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From: Michal Hocko <mhocko@kernel.org>
To: Reza Arbab <arbab@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>,
	linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Yasuaki Ishimatsu <yasu.isimatu@gmail.com>,
	Tang Chen <tangchen@cn.fujitsu.com>,
	qiuxishi@huawei.com, Kani Toshimitsu <toshi.kani@hpe.com>,
	slaoub@gmail.com, Joonsoo Kim <js1304@gmail.com>,
	Andi Kleen <ak@linux.intel.com>,
	Zhang Zhen <zhenzhang.zhang@huawei.com>,
	David Rientjes <rientjes@google.com>,
	Daniel Kiper <daniel.kiper@oracle.com>,
	Igor Mammedov <imammedo@redhat.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Chris Metcalf <cmetcalf@mellanox.com>,
	Dan Williams <dan.j.williams@gmail.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: Re: [PATCH 0/6] mm: make movable onlining suck less
Date: Tue, 4 Apr 2017 18:44:53 +0200	[thread overview]
Message-ID: <20170404164452.GQ15132@dhcp22.suse.cz> (raw)
In-Reply-To: <20170404160239.ftvuxklioo6zvuxl@arbab-laptop>

On Tue 04-04-17 11:02:39, Reza Arbab wrote:
> On Tue, Apr 04, 2017 at 10:23:02AM +0200, Michal Hocko wrote:
> >diff --git a/drivers/base/node.c b/drivers/base/node.c
> >index 5548f9686016..ee080a35e869 100644
> >--- a/drivers/base/node.c
> >+++ b/drivers/base/node.c
> >@@ -368,8 +368,6 @@ int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
> >}
> >
> >#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
> >-#define page_initialized(page)  (page->lru.next)
> >-
> >static int __ref get_nid_for_pfn(unsigned long pfn)
> >{
> >	struct page *page;
> >@@ -380,9 +378,6 @@ static int __ref get_nid_for_pfn(unsigned long pfn)
> >	if (system_state == SYSTEM_BOOTING)
> >		return early_pfn_to_nid(pfn);
> >#endif
> >-	page = pfn_to_page(pfn);
> >-	if (!page_initialized(page))
> >-		return -1;
> >	return pfn_to_nid(pfn);
> >}
> >
> 
> You can get rid of 'page' altogether.
> 
> drivers/base/node.c: In function a??get_nid_for_pfna??:
> drivers/base/node.c:373:15: warning: unused variable a??pagea?? [-Wunused-variable]

Right, updated.

Thanks for your testing! This is highly appreciated.
Can I assume your Tested-by?
-- 
Michal Hocko
SUSE Labs

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  reply	other threads:[~2017-04-04 16:44 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-30 11:54 Michal Hocko
2017-03-30 11:54 ` [PATCH 1/6] mm: get rid of zone_is_initialized Michal Hocko
2017-03-31  3:39   ` Hillf Danton
2017-03-31  6:43     ` Michal Hocko
2017-03-31  6:48       ` Michal Hocko
2017-03-31  7:39   ` [PATCH v1 " Michal Hocko
2017-04-05  8:14     ` Michal Hocko
2017-04-05  9:06       ` Igor Mammedov
2017-04-05  9:23         ` Michal Hocko
2017-03-30 11:54 ` [PATCH 2/6] mm, tile: drop arch_{add,remove}_memory Michal Hocko
2017-03-30 15:41   ` Chris Metcalf
2017-03-30 11:54 ` [PATCH 3/6] mm: remove return value from init_currently_empty_zone Michal Hocko
2017-03-31  3:49   ` Hillf Danton
2017-03-31  6:49     ` Michal Hocko
2017-03-31  7:06       ` Hillf Danton
2017-03-31  7:18         ` Michal Hocko
2017-03-31  7:43   ` Michal Hocko
2017-04-03 21:22   ` Reza Arbab
2017-04-04  7:30     ` Michal Hocko
2017-03-30 11:54 ` [PATCH 4/6] mm, memory_hotplug: use node instead of zone in can_online_high_movable Michal Hocko
2017-03-30 11:54 ` [PATCH 5/6] mm, memory_hotplug: do not associate hotadded memory to zones until online Michal Hocko
2017-03-31  6:18   ` Hillf Danton
2017-03-31  6:50     ` Michal Hocko
2017-04-04 12:21   ` Tobias Regnery
2017-04-04 12:45     ` Michal Hocko
2017-04-06  8:14   ` Michal Hocko
2017-04-06 12:46   ` Michal Hocko
2017-03-30 11:54 ` [PATCH 6/6] mm, memory_hotplug: remove unused cruft after memory hotplug rework Michal Hocko
2017-03-31  7:46   ` Michal Hocko
2017-03-31 19:19 ` [PATCH 0/6] mm: make movable onlining suck less Heiko Carstens
2017-04-03  7:34   ` Michal Hocko
2017-04-03 11:55 ` Michal Hocko
2017-04-03 12:20   ` Igor Mammedov
2017-04-03 19:58   ` Reza Arbab
2017-04-03 20:23     ` Michal Hocko
2017-04-03 20:42       ` Reza Arbab
2017-04-04  7:23         ` Michal Hocko
2017-04-04  7:34           ` Michal Hocko
2017-04-04  8:23             ` Michal Hocko
2017-04-04 15:59               ` Reza Arbab
2017-04-04 16:02               ` Reza Arbab
2017-04-04 16:44                 ` Michal Hocko [this message]
2017-04-04 18:30                   ` Reza Arbab
2017-04-04 19:41                     ` Michal Hocko
2017-04-04 21:43                       ` Reza Arbab
2017-04-05  6:42                         ` Michal Hocko
2017-04-05  9:24                           ` Michal Hocko
2017-04-05 14:53                             ` Reza Arbab
2017-04-05 15:42                               ` Michal Hocko
2017-04-05 17:32                                 ` Reza Arbab
2017-04-05 18:15                                   ` Michal Hocko
2017-04-05 19:39                                     ` Michal Hocko
2017-04-05 21:02                                     ` Michal Hocko
2017-04-06 11:07                                       ` Michal Hocko
2017-04-05 15:48                           ` Reza Arbab
2017-04-05 16:34                             ` Michal Hocko
2017-04-05 20:55                               ` Reza Arbab
2017-04-06  9:25                               ` Michal Hocko
2017-04-05 13:52                         ` Michal Hocko
2017-04-05 15:23                           ` Reza Arbab
2017-04-05  6:36                       ` Michal Hocko
2017-04-06 13:08 ` Michal Hocko
2017-04-06 15:24   ` Reza Arbab
2017-04-06 15:41     ` Michal Hocko
2017-04-06 15:46       ` Reza Arbab
2017-04-06 16:21         ` Michal Hocko
2017-04-06 16:24           ` Mel Gorman
2017-04-06 16:55           ` Mel Gorman
2017-04-06 17:12             ` Michal Hocko
2017-04-06 17:46               ` Mel Gorman

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