--- Gnu-Mach/ipc/ipc_marequest.c	2020/09/02 04:42:36	1.1.1.2
+++ Gnu-Mach/ipc/ipc_marequest.c	2020/09/02 04:45:07	1.1.1.3
@@ -34,14 +34,11 @@
  *	Functions to handle msg-accepted requests.
  */
 
-#include <mach_ipc_compat.h>
-
 #include <mach/message.h>
 #include <mach/port.h>
 #include <kern/lock.h>
-#include <kern/mach_param.h>
 #include <kern/kalloc.h>
-#include <kern/zalloc.h>
+#include <kern/slab.h>
 #include <ipc/port.h>
 #include <ipc/ipc_init.h>
 #include <ipc/ipc_space.h>
@@ -51,7 +48,6 @@
 #include <ipc/ipc_marequest.h>
 #include <ipc/ipc_notify.h>
 
-#include <mach_ipc_debug.h>
 #if	MACH_IPC_DEBUG
 #include <mach/kern_return.h>
 #include <mach_debug/hash_info.h>
@@ -61,11 +57,10 @@
 #endif
 
 
-zone_t ipc_marequest_zone;
-int ipc_marequest_max = IMAR_MAX;
+struct kmem_cache ipc_marequest_cache;
 
-#define	imar_alloc()		((ipc_marequest_t) zalloc(ipc_marequest_zone))
-#define	imar_free(imar)		zfree(ipc_marequest_zone, (vm_offset_t) (imar))
+#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))
 
 typedef unsigned int ipc_marequest_index_t;
 
@@ -99,17 +94,13 @@ ipc_marequest_bucket_t ipc_marequest_tab
  */
 
 void
-ipc_marequest_init()
+ipc_marequest_init(void)
 {
 	ipc_marequest_index_t i;
 
-	/* if not configured, initialize ipc_marequest_size */
+	/* 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;
-	}
+	ipc_marequest_size = IPC_MAREQUEST_SIZE;
 
 	/* make sure it is a power of two */
 
@@ -145,11 +136,8 @@ ipc_marequest_init()
 		bucket->imarb_head = IMAR_NULL;
 	}
 
-	ipc_marequest_zone =
-		zinit(sizeof(struct ipc_marequest),
-		      ipc_marequest_max * sizeof(struct ipc_marequest),
-		      sizeof(struct ipc_marequest),
-		      IPC_ZONE_TYPE, "ipc msg-accepted requests");
+	kmem_cache_init(&ipc_marequest_cache, "ipc_marequest",
+			sizeof(struct ipc_marequest), 0, NULL, NULL, NULL, 0);
 }
 
 /*
@@ -160,9 +148,6 @@ ipc_marequest_init()
  *
  *		The "notify" argument should name a receive right
  *		that is used to create the send-once notify port.
- *
- *		[MACH_IPC_COMPAT] If "notify" is MACH_PORT_NULL,
- *		then an old-style msg-accepted request is created.
  *	Conditions:
  *		Nothing locked; refs held for space and port.
  *	Returns:
@@ -187,10 +172,6 @@ ipc_marequest_create(space, port, notify
 	ipc_marequest_t marequest;
 	ipc_marequest_bucket_t bucket;
 
-#if	!MACH_IPC_COMPAT
-	assert(notify != MACH_PORT_NULL);
-#endif	/* !MACH_IPC_COMPAT */
-
 	marequest = imar_alloc();
 	if (marequest == IMAR_NULL)
 		return MACH_SEND_NO_NOTIFY;
@@ -225,11 +206,6 @@ ipc_marequest_create(space, port, notify
 			return MACH_SEND_NOTIFY_IN_PROGRESS;
 		}
 
-#if	MACH_IPC_COMPAT
-		if (notify == MACH_PORT_NULL)
-			soright = IP_NULL;
-		else
-#endif	/* MACH_IPC_COMPAT */
 		if ((soright = ipc_port_lookup_notify(space, notify))
 								== IP_NULL) {
 			is_write_unlock(space);
@@ -252,11 +228,6 @@ ipc_marequest_create(space, port, notify
 
 		imarb_unlock(bucket);
 	} else {
-#if	MACH_IPC_COMPAT
-		if (notify == MACH_PORT_NULL)
-			soright = IP_NULL;
-		else
-#endif	/* MACH_IPC_COMPAT */
 		if ((soright = ipc_port_lookup_notify(space, notify))
 								== IP_NULL) {
 			is_write_unlock(space);
@@ -371,9 +342,6 @@ ipc_marequest_destroy(marequest)
 	ipc_space_t space = marequest->imar_space;
 	mach_port_t name;
 	ipc_port_t soright;
-#if	MACH_IPC_COMPAT
-	ipc_port_t sright = IP_NULL;
-#endif	/* MACH_IPC_COMPAT */
 
 	is_write_lock(space);
 
@@ -408,10 +376,6 @@ ipc_marequest_destroy(marequest)
 
 			entry->ie_bits &= ~IE_BITS_MAREQUEST;
 
-#if	MACH_IPC_COMPAT
-			if (soright == IP_NULL)
-				sright = ipc_space_make_notify(space);
-#endif	/* MACH_IPC_COMPAT */
 		} else
 			name = MACH_PORT_NULL;
 	}
@@ -421,18 +385,6 @@ ipc_marequest_destroy(marequest)
 
 	imar_free(marequest);
 
-#if	MACH_IPC_COMPAT
-	if (soright == IP_NULL) {
-		if (IP_VALID(sright)) {
-			assert(name != MACH_PORT_NULL);
-			ipc_notify_msg_accepted_compat(sright, name);
-		}
-
-		return;
-	}
-	assert(sright == IP_NULL);
-#endif	/* MACH_IPC_COMPAT */
-
 	assert(soright != IP_NULL);
 	ipc_notify_msg_accepted(soright, name);
 }
@@ -478,7 +430,7 @@ ipc_marequest_info(maxp, info, count)
 		info[i].hib_count = bucket_count;
 	}
 
-	*maxp = ipc_marequest_max;
+	*maxp = (unsigned int)-1;
 	return ipc_marequest_size;
 }