Re: Linux v2.4.19-rc5

From: Andrew Morton (
Date: Thu Aug 01 2002 - 04:02:13 EST

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.

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.
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This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:14 EST