189 /* Compare two getfsmap device handlers. */
900 	struct xfs_getfsmap_dev		handlers[XFS_GETFSMAP_DEVS];  in xfs_getfsmap()  local
918 	/* Set up our device handlers. */  in xfs_getfsmap()
919 	memset(handlers, 0, sizeof(handlers));  in xfs_getfsmap()
920 	handlers[0].nr_sectors = XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks);  in xfs_getfsmap()
921 	handlers[0].dev = new_encode_dev(mp->m_ddev_targp->bt_dev);  in xfs_getfsmap()
923 		handlers[0].fn = xfs_getfsmap_datadev_rmapbt;  in xfs_getfsmap()
925 		handlers[0].fn = xfs_getfsmap_datadev_bnobt;  in xfs_getfsmap()
927 		handlers[1].nr_sectors = XFS_FSB_TO_BB(mp,  in xfs_getfsmap()
929 		handlers[1].dev = new_encode_dev(mp->m_logdev_targp->bt_dev);  in xfs_getfsmap()
930 		handlers[1].fn = xfs_getfsmap_logdev;  in xfs_getfsmap()
934 		handlers[2].nr_sectors = XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks);  in xfs_getfsmap()
935 		handlers[2].dev = new_encode_dev(mp->m_rtdev_targp->bt_dev);  in xfs_getfsmap()
936 		handlers[2].fn = xfs_getfsmap_rtdev_rtbitmap;  in xfs_getfsmap()
940 	xfs_sort(handlers, XFS_GETFSMAP_DEVS, sizeof(struct xfs_getfsmap_dev),  in xfs_getfsmap()
973 		if (!handlers[i].fn)  in xfs_getfsmap()
975 		if (head->fmh_keys[0].fmr_device > handlers[i].dev)  in xfs_getfsmap()
977 		if (head->fmh_keys[1].fmr_device < handlers[i].dev)  in xfs_getfsmap()
987 		if (handlers[i].dev == head->fmh_keys[1].fmr_device) {  in xfs_getfsmap()
989 			info.end_daddr = min(handlers[i].nr_sectors - 1,  in xfs_getfsmap()
992 		if (handlers[i].dev > head->fmh_keys[0].fmr_device)  in xfs_getfsmap()
1004 		info.dev = handlers[i].dev;  in xfs_getfsmap()
1009 		error = handlers[i].fn(tp, dkeys, &info);  in xfs_getfsmap()