Re: [PATCH/RFC 1/7] New mount option for volatile filehandle recovery

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Trond Myklebust [Trond.Myklebust@xxxxxxxxxx] wrote:
> On Fri, 2011-11-11 at 18:04 -0500, Matthew Treinish wrote: 
> > The new 'vfhretry' mount option will be used to enable the volatile filehandle
> > recovery routines in the client. On an expired filehandle recover the client
> > will attempt to recover by performing a lookup on the name of the file.
> > 
> > This mechanism of recovery isn't necessarily safe for a posix filesystem so
> > using the mount option will allow the user to enable this at their own risk. If the mount option is not turned on, the FHEXPIRED error will be converted to
> > ESTALE.
> 
> Either we handle NFS4ERR_FHEXPIRED, or we don't... What is the
> justification for wanting to turn this off on a per-mount basis?

VFH should work with read-only file systems. Is there a way to find if
the exported file system is read-only? If there is, Matt should use that
instead of using this mount option.

--Malahal.

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