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
..
autoconf.c	Remove unneeded includes of sys/ipl.h and machine/ipl.h.	2001-05-15 23:22:29 +00:00
busdma_machdep.c	- Catch up to the VM mutex changes.	2001-05-30 00:03:13 +00:00
clock_if.m
clock.c	Minor build fixes.	2000-10-26 16:23:18 +00:00
db_disasm.c	Give names to app registers and control registers. Fix a typo handling	2000-10-16 08:44:34 +00:00
db_interface.c	A set of changes to reduce the number of include files the kernel	2001-07-08 04:56:07 +00:00
db_trace.c	Add 'hwatch' and 'dhwatch' ddb commands analogous to 'watch' and	2001-07-11 03:15:25 +00:00
elf_machdep.c
exception.s	Don't trash the user's pr on syscalls.	2001-04-24 15:54:23 +00:00
exception.S	Don't trash the user's pr on syscalls.	2001-04-24 15:54:23 +00:00
genassym.c	Catch up to the mtx_saveintr -> mtx_savecrit change.	2001-03-28 02:46:21 +00:00
ia64-gdbstub.c	A set of changes to reduce the number of include files the kernel	2001-07-08 04:56:07 +00:00
in_cksum.c	Ansify and fix warnings.	2000-09-29 16:53:39 +00:00
interrupt.c	Make this compile again. Broken since June 1.	2001-06-27 14:46:44 +00:00
locore.s	oops. prepare_usermode() died in August 2000 in the MI and x86 code.	2001-06-15 09:59:27 +00:00
locore.S	oops. prepare_usermode() died in August 2000 in the MI and x86 code.	2001-06-15 09:59:27 +00:00
machdep.c	Zap 'ptrace(PT_READ_U, ...)' and 'ptrace(PT_WRITE_U, ...)' since they	2001-08-08 05:25:15 +00:00
mem.c	Remove usage of nonexistent vm_mtx.	2001-08-06 12:52:17 +00:00
mp_machdep.c	GC some obsolete alpha code.	2001-07-31 14:35:36 +00:00
pal.s	Next round of fixes to the ia64 code. This includes simulated clock and	2000-10-04 17:53:03 +00:00
pal.S	Next round of fixes to the ia64 code. This includes simulated clock and	2000-10-04 17:53:03 +00:00
pmap.c	Make PMAP_SHPGPERPROC tunable. One shouldn't need to recompile a kernel	2001-07-27 01:08:59 +00:00
procfs_machdep.c	- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file	2001-05-23 09:42:29 +00:00
ssc.c	- Catch up to the VM mutex changes.	2001-05-30 00:03:13 +00:00
sscclock.c	Next round of fixes to the ia64 code. This includes simulated clock and	2000-10-04 17:53:03 +00:00
sscdisk.c	Make this compile again.	2001-08-06 12:52:55 +00:00
support.s	* Fix exception handling so that it actually works. We can now handle	2000-10-12 14:36:39 +00:00
support.S	* Fix exception handling so that it actually works. We can now handle	2000-10-12 14:36:39 +00:00
swtch.s	Rename switch_trampoline() to fork_trampoline() on the alpha and ia64.	2001-02-22 16:56:53 +00:00
sys_machdep.c
timerreg.h
trap.c	- Close races with signals and other AST's being triggered while we are in	2001-08-10 22:53:32 +00:00
vm_machdep.c	Move vm_page_zero_idle() from machine-dependant sections to a	2001-07-05 01:32:42 +00:00