Re: 2.5.50: floppy/buffer related oops

[Andrew Morton]

CaT wrote:
> 
> I was dding to a floppy disc that had errors on it.
> ...
> buffer layer error at fs/buffer.c:2641
> Pass this trace through ksymoops for reporting
> Call Trace:
>  [<c0143c03>] __buffer_error+0x33/0x38

That's not an oops.  It's a debug warning.

You had non-uptodate buffers against an uptodate page.  This
is an absurdity, but is not harmful.

Clearing BH_Uptodate on a write error has always seemed weird.
The error handling needs a review/rethink.  Meanwhile I'll drop
a buffer_req test into those warnings to shut them up.