From: Jiang Liu <liuj97@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Wen Congyang <wency@cn.fujitsu.com>,
David Rientjes <rientjes@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>,
Maciej Rutecki <maciej.rutecki@gmail.com>,
Chris Clayton <chris2553@googlemail.com>,
"Rafael J . Wysocki" <rjw@sisk.pl>, Mel Gorman <mgorman@suse.de>,
Minchan Kim <minchan@kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal Hocko <mhocko@suse.cz>, Jianguo Wu <wujianguo@huawei.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [RESEND PATCH v3 2/3] mm: set zone->present_pages to number of existing pages in the zone
Date: Tue, 15 Jan 2013 23:18:16 +0800 [thread overview]
Message-ID: <1358263097-11038-2-git-send-email-jiang.liu@huawei.com> (raw)
In-Reply-To: <1358263097-11038-1-git-send-email-jiang.liu@huawei.com>
Now all users of "number of pages managed by the buddy system" have been
converted to use zone->managed_pages, so set zone->present_pages to what
it should be:
present_pages = spanned_pages - absent_pages;
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fed01fd..595e655 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4565,7 +4565,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat,
nr_all_pages += freesize;
zone->spanned_pages = size;
- zone->present_pages = freesize;
+ zone->present_pages = realsize;
/*
* Set an approximate value for lowmem here, it will be adjusted
* when the bootmem allocator frees pages into the buddy system.
--
1.7.9.5
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next prev parent reply other threads:[~2013-01-15 15:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 15:18 [RESEND PATCH v3 1/3] mm: use zone->present_pages instead of zone->managed_pages when appreciated Jiang Liu
2013-01-15 15:18 ` Jiang Liu [this message]
2013-01-15 15:18 ` [RESEND PATCH v3 3/3] mm: increase totalram_pages when free pages allocated by bootmem allocator Jiang Liu
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