[PATCH 2/4] xfs: Fix SB_BORN check in xfs_dax_notify_failure()

[Dan Williams <dan.j.williams@xxxxxxxxx>]

The SB_BORN flag is stored in the vfs superblock, not xfs_sb.

Fixes: 6f643c57d57c ("xfs: implement ->notify_failure() for XFS")
Cc: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Darrick J. Wong <djwong@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: Goldwyn Rodrigues <rgoldwyn@xxxxxxx>
Cc: Jane Chu <jane.chu@xxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Cc: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
 fs/xfs/xfs_notify_failure.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_notify_failure.c b/fs/xfs/xfs_notify_failure.c
index 01e2721589c4..5b1f9a24ed59 100644
--- a/fs/xfs/xfs_notify_failure.c
+++ b/fs/xfs/xfs_notify_failure.c
@@ -175,7 +175,7 @@ xfs_dax_notify_failure(
 	u64			ddev_start;
 	u64			ddev_end;
 
-	if (!(mp->m_sb.sb_flags & SB_BORN)) {
+	if (!(mp->m_super->s_flags & SB_BORN)) {
 		xfs_warn(mp, "filesystem is not ready for notify_failure()!");
 		return -EIO;
 	}