[PATCH] fat: kill unnecessary kmap()

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/fat/inode.c

@@ -1137,30 +1137,22 @@ static int
 fat_prepare_write(struct file *file, struct page *page,
 			unsigned from, unsigned to)
 {
-	kmap(page);
 	return cont_prepare_write(page,from,to,fat_get_block,
 		&MSDOS_I(page->mapping->host)->mmu_private);
 }
 
-static int
-fat_commit_write(struct file *file, struct page *page,
-			unsigned from, unsigned to)
-{
-	kunmap(page);
-	return generic_commit_write(file, page, from, to);
-}
-
 static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
 {
 	return generic_block_bmap(mapping,block,fat_get_block);
 }
+
 static struct address_space_operations fat_aops = {
-	.readpage = fat_readpage,
-	.writepage = fat_writepage,
-	.sync_page = block_sync_page,
-	.prepare_write = fat_prepare_write,
-	.commit_write = fat_commit_write,
-	.bmap = _fat_bmap
+	.readpage	= fat_readpage,
+	.writepage	= fat_writepage,
+	.sync_page	= block_sync_page,
+	.prepare_write	= fat_prepare_write,
+	.commit_write	= generic_commit_write,
+	.bmap		= _fat_bmap
 };
 
 /* doesn't deal with root inode */