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#!/bin/bash
#
# Test if "mkfs.btrfs --rootdir" would handle hard links where one is inside
# the rootdir, the other out of the rootdir.
source "$TEST_TOP/common" || exit
prepare_test_dev
tmpdir=$(_mktemp_dir mkfs-rootdir-hardlinks)
run_check mkdir "$tmpdir/rootdir"
run_check touch "$tmpdir/rootdir/inside_link"
run_check ln "$tmpdir/rootdir/inside_link" "$tmpdir/outside_link"
# Add more links to trigger the warnings
run_check touch "$tmpdir/rootdir/link0"
for i in {1..10}; do
run_check ln "$tmpdir/rootdir/link0" "$tmpdir/rootdir/link$i"
done
run_check_mkfs_test_dev --rootdir "$tmpdir/rootdir"
# For older mkfs.btrfs --rootdir we will create inside_link with 2 links,
# but since the other one is out of the rootdir, there should only be one
# 1 link, leading to btrfs check fail.
#
# The new behavior will split all hard links into different inodes, thus
# have correct nlink for each new inode.
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
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