The commit is pushed to "branch-rh9-5.14.vz9.1.x-ovz" and will appear at
https://src.openvz.org/scm/ovz/vzkernel.git
after ark-5.14
------>
commit c218bca9cfeb46b646547073430d8824a36cef6c
Author: Pavel Tikhomirov <ptikhomi...@virtuozzo.com>
Date: Mon Oct 4 21:50:31 2021 +0300
ve/time: remove our per-ve times in favor of mainstream time-namespaces
https://jira.sw.ru/browse/PSBM-134393
Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com>
====================
Patchset description:
ve/time: switch from our ve-time to native timenamespace
https://jira.sw.ru/browse/PSBM-134393
As time-namespaces are a new and mainstreamed version of ve-time, it's
time to switch to it.
Notes:
1) ve-time does not need configuration on start, though time namespace
needs configuration (offset == -now).
2) ve-time saved container start time but time namespaces save offset
between host start time and container start time
(offset == ve_start_time - now).
3) criu already knows how to handle time namespaces, though we need to
do a compatibility layer to convert our ve.clock_* to offsets in time
namespace for pre-vz9 to vz9 migration.
4) vdso time is already handled by time namespaces, though time
namespace only virtualizes vvar page, so it should not intersect with
our vdso virtualization for ve.os_release.
https://jira.sw.ru/browse/PSBM-134393
Cyrill Gorcunov (1):
ve: Add interface for ve::clock_[monotonic|bootbased] adjustment
Kirill Tkhai (2):
ve/time: Use ve_relative_clock in times() syscall and /proc/[pid]/stat
ve: Virtualize sysinfo
Pavel Tikhomirov (1):
ve/time: remove our per-ve times in favor of mainstream
time-namespaces
Valeriy Vdovin (1):
ve/proc: Added separate start time field to task_struct to show in
container
---
include/linux/ve.h | 2 --
kernel/ve/ve.c | 9 ---------
2 files changed, 11 deletions(-)
diff --git a/include/linux/ve.h b/include/linux/ve.h
index 496d90634a0e..dccf2108f79b 100644
--- a/include/linux/ve.h
+++ b/include/linux/ve.h
@@ -36,8 +36,6 @@ struct ve_struct {
struct rw_semaphore op_sem;
/* per VE CPU stats*/
- u64 start_time; /* monotonic time */
- u64 start_boottime; /* boot based time */
u64 start_jiffies; /* Deprecated */
struct nsproxy __rcu *ve_ns;
diff --git a/kernel/ve/ve.c b/kernel/ve/ve.c
index a55ab14a1998..e510acf027f5 100644
--- a/kernel/ve/ve.c
+++ b/kernel/ve/ve.c
@@ -457,15 +457,6 @@ static int ve_start_container(struct ve_struct *ve)
if (task_active_pid_ns(tsk) != tsk->nsproxy->pid_ns_for_children)
return -ECHILD;
- /*
- * Setup uptime for new containers only, if restored
- * the value won't be zero here already but setup from
- * cgroup write while resuming the container.
- */
- if (ve->start_time == 0) {
- ve->start_time = tsk->start_time;
- ve->start_boottime = tsk->start_boottime;
- }
/* The value is wrong, but it is never compared to process
* start times */
ve->start_jiffies = get_jiffies_64();
_______________________________________________
Devel mailing list
Devel@openvz.org
https://lists.openvz.org/mailman/listinfo/devel
