From: Cong Wang <xiyou.wangcong@gmail.com>
To: linux-mm@kvack.org
Subject: Re: [PATCH RESEND v4 1/3] mm/sparse: optimize sparse_index_alloc
Date: Mon, 23 Jul 2012 08:18:04 +0000 (UTC) [thread overview]
Message-ID: <juj1bs$qh3$1@dough.gmane.org> (raw)
In-Reply-To: 1343010702-28720-1-git-send-email-shangw@linux.vnet.ibm.com
On Mon, 23 Jul 2012 at 02:31 GMT, Gavin Shan <shangw@linux.vnet.ibm.com> wrote:
> With CONFIG_SPARSEMEM_EXTREME, the two level of memory section
> descriptors are allocated from slab or bootmem. When allocating
> from slab, let slab/bootmem allocator to clear the memory chunk.
> We needn't clear that explicitly.
>
> Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
> Reviewed-by: Michal Hocko <mhocko@suse.cz>
> Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
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next prev parent reply other threads:[~2012-07-23 8:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-23 2:31 [PATCH RESEND v4 1/3] mm/sparse: optimize sparse_index_alloc Gavin Shan
2012-07-23 2:31 ` [PATCH RESEND v4 2/3] mm/sparse: more check on mem_section number Gavin Shan
2012-07-23 8:21 ` Cong Wang
2012-07-23 2:31 ` [PATCH RESEND v2 3/3] mm/sparse: remove index_init_lock Gavin Shan
2012-07-23 8:20 ` Cong Wang
2012-07-23 8:18 ` Cong Wang [this message]
2012-07-24 0:54 ` [PATCH RESEND v4 1/3] mm/sparse: optimize sparse_index_alloc Gavin Shan
2012-07-24 0:54 ` Gavin Shan
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