From: blaisorblade@yahoo.it

Keeping this function does not makes sense because it's a copied (and
buggy) copy of sys_time.  The only difference is that now.tv_sec (which is
a time_t, i.e.  a 64-bit long) is copied (and truncated) into a int
(32-bit).

The prototype is the same (they both take a long __user *), so let's drop
this and redirect it to sys_time (and make sure it exists by defining
__ARCH_WANT_SYS_TIME).

Only disadvantage is that the sys_stime definition is also compiled (may be
fixed if needed by adding a separate __ARCH_WANT_SYS_STIME macro, and
defining it for all arch's defining __ARCH_WANT_SYS_TIME except x86_64).

Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 arch/x86_64/kernel/sys_x86_64.c |   14 --------------
 include/asm-x86_64/unistd.h     |    3 ++-
 2 files changed, 2 insertions(+), 15 deletions(-)

diff -puN arch/x86_64/kernel/sys_x86_64.c~x86_64-remove-duplicated-sys_time64 arch/x86_64/kernel/sys_x86_64.c
--- devel/arch/x86_64/kernel/sys_x86_64.c~x86_64-remove-duplicated-sys_time64	2005-07-30 00:44:01.000000000 -0700
+++ devel-akpm/arch/x86_64/kernel/sys_x86_64.c	2005-07-30 00:44:01.000000000 -0700
@@ -154,17 +154,3 @@ asmlinkage long sys_uname(struct new_uts
 		err |= copy_to_user(&name->machine, "i686", 5); 		
 	return err ? -EFAULT : 0;
 }
-
-asmlinkage long sys_time64(long __user * tloc)
-{
-	struct timeval now; 
-	int i; 
-
-	do_gettimeofday(&now);
-	i = now.tv_sec;
-	if (tloc) {
-		if (put_user(i,tloc))
-			i = -EFAULT;
-	}
-	return i;
-}
diff -puN include/asm-x86_64/unistd.h~x86_64-remove-duplicated-sys_time64 include/asm-x86_64/unistd.h
--- devel/include/asm-x86_64/unistd.h~x86_64-remove-duplicated-sys_time64	2005-07-30 00:44:01.000000000 -0700
+++ devel-akpm/include/asm-x86_64/unistd.h	2005-07-30 00:44:01.000000000 -0700
@@ -462,7 +462,7 @@ __SYSCALL(__NR_fremovexattr, sys_fremove
 #define __NR_tkill	200
 __SYSCALL(__NR_tkill, sys_tkill) 
 #define __NR_time      201
-__SYSCALL(__NR_time, sys_time64)
+__SYSCALL(__NR_time, sys_time)
 #define __NR_futex     202
 __SYSCALL(__NR_futex, sys_futex)
 #define __NR_sched_setaffinity    203
@@ -608,6 +608,7 @@ do { \
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_TIME
 #endif
 
_