Commit-ID: 933b0618d8b2a59c7a0742e43836544e02f1e9bd
Gitweb: http://git.kernel.org/tip/933b0618d8b2a59c7a0742e43836544e02f1e9bd
Author: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
AuthorDate: Wed, 16 Dec 2009 18:04:31 +0100
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Wed, 16 Dec 2009 19:01:53 +0100
sched: Mark boot-cpu active before smp_init()
A UP machine has 1 active cpu, not having the boot-cpu in the
active map when starting the scheduler confuses things.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
LKML-Reference: <20091216170517.423469527@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
init/main.c | 7 +------
1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/init/main.c b/init/main.c
index c3db4a9..dac44a9 100644
--- a/init/main.c
+++ b/init/main.c
@@ -369,12 +369,6 @@ static void __init smp_init(void)
{
unsigned int cpu;
- /*
- * Set up the current CPU as possible to migrate to.
- * The other ones will be done by cpu_up/cpu_down()
- */
- set_cpu_active(smp_processor_id(), true);
-
/* FIXME: This should be done in userspace --RR */
for_each_present_cpu(cpu) {
if (num_online_cpus() >= setup_max_cpus)
@@ -486,6 +480,7 @@ static void __init boot_cpu_init(void)
int cpu = smp_processor_id();
/* Mark the boot cpu "present", "online" etc for SMP and UP case */
set_cpu_online(cpu, true);
+ set_cpu_active(cpu, true);
set_cpu_present(cpu, true);
set_cpu_possible(cpu, true);
}
--
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