commit 2afc9166 upstream.
Introduce these two functions and export them such that the next patch
can add calls to these functions from the SCSI core.
Signed-off-by: Bart Van Assche <firstname.lastname@example.org>
Acked-by: Tejun Heo <email@example.com>
Acked-by: Greg Kroah-Hartman <firstname.lastname@example.org>
Signed-off-by: Martin K. Petersen <email@example.com>
Signed-off-by: Greg Kroah-Hartman <firstname.lastname@example.org>