trace/postprocess/trace-pagealloc-postprocess.pl [136:150]:
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sub read_statline($) {
	my $pid = $_[0];
	my $statline;

	if (open(STAT, "/proc/$pid/stat")) {
		$statline = <STAT>;
		close(STAT);
	}

	if ($statline eq '') {
		$statline = "-1 (UNKNOWN_PROCESS_NAME) R 0";
	}

	return $statline;
}
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trace/postprocess/trace-vmscan-postprocess.pl [229:243]:
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sub read_statline($) {
	my $pid = $_[0];
	my $statline;

	if (open(STAT, "/proc/$pid/stat")) {
		$statline = <STAT>;
		close(STAT);
	}

	if ($statline eq '') {
		$statline = "-1 (UNKNOWN_PROCESS_NAME) R 0";
	}

	return $statline;
}
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