diff --git a/0019-metrics-add-total_inactive_file-metric-for-memory.patch b/0019-metrics-add-total_inactive_file-metric-for-memory.patch
new file mode 100644
index 0000000000000000000000000000000000000000..737afccd907f521c29fcc71329c4ab1baa645b7b
--- /dev/null
+++ b/0019-metrics-add-total_inactive_file-metric-for-memory.patch
@@ -0,0 +1,39 @@
+From 15da6e1f057c70eee476730138788fd73de1b208 Mon Sep 17 00:00:00 2001
+From: Li Feng <lifeng2221dd1@zoho.com.cn>
+Date: Thu, 28 Jan 2021 16:05:18 +0800
+Subject: [PATCH 19/19] metrics: add total_inactive_file metric for memory
+
+Signed-off-by: Li Feng <lifeng2221dd1@zoho.com.cn>
+---
+ src/lxc/lxccontainer.c | 1 +
+ src/lxc/lxccontainer.h | 2 ++
+ 2 files changed, 3 insertions(+)
+
+diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
+index 9202b73ff..06552ce5c 100644
+--- a/src/lxc/lxccontainer.c
++++ b/src/lxc/lxccontainer.c
+@@ -5919,6 +5919,7 @@ static bool do_lxcapi_get_container_metrics(struct lxc_container *c,  struct lxc
+ 
+ 	metrics->cache = metrics_match_get_ull(c, cgroup_ops, "memory.stat", "cache", 1);
+ 	metrics->cache_total = metrics_match_get_ull(c, cgroup_ops, "memory.stat", "total_cache", 1);
++	metrics->inactive_file_total = metrics_match_get_ull(c, cgroup_ops, "memory.stat", "total_inactive_file", 1);
+ 
+ 	return true;
+ }
+diff --git a/src/lxc/lxccontainer.h b/src/lxc/lxccontainer.h
+index e30bf6161..9abbd09ed 100644
+--- a/src/lxc/lxccontainer.h
++++ b/src/lxc/lxccontainer.h
+@@ -69,6 +69,8 @@ struct lxc_container_metrics {
+     /* Cache usage */
+     uint64_t cache;
+     uint64_t cache_total;
++    /* total inactive file */
++    uint64_t inactive_file_total;
+ };
+ 
+ /*!
+-- 
+2.25.1
+
diff --git a/lxc.spec b/lxc.spec
index 52e1867d2812163504ba805f91ef66348cf4058c..45a55a704571a86bd8682d39dcecb6c3a32dba9c 100644
--- a/lxc.spec
+++ b/lxc.spec
@@ -1,4 +1,4 @@
-%global _release 2021012001
+%global _release 2021012801
 
 Name:           lxc
 Version:        4.0.3
@@ -26,6 +26,7 @@ Patch0015:	0015-Streaming-IO-solution-optimization-and-enhancement.patch
 Patch0016:	0016-avoid-using-void-pointers-in-caclulation.patch
 Patch0017:	0017-fix-compilation-errors-without-libcap.patch
 Patch0018:	0018-IO-fix-io-data-miss-when-exec-with-pipes.patch
+Patch0019:	0019-metrics-add-total_inactive_file-metric-for-memory.patch
 
 BuildRequires:  systemd-units git libtool graphviz docbook2X doxygen chrpath
 BuildRequires:  pkgconfig(libseccomp)
@@ -197,6 +198,12 @@ make check
 %{_mandir}/*/man7/%{name}*
 
 %changelog
+* Thu Jan 28 2021 lifeng <lifeng68@huawei.com> - 4.0.3-2021012801
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC: add inactive file total metrics
+
 * Wed Jan 21 2021 lifeng <lifeng68@huawei.com> - 4.0.3-2021012001
 - Type:enhancement
 - ID:NA
diff --git a/series.conf b/series.conf
index fcd7814d0f55c8a0976139662456376030406c46..065ae00d7bfd37a466bbf4ebbeeb8f9d05d9fc93 100644
--- a/series.conf
+++ b/series.conf
@@ -16,3 +16,4 @@
 0016-avoid-using-void-pointers-in-caclulation.patch
 0017-fix-compilation-errors-without-libcap.patch
 0018-IO-fix-io-data-miss-when-exec-with-pipes.patch
+0019-metrics-add-total_inactive_file-metric-for-memory.patch