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https://github.com/linux-apfs/apfstests.git
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Eric Sandeen
61e488737b
2 little fixes to common scsi_debug handling. * don't consider the scsi_debug module in use in _require, unless it can't be rmmod'd * don't try to rmmod it in _put unless it is currently loaded Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com>
64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
##/bin/bash
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#
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# Copyright (c) 2012 Red Hat, Inc
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# All Rights Reserved.
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#
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# Written by Eric Sandeen <sandeen@redhat.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#
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# Functions useful for tests on unique block devices
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#
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_require_scsi_debug()
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{
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# make sure we have the module and it's not already used
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modinfo scsi_debug 2>&1 > /dev/null || _notrun "scsi_debug module not found"
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lsmod | grep -wq scsi_debug && (rmmod scsi_debug || _notrun "scsi_debug module in use")
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# make sure it has the features we need
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# logical/physical sectors plus unmap support all went in together
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modinfo scsi_debug | grep -wq sector_size || _notrun "scsi_debug too old"
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}
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# Args: [physical sector size, [logical sector size, [unaligned(0|1), [size in megs]]]]
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_get_scsi_debug_dev()
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{
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# Defaults to phys 512, logical 512, aligned
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physical=${1-512}
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logical=${2-512}
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unaligned=${3-0}
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size=${4-128}
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phys_exp=0
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while [ $logical -lt $physical ]; do
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let physical=physical/2
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let phys_exp=phys_exp+1
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done
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opts="sector_size=$logical physblk_exp=$phys_exp lowest_aligned=$unaligned dev_size_mb=$size"
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echo "scsi_debug options $opts" >> $seq.full
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modprobe scsi_debug $opts
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[ $? -eq 0 ] || _fail "scsi_debug modprobe failed"
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sleep 1
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device=`grep -wl scsi_debug /sys/block/sd*/device/model | awk -F / '{print $4}'`
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echo "/dev/$device"
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}
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_put_scsi_debug_dev()
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{
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sleep 1
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lsmod | grep -wq scsi_debug || return
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rmmod scsi_debug || _fail "Could not remove scsi_debug module"
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}
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