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documentation: Clarify wake-up/memory-barrier relationship
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 13 May 2014 17:14:51 +0000 (10:14 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Thu, 26 Jun 2014 17:59:36 +0000 (10:59 -0700)
commit5f36afa64035fb83db0a2dc5196396fb5c107b2b
tree9e5bea9b9a42bc4159903e4264e092de5d47bfe8tree | snapshot
parent4ca2b785c27b8e91a2cf2273816346273f9ea478commit | diff
documentation: Clarify wake-up/memory-barrier relationship

This commit adds an example demonstrating that if a wake_up() doesn't
actually wake something up, no memory ordering is provided.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Documentation/memory-barriers.txt diff | blob | history
Linux kernel for KaRo TX COM modules