SIGUSR1           736 arch/x86/kernel/vm86_32.c 	| (1 << SIGUSR1) | (1 << SIGUSR2) | (1 << SIGIO)  | (1 << SIGURG) \
SIGUSR1           224 fs/smbfs/smbiod.c 	result = kill_pid(pid, SIGUSR1, 1);
SIGUSR1          2385 kernel/auditsc.c 		if (sig == SIGTERM || sig == SIGHUP || sig == SIGUSR1 || sig == SIGUSR2) {