ntp: fix ADJ_OFFSET_SS_READ bug and do_adjtimex() cleanup
Thanks to the review by Michael Kerrisk a bug in the recent
ADJ_OFFSET_SS_READ option was discovered, where the ntp time_offset was
inadvertently set by it. This fixes this by making the adjtime code
more separate from the ntp_adjtime code (both of which really want to
be separate syscalls).
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/timex.h b/include/linux/timex.h
index fc6035d..c00bcdd 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -141,8 +141,15 @@
#define ADJ_MICRO 0x1000 /* select microsecond resolution */
#define ADJ_NANO 0x2000 /* select nanosecond resolution */
#define ADJ_TICK 0x4000 /* tick value */
+
+#ifdef __KERNEL__
+#define ADJ_ADJTIME 0x8000 /* switch between adjtime/adjtimex modes */
+#define ADJ_OFFSET_SINGLESHOT 0x0001 /* old-fashioned adjtime */
+#define ADJ_OFFSET_READONLY 0x2000 /* read-only adjtime */
+#else
#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */
-#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */
+#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */
+#endif
/* xntp 3.4 compatibility names */
#define MOD_OFFSET ADJ_OFFSET