On 01/11/2015 02:50 PM, Akinobu Mita wrote: > While accessing a scsi_device, the use count of the underlying LLDD module > is incremented. The module reference is retrieved through .module field of > struct scsi_host_template. > > This mapping between scsi_device and underlying LLDD module works well > except ufs, unusual usb storage drivers, and sub drivers for esp_scsi. > These drivers consist with core driver and actual LLDDs, and > scsi_host_template is defined in the core driver. So the actual LLDDs can > be unloaded even if the scsi_device is being accessed. > > This adds .module field in struct Scsi_Host and let the module reference > be retrieved though it instead of struct scsi_host_template. This allows > the actual LLDDs adjust module reference. > > Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx> > Cc: Vinayak Holikatti <vinholikatti@xxxxxxxxx> > Cc: Dolev Raviv <draviv@xxxxxxxxxxxxxx> > Cc: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx> > Cc: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx> > Cc: Christoph Hellwig <hch@xxxxxx> > Cc: "James E.J. Bottomley" <JBottomley@xxxxxxxxxxxxx> > Cc: Matthew Dharm <mdharm-usb@xxxxxxxxxxxxxxxxxx> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Cc: linux-usb@xxxxxxxxxxxxxxx > Cc: usb-storage@xxxxxxxxxxxxxxxxxxxxxxxx > Cc: linux-scsi@xxxxxxxxxxxxxxx Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
