 @@ -1,14 +1,14 @@
-/*        $NetBSD: dm.h,v 1.36 2019/12/08 10:35:53 tkusumi Exp $      */
+/*        $NetBSD: dm.h,v 1.37 2019/12/08 10:50:21 tkusumi 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.
 @@ -160,65 +160,26 @@ typedef struct target_linear_config {
 	TAILQ_ENTRY(target_linear_config) entries;
 } dm_target_linear_config_t;
 /*
  * Striping devices are stored in a linked list, this might be inefficient
  * for more than 8 striping devices and can be changed to something more
  * scalable.
  * TODO: look for other options than linked list.
  */
 TAILQ_HEAD(target_linear_devs, target_linear_config);
 typedef struct target_linear_devs dm_target_linear_devs_t;
 /* for stripe : */
 typedef struct target_stripe_config {
 #define DM_STRIPE_DEV_OFFSET 2
 	struct target_linear_devs stripe_devs;
 	uint8_t stripe_num;
 	uint64_t stripe_chunksize;
 	size_t params_len;
 } dm_target_stripe_config_t;
 /* for mirror : */
 typedef struct target_mirror_config {
 #define MAX_MIRROR_COPIES 4
 	dm_pdev_t *orig;
 	dm_pdev_t *copies[MAX_MIRROR_COPIES];
 	/* copied blocks bitmaps administration etc*/
 	dm_pdev_t *log_pdev;	/* for administration */
 	uint64_t log_regionsize;	/* blocksize of mirror */
 	/* list of parts that still need copied etc.; run length encoded? */
 } dm_target_mirror_config_t;
 /* for snapshot : */
 typedef struct target_snapshot_config {
 	dm_pdev_t *tsc_snap_dev;
 	/* cow dev is set only for persistent snapshot devices */
 	dm_pdev_t *tsc_cow_dev;
 	uint64_t tsc_chunk_size;
 	uint32_t tsc_persistent_dev;
 } dm_target_snapshot_config_t;
 /* for snapshot-origin devices */
 typedef struct target_snapshot_origin_config {
 	dm_pdev_t *tsoc_real_dev;
 	/* list of snapshots ? */
 } dm_target_snapshot_origin_config_t;
 /* constant dm_target structures for error, zero, linear, stripes etc. */
 typedef struct dm_target {
 	char name[DM_MAX_TYPE_NAME];
 	/* Initialize target_config area */
 	int (*init)(dm_table_entry_t *, char *);
 	/* Destroy target_config area */
 	int (*destroy)(dm_table_entry_t *);
 	int (*deps) (dm_table_entry_t *, prop_array_t);
 	/*
 	 * Status routine is called to get params string, which is target
 	 * specific. When dm_table_status_ioctl is called with flag

 @@ -1,14 +1,14 @@
-/*$NetBSD: dm_target_mirror.c,v 1.15 2019/12/08 04:41:02 tkusumi Exp $*/
+/*$NetBSD: dm_target_mirror.c,v 1.16 2019/12/08 10:50:21 tkusumi Exp $*/
 /*
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
  * All rights reserved.
+ *
  * This code is derived from software contributed to The NetBSD Foundation
  * by Adam Hamsik.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
 @@ -19,47 +19,59 @@
  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dm_target_mirror.c,v 1.15 2019/12/08 04:41:02 tkusumi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dm_target_mirror.c,v 1.16 2019/12/08 10:50:21 tkusumi Exp $");
 /*
  * This file implements initial version of device-mapper mirror target.
  */
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/buf.h>
 #include "dm.h"
 /* dm_target_mirror.c */
 int dm_target_mirror_init(dm_table_entry_t *, char *);
 char *dm_target_mirror_status(void *);
 int dm_target_mirror_strategy(dm_table_entry_t *, struct buf *);
 int dm_target_mirror_sync(dm_table_entry_t *);
 int dm_target_mirror_deps(dm_table_entry_t *, prop_array_t);
 int dm_target_mirror_destroy(dm_table_entry_t *);
 int dm_target_mirror_upcall(dm_table_entry_t *, struct buf *);
 typedef struct target_mirror_config {
 #define MAX_MIRROR_COPIES 4
 	dm_pdev_t *orig;
 	dm_pdev_t *copies[MAX_MIRROR_COPIES];
 	/* copied blocks bitmaps administration etc*/
 	dm_pdev_t *log_pdev;	/* for administration */
 	uint64_t log_regionsize;	/* blocksize of mirror */
 	/* list of parts that still need copied etc.; run length encoded? */
 } dm_target_mirror_config_t;
 #ifdef DM_TARGET_MODULE
 /*
  * Every target can be compiled directly to dm driver or as a
  * separate module this part of target is used for loading targets
  * to dm driver.
  * Target can be unloaded from kernel only if there are no users of
  * it e.g. there are no devices which uses that target.
  */
 #include <sys/kernel.h>
 #include <sys/module.h>
 MODULE(MODULE_CLASS_MISC, dm_target_mirror, "dm");

 @@ -1,14 +1,14 @@
-/*        $NetBSD: dm_target_snapshot.c,v 1.27 2019/12/08 10:35:53 tkusumi Exp $      */
+/*        $NetBSD: dm_target_snapshot.c,v 1.28 2019/12/08 10:50:21 tkusumi 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.
 @@ -19,27 +19,27 @@
  * 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.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dm_target_snapshot.c,v 1.27 2019/12/08 10:35:53 tkusumi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dm_target_snapshot.c,v 1.28 2019/12/08 10:50:21 tkusumi Exp $");
 /*
  * 1. Suspend my_data to temporarily stop any I/O while the snapshot is being
  * activated.
  * dmsetup suspend my_data
+ *
  * 2. Create the snapshot-origin device with no table.
  * dmsetup create my_data_org
+ *
  * 3. Read the table from my_data and load it into my_data_org.
  * dmsetup table my_data | dmsetup load my_data_org
+ *
  * 4. Resume this new table.
 @@ -93,26 +93,40 @@ int dm_target_snapshot_strategy(dm_table
 int dm_target_snapshot_deps(dm_table_entry_t *, prop_array_t);
 int dm_target_snapshot_destroy(dm_table_entry_t *);
 int dm_target_snapshot_upcall(dm_table_entry_t *, struct buf *);
 /* dm snapshot origin driver */
 int dm_target_snapshot_orig_init(dm_table_entry_t *, char *);
 char *dm_target_snapshot_orig_status(void *);
 int dm_target_snapshot_orig_strategy(dm_table_entry_t *, struct buf *);
 int dm_target_snapshot_orig_sync(dm_table_entry_t *);
 int dm_target_snapshot_orig_deps(dm_table_entry_t *, prop_array_t);
 int dm_target_snapshot_orig_destroy(dm_table_entry_t *);
 int dm_target_snapshot_orig_upcall(dm_table_entry_t *, struct buf *);
 typedef struct target_snapshot_config {
 	dm_pdev_t *tsc_snap_dev;
 	/* cow dev is set only for persistent snapshot devices */
 	dm_pdev_t *tsc_cow_dev;
 	uint64_t tsc_chunk_size;
 	uint32_t tsc_persistent_dev;
 } dm_target_snapshot_config_t;
 typedef struct target_snapshot_origin_config {
 	dm_pdev_t *tsoc_real_dev;
 	/* list of snapshots ? */
 } dm_target_snapshot_origin_config_t;
 #ifdef DM_TARGET_MODULE
 /*
  * Every target can be compiled directly to dm driver or as a
  * separate module this part of target is used for loading targets
  * to dm driver.
  * Target can be unloaded from kernel only if there are no users of
  * it e.g. there are no devices which uses that target.
  */
 #include <sys/kernel.h>
 #include <sys/module.h>
 MODULE(MODULE_CLASS_MISC, dm_target_snapshot, "dm");

 @@ -1,14 +1,14 @@
-/*$NetBSD: dm_target_stripe.c,v 1.31 2019/12/08 04:41:02 tkusumi Exp $*/
+/*$NetBSD: dm_target_stripe.c,v 1.32 2019/12/08 10:50:21 tkusumi Exp $*/
 /*
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
  * All rights reserved.
+ *
  * This code is derived from software contributed to The NetBSD Foundation
  * by Adam Hamsik.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
 @@ -19,40 +19,48 @@
  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dm_target_stripe.c,v 1.31 2019/12/08 04:41:02 tkusumi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dm_target_stripe.c,v 1.32 2019/12/08 10:50:21 tkusumi Exp $");
 /*
  * This file implements initial version of device-mapper stripe target.
  */
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/buf.h>
 #include <sys/kmem.h>
 #include <sys/lwp.h>
 #include "dm.h"
 typedef struct target_stripe_config {
 #define DM_STRIPE_DEV_OFFSET 2
 	struct target_linear_devs stripe_devs;
 	uint8_t stripe_num;
 	uint64_t stripe_chunksize;
 	size_t params_len;
 } dm_target_stripe_config_t;
 #ifdef DM_TARGET_MODULE
 /*
  * Every target can be compiled directly to dm driver or as a
  * separate module this part of target is used for loading targets
  * to dm driver.
  * Target can be unloaded from kernel only if there are no users of
  * it e.g. there are no devices which uses that target.
  */
 #include <sys/kernel.h>
 #include <sys/module.h>
 MODULE(MODULE_CLASS_MISC, dm_target_stripe, NULL);