[Libsysio-commit] HEAD: libsysio/src mount.c

[Lee W. <lw...@us...>]

Update of /cvsroot/libsysio/libsysio/src
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv10952/src

Modified Files:
	mount.c 
Log Message:


All the drivers, in their mount routines, do something like:

	rootpb = _sysio_pb_new(&noname, NULL, rootino);
	err = _sysio_do_mount(..., rootpb, ...);

This is clumsy. Crafted a convenience function called _sysio_mounti to
do this for them. This simplifies the whole process a bit. Don't have to
clean up the root pb node on error, for instance.

The function is called exactly like _sysio_do_mount but with a ptr
to the root inode instead of a ptr to the root pb node.


Index: mount.c
===================================================================
RCS file: /cvsroot/libsysio/libsysio/src/mount.c,v
retrieving revision 1.25
retrieving revision 1.26
diff -u -w -b -B -p -r1.25 -r1.26
--- mount.c	21 Sep 2007 19:41:37 -0000	1.25
+++ mount.c	24 Sep 2007 19:00:03 -0000	1.26
@@ -200,6 +200,29 @@ error:
 }
 
 /*
+ * Mount unrooted sub-tree somewhere in the existing name space.
+ */
+int
+_sysio_mounti(struct filesys *fs,
+	      struct inode *rootino,
+	      unsigned flags,
+	      struct pnode *tocover,
+	      struct mount **mntp)
+{
+	static struct qstr noname = { NULL, 0, 0 };
+	struct pnode_base *rootpb;
+	int	err;
+
+	rootpb = _sysio_pb_new(&noname, NULL, rootino);
+	if (!rootpb)
+		return -ENOMEM;
+	err = _sysio_do_mount(fs, rootpb, flags, tocover, mntp);
+	if (err)
+		_sysio_pb_gone(rootpb);
+	return err;
+}
+
+/*
  * Remove mounted sub-tree from the system.
  */
 int