From: Glauber Costa <glommer@parallels.com>
To: Suleiman Souhlal <suleiman@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Suleiman Souhlal <ssouhlal@freebsd.org>,
cgroups@vger.kernel.org, penberg@kernel.org, yinghan@google.com,
hughd@google.com, gthelen@google.com, linux-mm@kvack.org,
devel@openvz.org
Subject: Re: [PATCH 04/10] memcg: Introduce __GFP_NOACCOUNT.
Date: Tue, 6 Mar 2012 14:36:43 +0400 [thread overview]
Message-ID: <4F55E8BB.5060704@parallels.com> (raw)
In-Reply-To: <CABCjUKBP=pKgDP5RkD4BimTjoE=bQQO7NxNNAiGUfy602T4c7A@mail.gmail.com>
On 03/04/2012 04:10 AM, Suleiman Souhlal wrote:
> On Sat, Mar 3, 2012 at 3:24 PM, Glauber Costa<glommer@parallels.com> wrote:
>> On 03/03/2012 01:38 PM, Suleiman Souhlal wrote:
>>> Another possible example might be the skb data, which are just kmalloc
>>> and are already accounted by your TCP accounting changes, so we might
>>> not want to account them a second time.
>>
>>
>> How so?
>>
>> struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
>> int fclone, int node)
>> {
>> [ ... ]
>> cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;
>>
>> /* Get the HEAD */
>> skb = kmem_cache_alloc_node(cache, gfp_mask& ~__GFP_DMA, node);
>
> Just a few lines below:
>
> data = kmalloc_node_track_caller(size, gfp_mask, node);
>
> -- Suleiman
Can't we just make sure those come from the root cgroup's slabs?
Then we need no flag.
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next prev parent reply other threads:[~2012-03-06 10:37 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-27 22:58 [PATCH 00/10] memcg: Kernel Memory Accounting Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 01/10] memcg: Kernel memory accounting infrastructure Suleiman Souhlal
2012-02-28 13:10 ` Glauber Costa
2012-02-29 0:37 ` Suleiman Souhlal
2012-02-28 13:11 ` Glauber Costa
2012-02-27 22:58 ` [PATCH 02/10] memcg: Uncharge all kmem when deleting a cgroup Suleiman Souhlal
2012-02-28 19:00 ` Glauber Costa
2012-02-29 0:24 ` Suleiman Souhlal
2012-02-29 16:51 ` Glauber Costa
2012-02-29 6:22 ` KAMEZAWA Hiroyuki
2012-02-29 19:00 ` Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 03/10] memcg: Reclaim when more than one page needed Suleiman Souhlal
2012-02-29 6:18 ` KAMEZAWA Hiroyuki
2012-02-27 22:58 ` [PATCH 04/10] memcg: Introduce __GFP_NOACCOUNT Suleiman Souhlal
2012-02-29 6:00 ` KAMEZAWA Hiroyuki
2012-02-29 16:53 ` Glauber Costa
2012-02-29 19:09 ` Suleiman Souhlal
2012-03-01 0:10 ` KAMEZAWA Hiroyuki
2012-03-01 0:24 ` Glauber Costa
2012-03-01 6:05 ` KAMEZAWA Hiroyuki
2012-03-03 14:22 ` Glauber Costa
2012-03-03 16:38 ` Suleiman Souhlal
2012-03-03 23:24 ` Glauber Costa
2012-03-04 0:10 ` Suleiman Souhlal
2012-03-06 10:36 ` Glauber Costa [this message]
2012-03-06 16:13 ` Suleiman Souhlal
2012-03-06 18:31 ` Glauber Costa
2012-02-27 22:58 ` [PATCH 05/10] memcg: Slab accounting Suleiman Souhlal
2012-02-28 13:24 ` Glauber Costa
2012-02-28 23:31 ` Suleiman Souhlal
2012-02-29 17:00 ` Glauber Costa
2012-02-27 22:58 ` [PATCH 06/10] memcg: Track all the memcg children of a kmem_cache Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 07/10] memcg: Stop res_counter underflows Suleiman Souhlal
2012-02-28 13:31 ` Glauber Costa
2012-02-28 23:07 ` Suleiman Souhlal
2012-02-29 17:05 ` Glauber Costa
2012-02-29 19:17 ` Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 08/10] memcg: Add CONFIG_CGROUP_MEM_RES_CTLR_KMEM_ACCT_ROOT Suleiman Souhlal
2012-02-28 13:34 ` Glauber Costa
2012-02-28 23:36 ` Suleiman Souhlal
2012-02-28 23:54 ` KAMEZAWA Hiroyuki
2012-02-29 17:09 ` Glauber Costa
2012-02-29 19:24 ` Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 09/10] memcg: Per-memcg memory.kmem.slabinfo file Suleiman Souhlal
2012-02-27 22:58 ` [PATCH 10/10] memcg: Document kernel memory accounting Suleiman Souhlal
2012-02-27 23:05 ` Randy Dunlap
2012-02-28 8:49 ` [PATCH 00/10] memcg: Kernel Memory Accounting Pekka Enberg
2012-02-28 22:12 ` Suleiman Souhlal
2012-02-28 13:03 ` Glauber Costa
2012-02-28 22:47 ` Suleiman Souhlal
2012-02-29 16:47 ` Glauber Costa
2012-02-29 19:28 ` Suleiman Souhlal
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