Re: [PATCH 0/3] enhanced ESTALE error handling

[Chuck Lever]

Hi Peter-

On Jan 18, 2008, at 12:30 PM, Peter Staubach wrote:
> Chuck Lever wrote:
> > On Jan 18, 2008, at 11:55 AM, Peter Staubach wrote:
> > > Chuck Lever wrote:
> > > > Hi Peter-
> > > >
> > > > On Jan 18, 2008, at 10:35 AM, Peter Staubach wrote:
> > > and the window in between the revalidation
> > > and the actual use of the file handle associated with each
> > > dentry/inode pair.
> >
> > A use case or two would be useful to explore (on linux-nfs or  
> > linux-fsdevel, rather than lkml).
>
> I created a bunch of use cases in the gensyscall.c program that
> I attached to the original description of the problem and my
> proposed solution.  It was very useful in generating many, many
> ESTALE errors over the wire from a variety of different over the
> wire operations, which were originally getting returned to the
> user level.

The gensyscall.c program is what I would call a set of unit test, btw.

This is not the same as a use case, which would include information  
about the application environment, its users, a detailed description  
of current system behavior, and some discussion of alternatives for  
improving it (including doing nothing).

A test case is written in a programming language, a use case is  
written in a natural language.

--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
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