lblkstart 1386 fs/f2fs/segment.c block_t lblkstart = blkstart; lblkstart 1399 fs/f2fs/segment.c __update_discard_tree_range(sbi, bdev, lblkstart, blkstart, blklen); lblkstart 1757 fs/f2fs/segment.c block_t lblkstart = blkstart; lblkstart 1787 fs/f2fs/segment.c return __queue_discard_cmd(sbi, bdev, lblkstart, blklen);