common compat_sys_trimer_create

Index: linux-2.6/kernel/compat.c
===================================================================
@@ -514,6 +514,24 @@
 	return 0;
 } 
 
+long compat_sys_timer_create(clockid_t which_clock,
+			struct compat_sigevent __user *timer_event_spec,
+			timer_t __user *created_timer_id)
+{
+	struct sigevent __user *event = NULL;
+
+	if (timer_event_spec) {
+		struct sigevent kevent;
+
+		event = compat_alloc_user_space(sizeof(*event));
+		if (get_compat_sigevent(&kevent, timer_event_spec) ||
+		    copy_to_user(event, &kevent, sizeof(*event)))
+			return -EFAULT;
+	}
+
+	return sys_timer_create(which_clock, event, created_timer_id);
+}
+
 long compat_sys_timer_settime(timer_t timer_id, int flags,
 			  struct compat_itimerspec __user *new, 
 			  struct compat_itimerspec __user *old)

@@ -649,8 +667,6 @@
 		? -EFAULT : 0;
 }
 
-/* timer_create is architecture specific because it needs sigevent conversion */
-
 long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask,
 		       unsigned long bitmap_size)
 {

Index: linux-2.6/arch/ia64/ia32/sys_ia32.c
===================================================================
@@ -2559,34 +2559,6 @@
 	return 0;
 }
 
-asmlinkage long
-sys32_timer_create(u32 clock, struct compat_sigevent __user *se32, timer_t __user *timer_id)
-{
-	struct sigevent se;
-	mm_segment_t oldfs;
-	timer_t t;
-	long err;
-
-	if (se32 == NULL)
-		return sys_timer_create(clock, NULL, timer_id);
-
-	if (get_compat_sigevent(&se, se32))
-		return -EFAULT;
-
-	if (!access_ok(VERIFY_WRITE,timer_id,sizeof(timer_t)))
-		return -EFAULT;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	err = sys_timer_create(clock, (struct sigevent __user *) &se, (timer_t __user *) &t);
-	set_fs(oldfs);
-
-	if (!err)
-		err = __put_user (t, timer_id);
-
-	return err;
-}
-
 long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, 
 			__u32 len_low, __u32 len_high, int advice)
 { 

Index: linux-2.6/arch/powerpc/kernel/sys_ppc32.c
===================================================================
@@ -956,38 +956,6 @@
 			     advice);
 }
 
-long ppc32_timer_create(clockid_t clock,
-			struct compat_sigevent __user *ev32,
-			timer_t __user *timer_id)
-{
-	sigevent_t event;
-	timer_t t;
-	long err;
-	mm_segment_t savefs;
-
-	if (ev32 == NULL)
-		return sys_timer_create(clock, NULL, timer_id);
-
-	if (get_compat_sigevent(&event, ev32))
-		return -EFAULT;
-
-	if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t)))
-		return -EFAULT;
-
-	savefs = get_fs();
-	set_fs(KERNEL_DS);
-	/* The __user pointer casts are valid due to the set_fs() */
-	err = sys_timer_create(clock,
-		(sigevent_t __user *) &event,
-		(timer_t __user *) &t);
-	set_fs(savefs);
-
-	if (err == 0)
-		err = __put_user(t, timer_id);
-
-	return err;
-}
-
 asmlinkage long compat_sys_add_key(const char __user *_type,
 			      const char __user *_description,
 			      const void __user *_payload,

Index: linux-2.6/arch/s390/kernel/compat_linux.c
===================================================================
@@ -1014,38 +1014,6 @@
 }
 
 /*
- * Wrapper function for sys_timer_create.
- */
-extern asmlinkage long
-sys_timer_create(clockid_t, struct sigevent *, timer_t *);
-
-asmlinkage long
-sys32_timer_create(clockid_t which_clock, struct compat_sigevent *se32,
-		timer_t *timer_id)
-{
-	struct sigevent se;
-	timer_t ktimer_id;
-	mm_segment_t old_fs;
-	long ret;
-
-	if (se32 == NULL)
-		return sys_timer_create(which_clock, NULL, timer_id);
-
-	if (get_compat_sigevent(&se, se32))
-		return -EFAULT;
-
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	ret = sys_timer_create(which_clock, &se, &ktimer_id);
-	set_fs(old_fs);
-
-	if (!ret)
-		ret = put_user (ktimer_id, timer_id);
-
-	return ret;
-}
-
-/*
  * 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64.
  * These need to rewrite the advise values for POSIX_FADV_{DONTNEED,NOREUSE}
  * because the 31 bit values differ from the 64 bit values.

Index: linux-2.6/arch/sparc64/kernel/sys_sparc32.c
===================================================================
@@ -1120,39 +1120,3 @@
 	return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
 				  buf, len);
 }
-
-extern asmlinkage long
-sys_timer_create(clockid_t which_clock,
-		 struct sigevent __user *timer_event_spec,
-		 timer_t __user *created_timer_id);
-
-long
-sys32_timer_create(u32 clock, struct compat_sigevent __user *se32,
-		   timer_t __user *timer_id)
-{
-	struct sigevent se;
-	mm_segment_t oldfs;
-	timer_t t;
-	long err;
-
-	if (se32 == NULL)
-		return sys_timer_create(clock, NULL, timer_id);
-
-	if (get_compat_sigevent(&se, se32))
-		return -EFAULT;
-
-	if (!access_ok(VERIFY_WRITE,timer_id,sizeof(timer_t)))
-		return -EFAULT;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	err = sys_timer_create(clock,
-			       (struct sigevent __user *) &se,
-			       (timer_t __user *) &t);
-	set_fs(oldfs);
-
-	if (!err)
-		err = __put_user (t, timer_id);
-
-	return err;
-}

Index: linux-2.6/arch/x86_64/ia32/sys_ia32.c
===================================================================
@@ -969,25 +969,6 @@
 	return sys_kill(pid, sig);
 }
  
-extern asmlinkage long
-sys_timer_create(clockid_t which_clock,
-		 struct sigevent __user *timer_event_spec,
-		 timer_t __user * created_timer_id);
-
-long
-sys32_timer_create(u32 clock, struct compat_sigevent __user *se32, timer_t __user *timer_id)
-{
-	struct sigevent __user *p = NULL;
-	if (se32) { 
-		struct sigevent se;
-		p = compat_alloc_user_space(sizeof(struct sigevent));
-		if (get_compat_sigevent(&se, se32) ||
-		    copy_to_user(p, &se, sizeof(se)))
-			return -EFAULT;
-	} 
-	return sys_timer_create(clock, p, timer_id);
-} 
-
 long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high, 
 			__u32 len_low, __u32 len_high, int advice)
 {