From: Pekka Enberg <penberg@kernel.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Christoph Lameter <cl@linux-foundation.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Matt Mackall <mpm@selenic.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH 2/4] slub,rcu: don't assume the size of struct rcu_head
Date: Tue, 1 Mar 2011 15:00:02 +0200 [thread overview]
Message-ID: <AANLkTimXy2Yaj+NTDMNTWuLqHHfKZJhVDpeXj3CfMvBf@mail.gmail.com> (raw)
In-Reply-To: <4D6CA852.3060303@cn.fujitsu.com>
On Tue, Mar 1, 2011 at 10:03 AM, Lai Jiangshan <laijs@cn.fujitsu.com> wrote:
> The size of struct rcu_head may be changed. When it becomes larger,
> it will pollute the page array.
>
> We reserve some some bytes for struct rcu_head when a slab
> is allocated in this situation.
>
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
The SLAB and SLUB patches are fine by me if there are going to be real
users for this. Christoph, Paul?
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next prev parent reply other threads:[~2011-03-01 13:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 8:03 [PATCH 2/4] slub,rcu: don't assume the size of struct rcu_head Lai Jiangshan
2011-03-01 13:00 ` Pekka Enberg [this message]
2011-03-01 15:11 ` Christoph Lameter
2011-03-02 2:55 ` Lai Jiangshan
2011-03-02 4:31 ` Hugh Dickins
2011-03-02 12:32 ` Christoph Lameter
2011-03-06 19:39 ` Hugh Dickins
2011-03-08 2:17 ` Lai Jiangshan
2011-03-17 15:16 ` Christoph Lameter
2011-03-19 3:58 ` Hugh Dickins
2011-03-08 18:25 ` Christoph Lameter
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