tree eb6d7441e41646201b767cfc638afa18c59c81c5
parent cc6783f788d8fe8b23ec6fc2762f5e8c9a418eee
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1378666266 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1380116696 -0700

rcu: Change EXPORT_SYMBOL() to EXPORT_SYMBOL_GPL()

Commit e6b80a3b (rcu: Detect illegal rcu dereference in extended
quiescent state) exported the pre-existing rcu_is_cpu_idle() function
using EXPORT_SYMBOL().  However, this is inconsistent with the remaining
exports from RCU, which are all EXPORT_SYMBOL_GPL().  The current state
of affairs means that a non-GPL module could use rcu_is_cpu_idle(),
but in a CONFIG_TREE_PREEMPT_RCU=y kernel would be unable to invoke
rcu_read_lock() and rcu_read_unlock().

This commit therefore makes rcu_is_cpu_idle()'s export be consistent
with the rest of RCU, namely EXPORT_SYMBOL_GPL().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>