6 files changed, 21 insertions, 36 deletions

diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 97974c1bdd1..cd145eda357 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -44,8 +44,9 @@ void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
 	PT_REGS_SP(regs) = esp;
 }
 
-static long execve1(char *file, char __user * __user *argv,
-		    char __user *__user *env)
+static long execve1(const char *file,
+		    const char __user *const __user *argv,
+		    const char __user *const __user *env)
 {
 	long error;
 
@@ -61,7 +62,7 @@ static long execve1(char *file, char __user * __user *argv,
 	return error;
 }
 
-long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
+long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
 {
 	long err;
 
@@ -71,7 +72,7 @@ long um_execve(char *file, char __user *__user *argv, char __user *__user *env)
 	return err;
 }
 
-long sys_execve(char __user *file, char __user *__user *argv,
+long sys_execve(const char __user *file, char __user *__user *argv,
 		char __user *__user *env)
 {
 	long error;
diff --git a/arch/um/kernel/internal.h b/arch/um/kernel/internal.h
index 3bda43c7a78..1303a105fe9 100644
--- a/arch/um/kernel/internal.h
+++ b/arch/um/kernel/internal.h
@@ -1 +1 @@
-extern long um_execve(char *file, char __user *__user *argv, char __user *__user *env);
+extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);
diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 836fc9b9470..0ae0dfcfbff 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -58,6 +58,9 @@ EXPORT_SYMBOL(os_accept_connection);
 EXPORT_SYMBOL(os_rcv_fd);
 EXPORT_SYMBOL(run_helper);
 EXPORT_SYMBOL(start_thread);
+EXPORT_SYMBOL(os_major);
+EXPORT_SYMBOL(os_minor);
+EXPORT_SYMBOL(os_makedev);
 
 EXPORT_SYMBOL(add_sigio_fd);
 EXPORT_SYMBOL(ignore_sigio_fd);
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 484509948ee..e0510496596 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -7,9 +7,6 @@
 #include "linux/ptrace.h"
 #include "linux/sched.h"
 #include "asm/uaccess.h"
-#ifdef CONFIG_PROC_MM
-#include "proc_mm.h"
-#endif
 #include "skas_ptrace.h"
 
 
@@ -158,24 +155,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 	}
 #endif
-#ifdef CONFIG_PROC_MM
-	case PTRACE_SWITCH_MM: {
-		struct mm_struct *old = child->mm;
-		struct mm_struct *new = proc_mm_get_mm(data);
-
-		if (IS_ERR(new)) {
-			ret = PTR_ERR(new);
-			break;
-		}
-
-		atomic_inc(&new->mm_users);
-		child->mm = new;
-		child->active_mm = new;
-		mmput(old);
-		ret = 0;
-		break;
-	}
-#endif
 #ifdef PTRACE_ARCH_PRCTL
 	case PTRACE_ARCH_PRCTL:
 		/* XXX Calls ptrace on the host - needs some SMP thinking */
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 4393173923f..5ddb246626d 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -51,14 +51,16 @@ long old_mmap(unsigned long addr, unsigned long len,
 	return err;
 }
 
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+int kernel_execve(const char *filename,
+		  const char *const argv[],
+		  const char *const envp[])
 {
 	mm_segment_t fs;
 	int ret;
 
 	fs = get_fs();
 	set_fs(KERNEL_DS);
-	ret = um_execve((char *)filename, (char __user *__user *)argv,
+	ret = um_execve(filename, (char __user *__user *)argv,
 			(char __user *__user *) envp);
 	set_fs(fs);
 
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index c8b9c469fcd..a08d9fab81f 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -102,16 +102,16 @@ static void __init setup_itimer(void)
 	clockevents_register_device(&itimer_clockevent);
 }
 
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
 {
-	long long nsecs;
-
-	timer_init();
+	long long nsecs = os_nsecs();
 
-	nsecs = os_nsecs();
-	set_normalized_timespec(&wall_to_monotonic, -nsecs / NSEC_PER_SEC,
-				-nsecs % NSEC_PER_SEC);
-	set_normalized_timespec(&xtime, nsecs / NSEC_PER_SEC,
+	set_normalized_timespec(ts, nsecs / NSEC_PER_SEC,
 				nsecs % NSEC_PER_SEC);
+}
+
+void __init time_init(void)
+{
+	timer_init();
 	late_time_init = setup_itimer;
 }