tree 491ec6fe0b0f16da7f05f4edc924ba9a60986588
parent 6ac2a4ddd10d6916785b4c566d521025c855f823
author Heiko Carstens <heiko.carstens@de.ibm.com> 1252657714 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1252657783 +0200

[S390] atomic ops: add effecient atomic64 support for 31 bit

Use compare double and swap to implement efficient atomic64 ops for 31 bit.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>