Re: Linux v2.4.19-rc5

[Jens Axboe]

On Thu, Aug 01 2002, Andrew Morton wrote:
> Jens Axboe wrote:
> > 
> > ...
> > > Anyway, lets wait for the numbers.
> > 
> > It just 'feels' like the sort of change that might have odd side
> > effects.
> 
> It's almost impossible to get READA to do anything.  For example, in
> current 2.5, if a READA attempt is actually aborted, end_buffer_io_sync
> reports a "buffer I/O error".  Every time. And nobody has reported this.

Ahem, I've actually seen that happen :-). But maybe a total of 20 times
or so.

> It _is_ possible to hit this in 2.5, because of ext2_preread_inode().
> 
> Probably, also it's possible to hit it in 2.4 with hundreds of processes
> all issuing ext3 directory readahead.  But it's pretty remote.

Alright, I'm happy then.

-- 
Jens Axboe