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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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