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#!/usr/bin/env bash
. $(dirname $(readlink -e ${BASH_SOURCE[0]}))/bcache-test-libs.sh
require-lib ../../../vm-tests/container_lib.sh
require-container ioctl_test
config-cache 2G
config-bucket-size 512k
config-block-size 2k
config-volume 1400M
config-timeout $(stress_timeout)
mb_to_sec()
{
local mb=$1
local sec=$((2*1024*$mb))
echo "$sec"
}
main()
{
setup_bcache
bch_ioctl()
{
container_run ioctl_test /dev/bcache_extent0 $@
}
cd /root
echo "-------- READ TEST -------- "
dd if=/dev/zero of=bar bs=512 count=24
bch_ioctl read 1 8 24 | diff -q bar -
echo "-------- UNIT TEST -------- "
# this portion specifically tests to make sure discard doesn't
# touch any surrounding keys
dd if=/dev/urandom of=foo bs=4096 count=1
touch bar
echo "initial state setup ..."
bch_ioctl write 1 0 8 < foo
bch_ioctl write 1 16 8 < foo
bch_ioctl write 1 32 8 < foo
echo "initial state check ..."
bch_ioctl count_keys 0 1 0 2 0 |& grep "3 keys found";
echo "discard ...."
bch_ioctl discard 1 8 24
echo "after discard check ..."
bch_ioctl list_keys 0 1 0 2 0 |& grep "2 keys found"
bch_ioctl read 1 0 8 | diff -q foo -
bch_ioctl read 1 8 24 | diff -q bar -
bch_ioctl read 1 32 8 | diff -q foo -
echo "------- FIO TEST -------- "
run_fio
bch_ioctl list_keys 1 0 0 100 100
bch_ioctl count_keys 0 0 0 1 0 |& grep "ENOSPC"
echo "discard ...."
bch_ioctl discard 0 0 "`mb_to_sec 1400`"
bch_ioctl count_keys 0 0 0 1 0 |& grep "0 keys found"
}
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