Module Name:    src
Committed By:   haad
Date:           Sun Dec  6 14:33:47 UTC 2009

Modified Files:
        src/sys/dev/dm: device-mapper.c dm_ioctl.c

Log Message:
Add support for DM_QUERY_INACTIVE_TABLE_FLAG to dm_table_status and 
dm_table_deps
this flag was introduced to dm->lvm protocol in 4.16.0 version of it. Restore
vrsion check functionality and sent back actual kernel driver version.


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/dev/dm/device-mapper.c
cvs rdiff -u -r1.16 -r1.17 src/sys/dev/dm/dm_ioctl.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/dm/device-mapper.c
diff -u src/sys/dev/dm/device-mapper.c:1.9 src/sys/dev/dm/device-mapper.c:1.10
--- src/sys/dev/dm/device-mapper.c:1.9	Fri Oct 16 21:23:08 2009
+++ src/sys/dev/dm/device-mapper.c	Sun Dec  6 14:33:46 2009
@@ -1,4 +1,4 @@
-/*        $NetBSD: device-mapper.c,v 1.9 2009/10/16 21:23:08 joerg Exp $ */
+/*        $NetBSD: device-mapper.c,v 1.10 2009/12/06 14:33:46 haad Exp $ */
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -228,14 +228,17 @@
 		if((r = prop_dictionary_copyin_ioctl(pref, cmd, &dm_dict_in)) != 0)
 			return r;
 
-		dm_check_version(dm_dict_in);
+		if ((r = dm_check_version(dm_dict_in)) != 0) {
+			    prop_object_release(dm_dict_in);
+			    return r;
+		}
 
 		/* call cmd selected function */
 		if ((r = dm_ioctl_switch(cmd)) != 0) {
 			prop_object_release(dm_dict_in);
 			return r;
 		}
-		
+		    
 		/* run ioctl routine */
 		if ((r = dm_cmd_to_fun(dm_dict_in)) != 0) {
 			prop_object_release(dm_dict_in);

Index: src/sys/dev/dm/dm_ioctl.c
diff -u src/sys/dev/dm/dm_ioctl.c:1.16 src/sys/dev/dm/dm_ioctl.c:1.17
--- src/sys/dev/dm/dm_ioctl.c:1.16	Sat Dec  5 01:21:41 2009
+++ src/sys/dev/dm/dm_ioctl.c	Sun Dec  6 14:33:46 2009
@@ -1,4 +1,5 @@
-/*        $NetBSD: dm_ioctl.c,v 1.16 2009/12/05 01:21:41 haad Exp $      */
+
+/*        $NetBSD: dm_ioctl.c,v 1.17 2009/12/06 14:33:46 haad Exp $      */
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -619,7 +620,8 @@
 	prop_array_t cmd_array;
 	const char *name, *uuid;
 	uint32_t flags, minor;
-	
+
+	int table_type;
 	size_t i;
 
 	name = NULL;
@@ -648,12 +650,18 @@
 	
 	aprint_debug("Getting table deps for device: %s\n", dmv->name);
 
-	tbl = dm_table_get_entry(&dmv->table_head, DM_TABLE_ACTIVE);
+	/* if DM_QUERY_INACTIVE_TABLE_FLAG is passed we need to query INACTIVE TABLE */
+	if (flags & DM_QUERY_INACTIVE_TABLE_FLAG)
+		table_type = DM_TABLE_INACTIVE;
+	else
+		table_type = DM_TABLE_ACTIVE;
+	
+	tbl = dm_table_get_entry(&dmv->table_head, table_type);
 
 	SLIST_FOREACH(table_en, tbl, next)
        		table_en->target->deps(table_en, cmd_array);
 
-	dm_table_release(&dmv->table_head, DM_TABLE_ACTIVE);
+	dm_table_release(&dmv->table_head, table_type);
 	dm_dev_unbusy(dmv);
 		
 	prop_dictionary_set(dm_dict, DM_IOCTL_CMD_DATA, cmd_array);
@@ -848,6 +856,7 @@
 	const char *name, *uuid;
 	char *params;
 	int flags;
+	int table_type;
 	
 	dmv = NULL;
 	uuid = NULL;
@@ -868,6 +877,12 @@
 		return ENOENT;
 	}
 
+	/* if DM_QUERY_INACTIVE_TABLE_FLAG is passed we need to query INACTIVE TABLE */
+	if (flags & DM_QUERY_INACTIVE_TABLE_FLAG)
+		table_type = DM_TABLE_INACTIVE;
+	else
+		table_type = DM_TABLE_ACTIVE;
+		
 	if (dm_table_get_target_count(&dmv->table_head, DM_TABLE_ACTIVE))
 		DM_ADD_FLAG(flags, DM_ACTIVE_PRESENT_FLAG);
 	else {
@@ -885,13 +900,10 @@
 	
 	prop_dictionary_set_uint32(dm_dict, DM_IOCTL_MINOR, dmv->minor);
 	
-	/* I should use mutex here and not rwlock there can be IO operation
-	   during this ioctl on device. */
-
 	aprint_debug("Status of device tables: %s--%d\n",
 	    name, dmv->table_head.cur_active_table);
 	
-	tbl = dm_table_get_entry(&dmv->table_head, DM_TABLE_ACTIVE);
+	tbl = dm_table_get_entry(&dmv->table_head, table_type);
 	
 	SLIST_FOREACH(table_en, tbl, next)
 	{
@@ -928,9 +940,10 @@
 		prop_object_release(target_dict);
 	}
 
-	dm_table_release(&dmv->table_head, DM_TABLE_ACTIVE);
+	dm_table_release(&dmv->table_head, table_type);
 	dm_dev_unbusy(dmv);
-	
+
+	prop_dictionary_set_uint32(dm_dict, DM_IOCTL_FLAGS, flags);
 	prop_dictionary_set(dm_dict, DM_IOCTL_CMD_DATA, cmd_array);
 	prop_object_release(cmd_array);
 	
@@ -969,5 +982,7 @@
 	prop_array_set_uint32(ver, 1, DM_VERSION_MINOR);
 	prop_array_set_uint32(ver, 2, DM_VERSION_PATCHLEVEL);
 
+	prop_dictionary_set(dm_dict, DM_IOCTL_VERSION, ver);
+	
 	return 0;
 }

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