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Filename Latest commit message Latest commit date
Valentin Schneider 2137d07adb sched/topology: Don't set SD_BALANCE_WAKE on cpuset domain relax 
[ Upstream commit 9ae7ab20b4835dbea0e5fc6a5c70171dc354a72e ]

As pointed out in commit

  182a85f8a1 ("sched: Disable wakeup balancing")

SD_BALANCE_WAKE is a tad too aggressive, and is usually left unset.

However, it turns out cpuset domain relaxation will unconditionally set it
on domains below the relaxation level. This made sense back when
SD_BALANCE_WAKE was set unconditionally, but it no longer is the case.

We can improve things slightly by noticing that set_domain_attribute() is
always called after sd_init(), so rather than setting flags we can rely on
whatever sd_init() is doing and only clear certain flags when above the
relaxation level.

While at it, slightly clean up the function and flip the relax level
check to be more human readable.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mingo@kernel.org
Cc: vincent.guittot@linaro.org
Cc: juri.lelli@redhat.com
Cc: seto.hidetoshi@jp.fujitsu.com
Cc: qperret@google.com
Cc: Dietmar.Eggemann@arm.com
Cc: morten.rasmussen@arm.com
Link: https://lkml.kernel.org/r/20191014164408.32596-1-valentin.schneider@arm.com
Stable-dep-of: a1fd0b9d751f ("sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-16 13:28:40 +02:00
arch x86/insn: Fix PUSH instruction in x86 instruction decoder opcode map 2024-06-16 13:28:39 +02:00
block block: prevent division by zero in blk_rq_stat_sum() 2024-04-13 12:51:38 +02:00
certs
crypto Revert "crypto: api - Disallow identical driver names" 2024-05-02 16:18:35 +02:00
Documentation ASoC: dt-bindings: rt5645: add cbj sleeve gpio property 2024-06-16 13:28:31 +02:00
drivers RDMA/IPoIB: Fix format truncation compilation errors 2024-06-16 13:28:40 +02:00
fs ext4: avoid excessive credit estimate in ext4_tmpfile() 2024-06-16 13:28:40 +02:00
include ASoC: tracing: Export SND_SOC_DAPM_DIR_OUT to its value 2024-06-16 13:28:39 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-13 12:51:36 +02:00
ipc
kernel sched/topology: Don't set SD_BALANCE_WAKE on cpuset domain relax 2024-06-16 13:28:40 +02:00
lib dyndbg: fix old BUG_ON in >control parser 2024-05-17 11:43:55 +02:00
LICENSES
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-13 12:51:40 +02:00
net af_packet: do not call packet_read_pending() from tpacket_destruct_skb() 2024-06-16 13:28:40 +02:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
scripts kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1 2024-04-13 12:51:26 +02:00
security smack: Handle SMACK64TRANSMUTE in smack_inode_setsecurity() 2024-04-13 12:51:22 +02:00
sound ASoC: da7219-aad: fix usage of device_get_named_child_node() 2024-06-16 13:28:31 +02:00
tools selftests/kcmp: remove unused open mode 2024-06-16 13:28:40 +02:00
usr
virt KVM: async_pf: Cleanup kvm_setup_async_pf() 2024-05-02 16:18:32 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.277 2024-05-25 16:17:18 +02:00
README

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.

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.