diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-04-19 15:59:55 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-05-15 10:31:04 -0700 |
| commit | a458360af63a36424c9f607015f0858aacb84a19 (patch) | |
| tree | 315a0afe847e4fa210db1b9f9c5971286aeddcaa /kernel/rcu | |
| parent | c1935209df8c903fc3a33143223338826fa54bd1 (diff) | |
rcu: Drop early GP request check from rcu_gp_kthread()
Now that grace-period requests use funnel locking and now that they
set ->gp_flags to RCU_GP_FLAG_INIT even when the RCU grace-period
kthread has not yet started, rcu_gp_kthread() no longer needs to check
need_any_future_gp() at startup time. This commit therefore removes
this check.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 020a0fe2dbee..ed238886e6ca 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2135,12 +2135,6 @@ static int __noreturn rcu_gp_kthread(void *arg) struct rcu_state *rsp = arg; struct rcu_node *rnp = rcu_get_root(rsp); - /* Check for early-boot work. */ - raw_spin_lock_irq_rcu_node(rnp); - if (need_any_future_gp(rnp)) - WRITE_ONCE(rsp->gp_flags, RCU_GP_FLAG_INIT); - raw_spin_unlock_irq_rcu_node(rnp); - rcu_bind_gp_kthread(); for (;;) { |