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
