Transparent Hugepage Support #21 [LWN.net]

From:		Andrea Arcangeli <aarcange@redhat.com>
To:		linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Subject:		Transparent Hugepage Support #21
Date:		Sat, 24 Apr 2010 19:10:48 +0200
Cc:		Marcelo Tosatti <mtosatti@redhat.com>, Adam Litke <agl@us.ibm.com>, Avi Kivity <avi@redhat.com>, Izik Eidus <ieidus@redhat.com>, Hugh Dickins <hugh.dickins@tiscali.co.uk>, Nick Piggin <npiggin@suse.de>, Rik van Riel <riel@redhat.com>, Mel Gorman <mel@csn.ul.ie>, Dave Hansen <dave@linux.vnet.ibm.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Ingo Molnar <mingo@elte.hu>, Mike Travis <travis@sgi.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Christoph Lameter <cl@linux-foundation.org>, Chris Wright <chrisw@sous-sol.org>, bpicco@redhat.com, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Balbir Singh <balbir@linux.vnet.ibm.com>, "Michael S. Tsirkin" <mst@redhat.com>, Peter Zijlstra <peterz@infradead.org>, Johannes Weiner <hannes@cmpxchg.org>, Dais
Archive-link:		Article, Thread

http://git.kernel.org/?p=linux/kernel/git/andrea/aa.git;a...

first: git clone git://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git
or first: git clone --reference linux-2.6 git://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git
later: git fetch; git checkout -f origin/master; git diff fb6122f722c9e07da384c1309a5036a5f1c80a77

The tree is rebased and git pull won't work.

http://www.kernel.org/pub/linux/kernel/people/andrea/patc...
http://www.kernel.org/pub/linux/kernel/people/andrea/patc...

This adds full numa awareness to all hugepage allocations (page faults
and khugepaged), it adds a generic document, and it includes the v8
memory compaction. It still has to run with the 2.6.33 anon-vma code
to avoid crashes in split_huge_page and migrate.c invoked by
memory-compaction (see vma_adjust and expand_downwards discussed on
lkml even after the more recent fixes).

Please review especially the generic document. If you want a patchbomb
I'll send it privately.

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