On Tue, Jan 25 2000, Alan Cox wrote:
> > max_segments which, again, is a per-major kind of thing. Has anyone
> > experimented with setting this higher? The DAC960 is currently
> > the only driver manipulating it. The default value is indeed 128
> > sectors, or 64KB.
>
> We can't. its per major. But the scsi layer does its own request merging
> too (clustering code).
Sure, but as I see it the scsi layer will never attempt to cluster
requests larger than what the ll_rw_block currently permits (without
help).
I do like the idea of having devices control their own merging,
it allows for greater flexibility. But current 2.3 is just not
very clear on what is handled by ll_rw_block and what the devices
do themselves.
--
* Jens Axboe <[EMAIL PROTECTED]>
* Linux CD-ROM Maintainer
* http://www.kernel.dk
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