workqueue: implement alloc_ordered_workqueue()
alloc_ordered_workqueue() creates a workqueue which processes each work itemp one by one in the queued order. This will be used to replace create_freezeable_workqueue() and create_singlethread_workqueue(). Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
parent
151b6a5f1d
commit
81dcaf6516
|
@ -306,6 +306,24 @@ __alloc_workqueue_key(const char *name, unsigned int flags, int max_active,
|
|||
__alloc_workqueue_key((name), (flags), (max_active), NULL, NULL)
|
||||
#endif
|
||||
|
||||
/**
|
||||
* alloc_ordered_workqueue - allocate an ordered workqueue
|
||||
* @name: name of the workqueue
|
||||
* @flags: WQ_* flags (only WQ_FREEZEABLE and WQ_RESCUER are meaningful)
|
||||
*
|
||||
* Allocate an ordered workqueue. An ordered workqueue executes at
|
||||
* most one work item at any given time in the queued order. They are
|
||||
* implemented as unbound workqueues with @max_active of one.
|
||||
*
|
||||
* RETURNS:
|
||||
* Pointer to the allocated workqueue on success, %NULL on failure.
|
||||
*/
|
||||
static inline struct workqueue_struct *
|
||||
alloc_ordered_workqueue(const char *name, unsigned int flags)
|
||||
{
|
||||
return alloc_workqueue(name, WQ_UNBOUND | flags, 1);
|
||||
}
|
||||
|
||||
#define create_workqueue(name) \
|
||||
alloc_workqueue((name), WQ_RESCUER, 1)
|
||||
#define create_freezeable_workqueue(name) \
|
||||
|
|
Loading…
Reference in New Issue