linux-kernel - [PATCH v1 2/3] hv_balloon: Use generic_online

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Date:   Mon,  9 Sep 2019 13:48:29 +0200
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, Souptick Joarder <jrdr.linux@...il.com>,
        linux-hyperv@...r.kernel.org, David Hildenbrand <david@...hat.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH v1 2/3] hv_balloon: Use generic_online_page()

Let's use the generic onlining function - which will now also take care
of calling kernel_map_pages().

Cc: "K. Y. Srinivasan" <kys@...rosoft.com>
Cc: Haiyang Zhang <haiyangz@...rosoft.com>
Cc: Stephen Hemminger <sthemmin@...rosoft.com>
Cc: Sasha Levin <sashal@...nel.org>
Signed-off-by: David Hildenbrand <david@...hat.com>
---
 drivers/hv/hv_balloon.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index a91c90d4402c..35f123b459c8 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -680,8 +680,7 @@ static void hv_page_online_one(struct hv_hotadd_state *has, struct page *pg)
 		__ClearPageOffline(pg);
 
 	/* This frame is currently backed; online the page. */
-	__online_page_increment_counters(pg);
-	__online_page_free(pg);
+	generic_online_page(pg, 0);
 
 	lockdep_assert_held(&dm_device.ha_lock);
 	dm_device.num_pages_onlined++;
-- 
2.21.0