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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485/* SPDX-License-Identifier: GPL-2.0 *//* * kernel/workqueue_internal.h * * Workqueue internal header file. Only to be included by workqueue and * core kernel subsystems. */#ifndef _KERNEL_WORKQUEUE_INTERNAL_H#define _KERNEL_WORKQUEUE_INTERNAL_H
#include <linux/workqueue.h>#include <linux/kthread.h>#include <linux/preempt.h>
struct worker_pool;
/* * The poor guys doing the actual heavy lifting. All on-duty workers are * either serving the manager role, on idle list or on busy hash. For * details on the locking annotation (L, I, X...), refer to workqueue.c. * * Only to be used in workqueue and async. */struct worker { /* on idle list while idle, on busy hash table while busy */ union { struct list_head entry; /* L: while idle */ struct hlist_node hentry; /* L: while busy */ };
struct work_struct *current_work; /* K: work being processed and its */ work_func_t current_func; /* K: function */ struct pool_workqueue *current_pwq; /* K: pwq */ u64 current_at; /* K: runtime at start or last wakeup */ unsigned long current_start; /* K: start time of current work item */ unsigned int current_color; /* K: color */
int sleeping; /* S: is worker sleeping? */
/* used by the scheduler to determine a worker's last known identity */ work_func_t last_func; /* K: last work's fn */
struct list_head scheduled; /* L: scheduled works */
struct task_struct *task; /* I: worker task */ struct worker_pool *pool; /* A: the associated pool */ /* L: for rescuers */ struct list_head node; /* A: anchored at pool->workers */ /* A: runs through worker->node */
unsigned long last_active; /* K: last active timestamp */ unsigned int flags; /* L: flags */ int id; /* I: worker id */
/* * Opaque string set with work_set_desc(). Printed out with task * dump for debugging - WARN, BUG, panic or sysrq. */ char desc[WORKER_DESC_LEN];
/* used only by rescuers to point to the target workqueue */ struct workqueue_struct *rescue_wq; /* I: the workqueue to rescue */};
/** * current_wq_worker - return struct worker if %current is a workqueue worker */static inline struct worker *current_wq_worker(void){ if (in_task() && (current->flags & PF_WQ_WORKER)) return kthread_data(current); return NULL;}
/* * Scheduler hooks for concurrency managed workqueue. Only to be used from * sched/ and workqueue.c. */void wq_worker_running(struct task_struct *task);void wq_worker_sleeping(struct task_struct *task);void wq_worker_tick(struct task_struct *task);work_func_t wq_worker_last_func(struct task_struct *task);
#endif /* _KERNEL_WORKQUEUE_INTERNAL_H */