KFunc bpf_cpumask_test_and_clear_cpu

v6.3

Atomically test and clear a CPU in a BPF CPU-mask.

Definition

cpu: The CPU being cleared and queried for. cpumask: The BPF CPU-mask being cleared and queried for containing a CPU.

Return: * true - cpu is set in the CPU-mask * false - cpu was not set in the CPU-mask, or cpu is invalid.

bool bpf_cpumask_test_and_clear_cpu(u32 cpu, struct bpf_cpumask *cpumask)

Usage

Docs could be improved

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

Program types

The following program types can make use of this kfunc:

• BPF_PROG_TYPE_LSM
• BPF_PROG_TYPE_STRUCT_OPS
• BPF_PROG_TYPE_TRACING

Example

Docs could be improved

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