Remove arbitrary limits used by the zone system

The zone allocator could limit the size of its zones to an arbitrary
value set at zinit() time. There is no such parameter with the slab
module. As a result of removing those limits, the kern/mach_param.h
header becomes empty, and is simply removed altogether.

* Makefrag.am (libkernel_a_SOURCES): Remove kern/mach_param.h.
* i386/i386/fpu.c: Remove #include <kern/mach_param.h>.
* i386/i386/machine_task.c: Likewise.
* i386/i386/pcb.c: Likewise.
* ipc/ipc_init.c: Likewise.
(ipc_space_max): Remove variable.
(ipc_tree_entry_max): Likewise.
(ipc_port_max): Likewise.
(ipc_pset_max): Likewise.
* ipc/ipc_init.h (IPC_ZONE_TYPE): Remove macro.
(ipc_space_max): Remove extern declaration.
(ipc_tree_entry_max): Likewise.
(ipc_port_max): Likewise.
(ipc_pset_max): Likewise.
* ipc/ipc_hash.c (ipc_hash_init): Don't use ipc_tree_entry_max to
compute ipc_hash_global_size.
* ipc/ipc_marequest.c: Remove #include <kern/mach_param.h>.
(ipc_marequest_max): Remove variable.
(ipc_marequest_init): Don't use ipc_marequest_max to compute
ipc_marequest_size.
(ipc_marequest_info): Return (unsigned int)-1 in maxp.
* kern/act.c: Remove #include <kern/mach_param.h>.
* kern/mach_clock.c: Likewise.
* kern/priority.c: Likewise.
* kern/task.c: Likewise.
* kern/thread.c: Likewise.
* vm/memory_object_proxy.c: Likewise.
* vm/vm_fault.c: Likewise.

4 files changed, 5 insertions, 27 deletions

diff --git a/ipc/ipc_hash.c b/ipc/ipc_hash.c
index c241289..a1ca225 100644
--- a/ipc/ipc_hash.c
+++ b/ipc/ipc_hash.c
@@ -537,11 +537,8 @@ ipc_hash_init(void)
 
 	/* if not configured, initialize ipc_hash_global_size */
 
-	if (ipc_hash_global_size == 0) {
-		ipc_hash_global_size = ipc_tree_entry_max >> 8;
-		if (ipc_hash_global_size < 32)
-			ipc_hash_global_size = 32;
-	}
+	if (ipc_hash_global_size == 0)
+		ipc_hash_global_size = 256;
 
 	/* make sure it is a power of two */
 
diff --git a/ipc/ipc_init.c b/ipc/ipc_init.c
index 36d0f19..ca7e791 100644
--- a/ipc/ipc_init.c
+++ b/ipc/ipc_init.c
@@ -35,7 +35,6 @@
  */
 
 #include <mach/kern_return.h>
-#include <kern/mach_param.h>
 #include <kern/ipc_host.h>
 #include <kern/slab.h>
 #include <vm/vm_map.h>
@@ -57,11 +56,6 @@ static struct vm_map ipc_kernel_map_store;
 vm_map_t ipc_kernel_map = &ipc_kernel_map_store;
 vm_size_t ipc_kernel_map_size = 8 * 1024 * 1024;
 
-int ipc_space_max = SPACE_MAX;
-int ipc_tree_entry_max = ITE_MAX;
-int ipc_port_max = PORT_MAX;
-int ipc_pset_max = SET_MAX;
-
 /*
  *	Routine:	ipc_bootstrap
  *	Purpose:
diff --git a/ipc/ipc_init.h b/ipc/ipc_init.h
index b2f1dd4..8dd64bb 100644
--- a/ipc/ipc_init.h
+++ b/ipc/ipc_init.h
@@ -37,14 +37,6 @@
 #ifndef	_IPC_IPC_INIT_H_
 #define _IPC_IPC_INIT_H_
 
-/* all IPC zones should be exhaustible */
-#define IPC_ZONE_TYPE	ZONE_EXHAUSTIBLE
-
-extern int ipc_space_max;
-extern int ipc_tree_entry_max;
-extern int ipc_port_max;
-extern int ipc_pset_max;
-
 /*
  * Exported interfaces
  */
diff --git a/ipc/ipc_marequest.c b/ipc/ipc_marequest.c
index 2087c67..6036967 100644
--- a/ipc/ipc_marequest.c
+++ b/ipc/ipc_marequest.c
@@ -37,7 +37,6 @@
 #include <mach/message.h>
 #include <mach/port.h>
 #include <kern/lock.h>
-#include <kern/mach_param.h>
 #include <kern/kalloc.h>
 #include <kern/slab.h>
 #include <ipc/port.h>
@@ -59,7 +58,6 @@
 
 
 struct kmem_cache ipc_marequest_cache;
-int ipc_marequest_max = IMAR_MAX;
 
 #define	imar_alloc()		((ipc_marequest_t) kmem_cache_alloc(&ipc_marequest_cache))
 #define	imar_free(imar)		kmem_cache_free(&ipc_marequest_cache, (vm_offset_t) (imar))
@@ -102,11 +100,8 @@ ipc_marequest_init(void)
 
 	/* if not configured, initialize ipc_marequest_size */
 
-	if (ipc_marequest_size == 0) {
-		ipc_marequest_size = ipc_marequest_max >> 8;
-		if (ipc_marequest_size < 16)
-			ipc_marequest_size = 16;
-	}
+	if (ipc_marequest_size == 0)
+		ipc_marequest_size = 16;
 
 	/* make sure it is a power of two */
 
@@ -436,7 +431,7 @@ ipc_marequest_info(maxp, info, count)
 		info[i].hib_count = bucket_count;
 	}
 
-	*maxp = ipc_marequest_max;
+	*maxp = (unsigned int)-1;
 	return ipc_marequest_size;
 }