Alan Stern wrote:
Sorry, terminology mixup. By "top-down order" I didn't mean that drivers always start by locking the root device, then one of its children, and so on. I meant that whenever two devices must be locked, the parent is locked first and the child is locked second.
So to lock the parent device, one must lock _its_ parent. Eventually one gets to root, like locktree() does! :)
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