From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Hugh Dickins <hugh@veritas.com>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [patch 0/6] lockless pagecache
Date: Wed, 09 Jan 2008 16:45:30 +0100 [thread overview]
Message-ID: <1199893530.7143.95.camel@twins> (raw)
In-Reply-To: <20071111084556.GC19816@wotan.suse.de>
On Sun, 2007-11-11 at 09:45 +0100, Nick Piggin wrote:
> Hi,
>
> I wonder what everyone thinks about getting the lockless pagecache patch
> into -mm? This version uses Hugh's suggestion to avoid a smp_rmb and a load
> and branch in the lockless lookup side, and avoids some atomic ops in the
> reclaim path, and avoids using a page flag! The coolest thing about it is
> that it speeds up single-threaded pagecache lookups...
>
> Patches are against latest git for RFC.
How are we doing with this?
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prev parent reply other threads:[~2008-01-09 15:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-11 8:45 [patch 0/6] lockless pagecache Nick Piggin
2007-11-11 8:47 ` [patch 1/6] mm: readahead scan lockless Nick Piggin
2007-11-11 8:49 ` [patch 2/6] radix-tree: gang_lookup_slot Nick Piggin
2007-11-11 8:50 ` [patch 3/6] mm: speculative get page Nick Piggin
2007-11-12 20:21 ` Christoph Lameter
2007-11-13 0:35 ` Nick Piggin
2007-11-13 0:37 ` Christoph Lameter
2007-11-13 0:51 ` Nick Piggin
2007-11-11 8:51 ` [patch 4/6] mm: lockless pagecache lookups Nick Piggin
2007-11-11 8:51 ` [patch 5/6] mm: spinlock tree_lock Nick Piggin
2007-11-11 8:52 ` [patch 6/6] mm: speculative refcount debug Nick Piggin
2007-11-17 9:48 ` [patch 0/6] lockless pagecache Peter Zijlstra
2007-11-17 20:16 ` Hugh Dickins
2007-11-19 22:58 ` Nick Piggin
2008-01-09 15:45 ` Peter Zijlstra [this message]
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