1#!/usr/local/bin/ksh93 -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
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20# CDDL HEADER END
21#
22
23# $FreeBSD$
24
25#
26# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)zvol_swap_005_pos.ksh	1.2	08/05/14 SMI"
30#
31
32. $STF_SUITE/include/libtest.kshlib
33. $STF_SUITE/tests/zvol/zvol_common.kshlib
34
35#################################################################################
36#
37# __stc_assertion_start
38#
39# ID: zvol_swap_005_pos
40#
41# DESCRIPTION:
42#	swaplow + swaplen must be less than or equal to the volume size.
43#
44# STRATEGY:
45#	1. Get test system page size and test volume size.
46#	2. Random get swaplow and swaplen.
47#	3. Verify swap -a should succeed when swaplow + swaplen <= volume size.
48#
49# TESTABILITY: explicit
50#
51# TEST_AUTOMATION_LEVEL: automated
52#
53# CODING_STATUS: COMPLETED (2006-12-12)
54#
55# __stc_assertion_end
56#
57################################################################################
58
59verify_runnable "global"
60
61log_assert "swaplow + swaplen must be less than or equal to the volume size."
62
63test_requires SWAP
64
65typeset vol=$TESTPOOL/$TESTVOL
66typeset -i pageblocks volblocks
67#
68# Both swaplow and swaplen are the desired length of
69# the swap area in 512-byte blocks.
70#
71((pageblocks = $($PAGESIZE) / 512))
72((volblocks = $(get_prop volsize $vol) / 512))
73
74typeset -i i=0
75while ((i < 10)) ; do
76	while true; do
77		((swaplow = RANDOM % volblocks))
78		# Upwards increment
79		((swaplow += pageblocks))
80		((swaplow -= (swaplow % pageblocks)))
81
82		# At lease one page size was left for swap area
83		((swaplow != volblocks)) && break
84	done
85
86	while true; do
87		((swaplen = RANDOM % (volblocks - swaplow)))
88		# Downward increment
89		((swaplen -= (swaplen % pageblocks)))
90
91		# At lease one page size was left for swap area
92		((swaplen != 0)) && break
93	done
94
95	# The minimum swap size should be 2 pagesize.
96	((swaplow + swaplen < pageblocks * 2)) && continue
97
98	swapname="/dev/zvol/$vol"
99	if is_swap_inuse $swapname ; then
100		log_must $SWAP -d $swapname
101	fi
102
103	log_must $SWAP -a $swapname $swaplow $swaplen
104	log_must $SWAP -d $swapname $swaplow
105
106	((i += 1))
107done
108
109log_pass "Verify swaplow + swaplen must be less than or equal to volsize passed."
110