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| author |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-05-13 10:14:51 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-07-08 08:13:03 -0700 |
| commit | 5726ce06ad6bcd8dd75a204d1465c99a2f897d3a (patch) | |
| tree | c3240a49d769fc49f0fee614f63c897ddce87f3b /Documentation/RCU | |
| parent | rcu: Reduce overhead of cond_resched() checks for RCU (diff) | |
| download | linux-dev-5726ce06ad6bcd8dd75a204d1465c99a2f897d3a.tar.xz linux-dev-5726ce06ad6bcd8dd75a204d1465c99a2f897d3a.zip | |
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>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'Documentation/RCU')
0 files changed, 0 insertions, 0 deletions