From fcc878e4dfb70128a73857c609d70570629b0d9e Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 28 Jun 2018 07:39:59 -0700 Subject: rcu: Remove now-unused ->b.exp_need_qs field from the rcu_special union The ->b.exp_need_qs field is now set only to false, so this commit removes it. The job this field used to do is now done by the rcu_data structure's ->deferred_qs field, which is a consequence of a better split between task-based (the rcu_node structure's ->exp_tasks field) and CPU-based (the aforementioned rcu_data structure's ->deferred_qs field) tracking of quiescent states for RCU-preempt expedited grace periods. Signed-off-by: Paul E. McKenney --- include/linux/sched.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 977cb57d7bc9..004ca21f7e80 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -571,12 +571,8 @@ union rcu_special { struct { u8 blocked; u8 need_qs; - u8 exp_need_qs; - - /* Otherwise the compiler can store garbage here: */ - u8 pad; } b; /* Bits. */ - u32 s; /* Set of bits. */ + u16 s; /* Set of bits. */ }; enum perf_event_task_context { -- cgit v1.2.3