---
name: "relay_hotcpu_callback"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/relay_hotcpu_callback"
---

# relay\_hotcpu\_callback(9)

CPU hotplug callback

## NAME

relay\_hotcpu\_callback - CPU hotplug callback

## SYNOPSIS

**int relay\_hotcpu\_callback(struct notifier\_block \*** *nb***, unsigned long** *action***, void \*** *hcpu***);**

## ARGUMENTS

*nb*

notifier block

*action*

hotplug action to take

*hcpu*

CPU number

## DESCRIPTION

Returns the success/failure of the operation. (**NOTIFY\_OK**, **NOTIFY\_BAD**)

## COPYRIGHT