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Drop cpumask auto select patch and set NR_CPUS appropriately 

We've been carrying a patch to make CPUMASK_OFFSTACK selectable
without debugging for a long time now. The comment said this was
going to be replaced with something else but that never seemed
to happen. We're carrying it to have a higher number of CPUs but
at this point, adjusting NR_CPUS doesn't really get us that much
benfit. Drop the patch and just use 8192 or NR_CPUS on x86.

Signed-off-by: Laura Abbott <labbott@redhat.com>
This commit is contained in:
Laura Abbott 2019-08-15 15:17:19 -04:00
parent 9a47638b3d
commit 9742e529b8
6 changed files with 5 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configs/fedora/generic/x86/CONFIG_MAXSMP
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@ -1 +1 @@
# CONFIG_MAXSMP is not set
CONFIG_MAXSMP=y

2
configs/fedora/generic/x86/x86_64/CONFIG_NR_CPUS
View File

@ -1 +1 @@
CONFIG_NR_CPUS=1024
CONFIG_NR_CPUS=8192

2
kernel-i686.config
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@ -2915,7 +2915,7 @@ CONFIG_MAX44009=m
# CONFIG_MAX9611 is not set
CONFIG_MAXIM_THERMOCOUPLE=m
CONFIG_MAX_RAW_DEVS=8192
# CONFIG_MAXSMP is not set
CONFIG_MAXSMP=y
CONFIG_MB1232=m
# CONFIG_MC3230 is not set
# CONFIG_MCB is not set

4
kernel-x86_64.config
View File

@ -2965,7 +2965,7 @@ CONFIG_MAX44009=m
# CONFIG_MAX9611 is not set
CONFIG_MAXIM_THERMOCOUPLE=m
CONFIG_MAX_RAW_DEVS=8192
# CONFIG_MAXSMP is not set
CONFIG_MAXSMP=y
CONFIG_MB1232=m
# CONFIG_MC3230 is not set
# CONFIG_MCB is not set
@ -3920,7 +3920,7 @@ CONFIG_NOUVEAU_DEBUG_DEFAULT=3
# CONFIG_NOUVEAU_DEBUG_MMU is not set
# CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT is not set
CONFIG_NOZOMI=m
CONFIG_NR_CPUS=1024
CONFIG_NR_CPUS=8192
CONFIG_NS83820=m
CONFIG_NTB_AMD=m
CONFIG_NTB_IDT=m

2
kernel.spec
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@ -495,8 +495,6 @@ Source5000: patch-5.%{base_sublevel}-git%{gitrev}.xz
# Standalone patches
# 100 - Generic long running patches
Patch110: lib-cpumask-Make-CPUMASK_OFFSTACK-usable-without-deb.patch
Patch111: input-kill-stupid-messages.patch
Patch112: die-floppy-die.patch

34
lib-cpumask-Make-CPUMASK_OFFSTACK-usable-without-deb.patch
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@ -1,34 +0,0 @@
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.
Bugzilla: N/A
Upstream-status: Nak'd, supposedly replacement coming to auto-select
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 3a2ef67db6c7..4af1e7e5a611 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -396,7 +396,8 @@ 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