Blame SOURCES/lib-cpumask-Make-CPUMASK_OFFSTACK-usable-without-deb.patch
|
|
e336be |
From: Josh Boyer <jwboyer@fedoraproject.org>
|
|
|
e336be |
Date: Mon, 11 Nov 2013 08:39:16 -0500
|
|
|
e336be |
Subject: [PATCH] lib/cpumask: Make CPUMASK_OFFSTACK usable without debug
|
|
|
e336be |
dependency
|
|
|
e336be |
|
|
|
e336be |
When CPUMASK_OFFSTACK was added in 2008, it was dependent upon
|
|
|
e336be |
DEBUG_PER_CPU_MAPS being enabled, or an architecture could select it.
|
|
|
e336be |
The debug dependency adds additional overhead that isn't required for
|
|
|
e336be |
operation of the feature, and we need CPUMASK_OFFSTACK to increase the
|
|
|
e336be |
NR_CPUS value beyond 512 on x86. We drop the current dependency and make
|
|
|
e336be |
sure SMP is set.
|
|
|
e336be |
|
|
|
e336be |
Bugzilla: N/A
|
|
|
e336be |
Upstream-status: Nak'd, supposedly replacement coming to auto-select
|
|
|
e336be |
|
|
|
e336be |
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
|
|
|
e336be |
|
|
|
e336be |
lib/Kconfig | 3 ++-
|
|
|
e336be |
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
e336be |
|
|
|
e336be |
diff
|
|
|
e336be |
index 3a2ef67db6c7..4af1e7e5a611 100644
|
|
|
e336be |
|
|
|
e336be |
|
|
|
e336be |
@@ -396,7 +396,8 @@ config CHECK_SIGNATURE
|
|
|
e336be |
bool
|
|
|
e336be |
|
|
|
e336be |
config CPUMASK_OFFSTACK
|
|
|
e336be |
- bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS
|
|
|
e336be |
+ bool "Force CPU masks off stack"
|
|
|
e336be |
+ depends on SMP
|
|
|
e336be |
help
|
|
|
e336be |
Use dynamic allocation for cpumask_var_t, instead of putting
|
|
|
e336be |
them on the stack. This is a bit more expensive, but avoids
|