[PATCH] md: Add '4' to the list of levels for which bitmaps are supported

I really should make this a function of the personality....

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, 1 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 3254ff1a5cc9..875bced88e36 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -765,7 +765,8 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
 
                 if (sb->state & (1<<MD_SB_BITMAP_PRESENT) &&
                     mddev->bitmap_file == NULL) {
-                        if (mddev->level != 1 && mddev->level != 5 && mddev->level != 6
+                        if (mddev->level != 1 && mddev->level != 4
+                            && mddev->level != 5 && mddev->level != 6
                             && mddev->level != 10) {
                                 /* FIXME use a better test */
                                 printk(KERN_WARNING "md: bitmaps not supported for this level.\n");