From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:49601 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932358AbcEQOc0 (ORCPT ); Tue, 17 May 2016 10:32:26 -0400 From: Anand Jain To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org, Anand Jain Subject: [PATCH 1/6] fstests: btrfs: add functions to set and reset required number of SCRATCH_DEV_POOL Date: Tue, 17 May 2016 22:32:05 +0800 Message-Id: <1463495530-425-1-git-send-email-anand.jain@oracle.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: This patch provides functions _scratch_dev_pool_get() _scratch_dev_pool_put() Which will help to set/reset SCRATCH_DEV_POOL with the required number of devices. SCRATCH_DEV_POOL_SAVED will hold all the devices. Usage: _scratch_dev_pool_get() :: do stuff _scratch_dev_pool_put() Signed-off-by: Anand Jain --- common/rc | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/common/rc b/common/rc index 91e8f1c8e693..33632fd8e4a3 100644 --- a/common/rc +++ b/common/rc @@ -786,6 +786,53 @@ _scratch_mkfs() esac } +# +# $1 Number of the scratch devs required +# +_scratch_dev_pool_get() +{ + if [ $# != 1 ]; then + _fail "Usage: _scratch_dev_pool_get ndevs" + fi + + local test_ndevs=$1 + local config_ndevs=`echo $SCRATCH_DEV_POOL| wc -w` + local devs[]="( $SCRATCH_DEV_POOL )" + + typeset -p config_ndevs >/dev/null 2>&1 + if [ $? != 0 ]; then + _fail "Bug: unset val, must call _scratch_dev_pool_get before _scratch_dev_pool_put" + fi + + # _require_scratch_dev_pool $test_ndevs + # must have already checked the min required devices + # but just in case, trap here for any potential bugs + # perpetuating any further + if [ $config_ndevs -lt $test_ndevs ]; then + _notrun "Need at least test requested number of ndevs $test_ndevs" + fi + + SCRATCH_DEV_POOL_SAVED=${SCRATCH_DEV_POOL} + export SCRATCH_DEV_POOL_SAVED + SCRATCH_DEV_POOL=${devs[@]:0:$test_ndevs} + export SCRATCH_DEV_POOL +} + +_scratch_dev_pool_put() +{ + typeset -p SCRATCH_DEV_POOL_SAVED >/dev/null 2>&1 + if [ $? != 0 ]; then + _fail "Bug: unset val, must call _scratch_dev_pool_get before _scratch_dev_pool_put" + fi + + if [ -z "$SCRATCH_DEV_POOL_SAVED" ]; then + _fail "Bug: str empty, must call _scratch_dev_pool_get before _scratch_dev_pool_put" + fi + + export SCRATCH_DEV_POOL=$SCRATCH_DEV_POOL_SAVED + export SCRATCH_DEV_POOL_SAVED="" +} + _scratch_pool_mkfs() { case $FSTYP in -- 2.7.0