KolibriOS/kolibrios
13
14
Fork 12
Code Issues 113 Pull Requests 16 Actions Projects 1 Releases Wiki Activity

ddk: 3.19-rc1

Browse Source 
git-svn-id: svn://kolibrios.org@5270 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2014-12-27 15:42:08 +00:00
parent bade30c7b8
commit 16bc56fa96
228 changed files with 19878 additions and 3572 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/include/linux/rculist.h
View File

@@ -7,7 +7,7 @@
* RCU-protected list version
*/
#include <linux/list.h>
//#include <linux/rcupdate.h>
#include <linux/rcupdate.h>
/*
* Why is there no list_empty_rcu()? Because list_empty() serves this
@@ -18,6 +18,21 @@
* be used anywhere you would want to use a list_empty_rcu().
*/
/*
* INIT_LIST_HEAD_RCU - Initialize a list_head visible to RCU readers
* @list: list to be initialized
*
* You should instead use INIT_LIST_HEAD() for normal initialization and
* cleanup tasks, when readers have no access to the list being initialized.
* However, if the list being initialized is visible to readers, you
* need to keep the compiler from being too mischievous.
*/
static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
{
ACCESS_ONCE(list->next) = list;
ACCESS_ONCE(list->prev) = list;
}
/*
* return the ->next pointer of a list_head in an rcu safe
* way, we must not access it directly
@@ -197,7 +212,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* instead of INIT_LIST_HEAD().
*/
INIT_LIST_HEAD(list);
INIT_LIST_HEAD_RCU(list);
/*
* At this point, the list body still points to the source list.
@@ -226,7 +241,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_entry_rcu - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
* @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() as long as it's guarded by rcu_read_lock().
@@ -263,7 +278,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_first_or_null_rcu - get the first element from a list
* @ptr: the list head to take the element from.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
* @member: the name of the list_head within the struct.
*
* Note that if the list is empty, it returns NULL.
*
@@ -281,7 +296,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_for_each_entry_rcu - iterate over rcu list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
* @member: the name of the list_head within the struct.
*
* This list-traversal primitive may safely run concurrently with
* the _rcu list-mutation primitives such as list_add_rcu()
@@ -296,7 +311,7 @@ static inline void list_splice_init_rcu(struct list_head *list,
* list_for_each_entry_continue_rcu - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
* @member: the name of the list_head within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
@@ -527,6 +542,15 @@ static inline void hlist_add_behind_rcu(struct hlist_node *n,
pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
typeof(*(pos)), member))
/**
* hlist_for_each_entry_from_rcu - iterate over a hlist continuing from current point
* @pos: the type * to use as a loop cursor.
* @member: the name of the hlist_node within the struct.
*/
#define hlist_for_each_entry_from_rcu(pos, member) \
for (; pos; \
pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
typeof(*(pos)), member))
#endif /* __KERNEL__ */
#endif