linux-kernel - [PATCH 1/9] Replace ARCH_HAS_SCHED_WAKE_IDLE with CONFIG_SCHED

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Message-Id: <20060807141224.4e3ba738.rdunlap@xenotime.net>
Date:	Mon, 7 Aug 2006 14:12:24 -0700
From:	"Randy.Dunlap" <rdunlap@...otime.net>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	akpm <akpm@...l.org>, torvalds <torvalds@...l.org>,
	colpatch@...ibm.com
Subject: [PATCH 1/9] Replace ARCH_HAS_SCHED_WAKE_IDLE with CONFIG_SCHED_SMT

From: Randy Dunlap <rdunlap@...otime.net>

Replace ARCH_HAS_SCHED_WAKE_IDLE with CONFIG_SCHED_SMT.
Move it from header files to Kconfig space.

Signed-off-by: Randy Dunlap <rdunlap@...otime.net>
---
 include/linux/topology.h |    6 ++----
 kernel/sched.c           |    2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

--- linux-2618-rc4-arch.orig/include/linux/topology.h
+++ linux-2618-rc4-arch/include/linux/topology.h
@@ -80,10 +80,8 @@
  * and allow arch-specific performance tuning of sched_domains.
  */
 #ifdef CONFIG_SCHED_SMT
-/* MCD - Do we really need this?  It is always on if CONFIG_SCHED_SMT is,
- * so can't we drop this in favor of CONFIG_SCHED_SMT?
- */
-#define ARCH_HAS_SCHED_WAKE_IDLE
+/* CONFIG_SCHED_SMT is synonymous with old ARCH_HAS_SCHED_WAKE_IDLE */
+
 /* Common values for SMT siblings */
 #ifndef SD_SIBLING_INIT
 #define SD_SIBLING_INIT (struct sched_domain) {		\
--- linux-2618-rc4-arch.orig/kernel/sched.c
+++ linux-2618-rc4-arch/kernel/sched.c
@@ -1315,7 +1315,7 @@ nextlevel:
  *
  * Returns the CPU we should wake onto.
  */
-#if defined(ARCH_HAS_SCHED_WAKE_IDLE)
+#ifdef CONFIG_SCHED_SMT
 static int wake_idle(int cpu, struct task_struct *p)
 {
 	cpumask_t tmp;


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