Linux Certif

Toute la documentation sur la certification Linux LPI

utrace_barrier_pid

NAME

utrace_barrier_pid - synchronize with simultaneous tracing callbacks

SYNOPSIS

__must_check int utrace_barrier_pid(struct pid * pid, struct utrace_engine * engine);

ARGUMENTS

pid

thread to affect

engine

engine to affect (can be detached)

DESCRIPTION

This is the same as utrace_barrier, but takes a struct pid pointer rather than a struct task_struct pointer. The caller must hold a ref on pid, but does not need to worry about the task staying valid. If it's been reaped so that pid points nowhere, then this call returns -ESRCH.