59 lines
1.6 KiB
Bash
59 lines
1.6 KiB
Bash
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#!/bin/bash
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# Test that btrfs-image can dump image correctly for a missing device (RAID1)
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#
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# At least for RAID1, btrfs-image should be able to handle one missing device
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# without any problem
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source "$TEST_TOP/common"
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check_prereq btrfs-image
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check_prereq mkfs.btrfs
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check_prereq btrfs
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setup_root_helper
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setup_loopdevs 2
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prepare_loopdevs
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dev1=${loopdevs[1]}
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dev2=${loopdevs[2]}
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# $1: device number to remove (either 1 or 2)
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test_missing()
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{
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local bad_num
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local bad_dev
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local good_num
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local good_dev
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bad_num=$1
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bad_dev=${loopdevs[$bad_num]}
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good_num=$((3 - $bad_num))
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good_dev=${loopdevs[$good_num]}
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f -d raid1 -m raid1 "$dev1" "$dev2"
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# fill the fs with some data, we could create space cache
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run_check $SUDO_HELPER mount "$dev1" "$TEST_MNT"
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_MNT/a" bs=1M count=10
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_MNT/b" bs=4k count=1000 conv=sync
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run_check $SUDO_HELPER umount "$TEST_MNT"
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# make sure we have space cache
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if ! run_check_stdout "$TOP/btrfs" inspect dump-tree -t root "$dev1" |
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grep -q "EXTENT_DATA"; then
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# Normally the above operation should create the space cache.
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# If not, it may mean we have migrated to v2 cache by default
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_not_run "unable to create v1 space cache"
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fi
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# now wipe the device
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run_check wipefs -fa "$bad_dev"
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# we don't care about the image but btrfs-image must not fail
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run_check "$TOP/btrfs-image" "$good_dev" /dev/null
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}
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# Test with either device missing, so we're ensured to hit missing device
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test_missing 1
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test_missing 2
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cleanup_loopdevs
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