diff options
| author | Joel Fernandes (Google) <joel@joelfernandes.org> | 2019-07-16 18:12:25 -0400 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2019-08-13 14:28:47 -0700 |
| commit | c2fa1e1bfa5b74558854a70b8afd797d43eb2743 (patch) | |
| tree | 52c73a3ef018a42c30ea26c7ad9326d55d060fdb /drivers/base/core.c | |
| parent | 7fd69b0ba48a2b2d8e5b4f0945b28d3839a7705a (diff) | |
| download | lwn-c2fa1e1bfa5b74558854a70b8afd797d43eb2743.tar.gz lwn-c2fa1e1bfa5b74558854a70b8afd797d43eb2743.zip | |
driver/core: Convert to use built-in RCU list checking
This commit applies the consolidated hlist_for_each_entry_rcu() support
for lockdep conditions.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 636058bbf48a..eede79630ceb 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -68,6 +68,11 @@ void device_links_read_unlock(int idx) { srcu_read_unlock(&device_links_srcu, idx); } + +int device_links_read_lock_held(void) +{ + return srcu_read_lock_held(&device_links_srcu); +} #else /* !CONFIG_SRCU */ static DECLARE_RWSEM(device_links_lock); @@ -91,6 +96,13 @@ void device_links_read_unlock(int not_used) { up_read(&device_links_lock); } + +#ifdef CONFIG_DEBUG_LOCK_ALLOC +int device_links_read_lock_held(void) +{ + return lockdep_is_held(&device_links_lock); +} +#endif #endif /* !CONFIG_SRCU */ /** |