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Helper function bpf_this_cpu_ptr

v5.10

Definition

Copyright (c) 2015 The Libbpf Authors. All rights reserved.

Take a pointer to a percpu ksym, percpu_ptr, and return a pointer to the percpu kernel variable on this cpu. See the description of 'ksym' in bpf_per_cpu_ptr().

bpf_this_cpu_ptr() has the same semantic as this_cpu_ptr() in the kernel. Different from bpf_per_cpu_ptr(), it would never return NULL.

Returns

A pointer pointing to the kernel percpu variable on this cpu.

static void *(* const bpf_this_cpu_ptr)(const void *percpu_ptr) = (void *) 154;

Usage

Docs could be improved

This part of the docs is incomplete, contributions are very welcome

Program types

This helper call can be used in the following program types:

Example

Docs could be improved

This part of the docs is incomplete, contributions are very welcome