127 lines
2.7 KiB
Bash
Executable File
127 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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#
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# test that we can send and receive encoded writes for three modes of
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# transparent compression: zlib, lzo, and zstd.
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source "$TEST_TOP/common" || exit
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check_prereq mkfs.btrfs
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check_prereq btrfs
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setup_root_helper
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prepare_test_dev
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if ! [ -f "/sys/fs/btrfs/features/send_stream_version" ] ||
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grep -s '1$' "/sys/fs/btrfs/features/send_stream_version"; then
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_not_run "kernel does not support send stream >1"
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exit
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fi
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here=`pwd`
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# assumes the filesystem exists, and does mount, write, snapshot, send, unmount
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# for the specified encoding option
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send_one() {
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local str
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local subv
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local snap
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algorithm="$1"
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shift
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file="$1"
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shift
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subv="subv-$algorithm"
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snap="snap-$algorithm"
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run_check_mount_test_dev "-o" "compress-force=$algorithm"
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cd "$TEST_MNT" || _fail "cannot chdir to TEST_MNT"
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_mktemp_local "$file"
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run_check $SUDO_HELPER "$TOP/btrfs" subvolume create "$subv"
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run_check $SUDO_HELPER dd if=/dev/zero of="$subv/file1" bs=1M count=1
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run_check $SUDO_HELPER dd if=/dev/zero of="$subv/file2" bs=500K count=1
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run_check $SUDO_HELPER "$TOP/btrfs" subvolume snapshot -r "$subv" "$snap"
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run_check $SUDO_HELPER "$TOP/btrfs" send -f "$file" "$snap" "$@"
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cd "$here" || _fail "cannot chdir back to test directory"
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run_check_umount_test_dev
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}
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receive_one() {
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local str
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str="$1"
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shift
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run_check_mkfs_test_dev
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run_check_mount_test_dev
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run_check $SUDO_HELPER "$TOP/btrfs" receive "$@" -v -f "$str" "$TEST_MNT"
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run_check_umount_test_dev
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run_check rm -f -- "$str"
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}
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test_one_write_encoded() {
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local str
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local algorithm
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algorithm="$1"
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shift
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str="$here/stream-$algorithm.stream"
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run_check_mkfs_test_dev
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send_one "$algorithm" "$str" --compressed-data
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receive_one "$str" "$@"
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}
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test_one_stream_v1() {
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local str
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local algorithm
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algorithm="$1"
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shift
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str="$here/stream-$algorithm.stream"
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run_check_mkfs_test_dev
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send_one "$algorithm" "$str" --proto 1
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receive_one "$str" "$@"
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}
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test_mix_write_encoded() {
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local strzlib
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local strlzo
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local strzstd
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strzlib="$here/stream-zlib.stream"
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strlzo="$here/stream-lzo.stream"
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strzstd="$here/stream-zstd.stream"
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run_check_mkfs_test_dev
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send_one "zlib" "$strzlib" --compressed-data
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send_one "lzo" "$strlzo" --compressed-data
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send_one "zstd" "$strzstd" --compressed-data
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receive_one "$strzlib"
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receive_one "$strlzo"
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receive_one "$strzstd"
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}
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test_one_write_encoded "zlib"
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test_one_write_encoded "lzo"
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test_one_write_encoded "zstd"
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# with decompression forced
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test_one_write_encoded "zlib" "--force-decompress"
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test_one_write_encoded "lzo" "--force-decompress"
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test_one_write_encoded "zstd" "--force-decompress"
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# send stream v1
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test_one_stream_v1 "zlib"
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test_one_stream_v1 "lzo"
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test_one_stream_v1 "zstd"
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# files use a mix of compression algorithms
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test_mix_write_encoded
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