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#!/bin/bash
# a long device name must pass the SSD test
source "$TEST_TOP/common"
check_prereq mkfs.btrfs
setup_root_helper
prepare_test_dev
# prep device
dmname=\
btrfs-test-with-very-long-name-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
dmdev=/dev/mapper/$dmname
run_check truncate -s0 img
chmod a+w img
run_check truncate -s2g img
loopdev=`run_check_stdout $SUDO_HELPER losetup --find --show img`
run_check $SUDO_HELPER dmsetup create $dmname --table "0 1048576 linear $loopdev 0"
dmbase=`readlink -f $dmdev`
base=`basename "$dmbase"`
rot=/sys/class/block/$base/queue/rotational
# switch rotational
run_check cat $rot
echo 0 | run_check $SUDO_HELPER tee $rot
run_check cat $rot
# test
run_check_stdout $SUDO_HELPER $TOP/mkfs.btrfs -f $@ $dmdev |
grep -q 'SSD detected:.*yes' || _fail 'SSD not detected'
run_check $SUDO_HELPER $TOP/btrfs inspect-internal dump-super $dmdev
# cleanup
run_check $SUDO_HELPER dmsetup remove $dmname
run_mayfail $SUDO_HELPER losetup -d $loopdev
run_check truncate -s0 img
rm img
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