set_wmb(var, value) is not used anywhere in the kernel. And it doesn't
do anything special but shorten the typing of:
var = value;
wmb();
Which the above is much more readable, and thus set_wmb is just
something to confuse developers even more.
So this patch series removes set_wmb from the kernel. It's not
currently used in the kernel, and any out-of-kernel branch can easily
replace it. So there should be no harm in removing it.
The first patch removes it from Documentation/memory-barriers.txt and
the second patch does a sweep through all the architectures to get rid
of it. All archs do the above code except ia64 and sparc which do a
mb() instead. But regardless, it's still not used.
-- Steve
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