g_access questions (Out on a limb here)

[Shane Adams]

Hello,

I have a question regarding g_access.  I'm mounting a custom filesytem twice against the same device.  The first time I'm mounting it with read/write access, I then mount the same device to a different mount point.  After I do this, the first mount starts getting write errors, so somehow the second mount is screwing up access rights to the device.  For what its worth, I'm mounting a ram backed mdconfig device.

I'm not sure if this is a geom related issue, or related to the fact that you cannot mount a device more than twice in vfs?

Anyway - the first time I mount (R/W) I do:

g_access(cp, 1,1, 0)

I then mount the device again as read only to a different mount point with 

g_access(cp,1,0,0)

The code I used is taken from g_vfs_open with wr flag set depending if write access is required:

   pp = g_dev_getprovider(vp->v_rdev);
        if (pp == NULL)
                return (ENOENT);
        gp = g_new_geomf(&g_vfs_class2, "%s.%s", fsname, pp->name);
        cp = g_new_consumer(gp);
        g_attach(cp, pp);
        error = g_access(cp, 1, wr, 0);
        if (error) {
                g_wither_geom(gp, ENXIO);
                return (error);
        }

Cheers,
  Shane




 
____________________________________________________________________________________
Want to start your own business?
Learn how on Yahoo! Small Business.
http://smallbusiness.yahoo.com/r-index