Re: [PATCH 03/13] scsi: unify allocation of scsi command and sensebuffer

From: Christoph Hellwig
Date: Mon May 25 2009 - 06:42:33 EST

On Mon, May 25, 2009 at 01:33:42PM +0300, Boaz Harrosh wrote:
> 1. If we have a machine with few type of hosts active each with it's own
> cmnd_slab we end up with many more slabs then today. Even though at the
> end they all happen to be of the same size. (With the pool reserves it
> can get big also).

Note that this should be optional. Device not having their own
per-command structure would continue using the global pools. Those
that have their own per-command structures already have their own pools

> Hosts specify an size_of_private_command at host template, which might include
> the common-scsi_cmnd + sense_buffer + private_cmnd + optional scsi_ptr +
> bidi_data_buffer + ...

That sounds fine, too.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at