From: Luca Falavigna <dktrkranz@gmail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] Real-Time Preemption V0.7.53-02, fix redundant PREEMPT_RCU config option
Date: Thu, 11 Aug 2005 21:20:06 +0000 [thread overview]
Message-ID: <42FBC106.3040501@gmail.com> (raw)
This patch removes a redundant PREEMPT_RCU option from kernel/Kconfig.preempt.
Signed-off-by: Luca Falavigna <dktrkranz@gmail.com>
--- realtime-preempt-2.6.13-rc4-RT-V0.7.53-02.orig 2005-08-11 18:56:51.000000000
+0000
+++ realtime-preempt-2.6.13-rc4-RT-V0.7.53-02 2005-08-11 21:13:43.000000000 +0000
@@ -21571,18 +21571,6 @@ Index: linux/kernel/Kconfig.preempt
+
+ Say N if you are unsure.
+
-+config PREEMPT_RCU
-+ bool "Preemptible RCU"
-+ default n
-+ depends on PREEMPT
-+ help
-+ This option reduces the latency of the kernel by making certain
-+ RCU sections preemptible. Normally RCU code is non-preemptible, if
-+ this option is selected then read-only RCU sections become
-+ preemptible. This helps latency, but may increase memory utilization.
-+
-+ Say N if you are unsure.
-+
+config SPINLOCK_BKL
+ bool "Old-Style Big Kernel Lock"
+ depends on (PREEMPT || SMP) && !PREEMPT_RT
Regards,
--
Luca
next reply other threads:[~2005-08-11 21:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-11 21:20 Luca Falavigna [this message]
2005-08-12 6:21 ` Ingo Molnar
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