Commit:     8803863a9051582081fb2bcca3a6dc8fddaed93c
Parent:     4a379e6657ae2dd910f9f06d46bd7c05fbe9ed5c
Author:     Nate <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 16 15:45:13 2007 +0000
Committer:  Steve French <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 15:45:13 2007 +0000

    [CIFS] use simple_prepare_write to zero page data
    It's common for file systems to need to zero data on either side of a
    write, if a page is not Uptodate during prepare_write.  It just so happens
    that simple_prepare_write() in libfs.c does exactly that, so we can avoid
    duplication and just call that function to zero page data.
    Signed-off-by: Nate Diller <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Steve French <[EMAIL PROTECTED]>
 fs/cifs/file.c |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index b67f1da..0620fea 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1966,14 +1966,7 @@ static int cifs_prepare_write(struct file *file, struct 
page *page,
                 * We don't need to read data beyond the end of the file.
                 * zero it, and set the page uptodate
-               void *kaddr = kmap_atomic(page, KM_USER0);
-               if (from)
-                       memset(kaddr, 0, from);
-               if (to < PAGE_CACHE_SIZE)
-                       memset(kaddr + to, 0, PAGE_CACHE_SIZE - to);
-               flush_dcache_page(page);
-               kunmap_atomic(kaddr, KM_USER0);
+               simple_prepare_write(file, page, from, to);
        } else if ((file->f_flags & O_ACCMODE) != O_WRONLY) {
                /* might as well read a page, it is fast enough */
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