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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2006-10-11 01:45:14 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-10-11 01:45:14 -0400 |
| commit | 4dfbb9d8c6cbfc32faa5c71145bd2a43e1f8237c (patch) | |
| tree | a4fefea0d5f5930240f4ecd6f9716a029cc927a9 /lib/rwsem.c | |
| parent | 86255d9d0bede79140f4912482447963f00818c0 (diff) | |
| download | blackbird-op-linux-4dfbb9d8c6cbfc32faa5c71145bd2a43e1f8237c.tar.gz blackbird-op-linux-4dfbb9d8c6cbfc32faa5c71145bd2a43e1f8237c.zip | |
Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass()
This annotation makes it possible to assign a subclass on lock init. This
annotation is meant to reduce the _nested() annotations by assigning a
default subclass.
One could do without this annotation and rely on lockdep_set_class()
exclusively, but that would require a manual stack of struct lock_class_key
objects.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'lib/rwsem.c')
| -rw-r--r-- | lib/rwsem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rwsem.c b/lib/rwsem.c index 901d0e7da892..cdb4e3d05607 100644 --- a/lib/rwsem.c +++ b/lib/rwsem.c @@ -19,7 +19,7 @@ void __init_rwsem(struct rw_semaphore *sem, const char *name, * Make sure we are not reinitializing a held semaphore: */ debug_check_no_locks_freed((void *)sem, sizeof(*sem)); - lockdep_init_map(&sem->dep_map, name, key); + lockdep_init_map(&sem->dep_map, name, key, 0); #endif sem->count = RWSEM_UNLOCKED_VALUE; spin_lock_init(&sem->wait_lock); |
