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    Subject[PATCH 2/13] affs: use zero_user_page
    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;
    -
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