1 files changed, 27 insertions, 5 deletions

diff --git a/fs/compat.c b/fs/compat.c
index 5216c3fd7517..69baca5ad608 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -2206,19 +2206,41 @@ asmlinkage long compat_sys_signalfd(int ufd,
 
 #ifdef CONFIG_TIMERFD
 
-asmlinkage long compat_sys_timerfd(int ufd, int clockid, int flags,
-                                   const struct compat_itimerspec __user *utmr)
+asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
+                                   const struct compat_itimerspec __user *utmr,
+                                   struct compat_itimerspec __user *otmr)
 {
+        int error;
         struct itimerspec t;
         struct itimerspec __user *ut;
 
         if (get_compat_itimerspec(&t, utmr))
                 return -EFAULT;
-        ut = compat_alloc_user_space(sizeof(*ut));
-        if (copy_to_user(ut, &t, sizeof(t)))
+        ut = compat_alloc_user_space(2 * sizeof(struct itimerspec));
+        if (copy_to_user(&ut[0], &t, sizeof(t)))
                 return -EFAULT;
+        error = sys_timerfd_settime(ufd, flags, &ut[0], &ut[1]);
+        if (!error && otmr)
+                error = (copy_from_user(&t, &ut[1], sizeof(struct itimerspec)) ||
+                         put_compat_itimerspec(otmr, &t)) ? -EFAULT: 0;
+
+        return error;
+}
+
+asmlinkage long compat_sys_timerfd_gettime(int ufd,
+                                   struct compat_itimerspec __user *otmr)
+{
+        int error;
+        struct itimerspec t;
+        struct itimerspec __user *ut;
 
-        return sys_timerfd(ufd, clockid, flags, ut);
+        ut = compat_alloc_user_space(sizeof(struct itimerspec));
+        error = sys_timerfd_gettime(ufd, ut);
+        if (!error)
+                error = (copy_from_user(&t, ut, sizeof(struct itimerspec)) ||
+                         put_compat_itimerspec(otmr, &t)) ? -EFAULT: 0;
+
+        return error;
 }
 
 #endif /* CONFIG_TIMERFD */