Changes from v1: - Renamed trywake to wake_up. - Added Oleg's review tags.
Hi, Here's an updated version of the pcpu rwsem writer wait/wake changes with the abstractions wanted by Oleg. Patch 1 adds rcuwait (for a lack of better name), and patch 2 trivially makes use of it. Has survived torture testing, which is actually very handy in this case particularly dealing with equal amount of reader and writer threads. Applies on top of Linus' tree (4.10-rc3). Thanks. Davidlohr Bueso (2): sched: Introduce rcuwait machinery locking/percpu-rwsem: Replace waitqueue with rcuwait include/linux/percpu-rwsem.h | 8 +++--- include/linux/rcuwait.h | 63 +++++++++++++++++++++++++++++++++++++++++++ kernel/exit.c | 30 +++++++++++++++++++++ kernel/locking/percpu-rwsem.c | 7 +++-- 4 files changed, 100 insertions(+), 8 deletions(-) create mode 100644 include/linux/rcuwait.h -- 2.6.6
