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From 9d58db234dc9f22a4f551b1b06bd9fc60d085f4d Mon Sep 17 00:00:00 2001
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From: Filipe Brandenburger <filbranden@google.com>
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Date: Wed, 23 Jan 2019 20:19:44 -0800
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Subject: [PATCH] core: downgrade CPUQuotaPeriodSec= clamping logs to debug
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After the first warning log, further messages are downgraded to LOG_DEBUG.
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(cherry picked from commit 527ede0c638b47b62a87900438a8a09dea42889e)
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Related: #1770379
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---
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src/core/cgroup.c | 3 ++-
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src/core/dbus-cgroup.c | 2 ++
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src/core/unit.h | 3 +++
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3 files changed, 7 insertions(+), 1 deletion(-)
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diff --git a/src/core/cgroup.c b/src/core/cgroup.c
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index 45fd64a394..f8b351a65d 100644
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--- a/src/core/cgroup.c
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+++ b/src/core/cgroup.c
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@@ -544,9 +544,10 @@ static usec_t cgroup_cpu_adjust_period_and_log(Unit *u, usec_t period, usec_t qu
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if (new_period != period) {
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char v[FORMAT_TIMESPAN_MAX];
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- log_unit_full(u, LOG_WARNING, 0,
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+ log_unit_full(u, u->warned_clamping_cpu_quota_period ? LOG_DEBUG : LOG_WARNING, 0,
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"Clamping CPU interval for cpu.max: period is now %s",
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format_timespan(v, sizeof(v), new_period, 1));
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+ u->warned_clamping_cpu_quota_period = true;
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}
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return new_period;
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diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
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index c8b918e45d..4555b33b1f 100644
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--- a/src/core/dbus-cgroup.c
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+++ b/src/core/dbus-cgroup.c
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@@ -712,6 +712,7 @@ int bus_cgroup_set_property(
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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c->cpu_quota_per_sec_usec = u64;
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+ u->warned_clamping_cpu_quota_period = false;
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unit_invalidate_cgroup(u, CGROUP_MASK_CPU);
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if (c->cpu_quota_per_sec_usec == USEC_INFINITY)
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@@ -735,6 +736,7 @@ int bus_cgroup_set_property(
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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c->cpu_quota_period_usec = u64;
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+ u->warned_clamping_cpu_quota_period = false;
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unit_invalidate_cgroup(u, CGROUP_MASK_CPU);
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if (c->cpu_quota_period_usec == USEC_INFINITY)
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unit_write_setting(u, flags, "CPUQuotaPeriodSec", "CPUQuotaPeriodSec=");
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diff --git a/src/core/unit.h b/src/core/unit.h
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index 39179f5fd4..b40ff9b961 100644
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--- a/src/core/unit.h
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+++ b/src/core/unit.h
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@@ -356,6 +356,9 @@ typedef struct Unit {
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bool exported_log_rate_limit_interval:1;
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bool exported_log_rate_limit_burst:1;
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+ /* Whether we warned about clamping the CPU quota period */
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+ bool warned_clamping_cpu_quota_period:1;
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+
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/* When writing transient unit files, stores which section we stored last. If < 0, we didn't write any yet. If
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* == 0 we are in the [Unit] section, if > 0 we are in the unit type-specific section. */
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int last_section_private:2;
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