linux-kernel - [PATCH V2 1/3] mm: Export split

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Message-Id: <1363639898-1615-1-git-send-email-kys@microsoft.com>
Date:	Mon, 18 Mar 2013 13:51:36 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	andi@...stfloor.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
	kamezawa.hiroyuki@...il.com, mhocko@...e.cz, hannes@...xchg.org,
	yinghan@...gle.com
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH V2 1/3]  mm: Export split_page()

This symbol would be used in the Hyper-V balloon driver to support 2M
allocations.

In this version of the patch, based on feedback from Michal Hocko
<mhocko@...e.cz>, I have updated the patch description.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 mm/page_alloc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6cacfee..7e0ead6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1404,6 +1404,7 @@ void split_page(struct page *page, unsigned int order)
 	for (i = 1; i < (1 << order); i++)
 		set_page_refcounted(page + i);
 }
+EXPORT_SYMBOL_GPL(split_page);
 
 static int __isolate_free_page(struct page *page, unsigned int order)
 {
-- 
1.7.4.1

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