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From 0f3f5c5b4ca2eb1f41947c50bedb9b17aa1a1f80 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@fedoraproject.org>
Date: Mon, 11 Nov 2013 08:39:16 -0500
Subject: [PATCH] lib/cpumask: Make CPUMASK_OFFSTACK usable without debug
dependency
When CPUMASK_OFFSTACK was added in 2008, it was dependent upon
DEBUG_PER_CPU_MAPS being enabled, or an architecture could select it.
The debug dependency adds additional overhead that isn't required for
operation of the feature, and we need CPUMASK_OFFSTACK to increase the
NR_CPUS value beyond 512 on x86. We drop the current dependency and make
sure SMP is set.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
---
lib/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/Kconfig b/lib/Kconfig
index b3c8be0..50b47cd 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -342,7 +342,8 @@ config CHECK_SIGNATURE
bool
config CPUMASK_OFFSTACK
- bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
+ bool "Force CPU masks off stack"
+ depends on SMP
help
Use dynamic allocation for cpumask_var_t, instead of putting
them on the stack. This is a bit more expensive, but avoids
--
1.8.3.1
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