285 	if (sbi->devs->extra_devices &&  in erofs_scan_devices()
286 	    ondisk_extradevs != sbi->devs->extra_devices) {  in erofs_scan_devices()
288 			  ondisk_extradevs, sbi->devs->extra_devices);  in erofs_scan_devices()
296 	down_read(&sbi->devs->rwsem);  in erofs_scan_devices()
297 	if (sbi->devs->extra_devices) {  in erofs_scan_devices()
298 		idr_for_each_entry(&sbi->devs->tree, dif, id) {  in erofs_scan_devices()
311 			err = idr_alloc(&sbi->devs->tree, dif, 0, 0, GFP_KERNEL);  in erofs_scan_devices()
316 			++sbi->devs->extra_devices;  in erofs_scan_devices()
323 	up_read(&sbi->devs->rwsem);  in erofs_scan_devices()
570 		down_write(&ctx->devs->rwsem);  in erofs_fc_parse_param()
571 		ret = idr_alloc(&ctx->devs->tree, dif, 0, 0, GFP_KERNEL);  in erofs_fc_parse_param()
572 		up_write(&ctx->devs->rwsem);  in erofs_fc_parse_param()
578 		++ctx->devs->extra_devices;  in erofs_fc_parse_param()
731 	sbi->devs = ctx->devs;  in erofs_fc_fill_super()
732 	ctx->devs = NULL;  in erofs_fc_fill_super()
867 static void erofs_free_dev_context(struct erofs_dev_context *devs)  in erofs_free_dev_context()  argument
869 	if (!devs)  in erofs_free_dev_context()
871 	idr_for_each(&devs->tree, &erofs_release_device_info, NULL);  in erofs_free_dev_context()
872 	idr_destroy(&devs->tree);  in erofs_free_dev_context()
873 	kfree(devs);  in erofs_free_dev_context()
880 	erofs_free_dev_context(ctx->devs);  in erofs_fc_free()
910 	ctx->devs = kzalloc(sizeof(struct erofs_dev_context), GFP_KERNEL);  in erofs_init_fs_context()
911 	if (!ctx->devs) {  in erofs_init_fs_context()
917 	idr_init(&ctx->devs->tree);  in erofs_init_fs_context()
918 	init_rwsem(&ctx->devs->rwsem);  in erofs_init_fs_context()
949 	erofs_free_dev_context(sbi->devs);  in erofs_kill_sb()