linux-kernel - [tip: x86/kconfig] x86/kconfig/64: Enable popular scheduler, cgroups and namespaces options in the defconfig

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Message-ID: <174980310568.406.14415636981131609770.tip-bot2@tip-bot2>
Date: Fri, 13 Jun 2025 08:25:05 -0000
From: "tip-bot2 for Ingo Molnar" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Ingo Molnar <mingo@...nel.org>, Ard Biesheuvel <ardb@...nel.org>,
 Arnd Bergmann <arnd@...db.de>, David Woodhouse <dwmw@...zon.co.uk>,
 "H. Peter Anvin" <hpa@...or.com>, jgross@...e.com,
 Linus Torvalds <torvalds@...ux-foundation.org>,
 Masahiro Yamada <yamada.masahiro@...ionext.com>,
 Michal Marek <michal.lkml@...kovi.net>, Peter Zijlstra <peterz@...radead.org>,
 Vitaly Kuznetsov <vkuznets@...hat.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: x86/kconfig] x86/kconfig/64: Enable popular scheduler, cgroups
 and namespaces options in the defconfig

The following commit has been merged into the x86/kconfig branch of tip:

Commit-ID:     c0fa332499207d4cb5e88f2592e23ea6c9d6c7c9
Gitweb:        https://git.kernel.org/tip/c0fa332499207d4cb5e88f2592e23ea6c9d6c7c9
Author:        Ingo Molnar <mingo@...nel.org>
AuthorDate:    Thu, 15 May 2025 15:27:17 +02:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Fri, 13 Jun 2025 10:03:33 +02:00

x86/kconfig/64: Enable popular scheduler, cgroups and namespaces options in the defconfig

Since the x86 defconfig aims to be a distro kernel work-alike with
fewer drivers and a shorter build time, enable a handful of
popular scheduler and cgroups options that are typically enabled
on major Linux distributions.

The options enabled is a superset of the latest Ubuntu and Fedora
kernel debugging configs, using Ubuntu's config-6.11.0-24-generic
file, Fedora's kernel-x86_64-fedora.config and RHEL's
kernel-x86_64-rhel.config from kernel-ark.git.

Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Ard Biesheuvel <ardb@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: David Woodhouse <dwmw@...zon.co.uk>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Jürgen Groß <jgross@...e.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: Michal Marek <michal.lkml@...kovi.net>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Vitaly Kuznetsov <vkuznets@...hat.com>
Link: https://lore.kernel.org/r/20250515132719.31868-12-mingo@kernel.org
---
 arch/x86/configs/x86_64_defconfig | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 4bd3122..d9f8fae 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -2,6 +2,7 @@ CONFIG_WERROR=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_AUDIT=y
+# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BPF_SYSCALL=y
@@ -11,26 +12,45 @@ CONFIG_BPF_PRELOAD=y
 CONFIG_BPF_PRELOAD_UMD=y
 CONFIG_BPF_LSM=y
 CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_SCHED_CORE=y
+CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_IRQ_TIME_ACCOUNTING=y
 CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
 CONFIG_TASKSTATS=y
 CONFIG_TASK_DELAY_ACCT=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_PSI=y
+CONFIG_PSI_DEFAULT_DISABLED=y
 CONFIG_LOG_BUF_SHIFT=18
-CONFIG_CGROUPS=y
+CONFIG_PRINTK_INDEX=y
+CONFIG_UCLAMP_TASK=y
+CONFIG_NUMA_BALANCING=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_V1=y
 CONFIG_BLK_CGROUP=y
-CONFIG_CGROUP_SCHED=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_UCLAMP_TASK_GROUP=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_RDMA=y
+CONFIG_CGROUP_DMEM=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_HUGETLB=y
 CONFIG_CPUSETS=y
+CONFIG_CPUSETS_V1=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CGROUP_CPUACCT=y
 CONFIG_CGROUP_PERF=y
 CONFIG_CGROUP_BPF=y
 CONFIG_CGROUP_MISC=y
 CONFIG_CGROUP_DEBUG=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SYSFS_SYSCALL=y
+CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_PROFILING=y
 CONFIG_KEXEC=y
@@ -304,7 +324,6 @@ CONFIG_LIST_HARDENED=y
 CONFIG_PRINTK_TIME=y
 CONFIG_BOOT_PRINTK_DELAY=y
 CONFIG_DYNAMIC_DEBUG=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_HEADERS_INSTALL=y
 CONFIG_DEBUG_SECTION_MISMATCH=y