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

[Al Viro]

On Fri, Oct 07, 2005 at 01:13:50PM +0200, Miklos Szeredi wrote:
> 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).
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