xfs: remove xfs_ifree_local_data

xfs_ifree only need to free inline data in the data fork, as we've
already taken care of the attr fork before (and in fact freed the
fork structure).  Just open code the freeing of the inline data.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_inode.c

@@ -2711,24 +2711,6 @@ xfs_ifree_cluster(
 	return 0;
 }
 
-/*
- * Free any local-format buffers sitting around before we reset to
- * extents format.
- */
-static inline void
-xfs_ifree_local_data(
-	struct xfs_inode	*ip,
-	int			whichfork)
-{
-	struct xfs_ifork	*ifp;
-
-	if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL)
-		return;
-
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);
-}
-
 /*
  * This is called to return an inode to the inode free list.
  * The inode should already be truncated to 0 length and have
@@ -2765,8 +2747,16 @@ xfs_ifree(
 	if (error)
 		return error;
 
-	xfs_ifree_local_data(ip, XFS_DATA_FORK);
-	xfs_ifree_local_data(ip, XFS_ATTR_FORK);
+	/*
+	 * Free any local-format data sitting around before we reset the
+	 * data fork to extents format.  Note that the attr fork data has
+	 * already been freed by xfs_attr_inactive.
+	 */
+	if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+		kmem_free(ip->i_df.if_u1.if_data);
+		ip->i_df.if_u1.if_data = NULL;
+		ip->i_df.if_bytes = 0;
+	}
 
 	VFS_I(ip)->i_mode = 0;		/* mark incore inode as free */
 	ip->i_d.di_flags = 0;