2008-09-18 08:47:43

by Andrew Morton

[permalink] [raw]
Subject: Re: [RFC][Resend] Make NFS-Client readahead tunable

On Thu, 18 Sep 2008 01:38:57 -0700 (PDT) Martin Knoblauch <[email protected]> wrote:

> > No. mount(8) will pass unrecognised options straight down into the
> > filesystem driver.
> >
>
> Has that always been the case, or is it a recent change? I have to support RHEL4 userland, which is not really new.

It's been that way for ever and ever. It's how all these guys:

y:/usr/src/25> grep Opt_ fs/*/super.c|wc
781 2626 33703

get handled.


2008-09-18 08:57:11

by Greg Banks

[permalink] [raw]
Subject: Re: [RFC][Resend] Make NFS-Client readahead tunable

Andrew Morton wrote:
> On Thu, 18 Sep 2008 01:38:57 -0700 (PDT) Martin Knoblauch <[email protected]> wrote:
>
>
>>> No. mount(8) will pass unrecognised options straight down into the
>>> filesystem driver.
>>>
>>>
>> Has that always been the case, or is it a recent change? I have to support RHEL4 userland, which is not really new.
>>
>
> It's been that way for ever and ever. It's how all these guys:
>
> y:/usr/src/25> grep Opt_ fs/*/super.c|wc
> 781 2626 33703
>
> get handled.
>
NFS was...special...for a long time.

--
Greg Banks, P.Engineer, SGI Australian Software Group.
Be like the squirrel.
I don't speak for SGI.