[tip:sched/core] sched: Reduce forkexec_idx

tip-bot for Peter Zijlstra
2009-09-16T10:22:56Z

Commit-ID: b8a543ea5a5896830a9969bacfd047f9d15940b2
Gitweb: http://git.kernel.org/tip/b8a543ea5a5896830a9969bacfd047f9d15940b2
Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
AuthorDate: Tue, 15 Sep 2009 15:22:03 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 15 Sep 2009 16:51:23 +0200

sched: Reduce forkexec_idx

If we're looking to place a new task, we might as well find the
idlest position _now_, not 1 tick ago.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

---
arch/ia64/include/asm/topology.h | 4 ++--
arch/sh/include/asm/topology.h | 2 +-
arch/sparc/include/asm/topology_64.h | 2 +-
arch/x86/include/asm/topology.h | 4 +---
include/linux/topology.h | 4 ++--
5 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
index 42f1673..569b9da 100644
--- a/arch/ia64/include/asm/topology.h
+++ b/arch/ia64/include/asm/topology.h
@@ -63,7 +63,7 @@ void build_cpu_to_node_map(void);
.idle_idx = 1, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
@@ -89,7 +89,7 @@ void build_cpu_to_node_map(void);
.idle_idx = 2, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index c843677..a8cc564 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -17,7 +17,7 @@
.idle_idx = 2, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_FORK \
| SD_BALANCE_EXEC \
diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h
index bc3a093..10b979d 100644
--- a/arch/sparc/include/asm/topology_64.h
+++ b/arch/sparc/include/asm/topology_64.h
@@ -53,7 +53,7 @@ static inline int pcibus_to_node(struct pci_bus *pbus)
.idle_idx = 2, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_FORK \
| SD_BALANCE_EXEC \
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 7fafd1b..589f123 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -116,13 +116,11 @@ extern unsigned long node_remap_size[];

# define SD_CACHE_NICE_TRIES 1
# define SD_IDLE_IDX 1
-# define SD_FORKEXEC_IDX 0

#else

# define SD_CACHE_NICE_TRIES 2
# define SD_IDLE_IDX 2
-# define SD_FORKEXEC_IDX 1

#endif

@@ -137,7 +135,7 @@ extern unsigned long node_remap_size[];
.idle_idx = SD_IDLE_IDX, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = SD_FORKEXEC_IDX, \
+ .forkexec_idx = 0, \
\
.flags = 1*SD_LOAD_BALANCE \
| 1*SD_BALANCE_NEWIDLE \
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 4298745..936ab2b 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -121,7 +121,7 @@ int arch_update_cpu_topology(void);
.cache_nice_tries = 1, \
.busy_idx = 2, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
\
.flags = 1*SD_LOAD_BALANCE \
| 1*SD_BALANCE_NEWIDLE \
@@ -153,7 +153,7 @@ int arch_update_cpu_topology(void);
.idle_idx = 1, \
.newidle_idx = 0, \
.wake_idx = 0, \
- .forkexec_idx = 1, \
+ .forkexec_idx = 0, \
\
.flags = 1*SD_LOAD_BALANCE \
| 1*SD_BALANCE_NEWIDLE \