Re: [patch] fs: improved handling of page and buffer IO errors

[Andi Kleen <andi@firstfloor.org>]

Nick Piggin <npiggin@suse.de> writes:

> IO error handling in the core mm/fs still doesn't seem perfect, but with
> the recent round of patches and this one, it should be getting on the
> right track.
>
> I kind of get the feeling some people would rather forget about all this
> and brush it under the carpet. Hopefully I'm mistaken, but if anybody
> disagrees with my assertion that error handling, and data integrity
> semantics are first-class correctness issues, and therefore are more
> important than all other non-correctness problems... speak now and let's
> discuss that, please.
>
> Otherwise, unless anybody sees obvious problems with this, hopefully it
> can go into -mm for some wider testing (I've tested it with a few filesystems
> so far and no immediate problems)

I think the first step to get these more robust in the future would be to
have a standard regression test testing these paths.  Otherwise it'll
bit-rot sooner or later again.

-Andi

-- 
ak@linux.intel.com