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-rw-r--r--fs/cifs/file.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index b67f1da020be..0620feaaea66 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);
SetPageUptodate(page);
} else if ((file->f_flags & O_ACCMODE) != O_WRONLY) {
/* might as well read a page, it is fast enough */