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| author | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:04 +0200 |
| commit | bf5c91ba8c629b84413c761f529627195fd0a935 (patch) | |
| tree | 8a795d6861ba4e13b90d2597a7306e1adb30bee8 /kernel/sched.c | |
| parent | e9acbff6484df51fd880e0f5fe0224e8be34c17b (diff) | |
| download | linux-bf5c91ba8c629b84413c761f529627195fd0a935.tar.bz2 | |
sched: move sched_feat() definitions
move sched_feat() definitions so that it can be used sooner by generic
code too.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 8f80ebafacc1..a5dd03522e32 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -382,6 +382,37 @@ static void update_rq_clock(struct rq *rq) #define cpu_curr(cpu) (cpu_rq(cpu)->curr) /* + * Tunables that become constants when CONFIG_SCHED_DEBUG is off: + */ +#ifdef CONFIG_SCHED_DEBUG +# define const_debug __read_mostly +#else +# define const_debug static const +#endif + +/* + * Debugging: various feature bits + */ +enum { + SCHED_FEAT_FAIR_SLEEPERS = 1, + SCHED_FEAT_NEW_FAIR_SLEEPERS = 2, + SCHED_FEAT_SLEEPER_AVG = 4, + SCHED_FEAT_SLEEPER_LOAD_AVG = 8, + SCHED_FEAT_START_DEBIT = 16, + SCHED_FEAT_SKIP_INITIAL = 32, +}; + +const_debug unsigned int sysctl_sched_features = + SCHED_FEAT_FAIR_SLEEPERS *0 | + SCHED_FEAT_NEW_FAIR_SLEEPERS *1 | + SCHED_FEAT_SLEEPER_AVG *0 | + SCHED_FEAT_SLEEPER_LOAD_AVG *1 | + SCHED_FEAT_START_DEBIT *1 | + SCHED_FEAT_SKIP_INITIAL *0; + +#define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x) + +/* * For kernel-internal use: high-speed (but slightly incorrect) per-cpu * clock constructed from sched_clock(): */ |