Re: [PATCH] don't invalidate non-directory mountpoints

[Miklos Szeredi]

> > d_invalidate allowed a non-directory mountpoint to be invalidated,
> > which is bad, since the mountpoint becomes unreachable.
> > 
> > I know it's racy wrt attaching/detaching mount, but AFAICS so is
> > everything else that unhashes the dentry.  This seems to be an
> > oversight when splitting out vfsmount_lock from dcache_lock.  To be
> > fixed.
> 
> NAK.  That's a wrong way to deal with the problem and it's much older
> than vfsmount_lock or dcache_lock (and affects directories too).

Sorry?

Directories are not invalidated if they have any other reference (like
a mount, or any subdirectories which may have mounts).

So how does it affect directories?

Miklos

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