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workqueue: rename cpu_workqueue to pool_workqueue

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workqueue has moved away from global_cwqs to worker_pools and with the
scheduled custom worker pools, wforkqueues will be associated with
pools which don't have anything to do with CPUs.  The workqueue code
went through significant amount of changes recently and mass renaming
isn't likely to hurt much additionally.  Let's replace 'cpu' with
'pool' so that it reflects the current design.

* s/struct cpu_workqueue_struct/struct pool_workqueue/
* s/cpu_wq/pool_wq/
* s/cwq/pwq/

This patch is purely cosmetic.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2013-02-13 19:29:12 -08:00
parent 8d03ecfe47
commit 112202d909
4 changed files with 228 additions and 229 deletions
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12
include/linux/workqueue.h
View file

@ -27,7 +27,7 @@ void delayed_work_timer_fn(unsigned long __data);
enum {
WORK_STRUCT_PENDING_BIT = 0, /* work item is pending execution */
WORK_STRUCT_DELAYED_BIT = 1, /* work item is delayed */
WORK_STRUCT_CWQ_BIT = 2, /* data points to cwq */
WORK_STRUCT_PWQ_BIT = 2, /* data points to pwq */
WORK_STRUCT_LINKED_BIT = 3, /* next work is linked to this one */
#ifdef CONFIG_DEBUG_OBJECTS_WORK
WORK_STRUCT_STATIC_BIT = 4, /* static initializer (debugobjects) */
@ -40,7 +40,7 @@ enum {
WORK_STRUCT_PENDING = 1 << WORK_STRUCT_PENDING_BIT,
WORK_STRUCT_DELAYED = 1 << WORK_STRUCT_DELAYED_BIT,
WORK_STRUCT_CWQ = 1 << WORK_STRUCT_CWQ_BIT,
WORK_STRUCT_PWQ = 1 << WORK_STRUCT_PWQ_BIT,
WORK_STRUCT_LINKED = 1 << WORK_STRUCT_LINKED_BIT,
#ifdef CONFIG_DEBUG_OBJECTS_WORK
WORK_STRUCT_STATIC = 1 << WORK_STRUCT_STATIC_BIT,
@ -60,14 +60,14 @@ enum {
WORK_CPU_END = NR_CPUS + 1,
/*
* Reserve 7 bits off of cwq pointer w/ debugobjects turned
* off. This makes cwqs aligned to 256 bytes and allows 15
* workqueue flush colors.
* Reserve 7 bits off of pwq pointer w/ debugobjects turned off.
* This makes pwqs aligned to 256 bytes and allows 15 workqueue
* flush colors.
*/
WORK_STRUCT_FLAG_BITS = WORK_STRUCT_COLOR_SHIFT +
WORK_STRUCT_COLOR_BITS,
/* data contains off-queue information when !WORK_STRUCT_CWQ */
/* data contains off-queue information when !WORK_STRUCT_PWQ */
WORK_OFFQ_FLAG_BASE = WORK_STRUCT_FLAG_BITS,
WORK_OFFQ_CANCELING = (1 << WORK_OFFQ_FLAG_BASE),

10
include/trace/events/workqueue.h
View file

@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(workqueue_work,
/**
* workqueue_queue_work - called when a work gets queued
* @req_cpu: the requested cpu
* @cwq: pointer to struct cpu_workqueue_struct
* @pwq: pointer to struct pool_workqueue
* @work: pointer to struct work_struct
*
* This event occurs when a work is queued immediately or once a
@ -36,10 +36,10 @@ DECLARE_EVENT_CLASS(workqueue_work,
*/
TRACE_EVENT(workqueue_queue_work,
TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq,
TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq,
struct work_struct *work),
TP_ARGS(req_cpu, cwq, work),
TP_ARGS(req_cpu, pwq, work),
TP_STRUCT__entry(
__field( void *, work )
@ -52,9 +52,9 @@ TRACE_EVENT(workqueue_queue_work,
TP_fast_assign(
__entry->work = work;
__entry->function = work->func;
__entry->workqueue = cwq->wq;
__entry->workqueue = pwq->wq;
__entry->req_cpu = req_cpu;
__entry->cpu = cwq->pool->cpu;
__entry->cpu = pwq->pool->cpu;
),
TP_printk("work struct=%p function=%pf workqueue=%p req_cpu=%u cpu=%u",

433
kernel/workqueue.c
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File diff suppressed because it is too large Load diff

2
kernel/workqueue_internal.h
View file

@ -28,7 +28,7 @@ struct worker {
struct work_struct *current_work; /* L: work being processed */
work_func_t current_func; /* L: current_work's fn */
struct cpu_workqueue_struct *current_cwq; /* L: current_work's cwq */
struct pool_workqueue *current_pwq; /* L: current_work's pwq */
struct list_head scheduled; /* L: scheduled works */
struct task_struct *task; /* I: worker task */
struct worker_pool *pool; /* I: the associated pool */