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-rw-r--r--init/Kconfig15
-rw-r--r--init/main.c31
2 files changed, 13 insertions, 33 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 13627191a60..52847eec739 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -916,14 +916,17 @@ config MODULE_SRCVERSION_ALL
the version). With this option, such a "srcversion" field
will be created for all modules. If unsure, say N.
-config KMOD
- def_bool y
- help
- This is being removed soon. These days, CONFIG_MODULES
- implies CONFIG_KMOD, so use that instead.
-
endif # MODULES
+config INIT_ALL_POSSIBLE
+ bool
+ help
+ Back when each arch used to define their own cpu_online_map and
+ cpu_possible_map, some of them chose to initialize cpu_possible_map
+ with all 1s, and others with all 0s. When they were centralised,
+ it was better to provide this option than to break all the archs
+ and have several arch maintainers persuing me down dark alleys.
+
config STOP_MACHINE
bool
default y
diff --git a/init/main.c b/init/main.c
index 77cb720fed4..72a521c0da0 100644
--- a/init/main.c
+++ b/init/main.c
@@ -76,15 +76,6 @@
#include <asm/smp.h>
#endif
-/*
- * This is one of the first .c files built. Error out early if we have compiler
- * trouble.
- */
-
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0
-#warning gcc-4.1.0 is known to miscompile the kernel. A different compiler version is recommended.
-#endif
-
static int kernel_init(void *);
extern void init_IRQ(void);
@@ -381,12 +372,7 @@ EXPORT_SYMBOL(nr_cpu_ids);
/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */
static void __init setup_nr_cpu_ids(void)
{
- int cpu, highest_cpu = 0;
-
- for_each_possible_cpu(cpu)
- highest_cpu = cpu;
-
- nr_cpu_ids = highest_cpu + 1;
+ nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
}
#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
@@ -528,9 +514,9 @@ static void __init boot_cpu_init(void)
{
int cpu = smp_processor_id();
/* Mark the boot cpu "present", "online" etc for SMP and UP case */
- cpu_set(cpu, cpu_online_map);
- cpu_set(cpu, cpu_present_map);
- cpu_set(cpu, cpu_possible_map);
+ set_cpu_online(cpu, true);
+ set_cpu_present(cpu, true);
+ set_cpu_possible(cpu, true);
}
void __init __weak smp_setup_processor_id(void)
@@ -541,15 +527,6 @@ void __init __weak thread_info_cache_init(void)
{
}
-void __init __weak arch_early_irq_init(void)
-{
-}
-
-void __init __weak early_irq_init(void)
-{
- arch_early_irq_init();
-}
-
asmlinkage void __init start_kernel(void)
{
char * command_line;