1DO_SIGNAL_STOP(9)                Driver Basics               DO_SIGNAL_STOP(9)
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NAME

6       do_signal_stop - handle group stop for SIGSTOP and other stop signals
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SYNOPSIS

9       bool do_signal_stop(int signr);
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ARGUMENTS

12       signr
13           signr causing group stop if initiating
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DESCRIPTION

16       If JOBCTL_STOP_PENDING is not set yet, initiate group stop with signr
17       and participate in it. If already set, participate in the existing
18       group stop. If participated in a group stop (and thus slept), true is
19       returned with siglock released.
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21       If ptraced, this function doesn't handle stop itself. Instead,
22       JOBCTL_TRAP_STOP is scheduled and false is returned with siglock
23       untouched. The caller must ensure that INTERRUPT trap handling takes
24       places afterwards.
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CONTEXT

27       Must be called with current->sighand->siglock held, which is released
28       on true return.
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RETURNS

31       false if group stop is already cancelled or ptrace trap is scheduled.
32       true if participated in group stop.
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35Kernel Hackers Manual 3.10         June 2019                 DO_SIGNAL_STOP(9)
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