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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next prev 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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