wait_task_stopped man page on OpenSuSE

wait_task_stopped man page on OpenSuSE

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WAIT_TASK_STOPPED(9)		 Driver Basics		  WAIT_TASK_STOPPED(9)

NAME
       wait_task_stopped - Wait for TASK_STOPPED or TASK_TRACED

SYNOPSIS
       int wait_task_stopped(struct wait_opts * wo, int ptrace,
			     struct task_struct * p);

ARGUMENTS
       wo
	   wait options

       ptrace
	   is the wait for ptrace

       p
	   task to wait for

DESCRIPTION
       Handle sys_wait4 work for p in state TASK_STOPPED or TASK_TRACED.

CONTEXT
       read_lock(tasklist_lock), which is released if return value is
       non-zero. Also, grabs and releases p->sighand->siglock.

RETURNS
       0 if wait condition didn't exist and search for other wait conditions
       should continue. Non-zero return, -errno on failure and p's pid on
       success, implies that tasklist_lock is released and wait condition
       search should terminate.

COPYRIGHT
Kernel Hackers Manual 3.11	 November 2013		  WAIT_TASK_STOPPED(9)

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