| commit | bbae71bf9c2fe90dc5642d4cddbbc1994861fd92 | [log] [tgz] |
|---|---|---|
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | Mon Sep 22 16:34:38 2014 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Thu Sep 25 10:52:13 2014 +0200 |
| tree | 80ce9213a904817502ffc588eb31d5731cc9a250 | |
| parent | 94232a4332de3bc210e7067fd43521b3eb12336a [diff] |
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>