diff options
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 22 | 
1 files changed, 14 insertions, 8 deletions
| diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index de50d8a4cf41..1a9f70d44af9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -523,7 +523,7 @@ static inline void rcu_preempt_sleep_check(void) { }   * Return the value of the specified RCU-protected pointer, but omit   * both the smp_read_barrier_depends() and the READ_ONCE().  This   * is useful in cases where update-side locks prevent the value of the - * pointer from changing.  Please note that this primitive does -not- + * pointer from changing.  Please note that this primitive does *not*   * prevent the compiler from repeating this reference or combining it   * with other references, so it should not be used without protection   * of appropriate locks. @@ -568,7 +568,7 @@ static inline void rcu_preempt_sleep_check(void) { }   * is handed off from RCU to some other synchronization mechanism, for   * example, reference counting or locking.  In C11, it would map to   * kill_dependency().  It could be used as follows: - * + * ``   *	rcu_read_lock();   *	p = rcu_dereference(gp);   *	long_lived = is_long_lived(p); @@ -579,6 +579,7 @@ static inline void rcu_preempt_sleep_check(void) { }   *			p = rcu_pointer_handoff(p);   *	}   *	rcu_read_unlock(); + *``   */  #define rcu_pointer_handoff(p) (p) @@ -778,18 +779,21 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)  /**   * RCU_INIT_POINTER() - initialize an RCU protected pointer + * @p: The pointer to be initialized. + * @v: The value to initialized the pointer to.   *   * Initialize an RCU-protected pointer in special cases where readers   * do not need ordering constraints on the CPU or the compiler.  These   * special cases are:   * - * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer -or- + * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer *or*   * 2.	The caller has taken whatever steps are required to prevent - *	RCU readers from concurrently accessing this pointer -or- + *	RCU readers from concurrently accessing this pointer *or*   * 3.	The referenced data structure has already been exposed to - *	readers either at compile time or via rcu_assign_pointer() -and- - *	a.	You have not made -any- reader-visible changes to - *		this structure since then -or- + *	readers either at compile time or via rcu_assign_pointer() *and* + * + *	a.	You have not made *any* reader-visible changes to + *		this structure since then *or*   *	b.	It is OK for readers accessing this structure from its   *		new location to see the old state of the structure.  (For   *		example, the changes were to statistical counters or to @@ -805,7 +809,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)   * by a single external-to-structure RCU-protected pointer, then you may   * use RCU_INIT_POINTER() to initialize the internal RCU-protected   * pointers, but you must use rcu_assign_pointer() to initialize the - * external-to-structure pointer -after- you have completely initialized + * external-to-structure pointer *after* you have completely initialized   * the reader-accessible portions of the linked structure.   *   * Note that unlike rcu_assign_pointer(), RCU_INIT_POINTER() provides no @@ -819,6 +823,8 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)  /**   * RCU_POINTER_INITIALIZER() - statically initialize an RCU protected pointer + * @p: The pointer to be initialized. + * @v: The value to initialized the pointer to.   *   * GCC-style initialization for an RCU-protected pointer in a structure field.   */ | 
