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hush: small optimization in run_list

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I thought gcc can detect this itself. It doesn't.

function                                             old     new   delta
run_list                                            1030    1021      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-11-08 20:26:11 +01:00
parent 5cc9bf6a21
commit 6c635d62d4
1 changed files with 8 additions and 7 deletions
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15
shell/hush.c
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@ -8004,20 +8004,21 @@ static int run_list(struct pipe *pi)
G.last_bg_pid = pi->cmds[pi->num_cmds - 1].pid;
debug_printf_exec(": cmd&: exitcode EXIT_SUCCESS\n");
/* Check pi->pi_inverted? "! sleep 1 & echo $?": bash says 1. dash and ash says 0 */
G.last_exitcode = rcode = EXIT_SUCCESS;
check_and_run_traps();
rcode = EXIT_SUCCESS;
goto check_traps;
} else {
#if ENABLE_HUSH_JOB
if (G.run_list_level == 1 && G_interactive_fd) {
/* Waits for completion, then fg's main shell */
rcode = checkjobs_and_fg_shell(pi);
debug_printf_exec(": checkjobs_and_fg_shell exitcode %d\n", rcode);
} else
#endif
{ /* This one just waits for completion */
rcode = checkjobs(pi, 0 /*(no pid to wait for)*/);
debug_printf_exec(": checkjobs exitcode %d\n", rcode);
goto check_traps;
}
#endif
/* This one just waits for completion */
rcode = checkjobs(pi, 0 /*(no pid to wait for)*/);
debug_printf_exec(": checkjobs exitcode %d\n", rcode);
check_traps:
G.last_exitcode = rcode;
check_and_run_traps();
}