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From: Oleg Nesterov <oleg@redhat.com>
To: Christian Brauner <christian@brauner.io>
Cc: linux-kernel@vger.kernel.org, ebiederm@xmission.com,
	gregkh@linuxfoundation.org, mingo@kernel.org,
	james.morris@microsoft.com, keescook@chromium.org,
	peterz@infradead.org, sds@tycho.nsa.gov, viro@zeniv.linux.org.uk,
	akpm@linux-foundation.org
Subject: Re: [PATCH v1 06/20] signal: drop else branch in do_signal_stop()
Date: Tue, 29 May 2018 16:30:40 +0200	[thread overview]
Message-ID: <20180529143039.GA1802@redhat.com> (raw)
In-Reply-To: <20180528215355.16119-7-christian@brauner.io>

I am busy now, can't review, just picked a random patch from this series...

On 05/28, Christian Brauner wrote:
> do_signal_stop() already returns in the if branch so there's no need to
> keep the else branch around.

OK, but for what???

Do you think this change makes the code more readable? more clean? or what?

I do not really care but to me these "if/else" branches make this code more
symmetrical, so I don't understand the purpose.



> Signed-off-by: Christian Brauner <christian@brauner.io>
> ---
> v0->v1:
> * patch unchanged
> ---
>  kernel/signal.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/kernel/signal.c b/kernel/signal.c
> index a628b56415e6..d1914439f144 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -2214,14 +2214,14 @@ static bool do_signal_stop(int signr)
>  		/* Now we don't run again until woken by SIGCONT or SIGKILL */
>  		freezable_schedule();
>  		return true;
> -	} else {
> -		/*
> -		 * While ptraced, group stop is handled by STOP trap.
> -		 * Schedule it and let the caller deal with it.
> -		 */
> -		task_set_jobctl_pending(current, JOBCTL_TRAP_STOP);
> -		return false;
>  	}
> +
> +	/*
> +	 * While ptraced, group stop is handled by STOP trap.
> +	 * Schedule it and let the caller deal with it.
> +	 */
> +	task_set_jobctl_pending(current, JOBCTL_TRAP_STOP);
> +	return false;
>  }
>  
>  /**
> -- 
> 2.17.0
> 

  reply	other threads:[~2018-05-29 14:30 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-28 21:53 [PATCH v1 00/20] signal: refactor some functions Christian Brauner
2018-05-28 21:53 ` [PATCH v1 01/20] signal: make force_sigsegv() void Christian Brauner
2018-05-28 21:53 ` [PATCH v1 02/20] signal: make kill_as_cred_perm() return bool Christian Brauner
2018-05-28 21:53 ` [PATCH v1 03/20] signal: make may_ptrace_stop() " Christian Brauner
2018-06-01  6:13   ` [lkp-robot] [signal] 1c6c57b1ea: WARNING:at_kernel/events/core.c:#perf_swevent_add kernel test robot
2018-05-28 21:53 ` [PATCH v1 04/20] signal: add copy_pending() helper Christian Brauner
2018-05-29 12:24   ` Eric W. Biederman
2018-05-29 12:41     ` Christian Brauner
2018-05-29 13:44       ` Eric W. Biederman
2018-05-29 13:55         ` Christian Brauner
2018-05-28 21:53 ` [PATCH v1 05/20] signal: flatten do_send_sig_info() Christian Brauner
2018-05-29 12:28   ` Eric W. Biederman
2018-05-29 12:38     ` Christian Brauner
2018-05-30 20:31       ` Eric W. Biederman
2018-05-28 21:53 ` [PATCH v1 06/20] signal: drop else branch in do_signal_stop() Christian Brauner
2018-05-29 14:30   ` Oleg Nesterov [this message]
2018-05-29 15:06     ` Christian Brauner
2018-05-28 21:53 ` [PATCH v1 07/20] signal: make do_sigpending() void Christian Brauner
2018-05-28 21:53 ` [PATCH v1 08/20] signal: simplify rt_sigaction() Christian Brauner
2018-05-28 21:53 ` [PATCH v1 09/20] signal: make kill_ok_by_cred() return bool Christian Brauner
2018-05-28 21:53 ` [PATCH v1 10/20] signal: make sig_handler_ignored() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 11/20] signal: make sig_task_ignored() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 12/20] signal: make sig_ignored() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 13/20] signal: make has_pending_signals() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 14/20] signal: make recalc_sigpending_tsk() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 15/20] signal: make unhandled_signal() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 16/20] signal: make flush_sigqueue_mask() void Christian Brauner
2018-05-28 21:53 ` [PATCH v1 17/20] signal: make wants_signal() return bool Christian Brauner
2018-05-28 21:53 ` [PATCH v1 18/20] signal: make legacy_queue() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 19/20] signal: make security_task_kill() " Christian Brauner
2018-05-28 21:53 ` [PATCH v1 20/20] signal: make get_signal() " Christian Brauner

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