansen
2004-04-08 3:22 ` David Gibson
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