diff options
| author | Dave Airlie <airlied@redhat.com> | 2018-01-18 09:32:15 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-01-18 09:32:15 +1000 |
| commit | 4a6cc7a44e98a0460bd094b68c75f0705fdc450a (patch) | |
| tree | b8c86a1e0342b1166ab52c4d79e404eede57abec /init | |
| parent | 8563188e37b000979ab66521f4337df9a3453223 (diff) | |
| parent | a8750ddca918032d6349adbf9a4b6555e7db20da (diff) | |
BackMerge tag 'v4.15-rc8' into drm-next
Linux 4.15-rc8
Daniel requested this for so the intel CI won't fall over on drm-next
so often.
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 14 | ||||
| -rw-r--r-- | init/main.c | 9 |
2 files changed, 18 insertions, 5 deletions
diff --git a/init/Kconfig b/init/Kconfig index 2934249fba46..a9a2e2c86671 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -461,10 +461,15 @@ endmenu # "CPU/Task time and stats accounting" config CPU_ISOLATION bool "CPU isolation" + depends on SMP || COMPILE_TEST + default y help Make sure that CPUs running critical tasks are not disturbed by any source of "noise" such as unbound workqueues, timers, kthreads... - Unbound jobs get offloaded to housekeeping CPUs. + Unbound jobs get offloaded to housekeeping CPUs. This is driven by + the "isolcpus=" boot parameter. + + Say Y if unsure. source "kernel/rcu/Kconfig" @@ -1392,6 +1397,13 @@ config BPF_SYSCALL Enable the bpf() system call that allows to manipulate eBPF programs and maps via file descriptors. +config BPF_JIT_ALWAYS_ON + bool "Permanently enable BPF JIT and remove BPF interpreter" + depends on BPF_SYSCALL && HAVE_EBPF_JIT && BPF_JIT + help + Enables BPF JIT and removes BPF interpreter to avoid + speculative execution of BPF instructions by the interpreter + config USERFAULTFD bool "Enable userfaultfd() system call" select ANON_INODES diff --git a/init/main.c b/init/main.c index e96e3a14533c..a8100b954839 100644 --- a/init/main.c +++ b/init/main.c @@ -75,6 +75,7 @@ #include <linux/slab.h> #include <linux/perf_event.h> #include <linux/ptrace.h> +#include <linux/pti.h> #include <linux/blkdev.h> #include <linux/elevator.h> #include <linux/sched_clock.h> @@ -504,6 +505,10 @@ static void __init mm_init(void) pgtable_init(); vmalloc_init(); ioremap_huge_init(); + /* Should be run before the first non-init thread is created */ + init_espfix_bsp(); + /* Should be run after espfix64 is set up. */ + pti_init(); } asmlinkage __visible void __init start_kernel(void) @@ -679,10 +684,6 @@ asmlinkage __visible void __init start_kernel(void) if (efi_enabled(EFI_RUNTIME_SERVICES)) efi_enter_virtual_mode(); #endif -#ifdef CONFIG_X86_ESPFIX64 - /* Should be run before the first non-init thread is created */ - init_espfix_bsp(); -#endif thread_stack_cache_init(); cred_init(); fork_init(); |