cpuhp_state...ance_nocalls(9)
π cpuhp_state_remove_instance_nocalls β the kernel API manual, but make it make sense β¨
okay so bestie, this is a page from the Kernel API Manual and it's about one very specific little function: cpuhp_state_remove_instance_nocalls. the name is a whole mouthful, i know, but stay with me π«Ά
πΈ NAME πΈ
cpuhp_state_remove_instance_nocalls β removes a hotplug instance from a state without invoking the teardown callback π
like, it's giving "we're breaking up but we're not doing the dramatic goodbye speech." no callback, no tears, just vibes π
β¨ SYNOPSIS β¨
int cpuhp_state_remove_instance_nocalls (enum cpuhp_state state , struct
hlist_node *node );
that's the whole signature, character for character, no cap π₯
π¦ ARGUMENTS π¦
stateβ the state from which the instance gets removed. yes queen, tell it exactly which state we're leaving πnodeβ the node for this individual state. it's the specific one, not a group thing, okay? π
π DESCRIPTION π
Removes the instance without invoking the teardown callback.
that's literally the whole bit. it does the removal, but skips the teardown callback entirely β hence the _nocalls in the name, iykyk πβ¨
π SEE ALSO π
first off, the kernel file lives at ./include/linux/cpuhotplug.h β go look, it's iconic β
and then the whole friend group of related calls, all of them, right here:
cpuhp_setup_state(9)cpuhp_setup_state_cpuslocked(9)cpuhp_setup_state_nocalls(9)cpuhp_setup_state_nocalls_cpuslocked(9)cpuhp_setup_state_multi(9)cpuhp_state_add_instance(9)cpuhp_state_add_instance_nocalls(9)cpuhp_state_add_instance_nocalls_cpuslocked(9)cpuhp_remove_state(9)cpuhp_remove_state_nocalls(9)cpuhp_remove_state_nocalls_cpuslocked(9)cpuhp_remove_multi_state(9)cpuhp_state_remove_instance(9)
ngl bestie, that's a lot of SEE ALSOs, but every single one of them is in the original so we are NOT skipping any π«Άπ
π sign-off π
this little masterpiece ships from ./include/linux, and it's dated October 2026 β so yes, it's from the future and it's still serving πβ¨ slay, go remove those instances, periodt π
πΈ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms