From: William Lee Irwin III <wli@holomorphy.com>
To: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@osdl.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [patch] hugepage allocator cleanup
Date: Wed, 25 Jan 2006 07:05:13 -0800 [thread overview]
Message-ID: <20060125150513.GF7655@holomorphy.com> (raw)
In-Reply-To: <20060125091103.GA32653@wotan.suse.de>
On Wed, Jan 25, 2006 at 10:11:03AM +0100, Nick Piggin wrote:
> This is a slight rework of the mechanism for allocating "fresh" hugepages.
> Comments?
> --
> Insert "fresh" huge pages into the hugepage allocator by the same
> means as they are freed back into it. This reduces code size and
> allows enqueue_huge_page to be inlined into the hugepage free
> fastpath.
> Eliminate occurances of hugepages on the free list with non-zero
> refcount. This can allow stricter refcount checks in future. Also
> required for lockless pagecache.
I don't really see any particular benefit to the rearrangement for
hugetlb's own sake. Explaining more about how it it's needed for the
lockless pagecache might help.
-- wli
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next prev parent reply other threads:[~2006-01-25 15:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-25 9:11 [patch] hugepage allocator cleanup Nick Piggin
2006-01-25 15:05 ` William Lee Irwin III [this message]
2006-01-25 15:18 ` Nick Piggin
2006-01-25 16:32 ` William Lee Irwin III
2006-01-25 16:52 ` Nick Piggin
2006-01-26 3:04 ` William Lee Irwin III
2006-01-26 14:19 ` Nick Piggin
2006-01-26 3:09 ` William Lee Irwin III
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