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From: Joonsoo Kim <js1304@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Joonsoo Kim <js1304@gmail.com>
Subject: [PATCH 5/5] mm, highmem: get virtual address of the page using PKMAP_ADDR()
Date: Mon, 29 Oct 2012 04:12:56 +0900
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In flush_all_zero_pkmaps(), we have an index of the pkmap associated the page.
Using this index, we can simply get virtual address of the page.
So change it.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>

diff --git a/mm/highmem.c b/mm/highmem.c
index 65beb9a..1417f4f 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -137,8 +137,7 @@ static int flush_all_zero_pkmaps(void)
 		 * So no dangers, even with speculative execution.
 		 */
 		page = pte_page(pkmap_page_table[i]);
-		pte_clear(&init_mm, (unsigned long)page_address(page),
-			  &pkmap_page_table[i]);
+		pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
 
 		set_page_address(page, NULL);
 		index = i;
-- 
1.7.9.5


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From: Joonsoo Kim <js1304@gmail.com>
Subject: [PATCH 5/5] mm, highmem: get virtual address of the page using PKMAP_ADDR()
Date: Mon, 29 Oct 2012 04:12:56 +0900
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 <1351451576-2611-1-git-send-email-js1304@gmail.com>
Sender: owner-linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Joonsoo Kim <js1304@gmail.com>

In flush_all_zero_pkmaps(), we have an index of the pkmap associated the page.
Using this index, we can simply get virtual address of the page.
So change it.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>

diff --git a/mm/highmem.c b/mm/highmem.c
index 65beb9a..1417f4f 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -137,8 +137,7 @@ static int flush_all_zero_pkmaps(void)
 		 * So no dangers, even with speculative execution.
 		 */
 		page = pte_page(pkmap_page_table[i]);
-		pte_clear(&init_mm, (unsigned long)page_address(page),
-			  &pkmap_page_table[i]);
+		pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
 
 		set_page_address(page, NULL);
 		index = i;
-- 
1.7.9.5

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