diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 7 | ||||
| -rw-r--r-- | init/main.c | 13 |
2 files changed, 13 insertions, 7 deletions
diff --git a/init/Kconfig b/init/Kconfig index 79036797bf06..8b1ab81ecda8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1064,10 +1064,9 @@ config LD_DEAD_CODE_DATA_ELIMINATION depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION depends on EXPERT help - Select this if the architecture wants to do dead code and - data elimination with the linker by compiling with - -ffunction-sections -fdata-sections, and linking with - --gc-sections. + Enable this if you want to do dead code and data elimination with + the linker by compiling with -ffunction-sections -fdata-sections, + and linking with --gc-sections. This can reduce on disk and in-memory size of the kernel code and static data, particularly for small configs and diff --git a/init/main.c b/init/main.c index 3b4ada11ed52..38c68b593d0d 100644 --- a/init/main.c +++ b/init/main.c @@ -79,7 +79,7 @@ #include <linux/pti.h> #include <linux/blkdev.h> #include <linux/elevator.h> -#include <linux/sched_clock.h> +#include <linux/sched/clock.h> #include <linux/sched/task.h> #include <linux/sched/task_stack.h> #include <linux/context_tracking.h> @@ -561,8 +561,8 @@ asmlinkage __visible void __init start_kernel(void) setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); - boot_cpu_state_init(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ + boot_cpu_hotplug_init(); build_all_zonelists(NULL); page_alloc_init(); @@ -642,7 +642,6 @@ asmlinkage __visible void __init start_kernel(void) softirq_init(); timekeeping_init(); time_init(); - sched_clock_postinit(); printk_safe_init(); perf_event_init(); profile_init(); @@ -697,6 +696,7 @@ asmlinkage __visible void __init start_kernel(void) acpi_early_init(); if (late_time_init) late_time_init(); + sched_clock_init(); calibrate_delay(); pid_idr_init(); anon_vma_init(); @@ -1065,6 +1065,13 @@ static int __ref kernel_init(void *unused) jump_label_invalidate_initmem(); free_initmem(); mark_readonly(); + + /* + * Kernel mappings are now finalized - update the userspace page-table + * to finalize PTI. + */ + pti_finalize(); + system_state = SYSTEM_RUNNING; numa_default_policy(); |