From mboxrd@z Thu Jan  1 00:00:00 1970
From: j.glisse@gmail.com
Subject: [RFC] Convert fence to use 64bits sequence
Date: Wed,  2 May 2012 16:20:09 -0400
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So this patchset convert the fence to use 64bits sequence and simplify
the fence code (dropping fence lock). I am still convinced that the
best solution is to have the various helper code deals with fence
cleanup/processing. The last patch show an example of what can be
done to improve sa allocator taking advantage of u64 fence.

Cheers,
Jerome