232 	/* Hack!  Reuse ofs->layers as a vfsmount array before freeing it */  in ovl_free_fs()
233 	mounts = (struct vfsmount **) ofs->layers;  in ovl_free_fs()
235 		iput(ofs->layers[i].trap);  in ovl_free_fs()
236 		mounts[i] = ofs->layers[i].mnt;  in ovl_free_fs()
239 	kfree(ofs->layers);  in ovl_free_fs()
894 	 * file handles, so they require that all layers support them.  in ovl_lower_dir()
1127 		pr_err("upper fs is r/o, try multi-lower layers mount\n");  in ovl_get_upper()
1528 		 * as all lower layers with null uuid are on the same fs.  in ovl_lower_uuid_ok()
1582 			  struct ovl_layer *layers)  in ovl_get_layers()  argument
1596 	 * All lower layers that share the same fs as upper layer, use the same  in ovl_get_layers()
1622 		 * Check if lower root conflicts with this overlay layers before  in ovl_get_layers()
1649 		 * Make lower layers R/O.  That way fchmod/fchown on lower file  in ovl_get_layers()
1654 		layers[ofs->numlayer].trap = trap;  in ovl_get_layers()
1655 		layers[ofs->numlayer].mnt = mnt;  in ovl_get_layers()
1656 		layers[ofs->numlayer].idx = ofs->numlayer;  in ovl_get_layers()
1657 		layers[ofs->numlayer].fsid = fsid;  in ovl_get_layers()
1658 		layers[ofs->numlayer].fs = &ofs->fs[fsid];  in ovl_get_layers()
1664 	 * When all layers on same fs, overlay can use real inode numbers.  in ovl_get_layers()
1674 			pr_info("\"xino=on\" is useless with all layers on same fs, ignore.\n");  in ovl_get_layers()
1702 				struct ovl_fs *ofs, struct ovl_layer *layers)  in ovl_get_lowerstack()  argument
1734 	err = ovl_get_layers(sb, ofs, stack, numlower, layers);  in ovl_get_lowerstack()
1745 		oe->lowerstack[i].layer = &ofs->layers[i+1];  in ovl_get_lowerstack()
1796  * Check if any of the layers or work dirs overlap.
1824 				      ofs->layers[i].mnt->mnt_root,  in ovl_check_overlapping_layers()
1877 	struct ovl_layer *layers;  in ovl_fill_super()  local
1924 	layers = kcalloc(numlower + 1, sizeof(struct ovl_layer), GFP_KERNEL);  in ovl_fill_super()
1925 	if (!layers)  in ovl_fill_super()
1928 	ofs->layers = layers;  in ovl_fill_super()
1955 		err = ovl_get_upper(sb, ofs, &layers[0], &upperpath);  in ovl_fill_super()
1979 	oe = ovl_get_lowerstack(sb, splitlower, numlower, ofs, layers);  in ovl_fill_super()