cregit-Linux how code gets into the kernel

Release 4.15 kernel/workqueue_internal.h

Directory: kernel
/* SPDX-License-Identifier: GPL-2.0 */
 * kernel/workqueue_internal.h
 * Workqueue internal header file.  Only to be included by workqueue and
 * core kernel subsystems.


#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;	/* L: work being processed */
work_func_t		current_func;	/* L: current_work's fn */
struct pool_workqueue	*current_pwq; /* L: current_work's pwq */
bool			desc_valid;	/* ->desc is valid */
struct list_head	scheduled;	/* L: scheduled works */

	/* 64 bytes boundary on 64bit, 32 on 32bit */

struct task_struct	*task;		/* I: worker task */
struct worker_pool	*pool;		/* I: the associated pool */
						/* L: for rescuers */
struct list_head	node;		/* A: anchored at pool->workers */
						/* A: runs through worker->node */

unsigned long		last_active;	/* L: last active timestamp */
unsigned int		flags;		/* X: 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; }


Tejun Heo2884.85%150.00%
Li Bin515.15%150.00%

/* * Scheduler hooks for concurrency managed workqueue. Only to be used from * sched/core.c and workqueue.c. */ void wq_worker_waking_up(struct task_struct *task, int cpu); struct task_struct *wq_worker_sleeping(struct task_struct *task); #endif /* _KERNEL_WORKQUEUE_INTERNAL_H */

Overall Contributors

Tejun Heo15890.29%545.45%
Li Bin84.57%19.09%
Lai Jiangshan74.00%327.27%
Greg Kroah-Hartman10.57%19.09%
Viresh Kumar10.57%19.09%
Directory: kernel
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