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]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26
27. $STF_SUITE/include/libtest.kshlib
28. $STF_SUITE/tests/zvol/zvol_common.kshlib
29
30#################################################################################
31#
32# __stc_assertion_start
33#
34# ID: zvol_swap_005_pos
35#
36# DESCRIPTION:
37#	swaplow + swaplen must be less than or equal to the volume size.
38#
39# STRATEGY:
40#	1. Get test system page size and test volume size.
41#	2. Random get swaplow and swaplen.
42#	3. Verify swap -a should succeed when swaplow + swaplen <= volume size.
43#
44# TESTABILITY: explicit
45#
46# TEST_AUTOMATION_LEVEL: automated
47#
48# CODING_STATUS: COMPLETED (2006-12-12)
49#
50# __stc_assertion_end
51#
52################################################################################
53
54verify_runnable "global"
55
56log_assert "swaplow + swaplen must be less than or equal to the volume size."
57
58test_requires SWAP
59
60typeset vol=$TESTPOOL/$TESTVOL
61typeset -i pageblocks volblocks
62#
63# Both swaplow and swaplen are the desired length of
64# the swap area in 512-byte blocks.
65#
66((pageblocks = $($PAGESIZE) / 512))
67((volblocks = $(get_prop volsize $vol) / 512))
68
69typeset -i i=0
70while ((i < 10)) ; do
71	while true; do
72		((swaplow = RANDOM % volblocks))
73		# Upwards increment
74		((swaplow += pageblocks))
75		((swaplow -= (swaplow % pageblocks)))
76
77		# At lease one page size was left for swap area
78		((swaplow != volblocks)) && break
79	done
80
81	while true; do
82		((swaplen = RANDOM % (volblocks - swaplow)))
83		# Downward increment
84		((swaplen -= (swaplen % pageblocks)))
85
86		# At lease one page size was left for swap area
87		((swaplen != 0)) && break
88	done
89
90	# The minimum swap size should be 2 pagesize.
91	((swaplow + swaplen < pageblocks * 2)) && continue
92
93	swapname="/dev/zvol/$vol"
94	if is_swap_inuse $swapname ; then
95		log_must $SWAP -d $swapname
96	fi
97
98	log_must $SWAP -a $swapname $swaplow $swaplen
99	log_must $SWAP -d $swapname $swaplow
100
101	((i += 1))
102done
103
104log_pass "Verify swaplow + swaplen must be less than or equal to volsize passed."
105