The commit is pushed to "branch-rh9-5.14.vz9.1.x-ovz" and will appear at
https://src.openvz.org/scm/ovz/vzkernel.git
after ark-5.14
------>
commit 10396f2f4f64c438b1da44806cfce0aaeb21a1ef
Author: Josh Boyer <jwbo...@fedoraproject.org>
Date: Fri Sep 24 15:04:52 2021 +0300
rh/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 <jwbo...@fedoraproject.org>
khorenko@: taken from Fedora 27 kernel, otherwise NR_CPUS is limited to 64
without CONFIG_MAXSMP set.
(cherry picked from vz8 commit bf34653509606bdca624f645498045f8a3a593b3)
Signed-off-by: Andrey Zhadchenko <andrey.zhadche...@virtuozzo.com>
---
lib/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/Kconfig b/lib/Kconfig
index 5c9c0687f76d..6a3cdf3d341e 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -498,7 +498,8 @@ 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
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