54 lines
1.7 KiB
Bash
Executable File
54 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# Test that receive determines the correct mount point path when there is
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# another mount point that matches the destination's path as a prefix.
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source "$TEST_TOP/common"
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# fix reverted in v4.20.2 due to reported breakage, the bug fixed by
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# "Btrfs-progs: fix mount point detection due to partial prefix match" is still
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# present
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_not_run "fix not available"
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check_prereq btrfs
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check_prereq mkfs.btrfs
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setup_root_helper
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rm -f dev1 dev2
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run_check truncate -s 1G dev1
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run_check truncate -s 1G dev2
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chmod a+w dev1 dev2
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loop1=$(run_check_stdout $SUDO_HELPER losetup --find --show dev1)
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loop2=$(run_check_stdout $SUDO_HELPER losetup --find --show dev2)
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$loop1"
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$loop2"
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run_check $SUDO_HELPER mount "$loop1" "$TEST_MNT"
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run_check $SUDO_HELPER mkdir "$TEST_MNT/ddis"
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run_check $SUDO_HELPER mkdir "$TEST_MNT/ddis-not-a-mount"
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run_check $SUDO_HELPER mount "$loop2" "$TEST_MNT/ddis"
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echo "some data" | $SUDO_HELPER tee "$TEST_MNT/ddis/file" > /dev/null
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run_check $SUDO_HELPER "$TOP/btrfs" subvolume snapshot -r \
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"$TEST_MNT/ddis" "$TEST_MNT/ddis/snap"
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run_check truncate -s 0 send.data
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chmod a+w send.data
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run_check $SUDO_HELPER "$TOP/btrfs" send -f send.data "$TEST_MNT/ddis/snap"
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# The following receive used to fail because it incorrectly determined the mount
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# point of the destination path to be $TEST_MNT/ddis and not $TEST_MNT.
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run_check $SUDO_HELPER "$TOP/btrfs" receive -f send.data \
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"$TEST_MNT/ddis-not-a-mount"
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run_check $SUDO_HELPER umount "$TEST_MNT/ddis"
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run_check $SUDO_HELPER umount "$TEST_MNT"
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# Cleanup loop devices and send data.
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run_check $SUDO_HELPER losetup -d "$loop1"
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run_check $SUDO_HELPER losetup -d "$loop2"
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rm -f dev1 dev2 send.data
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