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From 4e7a3af028dfe6b5a4a85c31d670df73c08a0719 Mon Sep 17 00:00:00 2001
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From: Chris Down <chris@chrisdown.name>
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Date: Mon, 30 Sep 2019 18:36:13 +0100
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Subject: [PATCH] cgroup: Mark memory protections as explicitly set in
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transient units
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A later version of the DefaultMemory{Low,Min} patch changed these to
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require explicitly setting memory_foo_set, but we only set that in
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load-fragment, not dbus-cgroup.
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Without these, we may fall back to either DefaultMemoryFoo or
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CGROUP_LIMIT_MIN when we really shouldn't.
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(cherry picked from commit 184e989d7da4648bd36511ffa28a9f2b469589d1)
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Related: #1763435
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---
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src/core/dbus-cgroup.c | 64 +++++++++++++++++++++++++++++++-----------
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1 file changed, 48 insertions(+), 16 deletions(-)
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diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
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index 39778a8dd4..de85a4851b 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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@@ -665,17 +665,33 @@ int bus_cgroup_set_property(
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if (streq(name, "MemoryAccounting"))
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return bus_cgroup_set_boolean(u, name, &c->memory_accounting, CGROUP_MASK_MEMORY, message, flags, error);
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- if (streq(name, "MemoryMin"))
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- return bus_cgroup_set_memory_protection(u, name, &c->memory_min, message, flags, error);
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+ if (streq(name, "MemoryMin")) {
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+ r = bus_cgroup_set_memory_protection(u, name, &c->memory_min, message, flags, error);
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+ if (r > 0)
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+ c->memory_min_set = true;
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+ return r;
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+ }
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- if (streq(name, "MemoryLow"))
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- return bus_cgroup_set_memory_protection(u, name, &c->memory_low, message, flags, error);
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+ if (streq(name, "MemoryLow")) {
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+ r = bus_cgroup_set_memory_protection(u, name, &c->memory_low, message, flags, error);
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+ if (r > 0)
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+ c->memory_low_set = true;
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+ return r;
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+ }
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- if (streq(name, "DefaultMemoryMin"))
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- return bus_cgroup_set_memory_protection(u, name, &c->default_memory_min, message, flags, error);
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+ if (streq(name, "DefaultMemoryMin")) {
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+ r = bus_cgroup_set_memory_protection(u, name, &c->default_memory_min, message, flags, error);
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+ if (r > 0)
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+ c->default_memory_min_set = true;
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+ return r;
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+ }
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- if (streq(name, "DefaultMemoryLow"))
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- return bus_cgroup_set_memory_protection(u, name, &c->default_memory_low, message, flags, error);
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+ if (streq(name, "DefaultMemoryLow")) {
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+ r = bus_cgroup_set_memory_protection(u, name, &c->default_memory_low, message, flags, error);
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+ if (r > 0)
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+ c->default_memory_low_set = true;
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+ return r;
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+ }
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if (streq(name, "MemoryHigh"))
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return bus_cgroup_set_memory(u, name, &c->memory_high, message, flags, error);
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@@ -689,17 +705,33 @@ int bus_cgroup_set_property(
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if (streq(name, "MemoryLimit"))
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return bus_cgroup_set_memory(u, name, &c->memory_limit, message, flags, error);
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- if (streq(name, "MemoryMinScale"))
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- return bus_cgroup_set_memory_protection_scale(u, name, &c->memory_min, message, flags, error);
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+ if (streq(name, "MemoryMinScale")) {
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+ r = bus_cgroup_set_memory_protection_scale(u, name, &c->memory_min, message, flags, error);
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+ if (r > 0)
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+ c->memory_min_set = true;
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+ return r;
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+ }
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- if (streq(name, "MemoryLowScale"))
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- return bus_cgroup_set_memory_protection_scale(u, name, &c->memory_low, message, flags, error);
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+ if (streq(name, "MemoryLowScale")) {
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+ r = bus_cgroup_set_memory_protection_scale(u, name, &c->memory_low, message, flags, error);
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+ if (r > 0)
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+ c->memory_low_set = true;
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+ return r;
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+ }
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- if (streq(name, "DefaultMemoryMinScale"))
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- return bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_min, message, flags, error);
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+ if (streq(name, "DefaultMemoryMinScale")) {
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+ r = bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_min, message, flags, error);
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+ if (r > 0)
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+ c->default_memory_min_set = true;
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+ return r;
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+ }
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- if (streq(name, "DefaultMemoryLowScale"))
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- return bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_low, message, flags, error);
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+ if (streq(name, "DefaultMemoryLowScale")) {
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+ r = bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_low, message, flags, error);
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+ if (r > 0)
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+ c->default_memory_low_set = true;
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+ return r;
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+ }
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if (streq(name, "MemoryHighScale"))
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return bus_cgroup_set_memory_scale(u, name, &c->memory_high, message, flags, error);
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