linux-kernel - [PATCH 9/13] ocfs2: use zero_user

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Date:	Tue, 10 Apr 2007 20:36:00 -0700
From:	Nate Diller <nate.diller@...il.com>
To:	Andrew Morton <akpm@...l.org>,
	Alexander Viro <viro@...iv.linux.org.uk>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH 9/13] ocfs2: use zero_user_page

Use zero_user_page() instead of open-coding it. 

Signed-off-by: Nate Diller <nate.diller@...il.com>

--- 

diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ocfs2/aops.c linux-2.6.21-rc6-mm1-test/fs/ocfs2/aops.c
--- linux-2.6.21-rc6-mm1/fs/ocfs2/aops.c	2007-04-09 17:24:03.000000000 -0700
+++ linux-2.6.21-rc6-mm1-test/fs/ocfs2/aops.c	2007-04-09 18:18:23.000000000 -0700
@@ -234,10 +234,7 @@ static int ocfs2_readpage(struct file *f
 	 * XXX sys_readahead() seems to get that wrong?
 	 */
 	if (start >= i_size_read(inode)) {
-		char *addr = kmap(page);
-		memset(addr, 0, PAGE_SIZE);
-		flush_dcache_page(page);
-		kunmap(page);
+		zero_user_page(page, 0, PAGE_SIZE);
 		SetPageUptodate(page);
 		ret = 0;
 		goto out_alloc;
-
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