8 files changed, 38 insertions, 36 deletions

diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 7a0e04e34b..b65ca115ef 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -33,5 +33,9 @@ include $(srctree)/arch/i386/Makefile.cpu
 # prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
 cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
 
+# Prevent sprintf in nfsd from being converted to strcpy and resulting in
+# an unresolved reference.
+cflags-y += -ffreestanding
+
 CFLAGS += $(cflags-y)
 USER_CFLAGS += $(cflags-y)
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index efa3d33c0b..310980b321 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -120,20 +120,11 @@ extern int is_syscall(unsigned long addr);
 extern void free_irq(unsigned int, void *);
 extern int cpu(void);
 
+extern void time_init_kern(void);
+
 /* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */
 extern int __cant_sleep(void);
 extern void segv_handler(int sig, union uml_pt_regs *regs);
 extern void sigio_handler(int sig, union uml_pt_regs *regs);
 
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 528cf623f8..86f51d04c9 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -84,6 +84,16 @@ void timer_irq(union uml_pt_regs *regs)
         }
 }
 
+
+void time_init_kern(void)
+{
+        unsigned long long nsecs;
+
+        nsecs = os_nsecs();
+        set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION,
+                                -nsecs % BILLION);
+}
+
 void do_boot_timer_handler(struct sigcontext * sc)
 {
         struct pt_regs regs;
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 3a0ac38e97..90912aaca7 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -59,7 +59,7 @@ static __init void do_uml_initcalls(void)
         initcall_t *call;
 
         call = &__uml_initcall_start;
-        while (call < &__uml_initcall_end){;
+        while (call < &__uml_initcall_end){
                 (*call)();
                 call++;
         }
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6f7626775a..280c4fb9b5 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -81,20 +81,12 @@ void uml_idle_timer(void)
         set_interval(ITIMER_REAL);
 }
 
-extern void ktime_get_ts(struct timespec *ts);
-#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
-
 void time_init(void)
 {
-        struct timespec now;
-
         if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR)
                 panic("Couldn't set SIGVTALRM handler");
         set_interval(ITIMER_VIRTUAL);
-
-        do_posix_clock_monotonic_gettime(&now);
-        wall_to_monotonic.tv_sec = -now.tv_sec;
-        wall_to_monotonic.tv_nsec = -now.tv_nsec;
+        time_init_kern();
 }
 
 unsigned long long os_nsecs(void)
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c
index 749dd1bfe6..710d5fb807 100644
--- a/arch/um/sys-i386/syscalls.c
+++ b/arch/um/sys-i386/syscalls.c
@@ -99,11 +99,12 @@ long sys_ipc (uint call, int first, int second,
 
         switch (call) {
         case SEMOP:
-                return sys_semtimedop(first, (struct sembuf *) ptr, second,
-                                      NULL);
+                return sys_semtimedop(first, (struct sembuf __user *) ptr,
+                                      second, NULL);
         case SEMTIMEDOP:
-                return sys_semtimedop(first, (struct sembuf *) ptr, second,
-                                      (const struct timespec *) fifth);
+                return sys_semtimedop(first, (struct sembuf __user *) ptr,
+                                      second,
+                                      (const struct timespec __user *) fifth);
         case SEMGET:
                 return sys_semget (first, second, third);
         case SEMCTL: {
diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c
index a4c46a8af0..9edf114faf 100644
--- a/arch/um/sys-x86_64/signal.c
+++ b/arch/um/sys-x86_64/signal.c
@@ -21,7 +21,7 @@
 #include "skas.h"
 
 static int copy_sc_from_user_skas(struct pt_regs *regs,
-                                 struct sigcontext *from)
+                                 struct sigcontext __user *from)
 {
        int err = 0;
 
@@ -54,7 +54,8 @@ static int copy_sc_from_user_skas(struct pt_regs *regs,
        return(err);
 }
 
-int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
+int copy_sc_to_user_skas(struct sigcontext __user *to,
+                         struct _fpstate __user *to_fp,
                          struct pt_regs *regs, unsigned long mask,
                          unsigned long sp)
 {
@@ -106,10 +107,11 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
 #endif
 
 #ifdef CONFIG_MODE_TT
-int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
+int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from,
                          int fpsize)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate *to_fp;
+        struct _fpstate __user *from_fp;
         unsigned long sigs;
         int err;
 
@@ -124,13 +126,14 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
         return(err);
 }
 
-int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp,
+int copy_sc_to_user_tt(struct sigcontext __user *to, struct _fpstate __user *fp,
                        struct sigcontext *from, int fpsize, unsigned long sp)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate __user *to_fp;
+        struct _fpstate *from_fp;
         int err;
 
-        to_fp = (fp ? fp : (struct _fpstate *) (to + 1));
+        to_fp = (fp ? fp : (struct _fpstate __user *) (to + 1));
         from_fp = from->fpstate;
         err = copy_to_user(to, from, sizeof(*to));
         /* The SP in the sigcontext is the updated one for the signal
@@ -158,7 +161,8 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from)
        return(ret);
 }
 
-static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
+static int copy_sc_to_user(struct sigcontext __user *to,
+                           struct _fpstate __user *fp,
                            struct pt_regs *from, unsigned long mask,
                            unsigned long sp)
 {
@@ -169,7 +173,7 @@ static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
 
 struct rt_sigframe
 {
-       char *pretcode;
+       char __user *pretcode;
        struct ucontext uc;
        struct siginfo info;
 };
@@ -188,7 +192,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
 
         frame = (struct rt_sigframe __user *)
                 round_down(stack_top - sizeof(struct rt_sigframe), 16) - 8;
-        frame = (struct rt_sigframe *) ((unsigned long) frame - 128);
+        frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128);
 
         if (!access_ok(VERIFY_WRITE, fp, sizeof(struct _fpstate)))
                 goto out;
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index 6acee5c4ad..6fce9f45df 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -45,7 +45,7 @@ static long arch_prctl_tt(int code, unsigned long addr)
         case ARCH_GET_GS:
                 ret = arch_prctl(code, (unsigned long) &tmp);
                 if(!ret)
-                        ret = put_user(tmp, &addr);
+                        ret = put_user(tmp, (long __user *)addr);
                 break;
         default:
                 ret = -EINVAL;