49 lines
1.2 KiB
Bash
Executable File
49 lines
1.2 KiB
Bash
Executable File
#!/bin/bash
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# confirm that clearing space cache works
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source "$TOP/tests/common"
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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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prepare_test_dev 1G
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
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run_check_mount_test_dev
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# Create files that takes at least 3 data chunks, while
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# can still be removed to create free space inside one chunk.
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for i in $(seq 0 6); do
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_MNT/file_${i}" bs=1M \
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count=64 > /dev/null 2>&1
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done
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sync
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# Remove file 1 3 5 to create holes
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for i in 1 3 5; do
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run_check $SUDO_HELPER rm "$TEST_MNT/file_${i}"
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done
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sync
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run_check_umount_test_dev
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# Clear space cache and re-check fs
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run_check "$TOP/btrfs" check --clear-space-cache v1 "$TEST_DEV"
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run_check "$TOP/btrfs" check "$TEST_DEV"
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# Manually recheck space cache and super space cache generation
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run_check_stdout "$TOP/btrfs" inspect-internal dump-tree -t root "$TEST_DEV" | \
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grep -q FREE_SPACE
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if [ $? -eq 0 ]; then
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_fail "clear space cache doesn't clear all space cache"
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fi
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run_check_stdout $TOP/btrfs inspect-internal dump-super "$TEST_DEV" |
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grep -q 'cache_generation.*18446744073709551615'
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if [ $? -ne 0 ]; then
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_fail "clear space cache doesn't set cache_generation correctly"
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fi
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