diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 99 |
1 files changed, 57 insertions, 42 deletions
diff --git a/init/main.c b/init/main.c index f605bcc0b..ecbc28828 100644 --- a/init/main.c +++ b/init/main.c @@ -17,7 +17,6 @@ #include <linux/sched.h> #include <linux/kernel.h> #include <linux/tty.h> -#include <linux/head.h> #include <linux/unistd.h> #include <linux/string.h> #include <linux/timer.h> @@ -85,6 +84,11 @@ extern void sysctl_init(void); extern void filescache_init(void); extern void signals_init(void); +extern void device_setup(void); +extern void binfmt_setup(void); +extern void free_initmem(void); +extern void filesystem_setup(void); + #ifdef CONFIG_ARCH_ACORN extern void ecard_init(void); #endif @@ -481,7 +485,7 @@ static struct dev_name_struct { { NULL, 0 } }; -__initfunc(kdev_t name_to_kdev_t(char *line)) +kdev_t __init name_to_kdev_t(char *line) { int base = 0; if (strncmp(line,"/dev/",5) == 0) { @@ -500,7 +504,7 @@ __initfunc(kdev_t name_to_kdev_t(char *line)) return to_kdev_t(base + simple_strtoul(line,NULL,base?10:16)); } -__initfunc(static void root_dev_setup(char *line, int *num)) +static void __init root_dev_setup(char *line, int *num) { ROOT_DEV = name_to_kdev_t(line); } @@ -828,32 +832,32 @@ static struct kernel_param raw_params[] __initdata = { }; #ifdef CONFIG_BLK_DEV_RAM -__initfunc(static void ramdisk_start_setup(char *str, int *ints)) +static void __init ramdisk_start_setup(char *str, int *ints) { if (ints[0] > 0 && ints[1] >= 0) rd_image_start = ints[1]; } -__initfunc(static void load_ramdisk(char *str, int *ints)) +static void __init load_ramdisk(char *str, int *ints) { if (ints[0] > 0 && ints[1] >= 0) rd_doload = ints[1] & 1; } -__initfunc(static void prompt_ramdisk(char *str, int *ints)) +static void __init prompt_ramdisk(char *str, int *ints) { if (ints[0] > 0 && ints[1] >= 0) rd_prompt = ints[1] & 1; } -__initfunc(static void ramdisk_size(char *str, int *ints)) +static void __init ramdisk_size(char *str, int *ints) { if (ints[0] > 0 && ints[1] >= 0) rd_size = ints[1]; } #endif -__initfunc(static int checksetup(char *line)) +static int __init checksetup(char *line) { int i, ints[11]; @@ -890,7 +894,7 @@ unsigned long loops_per_sec = (1<<12); better than 1% */ #define LPS_PREC 8 -__initfunc(void calibrate_delay(void)) +void __init calibrate_delay(void) { unsigned long ticks, loopbit; int lps_precision = LPS_PREC; @@ -942,7 +946,7 @@ __initfunc(void calibrate_delay(void)) * This routine also checks for options meant for the kernel. * These options are not given to init - they are for internal kernel use only. */ -__initfunc(static void parse_options(char *line)) +static void __init parse_options(char *line) { char *next; int args, envs; @@ -1017,6 +1021,8 @@ int cpu_idle(void *unused) idle(); } +#define smp_init() do { } while (0) + #else /* @@ -1026,24 +1032,14 @@ int cpu_idle(void *unused) extern int cpu_idle(void * unused); /* Called by boot processor to activate the rest. */ -__initfunc(static void smp_init(void)) +static void __init smp_init(void) { /* Get other processors into their bootup holding patterns. */ smp_boot_cpus(); -} - -/* - * The autoprobe routines assume CPU#0 on the i386 - * so we don't actually set the game in motion until - * they are finished. - */ - -__initfunc(static void smp_begin(void)) -{ smp_threads_ready=1; smp_commence(); -} - +} + #endif extern void initialize_secondary(void); @@ -1052,7 +1048,7 @@ extern void initialize_secondary(void); * Activate the first processor. */ -__initfunc(asmlinkage void start_kernel(void)) +asmlinkage void __init start_kernel(void) { char * command_line; @@ -1131,13 +1127,18 @@ __initfunc(asmlinkage void start_kernel(void)) #if defined(CONFIG_QUOTA) dquot_init_hash(); #endif + check_bugs(); printk("POSIX conformance testing by UNIFIX\n"); -#ifdef __SMP__ smp_init(); -#endif - check_bugs(); + /* + * Ok, the machine is now initialized. None of the devices + * have been touched yet, but the CPU subsystem is up and + * running, and memory management works. + * + * Now we can finally start doing some real work.. + */ #if defined(CONFIG_MTRR) /* Do this after SMP initialization */ /* @@ -1145,10 +1146,9 @@ __initfunc(asmlinkage void start_kernel(void)) * everything is up" style function where this would belong better * than in init/main.c.. */ - mtrr_init (); + mtrr_init(); #endif - sock_init(); #ifdef CONFIG_SYSCTL sysctl_init(); #endif @@ -1207,18 +1207,21 @@ static int do_linuxrc(void * shell) return execve(shell, argv, envp_init); } -__initfunc(static void no_initrd(char *s,int *ints)) +static void __init no_initrd(char *s,int *ints) { mount_initrd = 0; } #endif -static int init(void * unused) +static void __init do_basic_setup(void) { #ifdef CONFIG_BLK_DEV_INITRD int real_root_mountflags; #endif + /* Networking initialization needs a process context */ + sock_init(); + /* Launch bdflush from here, instead of the old syscall way. */ kernel_thread(bdflush, NULL, CLONE_FS | CLONE_FILES | CLONE_SIGHAND); /* Start the background pageout daemon. */ @@ -1239,16 +1242,18 @@ static int init(void * unused) if (initrd_start && mount_initrd) root_mountflags &= ~MS_RDONLY; else mount_initrd =0; #endif - setup(0); -#ifdef __SMP__ - /* - * With the devices probed and setup we can - * now enter SMP mode. - */ - - smp_begin(); -#endif + /* Set up devices .. */ + device_setup(); + + /* .. executable formats .. */ + binfmt_setup(); + + /* .. filesystems .. */ + filesystem_setup(); + + /* Mount the root filesystem.. */ + mount_root(); #ifdef CONFIG_UMSDOS_FS { @@ -1284,9 +1289,19 @@ static int init(void * unused) } } #endif +} + +static int init(void * unused) +{ + do_basic_setup(); + + /* + * Ok, we have completed the initial bootup, and + * we're essentially up and running. Get rid of the + * initmem segments and start the user-mode stuff.. + */ + free_initmem(); - setup(1); - if (open("/dev/console", O_RDWR, 0) < 0) printk("Warning: unable to open an initial console.\n"); |