Re: [PATCH 0/2] vfs: ensure that dentries are revalidated on open(try #2)

[Miklos Szeredi]

On Wed, 11 Nov 2009, Trond Myklebust wrote:
> > Having said that, doing revalidation for proc symlinks and bind mounts
> > (and not just for opens) might make sense.  This is something similar
> > to FS_REVAL_DOT, so perhaps make it conditional on this flag (or a
> > new, appropriately named one).
> 
> Aren't both proc symlinks and bind mounts pretty much guaranteed to
> point to a valid dentry?

It could for example happen that client bind mounts a regular file,
then the file is unlinked on the server.  Then the bind mounted dentry
is no longer valid.

Thanks,
Miklos
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