Re: reiser4 merging action list

[Andrew Morton <akpm@osdl.org>]

Hans Reiser <reiser@namesys.com> wrote:
>
> 
> Andrew asked me to put together a list of things that need to be done
> before merging:

Thanks.

As I said to Hans, if we can get a list of bullet-point actions nailed down
and agreed to then we have an uncontroversial path to happiness and a
merge.  Let's get down and concentrate on technical specifics.

Hans, please maintain this list and republish it as we work through things.

>     * VFS will dispatch directly to the method of the plugin for the
> *_operations methods.  This requires duplicating to all plugin methods
> the common code currently used by all reiser4 plugins for a given
> method.  It has the desirable side effect of making the methods more
> fully self-contained, which is somethng I had wanted two years ago and
> was a little sad to not get, and the cost of duplicating some code. 
> Since not all plugin methods are *_operations, it means we have two
> structures with duplicated data, and duplicate data that must be in sync
> at all times is classical badness in programming technique (see Codd and
> normalization).                                 vs owns this task
> 
>     * review all sparse complaints, and revise as appropriate. 
> 
>     * panic and code beauty: everyone agrees that having function, file,
> and line added to reiser4_panic output hurts nothing (I hope).  Everyone
> agrees that restarting the machine without an error message seems like a
> useless option to allow.   Much else was argued, not sure if anything
> was a consensus view.  Various detail improvements were suggested by
> Pecca, and I agreed with half of them.
> 
> 
>    * metafiles should be disabled until we can present code that works
> right.  Half the list thinks we cannot solve the cycles problem ever. 
> Disable metafiles and postpone problem until working code, or the
> failure to produce it, makes it possible to do more than rant at each
> other.  This is currently already done in the -mm patches, but is
> mentioned lest someone think it forgotten.
> 
>    * update the locking documentation
> 

There's also the custom list, hash and debug code.  We should either

a) remove them or

b) generify them and submit as standalone works or

c) justify them as custom-to-reiser4 and leave them as-is.


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