[PATCH] md: don't pass a NULL file* into ->prepare_write()

Some filesystems go oops.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 51315302a85e..252d55df9642 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -326,9 +326,9 @@ static int write_page(struct bitmap *bitmap, struct page *page, int wait)
                 }
         }
 
-        ret = page->mapping->a_ops->prepare_write(NULL, page, 0, PAGE_SIZE);
+        ret = page->mapping->a_ops->prepare_write(bitmap->file, page, 0, PAGE_SIZE);
         if (!ret)
-                ret = page->mapping->a_ops->commit_write(NULL, page, 0,
+                ret = page->mapping->a_ops->commit_write(bitmap->file, page, 0,
                         PAGE_SIZE);
         if (ret) {
                 unlock_page(page);