Threading cleanup.. part 2 of several.

Make part of John Birrell's KSE patch permanent..
Specifically, remove:
Any reference of the ksegrp structure. This feature was
never fully utilised and made things overly complicated.
All code in the scheduler that tried to make threaded programs
fair to unthreaded programs.  Libpthread processes will already
do this to some extent and libthr processes already disable it.

Also:
Since this makes such a big change to the scheduler(s), take the opportunity
to rename some structures and elements that had to be moved anyhow.
This makes the code a lot more readable.

The ULE scheduler compiles again but I have no idea if it works.

The 4bsd scheduler still reqires a little cleaning and some functions that now do
ALMOST nothing will go away, but I thought I'd do that as a separate commit.

Tested by David Xu, and Dan Eischen using libthr and libpthread.

5 files changed, 0 insertions, 20 deletions

diff --git a/sys/arm/at91/kb920x_machdep.c b/sys/arm/at91/kb920x_machdep.c
index 9bff888..7cb5af5 100644
--- a/sys/arm/at91/kb920x_machdep.c
+++ b/sys/arm/at91/kb920x_machdep.c
@@ -455,11 +455,7 @@ initarm(void *arg, void *arg2)
 	undefined_handler_address = (u_int)undefinedinstruction_bounce;
 	undefined_init();
 				
-#ifdef KSE
-	proc_linkup(&proc0, &ksegrp0, &thread0);
-#else
 	proc_linkup(&proc0, &thread0);
-#endif
 	thread0.td_kstack = kernelstack.pv_va;
 	thread0.td_pcb = (struct pcb *)
 		(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
diff --git a/sys/arm/sa11x0/assabet_machdep.c b/sys/arm/sa11x0/assabet_machdep.c
index b8f2879..482f3a5 100644
--- a/sys/arm/sa11x0/assabet_machdep.c
+++ b/sys/arm/sa11x0/assabet_machdep.c
@@ -422,11 +422,7 @@ initarm(void *arg, void *arg2)
 
 	/* Set stack for exception handlers */
 	
-#ifdef KSE
-	proc_linkup(&proc0, &ksegrp0, &thread0);
-#else
 	proc_linkup(&proc0, &thread0);
-#endif
 	thread0.td_kstack = kernelstack.pv_va;
 	thread0.td_pcb = (struct pcb *)
 		(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
diff --git a/sys/arm/xscale/i80321/ep80219_machdep.c b/sys/arm/xscale/i80321/ep80219_machdep.c
index 75e9e19..9b787a6 100644
--- a/sys/arm/xscale/i80321/ep80219_machdep.c
+++ b/sys/arm/xscale/i80321/ep80219_machdep.c
@@ -429,11 +429,7 @@ initarm(void *arg, void *arg2)
 	undefined_handler_address = (u_int)undefinedinstruction_bounce;
 	undefined_init();
 				
-#ifdef KSE
-	proc_linkup(&proc0, &ksegrp0, &thread0);
-#else
 	proc_linkup(&proc0, &thread0);
-#endif
 	thread0.td_kstack = kernelstack.pv_va;
 	thread0.td_pcb = (struct pcb *)
 		(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
diff --git a/sys/arm/xscale/i80321/iq31244_machdep.c b/sys/arm/xscale/i80321/iq31244_machdep.c
index 2a52c04..1af0063 100644
--- a/sys/arm/xscale/i80321/iq31244_machdep.c
+++ b/sys/arm/xscale/i80321/iq31244_machdep.c
@@ -427,11 +427,7 @@ initarm(void *arg, void *arg2)
 	undefined_handler_address = (u_int)undefinedinstruction_bounce;
 	undefined_init();
 				
-#ifdef KSE
-	proc_linkup(&proc0, &ksegrp0, &thread0);
-#else
 	proc_linkup(&proc0, &thread0);
-#endif
 	thread0.td_kstack = kernelstack.pv_va;
 	thread0.td_pcb = (struct pcb *)
 		(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;
diff --git a/sys/arm/xscale/ixp425/avila_machdep.c b/sys/arm/xscale/ixp425/avila_machdep.c
index b6efecf..29c3d68 100644
--- a/sys/arm/xscale/ixp425/avila_machdep.c
+++ b/sys/arm/xscale/ixp425/avila_machdep.c
@@ -493,11 +493,7 @@ initarm(void *arg, void *arg2)
 	undefined_handler_address = (u_int)undefinedinstruction_bounce;
 	undefined_init();
 				
-#ifdef KSE
-	proc_linkup(&proc0, &ksegrp0, &thread0);
-#else
 	proc_linkup(&proc0, &thread0);
-#endif
 	thread0.td_kstack = kernelstack.pv_va;
 	thread0.td_pcb = (struct pcb *)
 		(thread0.td_kstack + KSTACK_PAGES * PAGE_SIZE) - 1;