Giedrius Statkevičius
aa5408e2e8
On certain distributions such as NixOS the mtime of `/etc/hosts` is locked to a fixed value. In such cases, only checking the last mtime of `/etc/hosts` is not enough - we also need to check if the st_ino/st_dev match up. Thus, let's make sure make sure that systemd-resolved also rereads `/etc/hosts` if the inode or the device containing `/etc/hosts` changes. Test script: ```bash hosts="/etc/hosts" echo "127.0.0.1 testpr" > "hosts_new" mv "hosts_new" "$hosts" resolvectl query testpr || exit 1 mtime="$(stat -c %y "$hosts")" echo "127.0.0.1 newhost" > "hosts_tmp" touch -d "$mtime" "hosts_tmp" install -p "hosts_tmp" "$hosts" sleep 10 resolvectl query newhost || exit 1 rm -f "hosts_tmp" ``` Closes #14456.
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