From: Lionel Sambuc <lionel@minix3.org>
Date: Mon, 12 May 2014 11:03:55 +0000 (+0200)
Subject: Message type for VFS_MAPDRIVER
X-Git-Tag: v3.3.0~316
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/processing.js?a=commitdiff_plain;h=feb9b541da0cda5618718bacababde6259a73a73;p=minix.git

Message type for VFS_MAPDRIVER

Change-Id: I979a8769b72cd06efbedf0c6735ac3cd0c4dd2e3
---

diff --git a/include/minix/callnr.h b/include/minix/callnr.h
index 3af6514e5..4fe328bf7 100644
--- a/include/minix/callnr.h
+++ b/include/minix/callnr.h
@@ -232,11 +232,6 @@
 
 #define NR_VFS_CALLS		49	/* highest number from base plus one */
 
-/* Field names for the mapdriver(2) call. */
-#define VFS_MAPDRIVER_MAJOR	m1_i1	/* devmajor_t */
-#define VFS_MAPDRIVER_LABELLEN	m1_i2	/* size_t */
-#define VFS_MAPDRIVER_LABEL	m1_p1	/* char * */
-
 /* Field names for the fsync(2) call. */
 #define VFS_FSYNC_FD		m1_i1	/* int */
 
diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index e97e06889..f25dcd944 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -229,6 +229,15 @@ typedef struct {
 } mess_lsys_vfs_copyfd;
 _ASSERT_MSG_SIZE(mess_lsys_vfs_copyfd);
 
+typedef struct {
+	devmajor_t major;
+	size_t labellen;
+	vir_bytes label;
+
+	uint8_t padding[44];
+} mess_lsys_vfs_mapdriver;
+_ASSERT_MSG_SIZE(mess_lsys_vfs_mapdriver);
+
 typedef struct {
 	dev_t device;
 	off_t seek_pos;
@@ -689,6 +698,7 @@ typedef struct {
 
 		mess_lsys_vfs_checkperms m_lsys_vfs_checkperms;
 		mess_lsys_vfs_copyfd	m_lsys_vfs_copyfd;
+		mess_lsys_vfs_mapdriver	m_lsys_vfs_mapdriver;
 
 		mess_vfs_fs_breadwrite	m_vfs_fs_breadwrite;
 		mess_vfs_fs_chmod	m_vfs_fs_chmod;
diff --git a/lib/libsys/mapdriver.c b/lib/libsys/mapdriver.c
index e86756088..f72e511a4 100644
--- a/lib/libsys/mapdriver.c
+++ b/lib/libsys/mapdriver.c
@@ -9,9 +9,9 @@ mapdriver(char *label, devmajor_t major)
 	message m;
 
 	memset(&m, 0, sizeof(m));
-	m.VFS_MAPDRIVER_LABEL = label;
-	m.VFS_MAPDRIVER_LABELLEN = strlen(label) + 1;
-	m.VFS_MAPDRIVER_MAJOR = major;
+	m.m_lsys_vfs_mapdriver.label = (vir_bytes)label;
+	m.m_lsys_vfs_mapdriver.labellen = strlen(label) + 1;
+	m.m_lsys_vfs_mapdriver.major = major;
 
 	return _taskcall(VFS_PROC_NR, VFS_MAPDRIVER, &m);
 }
diff --git a/servers/vfs/dmap.c b/servers/vfs/dmap.c
index b4cbe131a..d9b3cfea1 100644
--- a/servers/vfs/dmap.c
+++ b/servers/vfs/dmap.c
@@ -120,9 +120,9 @@ int do_mapdriver(void)
   /* Only RS can map drivers. */
   if (who_e != RS_PROC_NR) return(EPERM);
 
-  label_vir = (vir_bytes) job_m_in.VFS_MAPDRIVER_LABEL;
-  label_len = (size_t) job_m_in.VFS_MAPDRIVER_LABELLEN;
-  major = job_m_in.VFS_MAPDRIVER_MAJOR;
+  label_vir = job_m_in.m_lsys_vfs_mapdriver.label;
+  label_len = job_m_in.m_lsys_vfs_mapdriver.labellen;
+  major = job_m_in.m_lsys_vfs_mapdriver.major;
 
   /* Get the label */
   if (label_len > sizeof(label)) { /* Can we store this label? */