s390: Select POSIX_CPU_TIMERS_TASK_WORK

After support for VIRT_XFER_TO_GUEST_WORK is available for s390 it is
possible to also select HAVE_POSIX_CPU_TIMERS_TASK_WORK. See [1] for the
reasons why it makes sense, also for architectures which do not support
PREEMPT_RT.

[1] https://lore.kernel.org/all/20200716201923.228696399@linutronix.de

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 938e5df75b2df4c6698472b4fb20ec920229c519..014bf4cb3e9ff5eb7ace2fdb3229f96818b87d4a 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -238,6 +238,7 @@ config S390
        select HAVE_PERF_EVENTS
        select HAVE_PERF_REGS
        select HAVE_PERF_USER_STACK_DUMP
+       select HAVE_POSIX_CPU_TIMERS_TASK_WORK
        select HAVE_PREEMPT_DYNAMIC_KEY
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_RELIABLE_STACKTRACE