7 files changed, 36 insertions, 24 deletions
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 493092efaa3b..6fa90a845e4c 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -3,24 +3,23 @@ include include/asm-generic/Kbuild.asm
 header-y += boot.h
 header-y += bootparam.h
 header-y += debugreg.h
+header-y += e820.h
+header-y += hw_breakpoint.h
+header-y += hyperv.h
+header-y += ist.h
 header-y += ldt.h
+header-y += mce.h
 header-y += msr-index.h
+header-y += msr.h
+header-y += mtrr.h
+header-y += posix_types_32.h
+header-y += posix_types_64.h
 header-y += prctl.h
+header-y += processor-flags.h
 header-y += ptrace-abi.h
 header-y += sigcontext32.h
 header-y += ucontext.h
-header-y += processor-flags.h
-header-y += hw_breakpoint.h
-header-y += hyperv.h
-
-unifdef-y += e820.h
-unifdef-y += ist.h
-unifdef-y += mce.h
-unifdef-y += msr.h
-unifdef-y += mtrr.h
-unifdef-y += posix_types_32.h
-unifdef-y += posix_types_64.h
-unifdef-y += unistd_32.h
-unifdef-y += unistd_64.h
-unifdef-y += vm86.h
-unifdef-y += vsyscall.h
+header-y += unistd_32.h
+header-y += unistd_64.h
+header-y += vm86.h
+header-y += vsyscall.h
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index fa7c0b974761..5bdfca86581b 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -33,5 +33,11 @@ extern void __show_regs(struct pt_regs *regs, int all);
 extern void show_regs(struct pt_regs *regs);
 extern unsigned long oops_begin(void);
 extern void oops_end(unsigned long, struct pt_regs *, int signr);
+#ifdef CONFIG_KEXEC
+extern int in_crash_kexec;
+#else
+/* no crash dump is ever in progress if no crash kernel can be kexec'd */
+#define in_crash_kexec 0
+#endif
 
 #endif /* _ASM_X86_KDEBUG_H */
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index 2984a25ff383..f686f49e8b7b 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -26,6 +26,7 @@ struct mm_struct;
 struct vm_area_struct;
 
 extern pgd_t swapper_pg_dir[1024];
+extern pgd_t trampoline_pg_dir[1024];
 
 static inline void pgtable_cache_init(void) { }
 static inline void check_pgt_cache(void) { }
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
index cf4e2e381cba..cb238526a9f1 100644
--- a/arch/x86/include/asm/sys_ia32.h
+++ b/arch/x86/include/asm/sys_ia32.h
@@ -18,13 +18,13 @@
 #include <asm/ia32.h>
 
 /* ia32/sys_ia32.c */
-asmlinkage long sys32_truncate64(char __user *, unsigned long, unsigned long);
+asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
 asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
 
-asmlinkage long sys32_stat64(char __user *, struct stat64 __user *);
-asmlinkage long sys32_lstat64(char __user *, struct stat64 __user *);
+asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
+asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
 asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
-asmlinkage long sys32_fstatat(unsigned int, char __user *,
+asmlinkage long sys32_fstatat(unsigned int, const char __user *,
 			      struct stat64 __user *, int);
 struct mmap_arg_struct32;
 asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
@@ -49,12 +49,12 @@ asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
 asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
 
 asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
-asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32);
+asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
 
 asmlinkage long sys32_personality(unsigned long);
 asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
 
-asmlinkage long sys32_execve(char __user *, compat_uptr_t __user *,
+asmlinkage long sys32_execve(const char __user *, compat_uptr_t __user *,
 			     compat_uptr_t __user *, struct pt_regs *);
 asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);
 
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 5c044b43e9a7..f1d8b441fc77 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -23,8 +23,9 @@ long sys_iopl(unsigned int, struct pt_regs *);
 /* kernel/process.c */
 int sys_fork(struct pt_regs *);
 int sys_vfork(struct pt_regs *);
-long sys_execve(char __user *, char __user * __user *,
-		char __user * __user *, struct pt_regs *);
+long sys_execve(const char __user *,
+		const char __user *const __user *,
+		const char __user *const __user *, struct pt_regs *);
 long sys_clone(unsigned long, unsigned long, void __user *,
 	       void __user *, struct pt_regs *);
 
diff --git a/arch/x86/include/asm/trampoline.h b/arch/x86/include/asm/trampoline.h
index cb507bb05d79..4dde797c0578 100644
--- a/arch/x86/include/asm/trampoline.h
+++ b/arch/x86/include/asm/trampoline.h
@@ -13,14 +13,17 @@ extern unsigned char *trampoline_base;
 
 extern unsigned long init_rsp;
 extern unsigned long initial_code;
+extern unsigned long initial_page_table;
 extern unsigned long initial_gs;
 
 #define TRAMPOLINE_SIZE roundup(trampoline_end - trampoline_data, PAGE_SIZE)
 
 extern unsigned long setup_trampoline(void);
+extern void __init setup_trampoline_page_table(void);
 extern void __init reserve_trampoline_memory(void);
 #else
-static inline void reserve_trampoline_memory(void) {};
+static inline void setup_trampoline_page_table(void) {}
+static inline void reserve_trampoline_memory(void) {}
 #endif /* CONFIG_X86_TRAMPOLINE */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index c0427295e8f5..1ca132fc0d03 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -59,5 +59,7 @@ extern void check_tsc_sync_source(int cpu);
 extern void check_tsc_sync_target(void);
 
 extern int notsc_setup(char *);
+extern void save_sched_clock_state(void);
+extern void restore_sched_clock_state(void);
 
 #endif /* _ASM_X86_TSC_H */