http://lwn.net/Articles/283161/
Barriers
What minimal semantics to Filesystem developers actually want?
What can hardware really provide?
What how can layered mutli-disk devices (md, dm, loop) mediate these?
What interface semantics can we come up with that are sufficiently
general and powerful that everyone will actually implement them
correctly?
However I won't be coming this year, so I won't be able to participate
directly in such a discussion.
NeilBrown
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