The commit is pushed to "branch-rh8-4.18.0-193.6.3.vz8.4.x-ovz" and will appear
at https://src.openvz.org/scm/ovz/vzkernel.git
after rh8-4.18.0-193.6.3.vz8.4.15
------>
commit de23bc4787594c1a8a989eb7d0ae3159a9e518bc
Author: Konstantin Khorenko <khore...@virtuozzo.com>
Date: Fri Oct 30 13:37:09 2020 +0300
ve/time/stat: idle time virtualization in /proc/loadavg
The patch is based on following vz7 commits:
a58fb58bff1c ("Use ve init task's css instead of opening cgroup via vfs")
75fc174adc36 ("sched: Port cpustat related patches")
Fixes: a3c4d1d8f383 ("ve/time: Customize VE uptime")
TODO: to separate FIXME hunks from a3c4d1d8f383 ("ve/time: Customize VE
uptime") and merge them into this commit
Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
Reviewed-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
---
fs/proc/uptime.c | 27 +++++++--------------------
1 file changed, 7 insertions(+), 20 deletions(-)
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index bc07d42ce9f5..dae407953903 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -23,37 +23,24 @@ static inline void get_ve0_idle(struct timespec64 *idle)
idle->tv_nsec = rem;
}
-static inline void get_veX_idle(struct timespec *idle, struct cgroup* cgrp)
+static inline void get_veX_idle(struct ve_struct *ve, struct timespec64 *idle)
{
-#if 0
-FIXME: to be reworked anyway in
- "Use ve init task's css instead of opening cgroup via vfs"
-
struct kernel_cpustat kstat;
- cpu_cgroup_get_stat(cgrp, &kstat);
- *idle = ns_to_timespec(kstat.cpustat[CPUTIME_IDLE]);
-#endif
+ ve_get_cpu_stat(ve, &kstat);
+ *idle = ns_to_timespec64(kstat.cpustat[CPUTIME_IDLE]);
}
static int uptime_proc_show(struct seq_file *m, void *v)
{
struct timespec uptime, offset;
struct timespec64 idle;
+ struct ve_struct *ve = get_exec_env();
- if (ve_is_super(get_exec_env()))
- get_ve0_idle(&idle);
- else {
+ if (ve_is_super(ve))
get_ve0_idle(&idle);
-#if 0
-FIXME: to be reworked anyway in
- "Use ve init task's css instead of opening cgroup via vfs"
-
- rcu_read_lock();
- get_veX_idle(&idle, task_cgroup(current, cpu_cgroup_subsys_id));
- rcu_read_unlock();
-#endif
- }
+ else
+ get_veX_idle(ve, &idle);
get_monotonic_boottime(&uptime);
#ifdef CONFIG_VE
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