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aff5f036
编写于
6年前
作者:
P
Paul E. McKenney
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差异文件
rcu: Clean up flavor-related definitions and comments in rculist.h
Signed-off-by:
N
Paul E. McKenney
<
paulmck@linux.vnet.ibm.com
>
上级
2bd8b1a2
变更
1
隐藏空白更改
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1 changed file
with
15 addition
and
17 deletion
+15
-17
include/linux/rculist.h
include/linux/rculist.h
+15
-17
未找到文件。
include/linux/rculist.h
浏览文件 @
aff5f036
...
...
@@ -182,7 +182,7 @@ static inline void list_replace_rcu(struct list_head *old,
* @list: the RCU-protected list to splice
* @prev: points to the last element of the existing list
* @next: points to the first element of the existing list
* @sync:
function to sync: synchronize_rcu(), synchronize_sched()
, ...
* @sync:
synchronize_rcu, synchronize_rcu_expedited
, ...
*
* The list pointed to by @prev and @next can be RCU-read traversed
* concurrently with this function.
...
...
@@ -240,7 +240,7 @@ static inline void __list_splice_init_rcu(struct list_head *list,
* designed for stacks.
* @list: the RCU-protected list to splice
* @head: the place in the existing list to splice the first list into
* @sync:
function to sync: synchronize_rcu(), synchronize_sched()
, ...
* @sync:
synchronize_rcu, synchronize_rcu_expedited
, ...
*/
static
inline
void
list_splice_init_rcu
(
struct
list_head
*
list
,
struct
list_head
*
head
,
...
...
@@ -255,7 +255,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list, designed for queues.
* @list: the RCU-protected list to splice
* @head: the place in the existing list to splice the first list into
* @sync:
function to sync: synchronize_rcu(), synchronize_sched()
, ...
* @sync:
synchronize_rcu, synchronize_rcu_expedited
, ...
*/
static
inline
void
list_splice_tail_init_rcu
(
struct
list_head
*
list
,
struct
list_head
*
head
,
...
...
@@ -359,13 +359,12 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
* @type: the type of the struct this is embedded in.
* @member: the name of the list_head within the struct.
*
* This primitive may safely run concurrently with the _rcu list-mutation
* primitives such as list_add_rcu(), but requires some implicit RCU
* read-side guarding. One example is running within a special
* exception-time environment where preemption is disabled and where
* lockdep cannot be invoked (in which case updaters must use RCU-sched,
* as in synchronize_sched(), call_rcu_sched(), and friends). Another
* example is when items are added to the list, but never deleted.
* This primitive may safely run concurrently with the _rcu
* list-mutation primitives such as list_add_rcu(), but requires some
* implicit RCU read-side guarding. One example is running within a special
* exception-time environment where preemption is disabled and where lockdep
* cannot be invoked. Another example is when items are added to the list,
* but never deleted.
*/
#define list_entry_lockless(ptr, type, member) \
container_of((typeof(ptr))READ_ONCE(ptr), type, member)
...
...
@@ -376,13 +375,12 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*
* This primitive may safely run concurrently with the _rcu list-mutation
* primitives such as list_add_rcu(), but requires some implicit RCU
* read-side guarding. One example is running within a special
* exception-time environment where preemption is disabled and where
* lockdep cannot be invoked (in which case updaters must use RCU-sched,
* as in synchronize_sched(), call_rcu_sched(), and friends). Another
* example is when items are added to the list, but never deleted.
* This primitive may safely run concurrently with the _rcu
* list-mutation primitives such as list_add_rcu(), but requires some
* implicit RCU read-side guarding. One example is running within a special
* exception-time environment where preemption is disabled and where lockdep
* cannot be invoked. Another example is when items are added to the list,
* but never deleted.
*/
#define list_for_each_entry_lockless(pos, head, member) \
for (pos = list_entry_lockless((head)->next, typeof(*pos), member); \
...
...
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