s390/headers: remove #ifdef __KERNEL__ from not exported headers

[~andy/linux] / init / main.c

diff --git a/init/main.c b/init/main.c
index c24805c824b981d92b134e84792b66b515b0ef46..1ca6b32c482875cbfd90fb315831c4c110d28414 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -87,7 +87,6 @@ extern void mca_init(void);
 extern void sbus_init(void);
 extern void prio_tree_init(void);
 extern void radix_tree_init(void);
-extern void free_initmem(void);
 #ifndef CONFIG_DEBUG_RODATA
 static inline void mark_rodata_ro(void) { }
 #endif
@@ -226,13 +225,9 @@ static int __init loglevel(char *str)
 
 early_param("loglevel", loglevel);
 
-/*
- * Unknown boot options get handed to init, unless they look like
- * unused parameters (modprobe will find them in /proc/cmdline).
- */
-static int __init unknown_bootoption(char *param, char *val)
+/* Change NUL term back to "=", to make "param" the whole string. */
+static int __init repair_env_string(char *param, char *val, const char *unused)
 {
-       /* Change NUL term back to "=", to make "param" the whole string. */
        if (val) {
                /* param=val or param="val"? */
                if (val == param+strlen(param)+1)
@@ -244,6 +239,16 @@ static int __init unknown_bootoption(char *param, char *val)
                } else
                        BUG();
        }
+       return 0;
+}
+
+/*
+ * Unknown boot options get handed to init, unless they look like
+ * unused parameters (modprobe will find them in /proc/cmdline).
+ */
+static int __init unknown_bootoption(char *param, char *val, const char *unused)
+{
+       repair_env_string(param, val, unused);
 
        /* Handle obsolete-style parameters */
        if (obsolete_checksetup(param))
@@ -380,7 +385,7 @@ static noinline void __init_refok rest_init(void)
 }
 
 /* Check for early params. */
-static int __init do_early_param(char *param, char *val)
+static int __init do_early_param(char *param, char *val, const char *unused)
 {
        const struct obs_kernel_param *p;
 
@@ -400,7 +405,7 @@ static int __init do_early_param(char *param, char *val)
 
 void __init parse_early_options(char *cmdline)
 {
-       parse_args("early options", cmdline, NULL, 0, do_early_param);
+       parse_args("early options", cmdline, NULL, 0, 0, 0, do_early_param);
 }
 
 /* Arch code calls this early on, or if not, just before other parsing. */
@@ -503,7 +508,7 @@ asmlinkage void __init start_kernel(void)
        parse_early_param();
        parse_args("Booting kernel", static_command_line, __start___param,
                   __stop___param - __start___param,
-                  &unknown_bootoption);
+                  0, 0, &unknown_bootoption);
 
        jump_label_init();
 
@@ -555,9 +560,6 @@ asmlinkage void __init start_kernel(void)
        early_boot_irqs_disabled = false;
        local_irq_enable();
 
-       /* Interrupts are enabled now so all GFP allocations are safe. */
-       gfp_allowed_mask = __GFP_BITS_MASK;
-
        kmem_cache_init_late();
 
        /*
@@ -699,16 +701,69 @@ int __init_or_module do_one_initcall(initcall_t fn)
 }
 
 
-extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[];
-
-static void __init do_initcalls(void)
+extern initcall_t __initcall_start[];
+extern initcall_t __initcall0_start[];
+extern initcall_t __initcall1_start[];
+extern initcall_t __initcall2_start[];
+extern initcall_t __initcall3_start[];
+extern initcall_t __initcall4_start[];
+extern initcall_t __initcall5_start[];
+extern initcall_t __initcall6_start[];
+extern initcall_t __initcall7_start[];
+extern initcall_t __initcall_end[];
+
+static initcall_t *initcall_levels[] __initdata = {
+       __initcall0_start,
+       __initcall1_start,
+       __initcall2_start,
+       __initcall3_start,
+       __initcall4_start,
+       __initcall5_start,
+       __initcall6_start,
+       __initcall7_start,
+       __initcall_end,
+};
+
+static char *initcall_level_names[] __initdata = {
+       "early",
+       "core",
+       "postcore",
+       "arch",
+       "subsys",
+       "fs",
+       "device",
+       "late",
+};
+
+static void __init do_initcall_level(int level)
 {
+       extern const struct kernel_param __start___param[], __stop___param[];
        initcall_t *fn;
 
-       for (fn = __early_initcall_end; fn < __initcall_end; fn++)
+       strcpy(static_command_line, saved_command_line);
+       parse_args(initcall_level_names[level],
+                  static_command_line, __start___param,
+                  __stop___param - __start___param,
+                  level, level,
+                  &repair_env_string);
+
+       for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
                do_one_initcall(*fn);
 }
 
+static void __init do_initcalls(void)
+{
+       int level;
+
+       for (level = 0; level < ARRAY_SIZE(initcall_levels) - 1; level++) {
+               pr_info("initlevel:%d=%s, %d registered initcalls\n",
+                       level, initcall_level_names[level],
+                       (int) (initcall_levels[level+1]
+                               - initcall_levels[level]));
+               do_initcall_level(level);
+       }
+}
+
 /*
  * Ok, the machine is now initialized. None of the devices
  * have been touched yet, but the CPU subsystem is up and
@@ -732,7 +787,7 @@ static void __init do_pre_smp_initcalls(void)
 {
        initcall_t *fn;
 
-       for (fn = __initcall_start; fn < __early_initcall_end; fn++)
+       for (fn = __initcall_start; fn < __initcall0_start; fn++)
                do_one_initcall(*fn);
 }
 
@@ -789,6 +844,10 @@ static int __init kernel_init(void * unused)
         * Wait until kthreadd is all set-up.
         */
        wait_for_completion(&kthreadd_done);
+
+       /* Now the scheduler is fully set up and can do blocking allocations */
+       gfp_allowed_mask = __GFP_BITS_MASK;
+
        /*
         * init can allocate pages on any node
         */