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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 01:29:44 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 01:29:44 +0300
commit22714a2ba4b55737cd7d5299db7aaf1fa8287354 (patch)
tree32b25f2e3e40732156a8a8d0dcb2ddf38410776f /include/linux/cgroup.h
parent766ec76a27aa9dfdfee3a80f29ddc1f7539c71f9 (diff)
parent5f2e673405b742be64e7c3604ed4ed3ac14f35ce (diff)
downloadlinux-22714a2ba4b55737cd7d5299db7aaf1fa8287354.tar.xz
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: "Cgroup2 cpu controller support is finally merged. - Basic cpu statistics support to allow monitoring by default without the CPU controller enabled. - cgroup2 cpu controller support. - /sys/kernel/cgroup files to help dealing with new / optional features" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: export list of cgroups v2 features using sysfs cgroup: export list of delegatable control files using sysfs cgroup: mark @cgrp __maybe_unused in cpu_stat_show() MAINTAINERS: relocate cpuset.c cgroup, sched: Move basic cpu stats from cgroup.stat to cpu.stat sched: Implement interface for cgroup unified hierarchy sched: Misc preps for cgroup unified hierarchy interface sched/cputime: Add dummy cputime_adjust() implementation for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE cgroup: statically initialize init_css_set->dfl_cgrp cgroup: Implement cgroup2 basic CPU usage accounting cpuacct: Introduce cgroup_account_cputime[_field]() sched/cputime: Expose cputime_adjust()
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r--include/linux/cgroup.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index dddbc29e2009..473e0c0abb86 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -23,6 +23,7 @@
#include <linux/nsproxy.h>
#include <linux/user_namespace.h>
#include <linux/refcount.h>
+#include <linux/kernel_stat.h>
#include <linux/cgroup-defs.h>
@@ -690,6 +691,63 @@ static inline void cgroup_path_from_kernfs_id(const union kernfs_node_id *id,
#endif /* !CONFIG_CGROUPS */
/*
+ * Basic resource stats.
+ */
+#ifdef CONFIG_CGROUPS
+
+#ifdef CONFIG_CGROUP_CPUACCT
+void cpuacct_charge(struct task_struct *tsk, u64 cputime);
+void cpuacct_account_field(struct task_struct *tsk, int index, u64 val);
+#else
+static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) {}
+static inline void cpuacct_account_field(struct task_struct *tsk, int index,
+ u64 val) {}
+#endif
+
+void __cgroup_account_cputime(struct cgroup *cgrp, u64 delta_exec);
+void __cgroup_account_cputime_field(struct cgroup *cgrp,
+ enum cpu_usage_stat index, u64 delta_exec);
+
+static inline void cgroup_account_cputime(struct task_struct *task,
+ u64 delta_exec)
+{
+ struct cgroup *cgrp;
+
+ cpuacct_charge(task, delta_exec);
+
+ rcu_read_lock();
+ cgrp = task_dfl_cgroup(task);
+ if (cgroup_parent(cgrp))
+ __cgroup_account_cputime(cgrp, delta_exec);
+ rcu_read_unlock();
+}
+
+static inline void cgroup_account_cputime_field(struct task_struct *task,
+ enum cpu_usage_stat index,
+ u64 delta_exec)
+{
+ struct cgroup *cgrp;
+
+ cpuacct_account_field(task, index, delta_exec);
+
+ rcu_read_lock();
+ cgrp = task_dfl_cgroup(task);
+ if (cgroup_parent(cgrp))
+ __cgroup_account_cputime_field(cgrp, index, delta_exec);
+ rcu_read_unlock();
+}
+
+#else /* CONFIG_CGROUPS */
+
+static inline void cgroup_account_cputime(struct task_struct *task,
+ u64 delta_exec) {}
+static inline void cgroup_account_cputime_field(struct task_struct *task,
+ enum cpu_usage_stat index,
+ u64 delta_exec) {}
+
+#endif /* CONFIG_CGROUPS */
+
+/*
* sock->sk_cgrp_data handling. For more info, see sock_cgroup_data
* definition in cgroup-defs.h.
*/