SB_SECTORS
io_loc.sector = ic->start + SB_SECTORS + sector;
bio->bi_iter.bi_sector += ic->start + SB_SECTORS;
outgoing_bio->bi_iter.bi_sector = dio->bio_details.bi_iter.bi_sector + ic->start + SB_SECTORS;
bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
bio->bi_iter.bi_sector = ic->start + SB_SECTORS + range.logical_sector;
DMEMIT(" journal_sectors:%u", ic->initial_sectors - SB_SECTORS);
DMEMIT(",journal_sectors=%u", ic->initial_sectors - SB_SECTORS);
initial_sectors = SB_SECTORS + (__u64)ic->journal_section_sectors * ic->journal_sections;
memset(ic->sb, 0, SB_SECTORS << SECTOR_SHIFT);
ic->sb = alloc_pages_exact(SB_SECTORS << SECTOR_SHIFT, GFP_KERNEL);
if (memchr_inv(ic->sb, 0, SB_SECTORS << SECTOR_SHIFT)) {
free_pages_exact(ic->sb, SB_SECTORS << SECTOR_SHIFT);
io_loc.count = SB_SECTORS;