| commit | d59b93da5e572703e1a7311c13dd3472a4e56e30 | [log] [tgz] |
|---|---|---|
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | Fri Sep 19 14:29:31 2014 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Thu Sep 25 10:52:05 2014 +0200 |
| tree | 4c75073780f54bc9785433256eee3d6d70eaf868 | |
| parent | 46b05c7bd51edafb8c8da088b49bddf7f78d48f9 [diff] |
s390/rwlock: use directed yield for write-locked rwlocks Add an owner field to the arch_rwlock_t to be able to pass the timeslice of a virtual CPU with diagnose 0x9c to the lock owner in case the rwlock is write-locked. The undirected yield in case the rwlock is acquired writable but the lock is read-locked is removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>