Re: [PATCH v2 tip/core/rcu 0/13] Sparse-related updates for 3.13

[Josh Triplett]

On Wed, Oct 09, 2013 at 02:29:20PM -0700, Paul E. McKenney wrote:
> Hello!
> 
> This series features updates to allow sparse to do a better job of
> statically analyzing RCU usage:
> 
> 1.	Apply ACCESS_ONCE() to rcu_assign_pointer()'s target to prevent
> 	comiler mischief.  Also require that the source pointer be from
> 	the kernel address space.  Sometimes it can be from the RCU address
> 	space, which necessitates the remaining patches in this series.
> 	Which, it must be admitted, apply to a very small fraction of
> 	the rcu_assign_pointer() invocations in the kernel.  This commit
> 	courtesy of Josh Triplett.
> 
> 2-13.	Apply rcu_access_pointer() to avoid a number of false positives.

I would suggest moving patch 1 to the end of the series, to avoid
introducing and subsequently fixing warnings.

- Josh Triplett
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