Merge tag 'xfs-4.15-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:

- Fix a memory leak in the new in-core extent map

- Refactor the xfs_dev_t conversions for easier xfsprogs porting

* tag 'xfs-4.15-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: abstract out dev_t conversions
xfs: fix memory leak in xfs_iext_free_last_leaf

fs/xfs/libxfs/xfs_iext_tree.c

···
 xfs_iext_free_last_leaf(
 	struct xfs_ifork	*ifp)
 {
-	ifp->if_u1.if_root = NULL;
 	ifp->if_height--;
 	kmem_free(ifp->if_u1.if_root);
+	ifp->if_u1.if_root = NULL;
 }
 
 void

fs/xfs/libxfs/xfs_inode_fork.c

···
 STATIC int xfs_iformat_extents(xfs_inode_t *, xfs_dinode_t *, int);
 STATIC int xfs_iformat_btree(xfs_inode_t *, xfs_dinode_t *, int);
 
-static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev)
-{
-	return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
-}
-
 /*
  * Copy inode type and data and attr format specific information from the
  * on-disk inode to the in-core inode and fork structures.  For fifos, devices,
···
 	case XFS_DINODE_FMT_DEV:
 		if (iip->ili_fields & XFS_ILOG_DEV) {
 			ASSERT(whichfork == XFS_DATA_FORK);
-			xfs_dinode_put_rdev(dip, sysv_encode_dev(VFS_I(ip)->i_rdev));
+			xfs_dinode_put_rdev(dip,
+					linux_to_xfs_dev_t(VFS_I(ip)->i_rdev));
 		}
 		break;
 

fs/xfs/xfs_linux.h

···
 	return make_kgid(&init_user_ns, gid);
 }
 
+static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev)
+{
+	return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
+}
+
+static inline xfs_dev_t linux_to_xfs_dev_t(dev_t dev)
+{
+	return sysv_encode_dev(dev);
+}
+
 /*
  * Various platform dependent calls that don't fit anywhere else
  */