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Date: Wed, 7 May 2008 18:12:32 -0700 (PDT) From: Christoph Lameter <clameter@....com> To: Linus Torvalds <torvalds@...ux-foundation.org> cc: Andrea Arcangeli <andrea@...ranet.com>, Andrew Morton <akpm@...ux-foundation.org>, steiner@....com, holt@....com, npiggin@...e.de, a.p.zijlstra@...llo.nl, kvm-devel@...ts.sourceforge.net, kanojsarcar@...oo.com, rdreier@...co.com, swise@...ngridcomputing.com, linux-kernel@...r.kernel.org, avi@...ranet.com, linux-mm@...ck.org, general@...ts.openfabrics.org, hugh@...itas.com, rusty@...tcorp.com.au, aliguori@...ibm.com, chrisw@...hat.com, marcelo@...ck.org, dada1@...mosbay.com, paulmck@...ibm.com Subject: Re: [PATCH 08 of 11] anon-vma-rwsem On Wed, 7 May 2008, Linus Torvalds wrote: > and you're now done. You have your "mm_lock()" (which still needs to be > renamed - it should be a "mmu_notifier_lock()" or something like that), > but you don't need the insane sorting. At most you apparently need a way > to recognize duplicates (so that you don't deadlock on yourself), which > looks like a simple bit-per-vma. Andrea's mm_lock could have wider impact. It is the first effective way that I have seen of temporarily holding off reclaim from an address space. It sure is a brute force approach. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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