• Jens Axboe's avatar
    [PATCH] misc scsi bits · 54952b34
    Jens Axboe authored
    Various small bits that make SCSI work well with REQ_BLOCK_PC.
    
    o Use ->errors as the scsi status byte for REQ_BLOCK_PC
    
    o Always call end_io completion, even if 0 sectors, as long as the
      status is good. Otherwise we risk hanging this device if a
      REQ_BLOCK_PC user command didn't specify a transfer size for a command
      that did.
    
    o Remove bouncing checks in scsi_merge for REQ_BLOCK_PC, bio_map_user()
      correctly bounces pages now.
    
    o Decrement req->data_len, it's our residual data count.
    
    o sr/sd: set right transfer and underflow size.
    54952b34
sr.c 22.3 KB