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 <[email protected]> > Cc: Vinayak Holikatti <[email protected]> > Cc: Dolev Raviv <[email protected]> > Cc: Sujit Reddy Thumma <[email protected]> > Cc: Subhash Jadavani <[email protected]> > Cc: Christoph Hellwig <[email protected]> > Cc: "James E.J. Bottomley" <[email protected]> > Cc: Matthew Dharm <[email protected]> > Cc: Greg Kroah-Hartman <[email protected]> > Cc: Alan Stern <[email protected]> > Cc: [email protected] > Cc: [email protected] > Cc: [email protected]
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