diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 50 |
1 files changed, 34 insertions, 16 deletions
diff --git a/init/main.c b/init/main.c index 2858be732f6d..b0c11cbf5ddf 100644 --- a/init/main.c +++ b/init/main.c @@ -12,8 +12,10 @@ #define DEBUG /* Enable initcall_debug */ #include <linux/types.h> +#include <linux/extable.h> #include <linux/module.h> #include <linux/proc_fs.h> +#include <linux/binfmts.h> #include <linux/kernel.h> #include <linux/syscalls.h> #include <linux/stackprotector.h> @@ -26,6 +28,7 @@ #include <linux/bootmem.h> #include <linux/acpi.h> #include <linux/tty.h> +#include <linux/nmi.h> #include <linux/percpu.h> #include <linux/kmod.h> #include <linux/vmalloc.h> @@ -60,6 +63,7 @@ #include <linux/device.h> #include <linux/kthread.h> #include <linux/sched.h> +#include <linux/sched/init.h> #include <linux/signal.h> #include <linux/idr.h> #include <linux/kgdb.h> @@ -70,17 +74,20 @@ #include <linux/shmem_fs.h> #include <linux/slab.h> #include <linux/perf_event.h> -#include <linux/file.h> #include <linux/ptrace.h> #include <linux/blkdev.h> #include <linux/elevator.h> #include <linux/sched_clock.h> +#include <linux/sched/task.h> +#include <linux/sched/task_stack.h> #include <linux/context_tracking.h> #include <linux/random.h> #include <linux/list.h> #include <linux/integrity.h> #include <linux/proc_ns.h> #include <linux/io.h> +#include <linux/cache.h> +#include <linux/rodata_test.h> #include <asm/io.h> #include <asm/bugs.h> @@ -448,6 +455,8 @@ void __init parse_early_param(void) done = 1; } +void __init __weak arch_post_acpi_subsys_init(void) { } + void __init __weak smp_setup_processor_id(void) { } @@ -550,14 +559,21 @@ asmlinkage __visible void __init start_kernel(void) if (WARN(!irqs_disabled(), "Interrupts were enabled *very* early, fixing it\n")) local_irq_disable(); - idr_init_cache(); + radix_tree_init(); + + /* + * Allow workqueue creation and work item queueing/cancelling + * early. Work item execution depends on kthreads and starts after + * workqueue_init(). + */ + workqueue_init_early(); + rcu_init(); /* trace_printk() and trace points may be used after this */ trace_init(); context_tracking_init(); - radix_tree_init(); /* init some links before init_ISA_irqs() */ early_irq_init(); init_IRQ(); @@ -569,7 +585,7 @@ asmlinkage __visible void __init start_kernel(void) timekeeping_init(); time_init(); sched_clock_postinit(); - printk_nmi_init(); + printk_safe_init(); perf_event_init(); profile_init(); call_function_init(); @@ -614,7 +630,6 @@ asmlinkage __visible void __init start_kernel(void) numa_policy_init(); if (late_time_init) late_time_init(); - sched_clock_init(); calibrate_delay(); pidmap_init(); anon_vma_init(); @@ -636,9 +651,8 @@ asmlinkage __visible void __init start_kernel(void) security_init(); dbg_late_init(); vfs_caches_init(); + pagecache_init(); signals_init(); - /* rootfs populating might need page-writeback */ - page_writeback_init(); proc_root_init(); nsfs_init(); cpuset_init(); @@ -649,10 +663,10 @@ asmlinkage __visible void __init start_kernel(void) check_bugs(); acpi_subsystem_init(); + arch_post_acpi_subsys_init(); sfi_init_late(); if (efi_enabled(EFI_RUNTIME_SERVICES)) { - efi_late_init(); efi_free_boot_services(); } @@ -868,7 +882,6 @@ static void __init do_basic_setup(void) do_ctors(); usermodehelper_enable(); do_initcalls(); - random_int_secret_init(); } static void __init do_pre_smp_initcalls(void) @@ -914,19 +927,22 @@ static int try_to_run_init_process(const char *init_filename) static noinline void __init kernel_init_freeable(void); -#ifdef CONFIG_DEBUG_RODATA -static bool rodata_enabled = true; +#if defined(CONFIG_STRICT_KERNEL_RWX) || defined(CONFIG_STRICT_MODULE_RWX) +bool rodata_enabled __ro_after_init = true; static int __init set_debug_rodata(char *str) { return strtobool(str, &rodata_enabled); } __setup("rodata=", set_debug_rodata); +#endif +#ifdef CONFIG_STRICT_KERNEL_RWX static void mark_readonly(void) { - if (rodata_enabled) + if (rodata_enabled) { mark_rodata_ro(); - else + rodata_test(); + } else pr_info("Kernel memory protection disabled.\n"); } #else @@ -948,8 +964,6 @@ static int __ref kernel_init(void *unused) system_state = SYSTEM_RUNNING; numa_default_policy(); - flush_delayed_fput(); - rcu_end_inkernel_boot(); if (ramdisk_execute_command) { @@ -980,7 +994,7 @@ static int __ref kernel_init(void *unused) return 0; panic("No working init found. Try passing init= option to kernel. " - "See Linux Documentation/init.txt for guidance."); + "See Linux Documentation/admin-guide/init.rst for guidance."); } static noinline void __init kernel_init_freeable(void) @@ -1006,6 +1020,10 @@ static noinline void __init kernel_init_freeable(void) smp_prepare_cpus(setup_max_cpus); + workqueue_init(); + + init_mm_internals(); + do_pre_smp_initcalls(); lockup_detector_init(); |