kernel/rcu/tree.h

46 	unsigned long gp_seq_needed; /* Track furthest future GP request. */
54 	unsigned long rcu_gp_init_mask;	/* Mask of offline CPUs at GP init. */
56 				/* Per-GP initial value for qsmask. */
61 				/*  to allow the current expedited GP */
64 				/* Per-GP initial values for expmask. */
66 				/*  beginning of each expedited GP. */
68 				/* Online CPUs for next expedited GP. */
72 				/* Workers performing per node expedited GP */
126 				/* Place for rcu_nocb_kthread() to wait GP. */
181 	unsigned long	gp_seq_needed;	/* Track furthest future GP request. */
209 	int  watching_snap;		/* Per-GP tracking for dynticks. */
210 	bool rcu_need_heavy_qs;		/* GP old, so heavy quiescent state! */
211 	bool rcu_urgent_qs;		/* GP old need light quiescent state. */
213 	bool rcu_forced_tick_exp;	/*   ... provide QS to expedited GP. */
229 	struct mutex nocb_gp_kthread_mutex; /* Exclusion for nocb gp kthread */
239 	/* The following fields are used by GP kthread, hence own cacheline. */
241 	u8 nocb_gp_sleep;		/* Is the nocb GP thread asleep? */
243 	u8 nocb_gp_gp;			/* GP to wait for on last scan? */
258 					/* GP rdp takes GP-end wakeups. */
352 	unsigned long gp_max;			/* Maximum GP duration in */
355 	struct swait_queue_head gp_wq;		/* Where GP task waits. */
356 	short gp_flags;				/* Commands for GP task. */
357 	short gp_state;				/* GP kthread sleep state. */
358 	unsigned long gp_wake_time;		/* Last GP kthread wake. */
360 	unsigned long gp_seq_polled;		/* GP seq for polled API. */
361 	unsigned long gp_seq_polled_snap;	/* ->gp_seq_polled at normal GP start. */
362 	unsigned long gp_seq_polled_exp_snap;	/* ->gp_seq_polled at expedited GP start. */
375 	struct mutex exp_mutex;			/* Serialize expedited GP. */
390 	unsigned long gp_start;			/* Time at which GP started, */
392 	unsigned long gp_end;			/* Time last GP ended, again */
394 	unsigned long gp_activity;		/* Time of last GP kthread */
396 	unsigned long gp_req_activity;		/* Time of last GP request */
407 						/*  GP start. */
413 						/*  GP pre-initialization. */
416 	struct llist_head srs_next;	/* request a GP users. */
417 	struct llist_node *srs_wait_tail; /* wait for GP users. */
418 	struct llist_node *srs_done_tail; /* ready for GP users. */
435 #define RCU_GP_IDLE	 0	/* Initial state and no GP in progress. */