Re: [PATCH] [Update #2] suspending I/Os to a device

[Patrick Mansfield <patmans@us.ibm.com>]

On Fri, Oct 01, 2004 at 09:54:53AM -0400, James.Smart@Emulex.Com wrote:

> +/**
> + * fc_host_block - block all scsi devices managed by the calling host temporarily 
> + *		by putting each device in the SDEV_BLOCK state.
> + * @shost:	scsi host pointer that contains all scsi device siblings.
> + *
> + * scsi lld's with a FC transport call this routine to temporarily stop all
> + * scsi commands to all devices managed by this host.  Called 
> + * from interrupt or normal process context.
> + *
> + * Returns zero if successful or error if not
> + *
> + * Notes:
> + *	The timeout and timer types are extracted from the fc transport 
> + *	attributes from the caller's host pointer.  This routine assumes no
> + *	locks are held on entry.
> + **/
> +int
> +fc_host_block(struct Scsi_Host *shost)

What is the difference between these new fc_host_block/unblock and
the current scsi_block/unblock_requests?

-- Patrick Mansfield