kernel_optimize_test

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Sergey Senozhatsky 6d0ff92059 KVM: do not shrink halt_poll_ns below grow_start [ Upstream commit ae232ea460888dc5a8b37e840c553b02521fbf18 ] grow_halt_poll_ns() ignores values between 0 and halt_poll_ns_grow_start (10000 by default). However, when we shrink halt_poll_ns we may fall way below halt_poll_ns_grow_start and endup with halt_poll_ns values that don't make a lot of sense: like 1 or 9, or 19. VCPU1 trace (halt_poll_ns_shrink equals 2): VCPU1 grow 10000 VCPU1 shrink 5000 VCPU1 shrink 2500 VCPU1 shrink 1250 VCPU1 shrink 625 VCPU1 shrink 312 VCPU1 shrink 156 VCPU1 shrink 78 VCPU1 shrink 39 VCPU1 shrink 19 VCPU1 shrink 9 VCPU1 shrink 4 Mirror what grow_halt_poll_ns() does and set halt_poll_ns to 0 as soon as new shrink-ed halt_poll_ns value falls below halt_poll_ns_grow_start. Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210902031100.252080-1-senozhatsky@chromium.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-10-09 14:40:58 +02:00
arch	sparc64: fix pci_iounmap() when CONFIG_PCI is not set	2021-10-09 14:40:56 +02:00
block	Revert "block, bfq: honor already-setup queue merges"	2021-10-06 15:55:56 +02:00
certs	certs: Trigger creation of RSA module signing key if it's not an RSA key	2021-09-15 09:50:29 +02:00
crypto	crypto: sm2 - fix a memory leak in sm2	2021-07-14 16:56:06 +02:00
Documentation	dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation	2021-09-22 12:27:59 +02:00
drivers	irqchip/gic: Work around broken Renesas integration	2021-10-09 14:40:57 +02:00
fs	smb3: correct smb3 ACL security descriptor	2021-10-09 14:40:57 +02:00
include	net: mdio: introduce a shutdown method to mdio device drivers	2021-10-09 14:40:56 +02:00
init	sched/core: Initialize the idle task with preemption disabled	2021-07-14 16:55:50 +02:00
ipc	ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry	2021-05-26 12:06:54 +02:00
kernel	bpf: Exempt CAP_BPF from checks against bpf_jit_limit	2021-10-06 15:55:55 +02:00
lib	treewide: Change list_sort to use const pointers	2021-09-30 10:11:04 +02:00
LICENSES
mm	mm: don't allow oversized kvmalloc() calls	2021-10-06 15:56:03 +02:00
net	netfilter: nf_tables: Fix oversized kvmalloc() calls	2021-10-06 15:56:04 +02:00
samples	samples: bpf: Fix tracex7 error raised on the missing argument	2021-09-18 13:40:23 +02:00
scripts	gen_compile_commands: fix missing 'sys' package	2021-09-22 12:27:58 +02:00
security	Smack: Fix wrong semantics in smk_access_entry()	2021-09-18 13:40:18 +02:00
sound	ASoC: dapm: use component prefix when checking widget names	2021-10-06 15:56:02 +02:00
tools	selftests: KVM: Align SMCCC call with the spec in steal_time	2021-10-09 14:40:57 +02:00
usr
virt	KVM: do not shrink halt_poll_ns below grow_start	2021-10-09 14:40:58 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore	kbuild: generate Module.symvers only when vmlinux exists	2021-05-19 10:12:59 +02:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS	f2fs: move ioctl interface definitions to separated file	2021-05-19 10:13:00 +02:00
Makefile	Linux 5.10.71	2021-10-06 15:56:04 +02:00
README

README

Linux kernel
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There are several guides for kernel developers and users. These guides can
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There are various text files in the Documentation/ subdirectory,
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Please read the Documentation/process/changes.rst file, as it contains the
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