rcu: Mark __rcu_access_pointer() as context_unsafe()

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>

0 files changed, 0 insertions, 0 deletions