affs: use zero_user_page
Nate Diller [Wed, 9 May 2007 09:35:07 +0000 (02:35 -0700)]
Use zero_user_page() instead of open-coding it.

Signed-off-by: Nate Diller <nate.diller@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/affs/file.c

index 4aa8079..c879690 100644 (file)
@@ -628,11 +628,7 @@ static int affs_prepare_write_ofs(struct file *file, struct page *page, unsigned
                        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, KM_USER0);
                if (size > offset + to) {
                        if (size < offset + PAGE_CACHE_SIZE)
                                tmp = size & ~PAGE_CACHE_MASK;