!3 Package low-memory-monitor init with version 2.1

From: @weijin-deng
Reviewed-by: @dwl301
Signed-off-by: @dwl301

low-memory-monitor.spec

@@ -0,0 +1,63 @@
+Name:           low-memory-monitor
+Version:        2.1
+Release:        1
+Summary:        Monitors low-memory conditions
+
+License:        GPLv3+
+URL:            https://gitlab.freedesktop.org/hadess/low-memory-monitor
+Source0:        https://gitlab.freedesktop.org/hadess/low-memory-monitor/-/archive/2.1/low-memory-monitor-2.1.tar.gz
+
+BuildRequires:  meson gcc gtk-doc systemd libgudev-devel >= 234  glib2-devel >= 2.62.5
+
+%description
+The Low Memory Monitor is an early boot daemon that will monitor memory
+pressure information coming from the kernel, and, first, send a signal
+to user-space applications when memory is running low, and then activate
+the kernel's OOM killer when memory is running really low.
+
+%package doc
+Summary:        Documentation for %{name}
+BuildArch:      noarch
+Requires:       %{name} = %{version}-%{release}
+
+%description doc
+
+This package contains the documentation for %{name}.
+
+%prep
+%autosetup
+
+%build
+%meson -Dgtk_doc=true -Dtrigger_kernel_oom=false
+%meson_build
+
+%install
+%meson_install
+
+%post
+%systemd_post low-memory-monitor.service
+
+%preun
+%systemd_preun low-memory-monitor.service
+
+%postun
+%systemd_postun_with_restart low-memory-monitor.service
+
+systemctl --no-reload preset low-memory-monitor.service &>/dev/null || :
+
+%files
+%license COPYING
+%doc NEWS README.md
+%{_unitdir}/low-memory-monitor.service
+%{_libexecdir}/low-memory-monitor
+%{_datadir}/dbus-1/system.d/org.freedesktop.LowMemoryMonitor.conf
+
+%files doc
+%dir %{_datadir}/gtk-doc/
+%dir %{_datadir}/gtk-doc/html/
+%{_datadir}/gtk-doc/html/%{name}/
+
+%changelog
+* Mon Jun 7 2021 weijin deng <weijin.deng@turbolinux.com.cn> - 2.1-1
+- Package low-memory-monitor init with version 2.1
+