sched: Dynamic sched_domain::level
Remove the SD_LV_ enum and use dynamic level assignments.
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/20110407122942.969433965@chello.nl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/sched.c b/kernel/sched.c
index 3231e19..506cb81 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -6966,7 +6966,6 @@
{ \
struct sched_domain *sd = *per_cpu_ptr(tl->data.sd, cpu); \
*sd = SD_##type##_INIT; \
- sd->level = SD_LV_##type; \
SD_INIT_NAME(sd, type); \
sd->private = &tl->data; \
return sd; \
@@ -6988,13 +6987,14 @@
#endif
static int default_relax_domain_level = -1;
+int sched_domain_level_max;
static int __init setup_relax_domain_level(char *str)
{
unsigned long val;
val = simple_strtoul(str, NULL, 0);
- if (val < SD_LV_MAX)
+ if (val < sched_domain_level_max)
default_relax_domain_level = val;
return 1;
@@ -7173,8 +7173,11 @@
set_domain_attribute(sd, attr);
cpumask_and(sched_domain_span(sd), cpu_map, tl->mask(cpu));
- if (child)
+ if (child) {
+ sd->level = child->level + 1;
+ sched_domain_level_max = max(sched_domain_level_max, sd->level);
child->parent = sd;
+ }
sd->child = child;
return sd;