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Cpuhp_setup_state_nocalls_cpuslocked

Webcpuhp_setup/remove_state[_nocalls]() call cpus_read_lock() as well, which is possible in the current implementation but prevents converting the hotplug locking to a percpu rwsem. … WebApr 20, 2024 · hwtracing/coresight-etm4x: Use cpuhp_setup_state_nocalls_cpuslocked() etm_probe4() holds get_online_cpus() while invoking cpuhp_setup_state_nocalls(). …

include/linux/cpuhotplug.h - pub/scm/linux/kernel/git/stable/linux ...

WebAug 23, 2024 · Enabling cPHulk. First, log into WHM as the root user. Next, type Security in the search box, then click the Security Center link. On the Security Center page, click the … Web这是cpuhp所包含的一个动作. 你体会到了cpuhp 设计的精妙了吗 ? * / static int cpufreq_online (unsigned int cpu) { / * * 下面给这个policy赋值有两个地方. 这涉及到了 BP 和 AP. * 要弄懂这个policy 你需要先明白 cpufreq_policy 与 cpus的关系. * 一般来说. elisabeth rother https://jorgeromerofoto.com

[tip:smp/hotplug] cpu/hotplug: Provide …

WebJul 28, 2024 · Overview. This interface allows you to configure cPHulk, a service that provides protection for your server against brute force attacks. A brute force attack uses … WebOct 27, 2024 · From: Greg Kroah-Hartman <> Subject [PATCH 5.8 228/633] coresight: etm4x: Fix etm4_count race by moving cpuhp callbacks to init: Date: Tue, 27 Oct 2024 14:49:31 +0100 Web+int __cpuhp_setup_state_cpuslocked(enum cpuhp_state state, const char *name, + bool invoke, + int (*startup)(unsigned int cpu), + int (*teardown)(unsigned int cpu), + bool … elisabeth roth

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Category:cPHulk Brute Force Protection - Version 68 Documentation

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Cpuhp_setup_state_nocalls_cpuslocked

Intel 13th-Gen Processors: What to Know about Raptor Lake - HP

Web668ba0ddac73699c621fc666e047d4d46e6f48e8 patches.rt; 0401-Add-the-hotplug-rework-including-all-its-side-stories.patch Web* Same as @cpuhp_setup_state except that no calls are executed are invoked * during installation of this callback. NOP if SMP=n or HOTPLUG_CPU=n. */ static inline int …

Cpuhp_setup_state_nocalls_cpuslocked

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Web/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __CPUHOTPLUG_H: #define __CPUHOTPLUG_H: #include * CPU-up CPU-down * * BP AP BP AP * * OFFLINE OFFLINE ... Webcpuhp_setup_state_nocalls() invokes get_online_cpus() as well. This is correct, but prevents the conversion of the hotplug locking to a percpu rwsem. Use …

WebApr 20, 2024 · hwtracing/coresight-etm4x: Use cpuhp_setup_state_nocalls_cpuslocked() etm_probe4() holds get_online_cpus() while invoking cpuhp_setup_state_nocalls(). cpuhp_setup_state_nocalls() invokes get_online_cpus() as well. This is correct, but prevents the conversion of the hotplug locking to a percpu rwsem. Use … Webcpuhp_store_callbacks() which prevents multiple registrations of callbacks for a given state and due to this race, it returns -EBUSY leading to ETM probe failures like below.

WebJul 28, 2024 · @@ -158,100 +159,480 @@ at state ``CPUHP_OFFLINE``. This includes: * Once all services are migrated, kernel calls an arch specific routine ``__cpu_disable()`` to perform arch specific cleanup. ... This-might be important to certain drivers which need to perform some kind of setup WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 0/2] cpufreq: Specify the default governor on command line @ 2024-06-15 16:55 Quentin Perret 2024-06-15 16:55 ` [PATCH 1/2] cpufreq: Register governors at core_initcall Quentin Perret 2024-06-15 16:55 ` [PATCH 2/2] cpufreq: Specify default governor on command line Quentin …

Webreturn__cpuhp_setup_state(state, name, true, startup, teardown, false); * cpuhp_setup_state_cpuslocked - Setup hotplug state callbacks with calling. * …

WebCf. __cpuhp_setup_state_cpuslocked() documentation: Return: On success: Positive state number if @state is CPUHP_AP_ONLINE_DYN; 0 for all other states Indeed, the following: cpuhp_remove_state(CPUHP_AP_ONLINE_DYN); removes the first dynamic states added to the cpuhp state machine. Patches were tested as: - … forage anzWebCheck our new training course. Real-Time Linux with PREEMPT_RT. Check our new training course. with Creative Commons CC-BY-SA forage arnouldWebThe state must have been earlier marked as multi-instance by cpuhp_setup_state_multi. int cpuhp_state_add_instance_nocalls (enum cpuhp_state state, struct hlist_node * … forage ashurst