time: Convert CONFIG_GENERIC_TIME_VSYSCALL to CONFIG_GENERIC_TIME_VSYSCALL_OLD

To help migrate archtectures over to the new update_vsyscall method,
redfine CONFIG_GENERIC_TIME_VSYSCALL as CONFIG_GENERIC_TIME_VSYSCALL_OLD

Cc: Tony Luck <tony.luck@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index fd42bd452b75..489c86154d1f 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -13,7 +13,7 @@ config ARCH_CLOCKSOURCE_DATA
         bool
 
 # Timekeeping vsyscall support
-config GENERIC_TIME_VSYSCALL
+config GENERIC_TIME_VSYSCALL_OLD
         bool
 
 # ktime_t scalar 64bit nsec representation
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 02c19d3d8e0d..7c2851384c46 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -199,7 +199,7 @@ static void timekeeping_update(struct timekeeper *tk, bool clearntp)
                 ntp_clear();
         }
         xt = tk_xtime(tk);
-        update_vsyscall(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
+        update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
 }
 
 /**