'\" t
.\"     Title: pid_alive
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Driver Basics
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "PID_ALIVE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Driver Basics"
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.SH "NAME"
pid_alive \- check that a task structure is not stale
.SH "SYNOPSIS"
.HP \w'int\ pid_alive('u
.BI "int pid_alive(const\ struct\ task_struct\ *\ " "p" ");"
.SH "ARGUMENTS"
.PP
\fIp\fR
.RS 4
Task structure to be checked\&.
.RE
.SH "DESCRIPTION"
.PP
Test if a process is not yet dead (at most zombie state) If pid_alive fails, then pointers within the task structure can be stale and must not be dereferenced\&.
.SH "RETURN"
.PP
1 if the process is alive\&. 0 otherwise\&.
.SH "COPYRIGHT"
.br