lxcfs/0007-limit-stat-by-quota-period-setting.patch

From ded1a411d27dde558cc3d057cd65909e9cba1974 Mon Sep 17 00:00:00 2001
From: vegbir <yangjiaqi16@huawei.com>
Date: Wed, 12 Jul 2023 08:25:20 +0000
Subject: [PATCH 07/16] limit stat by quota period setting

Signed-off-by: vegbir <yangjiaqi16@huawei.com>
---
 src/proc_fuse.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/proc_fuse.c b/src/proc_fuse.c
index 80db328..dfcd72c 100644
--- a/src/proc_fuse.c
+++ b/src/proc_fuse.c
@@ -1079,6 +1079,8 @@ static int proc_stat_read(char *buf, size_t size, off_t offset,
 	size_t linelen = 0, total_len = 0;
 	int curcpu = -1; /* cpu numbering starts at 0 */
 	int physcpu = 0;
+	int max_cpus = 0;
+	bool use_view;
 	uint64_t user = 0, nice = 0, system = 0, idle = 0, iowait = 0, irq = 0,
 		 softirq = 0, steal = 0, guest = 0, guest_nice = 0;
 	uint64_t user_sum = 0, nice_sum = 0, system_sum = 0, idle_sum = 0,
@@ -1127,6 +1129,13 @@ static int proc_stat_read(char *buf, size_t size, off_t offset,
 	if (!cpuset)
 		return 0;
 
+	if (cgroup_ops->can_use_cpuview(cgroup_ops) && opts && opts->use_cfs)
+		use_view = true;
+	else
+		use_view = false;
+	if (use_view)
+		max_cpus = max_cpu_count(cg);
+
 	f = fopen_cached("/proc/stat", "re", &fopen_cache);
 	if (!f)
 		return 0;
@@ -1175,6 +1184,9 @@ static int proc_stat_read(char *buf, size_t size, off_t offset,
 			continue;
 		}
 
+		if (use_view && max_cpus > 0 && (curcpu + 1) == max_cpus)
+			continue;
+
 		if (sscanf(cpu_char, "%d", &physcpu) != 1)
 			continue;
 
-- 
2.41.0