Martin Schwidefsky bbae71bf9c s390/rwlock: use the interlocked-access facility 1 instructions
Make use of the load-and-add, load-and-or and load-and-and instructions
to atomically update the read-write lock without a compare-and-swap loop.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-09-25 10:52:13 +02:00
..
2014-02-21 08:50:20 +01:00