Module Name:	syssrc
Committed By:	nathanw
Date:		Wed Jul 17 19:52:26 UTC 2002

Modified Files:
	syssrc/sys/kern [nathanw_sa]: kern_sa.c

Log Message:
In sa_yield(), record the current LWP as the idle LWP, and be careful
not to yield if there is a pending asynchronous upcall.

Implement a routine to handle preemption, to remove sa-related logic
from preempt() itself.

Don't try to remove a sleeping (idle) LWP from a run queue.


To generate a diff of this commit:
cvs rdiff -r1.1.2.25 -r1.1.2.26 syssrc/sys/kern/kern_sa.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.