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A simple comparison of a pointer returned by rcu_access_pointer() results in a context-analysis warning for lockless inspection of the RCU-protected (also known as __rcu-protected) pointer. This can be suppressed by placing context_unsafe() calls around calls rcu_access_pointer(), but this is messy and distracting. This commit therefore wraps the underlying __rcu_access_pointer() macro with a call to context_unsafe(), thereby informing the context-analysis code that rcu_access_pointer() may safely be invoked outside of an RCU read-side critical section. Reported-by: Christoph Hellwig <hch@lst.de> Suggested-by: Marco Elver <elver@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Tested-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Marco Elver <elver@google.com> |
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