PID_ALIVE

Section: Driver Basics (9)
Updated: February 2011
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NAME

pid_alive - check that a task structure is not stale  

SYNOPSIS

int pid_alive(struct task_struct * p);
 

ARGUMENTS

p

Task structure to be checked.
 

DESCRIPTION

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.  

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