From: Heiko Carstens Date: Tue, 23 Mar 2021 20:40:11 +0000 (+0100) Subject: s390/vdso: copy tod_steering_delta value to vdso_data page X-Git-Tag: microblaze-v5.14~247^2~9 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=72bbc226ed2ef0a46c165a482861fff00dd6d4e1;p=linux-2.6-microblaze.git s390/vdso: copy tod_steering_delta value to vdso_data page When converting the vdso assembler code to C it was forgotten to actually copy the tod_steering_delta value to vdso_data page. Which in turn means that tod clock steering will not work correctly. Fix this by simply copying the value whenever it is updated. Fixes: 4bff8cb54502 ("s390: convert to GENERIC_VDSO") Cc: # 5.10 Signed-off-by: Heiko Carstens --- diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 165da961f901..e37285a5101b 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -382,6 +382,7 @@ static void clock_sync_global(unsigned long delta) tod_steering_delta); tod_steering_end = now + (abs(tod_steering_delta) << 15); vdso_data->arch_data.tod_steering_end = tod_steering_end; + vdso_data->arch_data.tod_steering_delta = tod_steering_delta; /* Update LPAR offset. */ if (ptff_query(PTFF_QTO) && ptff(&qto, sizeof(qto), PTFF_QTO) == 0)