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| author | Ingo Molnar <mingo@elte.hu> | 2007-07-09 18:51:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-07-09 18:51:58 +0200 |
| commit | 138a8aeb5b9e5c5abd5e5ec22b6d1848e7e9c50b (patch) | |
| tree | c109206cd95dd22c94dd24e27703a13bbbc80b0c /kernel/sched.c | |
| parent | 41b86e9c510ae66639bf29d3201e1d2384a7fde6 (diff) | |
| download | lwn-138a8aeb5b9e5c5abd5e5ec22b6d1848e7e9c50b.tar.gz lwn-138a8aeb5b9e5c5abd5e5ec22b6d1848e7e9c50b.zip | |
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/sched.c')
| -rw-r--r-- | kernel/sched.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 0333abdda85e..d9ed9274bf0a 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 |