lib/device/dev-md.c

33 static int _dev_has_md_magic(struct device *dev, uint64_t sb_offset)
38 	if (dev_read(dev, sb_offset, sizeof(uint32_t), &md_magic) &&
64 	uint64_t uninitialized_var(sb_offset);
68 		sb_offset = (size - 8 * 2) & ~(4 * 2 - 1ULL);
71 		sb_offset = 0;
74 		sb_offset = 4 * 2;
77 	sb_offset <<= SECTOR_SHIFT;
79 	return sb_offset;
89 	uint64_t size, sb_offset;
106 	sb_offset = MD_NEW_SIZE_SECTORS(size) << SECTOR_SHIFT;
107 	if (_dev_has_md_magic(dev, sb_offset))
113 		sb_offset = _v1_sb_offset(size, minor);
114 		if (_dev_has_md_magic(dev, sb_offset))
125 		*sb = sb_offset;