From: Ben Gras <ben@minix3.org>
Date: Sat, 26 Jul 2014 11:53:46 +0000 (+0200)
Subject: custom message type for VM_GETREF
X-Git-Tag: v3.3.0~126
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/man.named-rrchecker.html?a=commitdiff_plain;h=01a50f57d82c12a9f0c3521ede2eeb9cc07dfb2a;p=minix.git

custom message type for VM_GETREF
---

diff --git a/include/minix/com.h b/include/minix/com.h
index e091a4d33..bce17cc6c 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -760,9 +760,6 @@
 #define VM_GETPHYS		(VM_RQ_BASE+35)
 
 #define VM_GETREF		(VM_RQ_BASE+36)
-#	define VMREFCNT_ENDPT		m2_i1
-#	define VMREFCNT_ADDR		m2_l1
-#	define VMREFCNT_RETC		m2_i2
 
 #define VM_RS_SET_PRIV		(VM_RQ_BASE+37)
 #	define VM_RS_NR			m2_i1
diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index 7401eb53c..a5616fc27 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -1726,6 +1726,14 @@ typedef struct {
 } mess_lc_vm_getphys;
 _ASSERT_MSG_SIZE(mess_lc_vm_getphys);
 
+typedef struct {
+	endpoint_t	endpt;
+	void		*addr;
+	int		retc;
+	uint8_t		padding[44];
+} mess_lsys_vm_getref;
+_ASSERT_MSG_SIZE(mess_lsys_vm_getref);
+
 typedef struct {
 	endpoint_t m_source;		/* who sent the message */
 	int m_type;			/* what kind of message is it */
@@ -1945,6 +1953,7 @@ typedef struct {
 		mess_vfs_lc_lseek	m_vfs_lc_lseek;
 
 		mess_lsys_vm_vmremap	m_lsys_vm_vmremap;
+		mess_lsys_vm_getref	m_lsys_vm_getref;
 		mess_lc_vm_getphys	m_lc_vm_getphys;
 		mess_lc_vm_shm_unmap	m_lc_vm_shm_unmap;
 
diff --git a/lib/libc/sys-minix/mmap.c b/lib/libc/sys-minix/mmap.c
index 334cc7782..d9edeaf36 100644
--- a/lib/libc/sys-minix/mmap.c
+++ b/lib/libc/sys-minix/mmap.c
@@ -161,12 +161,12 @@ u8_t vm_getrefcount(endpoint_t endpt, void *addr)
 	int r;
 
 	memset(&m, 0, sizeof(m));
-	m.VMREFCNT_ENDPT = endpt;
-	m.VMREFCNT_ADDR = (long) addr;
+	m.m_lsys_vm_getref.endpt = endpt;
+	m.m_lsys_vm_getref.addr  = addr;
 
 	r = _syscall(VM_PROC_NR, VM_GETREF, &m);
 	if (r != OK)
 		return (u8_t) -1;
-	return (u8_t) m.VMREFCNT_RETC;
+	return (u8_t) m.m_lsys_vm_getref.retc;
 }
 
diff --git a/servers/vm/mmap.c b/servers/vm/mmap.c
index d838df47f..c87f9e484 100644
--- a/servers/vm/mmap.c
+++ b/servers/vm/mmap.c
@@ -471,8 +471,8 @@ int do_get_refcount(message *m)
 	u8_t cnt;
 	vir_bytes addr;
 
-	target = m->VMREFCNT_ENDPT;
-	addr = m->VMREFCNT_ADDR;
+	target = m->m_lsys_vm_getref.endpt;
+	addr = (vir_bytes) m->m_lsys_vm_getref.addr;
 
 	if ((r = vm_isokendpt(target, &n)) != OK)
 		return EINVAL;
@@ -481,7 +481,7 @@ int do_get_refcount(message *m)
 
 	r = map_get_ref(vmp, addr, &cnt);
 
-	m->VMREFCNT_RETC = cnt;
+	m->m_lsys_vm_getref.retc = cnt;
 	return r;
 }