K 10
svn:author
V 6
marcel
K 8
svn:date
V 27
2007-06-07T16:04:23.000000Z
K 7
svn:log
V 499
Eliminate pmap_install(), which was used to wrap pmap_switch() and
grab sched_lock. This would serialize calls to pmap_switch from
cpu_switch(). With the introduction of thread_lock, this is not
possible anymore, because thread_lock is not a single lock. It
varies.  Secondly and most importantly, it's not needed at all. The
only requirement for pmap_switch() is that it's not preempted
while in the middle of updating the CPU and PCPU. In other words,
it's a critical region. No locking required.

END