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I wanted to understand the limitations (if any) I would have inside the context of a call to ExAcquireResourceExclusiveLite(). Namely the documentation suggests the code inside of this should either enter a Critical Region to disable all Kernel APCs.
What I'm failing to understand is what limitations does this impose on the function running within this 'Mutex'. So lets say I am executing callback functions like:
if ExAcquireResourceExclusiveLite then CallFunc() ExReleaseResourceLite()
KeEnterCriticalRegion is called before the acqusition is made (or not?). Is there anything specific that I need to know about the limitations imposed on
CallFunc() , besides the fact it can't Queue any APCs, can it hold a Lock? Is IRQL important or relevant here?
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