diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-04-07 16:09:53 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-11 14:58:21 +0400 |
| commit | 3859173d43658d51a749bc0201b943922577d39c (patch) | |
| tree | 39ad8fcc235cc40076bcb3e5f34b8db6e2230880 /include/linux/sched.h | |
| parent | a6c75f2f8d988ecfecf971f98f1cb6fc4de522fe (diff) | |
| download | linux-3859173d43658d51a749bc0201b943922577d39c.tar.xz | |
sched: Reduce some allocation pressure
Since we now allocate SD_LV_MAX * nr_cpu_ids sched_domain/sched_group
structures when rebuilding the scheduler toplogy it might make sense
to shrink that depending on the CONFIG_ options.
This is only needed until we get rid of SD_LV_* alltogether and
provide a full dynamic topology interface.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20110407122942.406226449@chello.nl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 020b79d6c486..5a9168b01db8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -897,12 +897,20 @@ static inline struct cpumask *sched_group_cpus(struct sched_group *sg) enum sched_domain_level { SD_LV_NONE = 0, +#ifdef CONFIG_SCHED_SMT SD_LV_SIBLING, +#endif +#ifdef CONFIG_SCHED_MC SD_LV_MC, +#endif +#ifdef CONFIG_SCHED_BOOK SD_LV_BOOK, +#endif SD_LV_CPU, +#ifdef CONFIG_NUMA SD_LV_NODE, SD_LV_ALLNODES, +#endif SD_LV_MAX }; |