Re: [PATCH] Immunize rcu_dereference() against crazy compilerwriters

[Josh Triplett]

On Wed, 2007-07-11 at 18:00 -0700, Paul E. McKenney wrote:
> Turns out that compiler writers are a bit more aggressive about optimizing
> than one might expect.  This patch prevents a number of such optimizations
> from messing up rcu_deference().  This is not merely a theoretical
> problem, as evidenced by the rmb() in mce_log().
> 
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Acked-by: Josh Triplett <josh@xxxxxxxxxx>

- Josh Triplett


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