From 0712fb763746576e0960b1812d5a881dfd1b14f8 Mon Sep 17 00:00:00 2001 From: Josh Boyer <jwboyer@fedoraproject.org> Date: Mon, 11 Nov 2013 08:39:16 -0500 Subject: 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. Bugzilla: N/A Upstream-status: Nak'd, supposedly replacement coming to auto-select Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> (cherry picked from commit c9df8b57b85bf43b564ddad0151ed5790ec2bf25) Signed-off-by: Munehisa Kamata <kamatam@amazon.com> Reviewed-by: Cristian Gafton <gafton@amazon.com> Reviewed-by: Guru Anbalagane <guruanb@amazon.com> CR: https://cr.amazon.com/r/6834769/ --- lib/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/Kconfig b/lib/Kconfig index 260a80e..f361d8e 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -399,7 +399,8 @@ 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 -- 2.7.5