Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

/* SPDX-License-Identifier: GPL-2.0 */

#include <uapi/linux/genetlink.h>

/* All generic netlink requests are serialized by a global lock.  */
extern void genl_lock(void);
extern void genl_unlock(void);
extern bool lockdep_genl_is_held(void);

/* for synchronisation between af_netlink and genetlink */
extern atomic_t genl_sk_destructing_cnt;
extern wait_queue_head_t genl_sk_destructing_waitq;

 * rcu_dereference_genl - 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 genl mutex. Note : Please prefer genl_dereference() or rcu_dereference()
#define rcu_dereference_genl(p)					\
	rcu_dereference_check(p, lockdep_genl_is_held())

 * genl_dereference - fetch RCU pointer when updates are prevented by genl mutex
 * @p: The pointer to read, prior to dereferencing
 * Return the value of the specified RCU-protected pointer, but omit
 * the READ_ONCE(), because caller holds genl mutex.
#define genl_dereference(p)					\
	rcu_dereference_protected(p, lockdep_genl_is_held())