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#!/bin/bash
# Confirm btrfs check can check file extents without causing false alert
source $TOP/tests/common
check_prereq btrfs
check_prereq mkfs.btrfs
check_global_prereq xfs_io
check_global_prereq fallocate
setup_root_helper
prepare_test_dev 128M
# Do some write into a large prealloc range
# Lowmem mode can report missing csum due to wrong csum range
test_paritical_write_into_prealloc()
{
run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
run_check_mount_test_dev
run_check fallocate -l 128K "$TEST_MNT/file"
sync
run_check xfs_io -c "pwrite 0 64K" "$TEST_MNT/file"
run_check_umount_test_dev
run_check "$TOP/btrfs" check "$TEST_DEV"
}
# Inline compressed file extent
# Lowmem mode can cause silent error without any error message
# due to too restrict check on inline extent size
test_compressed_inline_extent()
{
run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
run_check_mount_test_dev -o compress=lzo,max_inline=2048
run_check xfs_io -f -c "pwrite 0 1K" "$TEST_MNT/file"
run_check_umount_test_dev
run_check "$TOP/btrfs" check "$TEST_DEV"
}
test_paritical_write_into_prealloc
test_compressed_inline_extent
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