X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=init%2Fmain.c;h=833a67df1f7e06c121c4b9b982893592ca7219df;hb=62429f434091586d54b37b8dd46076e7c08b27b9;hp=c691f5f7fc27b40ea6b2df39e2fef9ac52b4cd0a;hpb=e5e54bc86a1fed9849b22fd736c30b23c4719046;p=deliverable%2Flinux.git

diff --git a/init/main.c b/init/main.c
index c691f5f7fc27..833a67df1f7e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -232,30 +232,26 @@ EXPORT_SYMBOL(loops_per_jiffy);
 
 static int __init debug_kernel(char *str)
 {
-	if (*str)
-		return 0;
 	console_loglevel = 10;
-	return 1;
+	return 0;
 }
 
 static int __init quiet_kernel(char *str)
 {
-	if (*str)
-		return 0;
 	console_loglevel = 4;
-	return 1;
+	return 0;
 }
 
-__setup("debug", debug_kernel);
-__setup("quiet", quiet_kernel);
+early_param("debug", debug_kernel);
+early_param("quiet", quiet_kernel);
 
 static int __init loglevel(char *str)
 {
 	get_option(&str, &console_loglevel);
-	return 1;
+	return 0;
 }
 
-__setup("loglevel=", loglevel);
+early_param("loglevel", loglevel);
 
 /*
  * Unknown boot options get handed to init, unless they look like
@@ -363,10 +359,31 @@ static void __init smp_init(void)
 #endif
 
 static inline void setup_per_cpu_areas(void) { }
+static inline void setup_nr_cpu_ids(void) { }
 static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 
 #else
 
+#if NR_CPUS > BITS_PER_LONG
+cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL;
+EXPORT_SYMBOL(cpu_mask_all);
+#endif
+
+/* Setup number of possible processor ids */
+int nr_cpu_ids __read_mostly = NR_CPUS;
+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;
+}
+
 #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 
@@ -541,6 +558,7 @@ asmlinkage void __init start_kernel(void)
 	setup_command_line(command_line);
 	unwind_setup();
 	setup_per_cpu_areas();
+	setup_nr_cpu_ids();
 	smp_prepare_boot_cpu();	/* arch-specific boot-cpu hooks */
 
 	/*
@@ -556,7 +574,6 @@ asmlinkage void __init start_kernel(void)
 	preempt_disable();
 	build_all_zonelists();
 	page_alloc_init();
-	enable_debug_pagealloc();
 	printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line);
 	parse_early_param();
 	parse_args("Booting kernel", static_command_line, __start___param,
@@ -612,6 +629,7 @@ asmlinkage void __init start_kernel(void)
 	vfs_caches_init_early();
 	cpuset_init_early();
 	mem_init();
+	enable_debug_pagealloc();
 	cpu_hotplug_init();
 	kmem_cache_init();
 	setup_per_cpu_pageset();
@@ -815,7 +833,7 @@ static int __init kernel_init(void * unused)
 	/*
 	 * init can run on any cpu.
 	 */
-	set_cpus_allowed(current, CPU_MASK_ALL);
+	set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR);
 	/*
 	 * Tell the world that we're going to be the grim
 	 * reaper of innocent orphaned children.
@@ -826,7 +844,6 @@ static int __init kernel_init(void * unused)
 	 */
 	init_pid_ns.child_reaper = current;
 
-	__set_special_pids(1, 1);
 	cad_pid = task_pid(current);
 
 	smp_prepare_cpus(setup_max_cpus);