From: Andi Kleen <andi@firstfloor.org>
To: linux-mm@kvack.org
Cc: penberg@cs.helsinki.fi, cl@linux-foundation.org, mpm@selenic.com
Subject: HWPOISON/SLAB: Allow shrinking of specific slab cache.
Date: Wed, 6 Oct 2010 23:02:08 +0200 [thread overview]
Message-ID: <1286398930-11956-1-git-send-email-andi@firstfloor.org> (raw)
For hwpoison it is useful to shrink a specific slab cache: hwpoison
knows the page to shrink and attempts to free it. Currently
it shrinks all slabs, which is a bit inefficient.
The slab caches internally all know this information, but do not
export it currently.
This patch kit adds a new function to export it and lets hwpoison
use it to shrink the correct page. I added the necessary functions
to slab, slub and slob.
Pekka, others, is this patch ok for you? I would prefer to carry in my
tree to avoid dependency issues.
Any reviews and Acks appreciated.
Thanks,
-Andi
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next reply other threads:[~2010-10-06 21:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-06 21:02 Andi Kleen [this message]
2010-10-06 21:02 ` [PATCH 1/2] SLAB: Add function to get slab cache for a page Andi Kleen
2010-10-06 21:42 ` Christoph Lameter
2010-10-07 5:34 ` Pekka Enberg
2010-10-07 6:34 ` Andi Kleen
2010-10-06 21:02 ` [PATCH 2/2] HWPOISON: Attempt directed shrinking of slabs Andi Kleen
2010-10-06 21:26 ` Christoph Lameter
2010-10-06 21:42 ` Andi Kleen
2010-10-06 21:44 ` Christoph Lameter
2010-10-06 21:55 ` Andi Kleen
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