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SubjectRe: [PATCH 4/5] lock_cpu_hotplug: Redesign - Lightweight implementation of lock_cpu_hotplug.
Gautham wrote:
+ *- Readers assume control iff: *
+ * a) No other reader has a reference and no writer is writing. *
+ * OR *
+ * b) Atleast one reader (on *any* cpu) has a reference. *

Isn't this logically equivalent to stating:

*- Readers assume control iff no writer is writing

(Or if it's not equivalent, it might be interesting to state why.)

I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <> 1.925.600.0401
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