[PATCH 0/3] kref: inline and barriers

[Peter Zijlstra]

>From time to time people on #kernelnewbies ask what the difference is between
kref and using atomic_t yourself. And I keep having to tell them that kref is
the slow and weird option.

These patches try and cure some of that, it inlines all functions and removes
the superfluous memory barriers that are there for no good reason at all.

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