diff options
Diffstat (limited to 'sys/dev/dm/dm_target_error.c')
| -rw-r--r-- | sys/dev/dm/dm_target_error.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/sys/dev/dm/dm_target_error.c b/sys/dev/dm/dm_target_error.c new file mode 100644 index 00000000000..09efdf703ea --- /dev/null +++ b/sys/dev/dm/dm_target_error.c @@ -0,0 +1,99 @@ +/* $NetBSD: dm_target_error.c,v 1.2 2008/12/19 15:24:03 haad Exp $ */ + +/* + * Copyright (c) 2008 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Adam Hamsik. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This file implements initial version of device-mapper error target. + */ +#include <sys/types.h> +#include <sys/param.h> + +#include <sys/buf.h> + +#include "dm.h" + +/* Init function called from dm_table_load_ioctl. */ +int +dm_target_error_init(dm_dev_t *dmv, void **target_config, char *argv) +{ + + printf("Error target init function called!!\n"); + + *target_config = NULL; + + dmv->dev_type = DM_ERROR_DEV; + + return 0; +} + +/* Status routine called to get params string. */ +char * +dm_target_error_status(void *target_config) +{ + return NULL; +} + +/* Strategy routine called from dm_strategy. */ +int +dm_target_error_strategy(dm_table_entry_t *table_en, struct buf *bp) +{ + + printf("Error target read function called!!\n"); + + bp->b_error = EIO; + bp->b_resid = 0; + + biodone(bp); + + return 0; +} + +/* Doesn't do anything here. */ +int +dm_target_error_destroy(dm_table_entry_t *table_en) +{ + table_en->target_config = NULL; + + return 0; +} + +/* Doesn't not need to do anything here. */ +int +dm_target_error_deps(dm_table_entry_t *table_en, prop_array_t prop_array) +{ + return 0; +} + +/* Unsupported for this target. */ +int +dm_target_error_upcall(dm_table_entry_t *table_en, struct buf *bp) +{ + return 0; +} |
