Re: [RFC] Implementation of SCSI dynamic power management
From: Oliver Neukum <oliver@neukum.org>
Date: 2008-01-08 14:12:55
Am Montag, 7. Januar 2008 20:42:23 schrieb Alan Stern:
/** + * autoresume - perform dynamic (runtime) host resume + * @shp: host to resume + * + * Resume (return to an operational power level) the specified host. + * Return 0 if the resume was successful, otherwise a negative + * error code. + * + * Locks: struct Scsi_Host::pm_mutex held throughout the call. + * + * Calling context: process + * + * Notes: If the host is not currently suspended, this method does + * need to do anything. + * + * Optionally defined in: LLD + **/ + int autoresume(struct Scsi_Host *shp) +
This seems to be a bit misleading. It seems to me that you must cancel any outstanding request to autosuspend from other layers. Regards Oliver