1122 extern int  drbd_md_read(struct drbd_device *device, struct drbd_backing_dev *bdev);
1473 extern void drbd_reconsider_max_bio_size(struct drbd_device *device, struct drbd_backing_dev *bdev);
1497 		struct drbd_backing_dev *bdev, sector_t sector, int rw);
1500 		struct drbd_backing_dev *bdev, unsigned int *done);
1616 void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backing_dev *bdev,
1813 static inline sector_t drbd_md_first_sector(struct drbd_backing_dev *bdev)  in drbd_md_first_sector()  argument
1815 	switch (bdev->md.meta_dev_idx) {  in drbd_md_first_sector()
1818 		return bdev->md.md_offset + bdev->md.bm_offset;  in drbd_md_first_sector()
1821 		return bdev->md.md_offset;  in drbd_md_first_sector()
1829 static inline sector_t drbd_md_last_sector(struct drbd_backing_dev *bdev)  in drbd_md_last_sector()  argument
1831 	switch (bdev->md.meta_dev_idx) {  in drbd_md_last_sector()
1834 		return bdev->md.md_offset + MD_4kB_SECT -1;  in drbd_md_last_sector()
1837 		return bdev->md.md_offset + bdev->md.md_size_sect -1;  in drbd_md_last_sector()
1842 static inline sector_t drbd_get_capacity(struct block_device *bdev)  in drbd_get_capacity()  argument
1845 	return bdev ? i_size_read(bdev->bd_inode) >> 9 : 0;  in drbd_get_capacity()
1856 static inline sector_t drbd_get_max_capacity(struct drbd_backing_dev *bdev)  in drbd_get_max_capacity()  argument
1860 	switch (bdev->md.meta_dev_idx) {  in drbd_get_max_capacity()
1863 		s = drbd_get_capacity(bdev->backing_bdev)  in drbd_get_max_capacity()
1865 				drbd_md_first_sector(bdev))  in drbd_get_max_capacity()
1870 				drbd_get_capacity(bdev->backing_bdev));  in drbd_get_max_capacity()
1873 			BM_EXT_TO_SECT(bdev->md.md_size_sect  in drbd_get_max_capacity()
1874 				     - bdev->md.bm_offset));  in drbd_get_max_capacity()
1878 				drbd_get_capacity(bdev->backing_bdev));  in drbd_get_max_capacity()
1887 static inline sector_t drbd_md_ss(struct drbd_backing_dev *bdev)  in drbd_md_ss()  argument
1889 	const int meta_dev_idx = bdev->md.meta_dev_idx;  in drbd_md_ss()
1898 		return (drbd_get_capacity(bdev->backing_bdev) & ~7ULL) - 8;  in drbd_md_ss()
1901 	return MD_128MB_SECT * bdev->md.meta_dev_idx;  in drbd_md_ss()