From 302707fd7cd341a23dbc448a335d432ad0069c20 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 31 Aug 2015 20:21:59 -0700 Subject: locking/percpu-rwsem: Export symbols for locktorture This commit exports percpu_down_read(), percpu_down_write(), __percpu_init_rwsem(), percpu_up_read(), and percpu_up_write() to allow locktorture to test them when built as a module. Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- kernel/locking/percpu-rwsem.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'kernel/locking') diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c index f32567254867..e2621fbbcbd1 100644 --- a/kernel/locking/percpu-rwsem.c +++ b/kernel/locking/percpu-rwsem.c @@ -22,6 +22,7 @@ int __percpu_init_rwsem(struct percpu_rw_semaphore *brw, init_waitqueue_head(&brw->write_waitq); return 0; } +EXPORT_SYMBOL_GPL(__percpu_init_rwsem); void percpu_free_rwsem(struct percpu_rw_semaphore *brw) { @@ -87,6 +88,7 @@ void percpu_down_read(struct percpu_rw_semaphore *brw) /* avoid up_read()->rwsem_release() */ __up_read(&brw->rw_sem); } +EXPORT_SYMBOL_GPL(percpu_down_read); int percpu_down_read_trylock(struct percpu_rw_semaphore *brw) { @@ -112,6 +114,7 @@ void percpu_up_read(struct percpu_rw_semaphore *brw) if (atomic_dec_and_test(&brw->slow_read_ctr)) wake_up_all(&brw->write_waitq); } +EXPORT_SYMBOL_GPL(percpu_up_read); static int clear_fast_ctr(struct percpu_rw_semaphore *brw) { @@ -163,6 +166,7 @@ void percpu_down_write(struct percpu_rw_semaphore *brw) /* wait for all readers to complete their percpu_up_read() */ wait_event(brw->write_waitq, !atomic_read(&brw->slow_read_ctr)); } +EXPORT_SYMBOL_GPL(percpu_down_write); void percpu_up_write(struct percpu_rw_semaphore *brw) { @@ -176,3 +180,4 @@ void percpu_up_write(struct percpu_rw_semaphore *brw) /* the last writer unblocks update_fast_ctr() */ atomic_dec(&brw->write_ctr); } +EXPORT_SYMBOL_GPL(percpu_up_write); -- cgit v1.2.3