From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nate Diller <nate.diller@gmail.com>
Subject: [PATCH 2/13] affs: use zero_user_page
Date: Tue, 10 Apr 2007 20:36:00 -0700
Message-ID: <20070411033600.11000.45155.patchbomb.py@localhost>
References: <20070411033600.11000.38285.patchbomb.py@localhost>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
To: Andrew Morton <akpm@osdl.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>
Return-path: <linux-kernel-owner+glk-linux-kernel-3=40m.gmane.org-S1030767AbXDKDlq@vger.kernel.org>
In-Reply-To: <20070411033600.11000.38285.patchbomb.py@localhost>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: linux-fsdevel.vger.kernel.org

Use zero_user_page() instead of open-coding it.

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

---

diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/affs/file.c linux-2.6.21-rc6-mm1-test/fs/affs/file.c
--- linux-2.6.21-rc6-mm1/fs/affs/file.c	2007-04-09 17:23:48.000000000 -0700
+++ linux-2.6.21-rc6-mm1-test/fs/affs/file.c	2007-04-09 18:18:23.000000000 -0700
@@ -628,11 +628,7 @@ static int affs_prepare_write_ofs(struct
 			return err;
 	}
 	if (to < PAGE_CACHE_SIZE) {
-		char *kaddr = kmap_atomic(page, KM_USER0);
-
-		memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
-		flush_dcache_page(page);
-		kunmap_atomic(kaddr, KM_USER0);
+		zero_user_page(page, to, PAGE_CACHE_SIZE - to);
 		if (size > offset + to) {
 			if (size < offset + PAGE_CACHE_SIZE)
 				tmp = size & ~PAGE_CACHE_MASK;