s390/stp: unify stp_work_mutex and clock_sync_mutex

No need to have two mutexes, and while at it rename it to
stp_mutex.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Sven Schnelle 2020-09-21 17:23:42 +02:00 • committed by Vasily Gorbik
commit ad5ceb33ee