Iraq PM in Pitched Battle with General Petraeus?

This has become a soap opera. Who is the ally, and who is the friend? Does anybody know:

Steven R. Hurst and Qassim Abdul-Zahra of the Associated Press get the scoop that relations between Prime Minister Nuri al-Maliki and US Gen. David Petraeus are so tense that aides to al-Maliki say he has considered asking Washington to pull the general out of Baghdad. The two major sources of tension appear to be al-Maliki's continued lack of control over all Iraqi military units and operations, and Petraeus's policy of arming Iraqi Sunni Arab tribesmen willing to fight the foreign Salafi Jihadis. Al-Maliki fears that once the Sunni tribesmen have dispatched "al-Qaeda," they will turn on the largely Shiite government with their new American weapons.

Like I said--who are our friends over in Iraq. I don't see any:

US officials say that they are upset with Saudi Arabia for undermining the government of PM Nuri al-Maliki by charging him with being an Iranian secret agent and distributing faked documents to that effect.

On the other hand, I gather that the Bush administration is not too upset with Saudi Arabia, to which it is planning to sell billions of dollars of fancy new military equipment.