CVSROOT: /cvs
Module name: src
Changes by: kette...@cvs.openbsd.org 2015/03/10 14:12:39
Modified files:
sys/arch/amd64/include: pmap.h
sys/arch/amd64/amd64: pmap.c
Log message:
Make the amd64 pmap (more) mpsafe by protecting both the pmap itself and the
pv lists with a mutex. Rearange some code to avoid sleeping/spinning with
one of these locks held, and also take care that we don't allocate/free
any memory in that case. This should make pmap_enter(9), pmap_remove(9) and
pmap_page_protect(9) safe to use without holding the kernel lock.
Other architectures will follow.
ok mlarkin@, deraadt@
