From: David Laight <David.Laight@ACULAB.COM>
To: 'Oleg Nesterov' <oleg@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Cc: Petr Skocik <pskocik@gmail.com>,
Kees Cook <keescook@chromium.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
"Marco Elver" <elver@google.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] signal: Fix the error return of kill -1
Date: Tue, 15 Aug 2023 14:47:07 +0000 [thread overview]
Message-ID: <3b14ae8091e3403bbc4ef1bee6dcf4f6@AcuMS.aculab.com> (raw)
In-Reply-To: <20230814154351.GA4203@redhat.com>
From: Oleg Nesterov
> Sent: 14 August 2023 16:44
...
> Even simpler
>
> } else {
> struct task_struct * p;
> bool success = false;
> int err = -ESRCH;
int err;
ret = -ESRCH;
>
> for_each_process(p) {
> if (task_pid_vnr(p) > 1 &&
> !same_thread_group(p, current)) {
> err = group_send_sig_info(sig, info, p,
> PIDTYPE_MAX);
> success |= !err;
> }
> }
> ret = success ? 0 : err;
> }
or maybe even:
} else {
struct task_struct * p;
int err;
ret = -ESRCH;
for_each_process(p) {
if (task_pid_vnr(p) > 1 &&
!same_thread_group(p, current)) {
err = group_send_sig_info(sig, info, p,
PIDTYPE_MAX);
if (ret)
ret = err;
}
}
}
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2023-08-15 14:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-22 16:12 [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Petr Skocik
2022-11-22 16:12 ` [PATCH 1/1] Fix kill(-1,s) returning 0 on 0 kills Petr Skocik
2022-11-23 10:30 ` Oleg Nesterov
2022-11-23 11:20 ` Oleg Nesterov
2022-11-23 11:27 ` Petr Skocik
2022-11-23 11:56 ` Oleg Nesterov
2022-11-22 17:15 ` [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Kees Cook
2022-11-22 23:01 ` Petr Skocik
2023-08-09 12:27 ` Petr Skocik
2023-08-10 16:16 ` Eric W. Biederman
2023-08-10 21:30 ` Petr Skocik
2023-08-11 21:25 ` Eric W. Biederman
2023-08-11 22:16 ` [PATCH] signal: Fix the error return of kill -1 Eric W. Biederman
2023-08-14 14:06 ` Oleg Nesterov
2023-08-14 15:43 ` Oleg Nesterov
2023-08-15 14:47 ` David Laight [this message]
2023-08-15 15:11 ` Oleg Nesterov
2023-08-16 20:32 ` Eric W. Biederman
2023-08-16 21:06 ` Oleg Nesterov
2023-08-17 2:33 ` Eric W. Biederman
2023-08-17 4:37 ` Eric W. Biederman
2023-08-17 15:47 ` [PATCH] __kill_pgrp_info: simplify the calculation of return value Oleg Nesterov
2023-08-11 23:37 ` [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Petr Skocik
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