240 	if (sbi->devs->extra_devices &&  in erofs_scan_devices()
241 	    ondisk_extradevs != sbi->devs->extra_devices) {  in erofs_scan_devices()
243 			  ondisk_extradevs, sbi->devs->extra_devices);  in erofs_scan_devices()
251 	down_read(&sbi->devs->rwsem);  in erofs_scan_devices()
252 	if (sbi->devs->extra_devices) {  in erofs_scan_devices()
253 		idr_for_each_entry(&sbi->devs->tree, dif, id) {  in erofs_scan_devices()
266 			err = idr_alloc(&sbi->devs->tree, dif, 0, 0, GFP_KERNEL);  in erofs_scan_devices()
271 			++sbi->devs->extra_devices;  in erofs_scan_devices()
278 	up_read(&sbi->devs->rwsem);  in erofs_scan_devices()
513 		down_write(&ctx->devs->rwsem);  in erofs_fc_parse_param()
514 		ret = idr_alloc(&ctx->devs->tree, dif, 0, 0, GFP_KERNEL);  in erofs_fc_parse_param()
515 		up_write(&ctx->devs->rwsem);  in erofs_fc_parse_param()
521 		++ctx->devs->extra_devices;  in erofs_fc_parse_param()
611 	sbi->devs = ctx->devs;  in erofs_fc_fill_super()
612 	ctx->devs = NULL;  in erofs_fc_fill_super()
770 static void erofs_free_dev_context(struct erofs_dev_context *devs)  in erofs_free_dev_context()  argument
772 	if (!devs)  in erofs_free_dev_context()
774 	idr_for_each(&devs->tree, &erofs_release_device_info, NULL);  in erofs_free_dev_context()
775 	idr_destroy(&devs->tree);  in erofs_free_dev_context()
776 	kfree(devs);  in erofs_free_dev_context()
783 	erofs_free_dev_context(ctx->devs);  in erofs_fc_free()
813 	ctx->devs = kzalloc(sizeof(struct erofs_dev_context), GFP_KERNEL);  in erofs_init_fs_context()
814 	if (!ctx->devs) {  in erofs_init_fs_context()
820 	idr_init(&ctx->devs->tree);  in erofs_init_fs_context()
821 	init_rwsem(&ctx->devs->rwsem);  in erofs_init_fs_context()
852 	erofs_free_dev_context(sbi->devs);  in erofs_kill_sb()