lxcfs/0009-limit-stat-by-quota-period-setting.patch

From b0097ee3a4b0ac445271badac153293053bd03e1 Mon Sep 17 00:00:00 2001
From: yangjiaqi <yangjiaqi16@huawei.com>
Date: Tue, 30 Nov 2021 15:10:23 +0800
Subject: [PATCH 09/17] limit-stat-by-quota-period-setting

---
 src/proc_fuse.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/proc_fuse.c b/src/proc_fuse.c
index 48c4e68..c6c32c7 100644
--- a/src/proc_fuse.c
+++ b/src/proc_fuse.c
@@ -549,7 +549,7 @@ struct devinfo* container_dev_read(pid_t pid) {
 			memset(fpath, 0, sizeof(fpath));
 			snprintf(fpath, 99, "/dev/%s", ptr->d_name);
 			stat(fpath, &dev_stat);
-			fprintf(stream, "%s %d ", ptr->d_name, dev_stat.st_rdev);
+			fprintf(stream, "%s %ld ", ptr->d_name, dev_stat.st_rdev);
 			fflush(stream);
 		}
 		closedir(dir);
@@ -1031,6 +1031,8 @@ 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,
@@ -1079,6 +1081,13 @@ 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;
@@ -1127,6 +1136,9 @@ 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;
 
-- 
2.27.0