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#!/bin/bash
# Basic test for mkfs.btrfs --inode-flags --rootdir. Create a dataset and use it as
# rootdir, then various inode-flags and verify the flag is properly set.
source "$TEST_TOP/common" || exit
check_prereq mkfs.btrfs
check_prereq btrfs
check_global_prereq lsattr
setup_root_helper
prepare_test_dev
tmp=$(_mktemp_dir mkfs-rootdir)
write_file()
{
local path="$1"
local size="$2"
run_check dd if=/dev/zero of="$path" bs="$size" count=1 status=noxfer > /dev/null 2>&1
}
check_nodatacow()
{
local path="$1"
lsattr "$TEST_MNT/$path" | grep -q C || _fail "missing NODATACOW flag for $path"
}
write_file "$tmp/file1" 64K
write_file "$tmp/file2" 64K
run_check mkdir -p "$tmp/subv" "$tmp/nocow_subv" "$tmp/nocow_dir/dir2"
write_file "$tmp/subv/file3" 64K
write_file "$tmp/nocow_subv/file4" 64K
write_file "$tmp/nocow_dir/dir2/file5" 64K
write_file "$tmp/nocow_dir/file6" 64K
write_file "$tmp/nocow_file1" 64K
run_check_mkfs_test_dev --rootdir "$tmp" \
--inode-flags "nodatacow:nocow_subv" \
--subvol "nocow_subv" \
--inode-flags "nodatacow:nocow_dir" \
--inode-flags "nodatacow:nocow_file1"
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
run_check_mount_test_dev
check_nodatacow "nocow_subv"
check_nodatacow "nocow_subv/file4"
check_nodatacow "nocow_dir"
check_nodatacow "nocow_dir/file6"
check_nodatacow "nocow_dir/dir2/file5"
check_nodatacow "nocow_file1"
run_check lsattr -R "$TEST_MNT"
run_check_umount_test_dev
run_check rm -rf -- "$tmp"
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