[patch] sched: fix sched domain degenerate

[Siddha, Suresh B]

Appended patch makes sched domain degenerate really work.

For example, now NUMA domain really gets removed on a non-NUMA system.

Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>


--- linux-2.6.12-rc2-mm3/kernel/sched.c	2005-04-13 11:15:00.942609504 -0700
+++ linux-mc/kernel/sched.c	2005-04-13 10:44:37.400829992 -0700
@@ -4777,7 +4777,7 @@ static int __devinit sd_parent_degenerat
 	/* WAKE_BALANCE is a subset of WAKE_AFFINE */
 	if (cflags & SD_WAKE_AFFINE)
 		pflags &= ~SD_WAKE_BALANCE;
-	if ((~sd->flags) & parent->flags)
+	if (~cflags & pflags)
 		return 0;
 
 	return 1;
--- linux-2.6.12-rc2-mm3/include/linux/topology.h	2005-04-11 23:08:30.843108376 -0700
+++ linux-mc/include/linux/topology.h	2005-04-13 11:14:44.591095312 -0700
@@ -97,6 +97,7 @@
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_NEWIDLE	\
 				| SD_BALANCE_EXEC	\
+				| SD_BALANCE_FORK	\
 				| SD_WAKE_AFFINE	\
 				| SD_WAKE_IDLE		\
 				| SD_SHARE_CPUPOWER,	\
@@ -128,6 +129,7 @@
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_NEWIDLE	\
 				| SD_BALANCE_EXEC	\
+				| SD_BALANCE_FORK	\
 				| SD_WAKE_AFFINE,	\
 	.last_balance		= jiffies,		\
 	.balance_interval	= 1,			\
-
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