ATAPI_DRAIN_NEEDED(9)             libata SCSI translation/emulat            ATAPI_DRAIN_NEEDED(9)



NAME
       atapi_drain_needed - Check whether data transfer may overflow

SYNOPSIS
       int atapi_drain_needed(struct request * rq);

ARGUMENTS
       rq
           request to be checked

DESCRIPTION
       ATAPI commands which transfer variable length data to host might overflow due to
       application error or hardware bug. This function checks whether overflow should be drained
       and ignored for request.

       LOCKING: None.

RETURN
       1 if ; otherwise, 0.

AUTHOR
       Jeff Garzik
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                     ATAPI_DRAIN_NEEDED(9)