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#!/bin/bash
#
# test for sending stream size of clone-src option, compare against a send
# stream generated by buggy version
source $TOP/tests/common
check_prereq mkfs.btrfs
check_prereq btrfs
setup_root_helper
prepare_test_dev
run_check "$TOP/mkfs.btrfs" -f "$TEST_DEV"
run_check_mount_test_dev
here=`pwd`
cd "$TEST_MNT" || _fail "cannot chdir to TEST_MNT"
run_check $SUDO_HELPER $TOP/btrfs subvolume create subv-parent1
for i in 1 2 3; do
run_check $SUDO_HELPER dd if=/dev/zero of=subv-parent1/file1_$i bs=1M count=1
run_check $SUDO_HELPER $TOP/btrfs subvolume snapshot -r subv-parent1 subv-snap1_$i
done
run_check $SUDO_HELPER $TOP/btrfs subvolume create subv-parent2
for i in 1 2 3; do
run_check $SUDO_HELPER dd if=/dev/zero of=subv-parent2/file2_$i bs=1M count=1
run_check $SUDO_HELPER $TOP/btrfs subvolume snapshot -r subv-parent2 subv-snap2_$i
done
truncate -s0 "$here"/send-stream.img
chmod a+w "$here"/send-stream.img
run_check $SUDO_HELPER $TOP/btrfs send -f "$here"/send-stream.img \
-c subv-snap1_1 -c subv-snap2_1 subv-snap1_[23] subv-snap2_[23]
image=$(extract_image "$here"/multi-clone-src-v4.8.2.stream.xz)
old_stream_size=`stat --format=%s "$image"`
stream_size=`stat --format=%s "$here"/send-stream.img`
if [ $old_stream_size -lt $stream_size ]; then
run_check ls -l "$image" "$here"/send-stream.img
_fail "sending stream size is bigger than old stream"
fi
run_check rm -f -- "$image" "$here"/send-stream.img
cd "$here" || _fail "cannot chdir back to test directory"
run_check_umount_test_dev
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