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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2013-08-23 14:45:58 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-08-28 09:19:23 +0200
commit0587d409ec53312f735d2004d5f47f8effee1ea9 (patch)
tree7ab956aaf3d7d238f8bd40a8f50d60302cb3363a /arch/s390/kernel/time.c
parent6b169ac9b4342ff3a1499bdeb7596aa4f1bc401b (diff)
s390/time: return with irqs disabled from psw_idle
Modify the psw_idle waiting logic in entry[64].S to return with interrupts disabled. This avoids potential issues with udelay and interrupt loops as interrupts are not reenabled after clock comparator interrupts. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/time.c')
-rw-r--r--arch/s390/kernel/time.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 876546b9cfa..064c3082ab3 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -92,7 +92,6 @@ void clock_comparator_work(void)
struct clock_event_device *cd;
S390_lowcore.clock_comparator = -1ULL;
- set_clock_comparator(S390_lowcore.clock_comparator);
cd = &__get_cpu_var(comparators);
cd->event_handler(cd);
}