[PATCH] Check if cpu can be onlined before calling smp_prepare_cpu()
- Moved check for online cpu out of smp_prepare_cpu()
- Moved default declaration of smp_prepare_cpu() to kernel/cpu.c
- Removed lock_cpu_hotplug() from smp_prepare_cpu() to around it, since
its called from cpu_up() as well now.
- Removed clearing from cpu_present_map during cpu_offline as it breaks
using cpu_up() directly during a subsequent online operation.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: "Li, Shaohua" <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/power/smp.c b/kernel/power/smp.c
index 911fc62..5957312 100644
--- a/kernel/power/smp.c
+++ b/kernel/power/smp.c
@@ -49,9 +49,7 @@
printk("Thawing cpus ...\n");
for_each_cpu_mask(cpu, frozen_cpus) {
- error = smp_prepare_cpu(cpu);
- if (!error)
- error = cpu_up(cpu);
+ error = cpu_up(cpu);
if (!error) {
printk("CPU%d is up\n", cpu);
continue;