git: kernel - Refactor the lwkt_token code, making it faster
commit c6fbe95aea00066c24a4d2c2f84bb848374c08c7
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sun Dec 20 19:33:07 2009 -0800
kernel - Refactor the lwkt_token code, making it faster
* Rewrite the core token functions and revamp the structures. The
lwkt_token structure now contains just a single element, a pointer
to the on-stack lwkt_tokref. The lwkt_tokref now contains the
owner id.
* Recursive tokens are still fully supported and coded trivially.
* Critical sections and spinlocks are no longer needed or used by
the lwkt_token code. Token aquisition is basically a single
atomic_cmpset_ptr() call in the critical path. Everything runs
ultra clean now.
* Improve the pool token API.
* Remove extranious cruft
Summary of changes:
sys/ddb/db_ps.c | 2 +-
sys/kern/kern_lockf.c | 2 +-
sys/kern/lwkt_token.c | 484 ++++++++++++++++++++++++++-----------------------
sys/sys/thread.h | 49 +----
sys/sys/thread2.h | 4 +-
5 files changed, 270 insertions(+), 271 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c6fbe95aea00066c24a4d2c2f84bb848374c08c7
--
DragonFly BSD source repository