suse man page for blk_integrity_compare

BLK_INTEGRITY_COMPAR(9) 					   Block Devices					   BLK_INTEGRITY_COMPAR(9)

NAME
       blk_integrity_compare - Compare integrity profile of two disks

SYNOPSIS
       int blk_integrity_compare(struct gendisk * gd1, struct gendisk * gd2);

ARGUMENTS
       gd1
	   Disk to compare

       gd2
	   Disk to compare

DESCRIPTION
       Meta-devices like DM and MD need to verify that all sub-devices use the same integrity format before advertising to upper layers that they
       can send/receive integrity metadata. This function can be used to check whether two gendisk devices have compatible integrity formats.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   BLK_INTEGRITY_COMPAR(9)