core: add startup resource control option

Similar to CPUShares= and BlockIOWeight= respectively. However only
assign the specified weight during startup. Each control group
attribute is re-assigned as weight by CPUShares=weight and
BlockIOWeight=weight after startup.  If not CPUShares= or
BlockIOWeight= be specified, then the attribute is re-assigned to each
default attribute value. (default cpu.shares=1024, blkio.weight=1000)
If only CPUShares=weight or BlockIOWeight=weight be specified, then
that implies StartupCPUShares=weight and StartupBlockIOWeight=weight.

1 files changed, 6 insertions, 2 deletions

diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index 2b19add799..64d3ac64f5 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -71,11 +71,15 @@ struct CGroupContext {
         bool memory_accounting;
 
         unsigned long cpu_shares;
+        unsigned long startup_cpu_shares;
+        bool startup_cpu_shares_set:1;
         usec_t cpu_quota_per_sec_usec;
         usec_t cpu_quota_usec;
         usec_t cpu_quota_period_usec;
 
         unsigned long blockio_weight;
+        unsigned long startup_blockio_weight;
+        bool startup_blockio_weight_set:1;
         LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
         LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
 
@@ -92,9 +96,9 @@ struct CGroupContext {
 void cgroup_context_init(CGroupContext *c);
 void cgroup_context_done(CGroupContext *c);
 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
-void cgroup_context_apply(CGroupContext *c, CGroupControllerMask mask, const char *path);
+void cgroup_context_apply(Manager *m, CGroupContext *c, CGroupControllerMask mask, const char *path);
 
-CGroupControllerMask cgroup_context_get_mask(CGroupContext *c);
+CGroupControllerMask cgroup_context_get_mask(Manager *m, CGroupContext *c);
 
 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);