Re: namespace question

[Al Viro]

On Thu, Jun 23, 2005 at 02:31:02PM -0400, cspalletta@xxxxxxxxxxxx wrote:
> > > Running a kernel module using dpath iteratively on the mnt_mountpoint member ... I get a curious doubling of the mount point names:
> 
> >> proc /proc/proc proc
> >> sysfs /sys/sys sysfs
> >>  devpts /dev/pts/dev/pts devpts
> >>  tmpfs /dev/shm/dev/shm tmpfs
> >> /dev/hda1 /boot/boot ext2
> >> usbfs /proc/bus/usb/bus/usb usbfs
> 
> >  Using the same algorithm with mnt_root produces correct results.  
> 
> > >                 dentry = dget(vfsmnt_ptr->mnt_mountpoint);
> > 
> > should be:
> > 
> > dentry = dget(vfsmnt_ptr->mnt_root);
> 
> Yes I pointed that out above - what I want to know is why the doubling of the names for mnt_mntpoint.  It must be used for something, I suppose.

You are passing d_path() inconsistent arguments and get BS result.
Garbage in, garbage out...
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