diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2013-09-08 11:51:06 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2013-09-25 06:44:56 -0700 |
| commit | f9ffc31ebd38d2d74dbfe9f0b67274e99ad668f5 (patch) | |
| tree | eb6d7441e41646201b767cfc638afa18c59c81c5 | |
| parent | cc6783f788d8fe8b23ec6fc2762f5e8c9a418eee (diff) | |
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>
| -rw-r--r-- | kernel/rcutree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 910d868808dc..1b123e179d71 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -669,7 +669,7 @@ int rcu_is_cpu_idle(void) preempt_enable(); return ret; } -EXPORT_SYMBOL(rcu_is_cpu_idle); +EXPORT_SYMBOL_GPL(rcu_is_cpu_idle); /** * __rcu_is_watching - are RCU read-side critical sections safe? |