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authorIngo Molnar <mingo@elte.hu>2007-07-09 18:51:58 +0200
committerIngo Molnar <mingo@elte.hu>2007-07-09 18:51:58 +0200
commit138a8aeb5b9e5c5abd5e5ec22b6d1848e7e9c50b (patch)
treec109206cd95dd22c94dd24e27703a13bbbc80b0c /kernel
parent41b86e9c510ae66639bf29d3201e1d2384a7fde6 (diff)
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sched: add cfs_rq ops
add the set_task_cfs_rq() abstraction needed by CONFIG_FAIR_GROUP_SCHED. (not activated yet) Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 0333abd..d9ed927 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -449,6 +449,18 @@ static inline unsigned long long rq_clock(struct rq *rq)
#define task_rq(p) cpu_rq(task_cpu(p))
#define cpu_curr(cpu) (cpu_rq(cpu)->curr)
+#ifdef CONFIG_FAIR_GROUP_SCHED
+/* Change a task's ->cfs_rq if it moves across CPUs */
+static inline void set_task_cfs_rq(struct task_struct *p)
+{
+ p->se.cfs_rq = &task_rq(p)->cfs;
+}
+#else
+static inline void set_task_cfs_rq(struct task_struct *p)
+{
+}
+#endif
+
#ifndef prepare_arch_switch
# define prepare_arch_switch(next) do { } while (0)
#endif
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