John Baldwin 688ebe120c - Close races with signals and other AST's being triggered while we are in ... the process of exiting the kernel. The ast() function now loops as long as the PS_ASTPENDING or PS_NEEDRESCHED flags are set. It returns with preemption disabled so that any further AST's that arrive via an interrupt will be delayed until the low-level MD code returns to user mode. - Use u_int's to store the tick counts for profiling purposes so that we do not need sched_lock just to read p_sticks. This also closes a problem where the call to addupc_task() could screw up the arithmetic due to non-atomic reads of p_sticks. - Axe need_proftick(), aston(), astoff(), astpending(), need_resched(), clear_resched(), and resched_wanted() in favor of direct bit operations on p_sflag. - Fix up locking with sched_lock some. In addupc_intr(), use sched_lock to ensure pr_addr and pr_ticks are updated atomically with setting PS_OWEUPC. In ast() we clear pr_ticks atomically with clearing PS_OWEUPC. We also do not grab the lock just to test a flag. - Simplify the handling of Giant in ast() slightly. Reviewed by: bde (mostly)		2001-08-10 22:53:32 +00:00
..
alpha	- Close races with signals and other AST's being triggered while we are in	2001-08-10 22:53:32 +00:00
compile	Don't need the .keep_me files. Obrien and I committed past each other.	2001-07-01 23:35:44 +00:00
conf	You were knocked senseless by the Boomerang, spun around by the Cyclone,	2001-07-23 20:44:54 +00:00
include	- Close races with signals and other AST's being triggered while we are in	2001-08-10 22:53:32 +00:00
isa	Sanity guard- return ENODEV if we don't have a good IRQ resource.	2001-07-11 02:24:28 +00:00
linux	With this commit, I hereby pronounce gensetdefs past its use-by date.	2001-06-13 10:58:39 +00:00
mcbus	fix alpha-MD compile errors after the vm_mtx commit	2001-05-20 16:22:46 +00:00
osf1	With Alfred's permission, remove vm_mtx in favor of a fine-grained approach	2001-07-04 16:20:28 +00:00
pci	Fix Assembler buglet: Warning: .end directive names different symbol than .ent	2001-06-14 19:33:16 +00:00
tc	If we're not going to use am7990_shutdown, comment it all out.	2001-06-14 19:36:37 +00:00
tlsb	fix alpha-MD compile errors after the vm_mtx commit	2001-05-20 16:22:46 +00:00
Makefile	Add a dopey makefile to do the tags dance, which is probably not perfect	2000-12-31 23:26:34 +00:00