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Merge branch 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

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Pull workqueue updates from Tejun Heo:
 "Lai simplified worker destruction path and internal workqueue locking
  and there are some other minor changes.

  Except for the removal of some long-deprecated interfaces which
  haven't had any in-kernel user for quite a while, there shouldn't be
  any difference to workqueue users"

* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  kernel/workqueue.c: pr_warning/pr_warn & printk/pr_info
  workqueue: remove the confusing POOL_FREEZING
  workqueue: rename first_worker() to first_idle_worker()
  workqueue: remove unused work_clear_pending()
  workqueue: remove unused WORK_CPU_END
  workqueue: declare system_highpri_wq
  workqueue: use generic attach/detach routine for rescuers
  workqueue: separate pool-attaching code out from create_worker()
  workqueue: rename manager_mutex to attach_mutex
  workqueue: narrow the protection range of manager_mutex
  workqueue: convert worker_idr to worker_ida
  workqueue: separate iteration role from worker_idr
  workqueue: destroy worker directly in the idle timeout handler
  workqueue: async worker destruction
  workqueue: destroy_worker() should destroy idle workers only
  workqueue: use manager lock only to protect worker_idr
  workqueue: Remove deprecated system_nrt[_freezable]_wq
  workqueue: Remove deprecated flush[_delayed]_work_sync()
  kernel/workqueue.c: pr_warning/pr_warn & printk/pr_info
  workqueue: simplify wq_update_unbound_numa() by jumping to use_dfl_pwq if the target cpumask equals wq's
This commit is contained in:
Linus Torvalds
2014-06-09 14:56:49 -07:00
parent 68a29ef2e3 015af06e10
commit da85d191f5
3 changed files with 154 additions and 336 deletions
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include/linux/workqueue.h
+5 -35
View File
@@ -56,9 +56,8 @@ enum {
WORK_NR_COLORS = (1 << WORK_STRUCT_COLOR_BITS) - 1,
WORK_NO_COLOR = WORK_NR_COLORS,
/* special cpu IDs */
/* not bound to any CPU, prefer the local CPU */
WORK_CPU_UNBOUND = NR_CPUS,
WORK_CPU_END = NR_CPUS + 1,
/*
* Reserve 7 bits off of pwq pointer w/ debugobjects turned off.
@@ -274,13 +273,6 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
#define delayed_work_pending(w) \
work_pending(&(w)->work)
/**
* work_clear_pending - for internal use only, mark a work item as not pending
* @work: The work item in question
*/
#define work_clear_pending(work) \
clear_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(work))
/*
* Workqueue flags and constants. For details, please refer to
* Documentation/workqueue.txt.
@@ -340,6 +332,9 @@ enum {
* short queue flush time. Don't queue works which can run for too
* long.
*
* system_highpri_wq is similar to system_wq but for work items which
* require WQ_HIGHPRI.
*
* system_long_wq is similar to system_wq but may host long running
* works. Queue flushing might take relatively long.
*
@@ -358,26 +353,13 @@ enum {
* 'wq_power_efficient' is disabled. See WQ_POWER_EFFICIENT for more info.
*/
extern struct workqueue_struct *system_wq;
extern struct workqueue_struct *system_highpri_wq;
extern struct workqueue_struct *system_long_wq;
extern struct workqueue_struct *system_unbound_wq;
extern struct workqueue_struct *system_freezable_wq;
extern struct workqueue_struct *system_power_efficient_wq;
extern struct workqueue_struct *system_freezable_power_efficient_wq;
static inline struct workqueue_struct * __deprecated __system_nrt_wq(void)
{
return system_wq;
}
static inline struct workqueue_struct * __deprecated __system_nrt_freezable_wq(void)
{
return system_freezable_wq;
}
/* equivlalent to system_wq and system_freezable_wq, deprecated */
#define system_nrt_wq __system_nrt_wq()
#define system_nrt_freezable_wq __system_nrt_freezable_wq()
extern struct workqueue_struct *
__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
struct lock_class_key *key, const char *lock_name, ...) __printf(1, 6);
@@ -587,18 +569,6 @@ static inline bool keventd_up(void)
return system_wq != NULL;
}
/* used to be different but now identical to flush_work(), deprecated */
static inline bool __deprecated flush_work_sync(struct work_struct *work)
{
return flush_work(work);
}
/* used to be different but now identical to flush_delayed_work(), deprecated */
static inline bool __deprecated flush_delayed_work_sync(struct delayed_work *dwork)
{
return flush_delayed_work(dwork);
}
#ifndef CONFIG_SMP
static inline long work_on_cpu(int cpu, long (*fn)(void *), void *arg)
{