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https://github.com/linux-apfs/apfstests.git
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Dave Chinner
98a3b42b42
These have been scripted conversions then cleaned up by hand as there was no consistency to the formatting of the license headers in the common/ directory. Author information was also removed (it's in the git history) and so now the header format is consistently: ##/bin/bash # SPDX-License-Identifier: GPL-2.0(+) # Copyright (c) <date> <owner>. All Rights Reserved. # # <file description> Signed-off-by: Dave Chinner <dchinner@redhat.com>
58 lines
1.7 KiB
Plaintext
58 lines
1.7 KiB
Plaintext
##/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2012 Red Hat, Inc. All Rights Reserved.
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#
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# Functions useful for tests on unique block devices
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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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test -n "$4" && shift
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test -n "$3" && shift
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test -n "$2" && shift
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test -n "$1" && shift
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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" >> $seqres.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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lsmod | grep -wq scsi_debug || return
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n=2
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# use redirection not -q option of modprobe here, because -q of old
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# modprobe is only quiet when the module is not found, not when the
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# module is in use.
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while [ $n -ge 0 ] && ! modprobe -nr scsi_debug >/dev/null 2>&1; do
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sleep 1
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n=$((n-1))
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done
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rmmod scsi_debug || _fail "Could not remove scsi_debug module"
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}
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