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From: Andreas Schwab <schwab@linux-m68k.org>
To: Adhemerval Zanella via Libc-alpha <libc-alpha@sourceware.org>
Subject: Re: [PATCH 2/8] linux: Use __libc_single_threaded on fork
Date: Tue, 02 Feb 2021 16:15:34 +0100	[thread overview]
Message-ID: <87tuqutsa1.fsf@igel.home> (raw)
In-Reply-To: <20210202151134.2123748-2-adhemerval.zanella@linaro.org> (Adhemerval Zanella via Libc-alpha's message of "Tue, 2 Feb 2021 12:11:28 -0300")

On Feb 02 2021, Adhemerval Zanella via Libc-alpha wrote:

> @@ -54,7 +55,7 @@ __libc_fork (void)
>       handlers in the single-thread case, to make fork safer to use in
>       signal handlers.  POSIX requires that fork is async-signal-safe,
>       but our current fork implementation is not.  */
> -  bool multiple_threads = THREAD_GETMEM (THREAD_SELF, header.multiple_threads);
> +  bool multiple_threads = __libc_single_threaded;

That looks backwards.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

  reply	other threads:[~2021-02-02 15:15 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-02 15:11 [PATCH 1/8] posix: Consolidate register-atfork Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 2/8] linux: Use __libc_single_threaded on fork Adhemerval Zanella
2021-02-02 15:15   ` Andreas Schwab [this message]
2021-02-02 16:40     ` Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 3/8] posix: Consolidate fork implementation Adhemerval Zanella
2021-03-09 10:58   ` Florian Weimer
2021-03-10 17:07     ` Adhemerval Zanella
2021-03-11 13:56   ` Andreas Schwab
2021-03-11 13:59     ` Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 4/8] nptl: Move fork into libc Adhemerval Zanella
2021-03-08 13:42   ` Florian Weimer
2021-03-10 17:08     ` Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 5/8] posix: Do not clobber errno by atfork handlers Adhemerval Zanella
2021-03-09 11:01   ` Florian Weimer
2021-03-10 20:10     ` Adhemerval Zanella
2021-03-11 13:25       ` Florian Weimer
2021-03-11 14:07         ` Adhemerval Zanella
2021-03-11 14:22           ` Andreas Schwab
2021-03-11 14:25             ` Florian Weimer
2021-03-11 15:29               ` Adhemerval Zanella
2021-03-11 15:32                 ` Florian Weimer
2021-03-11 17:25                   ` Adhemerval Zanella
2021-03-11 19:23                     ` Florian Weimer
2021-03-11 19:30                       ` Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 6/8] Consolidate pthread_atfork Adhemerval Zanella
2021-03-09 11:09   ` Florian Weimer
2021-03-10 20:15     ` Adhemerval Zanella
2021-02-02 15:11 ` [PATCH 7/8] support: Add xpthread_kill Adhemerval Zanella
2021-03-08 12:13   ` Florian Weimer
2021-02-02 15:11 ` [PATCH 8/8] posix: Add _Fork [BZ #4737] Adhemerval Zanella
2021-02-02 15:48   ` Andreas Schwab
2021-02-02 18:22   ` Joseph Myers
2021-02-11 15:26   ` [PATCH v2] " Adhemerval Zanella
2021-02-11 16:21     ` Andreas Schwab
2021-02-11 17:10       ` Adhemerval Zanella
2021-02-11 17:33         ` Andreas Schwab
2021-02-11 17:36           ` Adhemerval Zanella
2021-03-08 13:04 ` [PATCH 1/8] posix: Consolidate register-atfork Florian Weimer

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