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Sultan Alsawaf 5cfb51a3e7 workqueue: Affine unbound workqueues to little CPUs by default 
Although unbound workqueues are eligible to run their workers on any
CPU, the workqueue subsystem prefers scheduling workers onto the CPU
which queues them. This results in unbound workers consuming valuable
CPU time on the big and prime CPU clusters.

We can alleviate the burden of kernel housekeeping on the more important
CPUs by moving the unbound workqueues to the little CPU cluster by
default. This may also reduce power consumption, which is a plus.

Fix Warning:
kernel/workqueue.c:5765:6: warning: unused variable 'hk_flags' [-Wunused-variable]
        int hk_flags = HK_FLAG_DOMAIN | HK_FLAG_WQ;
[spak]

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
2022-11-12 11:24:10 +00:00
android ANDROID: fix up abi issue with struct snd_pcm_runtime 2022-05-18 14:50:41 +02:00
arch arm64: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selected 2022-11-12 11:24:07 +00:00
block UPSTREAM: hrtimer: Consolidate hrtimer_init() + hrtimer_init_sleeper() calls 2022-11-12 11:23:54 +00:00
certs Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-07-09 10:34:17 +05:30
crypto crypto: move Jitter RNG header include dir 2022-11-12 11:23:16 +00:00
Documentation UPSTREAM: locking/lockdep: Add explanation to lock usage rules in lockdep design doc 2022-11-12 11:23:42 +00:00
drivers drm: Reduce latency while processing atomic ioctls 2022-11-12 11:24:09 +00:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs kernel: Affine hwcomposer to big CPUs 2022-11-12 11:24:08 +00:00
include sched/rt: Change default SCHED_RR timeslice from 100 ms to 1 jiffy 2022-11-12 11:24:09 +00:00
init lto: Add Link Time Optimization support for GCC 2022-11-12 11:24:06 +00:00
ipc vm_ops: rename .split() callback to .may_split() 2022-11-12 11:21:26 +00:00
kernel workqueue: Affine unbound workqueues to little CPUs by default 2022-11-12 11:24:10 +00:00
lib scatterlist: Don't allocate sg lists using __get_free_page 2022-11-12 11:24:00 +00:00
LICENSES LICENSES: Add ISC license text 2019-01-10 17:22:01 +02:00
mm mm: kmemleak: Don't require global debug options or debugfs 2022-11-12 11:24:00 +00:00
net UPSTREAM: hrtimer: Consolidate hrtimer_init() + hrtimer_init_sleeper() calls 2022-11-12 11:23:54 +00:00
samples This is the 4.19.218 stable release 2021-11-26 15:19:33 +01:00
scripts lto: Add Link Time Optimization support for GCC 2022-11-12 11:24:06 +00:00
security selinux: Allow audit to be disabled 2022-11-12 11:19:22 +00:00
sound sound: soc: support host-less 24bit formats 2022-11-12 11:19:17 +00:00
techpack disp: msm: Remove debug print from sde_reg_write() 2022-11-12 11:24:09 +00:00
tools UPSTREAM: selftests/damon: support watermarks 2022-11-12 11:22:55 +00:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt mm: treewide: remove unused address argument from pte_alloc functions 2022-11-12 11:21:18 +00:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore .gitignore: remove dts vendor 2022-11-12 11:19:05 +00:00
.gitmodules mkdtimg: Bundle upstream python rewrite as submodule 2022-11-12 11:19:02 +00:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
AndroidKernel.mk AndroidKernel: add TARGET_PREBUILT_INT_KERNEL_IMAGE 2019-08-02 20:31:09 +08:00
build.config.aarch64 ANDROID: enable LLVM_IAS=1 for clang's integrated assembler for aarch64 2021-01-11 17:34:43 -08:00
build.config.allmodconfig ANDROID: Different fix for KABI breakage in 4.19.209 in struct sock 2021-10-11 19:44:01 +00:00
build.config.allmodconfig.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.arm ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.arm Revert "ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple" 2020-11-10 11:47:24 -08:00
build.config.common ANDROID: clang: update to 12.0.5 2021-04-19 19:40:51 +00:00
build.config.gki ANDROID: gki: Removed cf modules from gki_defconfig 2020-01-31 16:23:38 -08:00
build.config.gki_kasan ANDROID: build_config: drop CONFIG_KASAN_PANIC_ON_WARN 2021-02-15 18:29:34 +00:00
build.config.gki_kasan.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kasan.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kprobes ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki_kprobes.aarch64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki_kprobes.x86_64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki-debug.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki-debug.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki.aarch64 ANDROID: GKI: prevent removal of monitored symbols 2020-09-29 11:48:43 +01:00
build.config.gki.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.goldfish.arm ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.arm64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86_64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.x86_64 Revert "Revert "ANDROID: enable LLVM_IAS=1 for clang's integrated assembler for x86_64"" 2021-02-03 13:34:51 -08:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
gen_headers_arm64.bp net: Port samsung MPTCP modifications from SM-N986B 2022-11-12 11:19:58 +00:00
gen_headers_arm.bp net: Port samsung MPTCP modifications from SM-N986B 2022-11-12 11:19:58 +00:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
kernel_headers.py Change the subprocess argument to fix the build issue 2021-06-28 16:47:30 +05:30
MAINTAINERS BACKPORT: locking/rwsem: Remove arch specific rwsem files 2022-11-12 11:23:32 +00:00
Makefile kbuild: Increase GCC automatic inline instruction limit to 1000 for LTO 2022-11-12 11:24:07 +00:00
OWNERS ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS 2021-04-03 14:09:44 +00:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00
verity_dev_keys.x509 x86_64_cuttlefish_defconfig: enable verity cert 2018-08-28 17:15:17 +05:30

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.