xfs: require both realtime inodes to mount

From: Darrick J. Wong <[email protected]>

Since mkfs always formats the filesystem with the realtime bitmap and summary inodes immediately after the root directory, we should expect that both of them are present and loadable, even if there isn't a realtime volume attached. There's no reason to skip this if rbmino == NULLFSINO; in fact, this causes an immediate crash if the there /is/ a realtime volume and someone writes to it.

Signed-off-by Darrick J. Wong <[email protected]>

---

 fs/xfs/xfs_rtalloc.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

fs/xfs/xfs_rtalloc.c +1 -3

index aefd63d46397..afe4d29f7ab4 100644
@@ -1206,13 +1206,11 @@ xfs_rtmount_inodes(
 	xfs_sb_t	*sbp;
 
 	sbp = &mp->m_sb;
-	if (sbp->sb_rbmino == NULLFSINO)
-		return 0;
 	error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip);
 	if (error)
 		return error;
 	ASSERT(mp->m_rbmip != NULL);
-	ASSERT(sbp->sb_rsumino != NULLFSINO);
+
 	error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip);
 	if (error) {
 		xfs_irele(mp->m_rbmip);