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From: Zhang Yanfei <zhangyanfei.yes@gmail.com>
To: Tejun Heo <tj@kernel.org>
Cc: "Rafael J . Wysocki" <rjw@sisk.pl>,
	lenb@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
	mingo@elte.hu, "H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Toshi Kani <toshi.kani@hp.com>,
	Wanpeng Li <liwanp@linux.vnet.ibm.com>,
	Thomas Renninger <trenn@suse.de>, Yinghai Lu <yinghai@kernel.org>,
	Jiang Liu <jiang.liu@huawei.com>,
	Wen Congyang <wency@cn.fujitsu.com>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com,
	Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
	mina86@mina86.com, gong.chen@linux.intel.com,
	vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com,
	Rik van Riel <riel@redhat.com>,
	jweiner@redhat.com, prarit@redhat.com,
	"x86@kernel.org" <x86@kernel.org>,
	linux-doc@vger.kernel.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Linux MM <linux-mm@kvack.org>,
	linux-acpi@vger.kernel.org, imtangchen@gmail.com,
	Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Subject: Re: [PATCH v5 2/6] memblock: Introduce bottom-up allocation mode
Date: Fri, 27 Sep 2013 00:51:36 +0800	[thread overview]
Message-ID: <52446618.7070703@gmail.com> (raw)
In-Reply-To: <524454BE.4030602@gmail.com>

On 09/26/2013 11:37 PM, Zhang Yanfei wrote:
> Hello tejun,
> 
> Thanks for your quick comments first:)
> 
> On 09/26/2013 10:45 PM, Tejun Heo wrote:
>> Hello,
>>
>> On Wed, Sep 25, 2013 at 02:27:48AM +0800, Zhang Yanfei wrote:
>>> +#ifdef CONFIG_MOVABLE_NODE
>>> +static inline void memblock_set_bottom_up(bool enable)
>>> +{
>>> +	memblock.bottom_up = enable;
>>> +}
>>> +
>>> +static inline bool memblock_bottom_up(void)
>>> +{
>>> +	return memblock.bottom_up;
>>> +}
>>
>> Can you please explain what this is for here?
> 
> OK, will do.

I write the function description here so you could give your
comments still in this version.

/*
 * Set the allocation direction to bottom-up or top-down.
 */
static inline void memblock_set_bottom_up(bool enable)
{
        memblock.bottom_up = enable;
}


/*
 * Check if the allocation direction is bottom-up or not.
 * if this is true, that said, the boot option "movablenode"
 * has been specified, and memblock will allocate memory
 * just near the kernel image.
 */
static inline bool memblock_bottom_up(void)
{
        return memblock.bottom_up;
}

Thanks.

-- 
Thanks.
Zhang Yanfei

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  parent reply	other threads:[~2013-09-26 16:51 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-24 18:23 [PATCH v5 0/6] x86, memblock: Allocate memory near kernel image before SRAT parsed Zhang Yanfei
2013-09-24 18:25 ` [PATCH v5 1/6] memblock: Factor out of top-down allocation Zhang Yanfei
2013-09-27 22:23   ` Toshi Kani
2013-09-24 18:27 ` [PATCH v5 2/6] memblock: Introduce bottom-up allocation mode Zhang Yanfei
2013-09-26 14:45   ` Tejun Heo
2013-09-26 15:37     ` Zhang Yanfei
2013-09-26 15:50       ` Tejun Heo
2013-09-26 15:54         ` Zhang Yanfei
2013-09-26 16:51       ` Zhang Yanfei [this message]
2013-09-27 22:29   ` Toshi Kani
2013-09-24 18:29 ` [PATCH v5 3/6] x86/mm: Factor out of top-down direct mapping setup Zhang Yanfei
2013-09-26 14:46   ` Tejun Heo
2013-09-26 15:39     ` Zhang Yanfei
2013-09-26 16:56       ` Zhang Yanfei
2013-09-27 22:43   ` Toshi Kani
2013-09-24 18:30 ` [PATCH v5 4/6] x86/mem-hotplug: Support initialize page tables in bottom-up Zhang Yanfei
2013-09-26 14:48   ` Tejun Heo
2013-09-26 15:43     ` Zhang Yanfei
2013-09-26 15:48       ` Tejun Heo
2013-09-26 16:03         ` Zhang Yanfei
2013-09-26 16:08           ` Tejun Heo
2013-09-26 17:00     ` Zhang Yanfei
2013-09-26 22:52   ` Andrew Morton
2013-09-26 22:57     ` H. Peter Anvin
2013-09-24 18:34 ` [PATCH v5 5/6] x86, acpi, crash, kdump: Do reserve_crashkernel() after SRAT is parsed Zhang Yanfei
2013-09-26 14:49   ` Tejun Heo
2013-09-26 15:46     ` Zhang Yanfei
2013-09-27 23:14   ` Toshi Kani
2013-09-24 18:35 ` [PATCH v5 6/6] mem-hotplug: Introduce movablenode boot option Zhang Yanfei
2013-09-26 14:53   ` Tejun Heo
2013-09-26 16:42     ` Zhang Yanfei
2013-09-27  6:26       ` Ingo Molnar
2013-09-27  8:08         ` Yanfei Zhang
2013-09-27 11:05           ` Ingo Molnar

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