From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
rostedt@goodmis.org, "Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 05/12] rcu: Forbid RCU_STRICT_GRACE_PERIOD in TINY_RCU kernels
Date: Mon, 20 Jun 2022 15:20:25 -0700 [thread overview]
Message-ID: <20220620222032.3839547-5-paulmck@kernel.org> (raw)
In-Reply-To: <20220620222022.GA3839466@paulmck-ThinkPad-P17-Gen-1>
The RCU_STRICT_GRACE_PERIOD Kconfig option does nothing in kernels
built with CONFIG_TINY_RCU=y, so this commit adjusts the dependencies
to disallow this combination.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug
index 9b64e55d4f615..4da05beb13d79 100644
--- a/kernel/rcu/Kconfig.debug
+++ b/kernel/rcu/Kconfig.debug
@@ -121,7 +121,7 @@ config RCU_EQS_DEBUG
config RCU_STRICT_GRACE_PERIOD
bool "Provide debug RCU implementation with short grace periods"
- depends on DEBUG_KERNEL && RCU_EXPERT && NR_CPUS <= 4
+ depends on DEBUG_KERNEL && RCU_EXPERT && NR_CPUS <= 4 && !TINY_RCU
default n
select PREEMPT_COUNT if PREEMPT=n
help
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2022-06-20 22:21 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 22:20 [PATCH rcu 0/12] Miscellaneous fixes for v5.20 Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 01/12] rcu: Decrease FQS scan wait time in case of callback overloading Paul E. McKenney
2022-06-21 5:29 ` Neeraj Upadhyay
2022-06-21 22:19 ` Paul E. McKenney
2022-06-22 11:46 ` Neeraj Upadhyay
2022-06-20 22:20 ` [PATCH rcu 02/12] rcu: Avoid tracing a few functions executed in stop machine Paul E. McKenney
2022-06-21 5:47 ` Neeraj Upadhyay
2022-06-21 22:21 ` Paul E. McKenney
2022-06-22 11:50 ` Neeraj Upadhyay
2022-06-22 15:35 ` Paul E. McKenney
2022-06-22 15:49 ` Neeraj Upadhyay
2022-06-23 0:29 ` Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 03/12] rcu: Add rnp->cbovldmask check in rcutree_migrate_callbacks() Paul E. McKenney
2022-06-21 5:57 ` Neeraj Upadhyay
2022-06-21 22:22 ` Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 04/12] rcu: Immediately boost preempted readers for strict grace periods Paul E. McKenney
2022-06-21 6:00 ` Neeraj Upadhyay
2022-06-20 22:20 ` Paul E. McKenney [this message]
2022-06-21 6:02 ` [PATCH rcu 05/12] rcu: Forbid RCU_STRICT_GRACE_PERIOD in TINY_RCU kernels Neeraj Upadhyay
2022-06-20 22:20 ` [PATCH rcu 06/12] locking/csd_lock: Change csdlock_debug from early_param to __setup Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 07/12] rcu: tiny: Record kvfree_call_rcu() call stack for KASAN Paul E. McKenney
2022-06-21 6:31 ` Neeraj Upadhyay
2022-06-21 19:31 ` Paul E. McKenney
2022-06-21 21:14 ` Marco Elver
2022-06-21 22:17 ` Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 08/12] rcu: Cleanup RCU urgency state for offline CPU Paul E. McKenney
2022-06-21 7:03 ` Neeraj Upadhyay
2022-06-21 22:24 ` Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 09/12] rcu/kvfree: Remove useless monitor_todo flag Paul E. McKenney
2022-06-21 10:02 ` Neeraj Upadhyay
2022-06-20 22:20 ` [PATCH rcu 10/12] rcu: Initialize first_gp_fqs at declaration in rcu_gp_fqs() Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 11/12] rcu/tree: Add comment to describe GP-done condition in fqs loop Paul E. McKenney
2022-06-20 22:20 ` [PATCH rcu 12/12] srcu: Block less aggressively for expedited grace periods Paul E. McKenney
2022-06-21 2:00 ` Zhangfei Gao
2022-06-21 3:15 ` Paul E. McKenney
2022-06-21 7:43 ` Shameerali Kolothum Thodi
2022-06-21 19:36 ` Paul E. McKenney
2022-06-21 10:13 ` Neeraj Upadhyay
2022-06-21 22:25 ` Paul E. McKenney
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