Now that RCU Tasks Trace has been re-implemented in terms of SRCU-fast, the ->trc_holdout_list task_struct field is only initialized, and never actually used. This commit therefore removes it.
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: <[email protected]> --- include/linux/sched.h | 1 - init/init_task.c | 1 - kernel/fork.c | 1 - 3 files changed, 3 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 3f840cfa941132..e62c99e44a5502 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -941,7 +941,6 @@ struct task_struct { int trc_reader_nesting; struct srcu_ctr __percpu *trc_reader_scp; union rcu_special trc_reader_special; - struct list_head trc_holdout_list; #endif /* #ifdef CONFIG_TASKS_TRACE_RCU */ struct sched_info sched_info; diff --git a/init/init_task.c b/init/init_task.c index dd6226251689c8..91c37f66ec8e9a 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -166,7 +166,6 @@ struct task_struct init_task __aligned(L1_CACHE_BYTES) = { #ifdef CONFIG_TASKS_TRACE_RCU .trc_reader_nesting = 0, .trc_reader_special.s = 0, - .trc_holdout_list = LIST_HEAD_INIT(init_task.trc_holdout_list), #endif #ifdef CONFIG_CPUSETS .mems_allowed_seq = SEQCNT_SPINLOCK_ZERO(init_task.mems_allowed_seq, diff --git a/kernel/fork.c b/kernel/fork.c index 69d34c123b9e5f..12388e895d2955 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1781,7 +1781,6 @@ static inline void rcu_copy_process(struct task_struct *p) #ifdef CONFIG_TASKS_TRACE_RCU p->trc_reader_nesting = 0; p->trc_reader_special.s = 0; - INIT_LIST_HEAD(&p->trc_holdout_list); #endif /* #ifdef CONFIG_TASKS_TRACE_RCU */ } -- 2.40.1
