Comment 14 for bug 1156138

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Stephen Parry (sgparry) wrote :

Dug deeper, got more answers, but also more questions: rcupdate.h is heavily conditional on PREEMPT causing __rcu_read_lock/unlock to be extern rather than inline.
However, this leaves the most fundamental question of all: why are some functions OK to call from non-GPL code but others not? should these functions be marked as OK to call?