Message ID | 1283893657.2634.210.camel@edumazet-laptop |
---|---|
State | Changes Requested, archived |
Delegated to: | David Miller |
Headers | show |
On Tue, 2010-09-07 at 23:07 +0200, Eric Dumazet wrote: [...] > +/** > + * rcu_dereference_rtnl - rcu_dereference with debug checking > + * @p: The pointer to read, prior to dereferencing > + * > + * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() > + * or RTNL > + */ > +#define rcu_dereference_rtnl(p) \ > + rcu_dereference_check(p, rcu_read_lock_held() || \ > + lockdep_rtnl_is_held()); [...] No semicolon on the end, please. The 'caller' will add that. Ben.
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index 58d4449..057a08f 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -749,6 +749,17 @@ extern int rtnl_is_locked(void); extern int lockdep_rtnl_is_held(void); #endif /* #ifdef CONFIG_PROVE_LOCKING */ +/** + * rcu_dereference_rtnl - rcu_dereference with debug checking + * @p: The pointer to read, prior to dereferencing + * + * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() + * or RTNL + */ +#define rcu_dereference_rtnl(p) \ + rcu_dereference_check(p, rcu_read_lock_held() || \ + lockdep_rtnl_is_held()); + extern void rtnetlink_init(void); extern void __rtnl_unlock(void);