Re: [patch -mm] scheduler cache hot autodetect, isolcpus fix

[John Hawkes]

I'm looking at 2.6.15-rc5-mm2 and there is still a problem:  the
migration_cost[] array is disappearing after boot, which leads to completely
bogus migration_cost[] values when dynamic sched domains are declared.

The fix:

Index: linux/kernel/sched.c
==========================================================
--- linux.orig/kernel/sched.c   2005-12-12 10:30:24.000000000 -0800
+++ linux/kernel/sched.c        2005-12-12 11:25:27.000000000 -0800
@@ -5279,7 +5279,7 @@
  */
 #define MAX_DOMAIN_DISTANCE 32

-static __initdata unsigned long long migration_cost[MAX_DOMAIN_DISTANCE] =
+static unsigned long long migration_cost[MAX_DOMAIN_DISTANCE] =
                { [ 0 ... MAX_DOMAIN_DISTANCE-1 ] = -1LL };

 /*

-
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