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From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Arnd Bergmann <arnd@arndb.de>, y2038@lists.linaro.org
Cc: Deepa Dinamani <deepa.kernel@gmail.com>,
	linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [Y2038] [PATCH 02/23] y2038: add __kernel_old_timespec and __kernel_old_time_t
Date: Wed, 20 Nov 2019 22:30:18 +0000	[thread overview]
Message-ID: <a5f530323b66cd8c0055c5e642ef4eb035c53808.camel@codethink.co.uk> (raw)
In-Reply-To: <20191108210824.1534248-2-arnd@arndb.de>

On Fri, 2019-11-08 at 22:07 +0100, Arnd Bergmann wrote:
> The 'struct timespec' definition can no longer be part of the uapi headers
> because it conflicts with a a now incompatible libc definition. Also,
> we really want to remove it in order to prevent new uses from creeping in.
> 
> The same namespace conflict exists with time_t, which should also be
> removed. __kernel_time_t could be used safely, but adding 'old' in the
> name makes it clearer that this should not be used for new interfaces.
> 
> Add a replacement __kernel_old_timespec structure and __kernel_old_time_t
> along the lines of __kernel_old_timeval.
[...]
> --- a/include/uapi/linux/time_types.h
> +++ b/include/uapi/linux/time_types.h
> @@ -28,6 +28,11 @@ struct __kernel_old_timeval {
>  };
>  #endif
>  
> +struct __kernel_old_timespec {
> +	__kernel_time_t	tv_sec;			/* seconds */

Should this be __kernel_old_time_t for consistency?

Ben.

> +	long		tv_nsec;		/* nanoseconds */
> +};
> +
>  struct __kernel_sock_timeval {
>  	__s64 tv_sec;
>  	__s64 tv_usec;
-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom


  parent reply	other threads:[~2019-11-20 22:30 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08 21:02 [PATCH 00/23] y2038 cleanups Arnd Bergmann
2019-11-08 21:07 ` [PATCH 01/23] y2038: remove CONFIG_64BIT_TIME Arnd Bergmann
2019-11-20 22:28   ` [Y2038] " Ben Hutchings
2019-11-20 22:58     ` Dmitry Safonov
2019-11-08 21:07 ` [PATCH 02/23] y2038: add __kernel_old_timespec and __kernel_old_time_t Arnd Bergmann
2019-11-09 19:02   ` Deepa Dinamani
2019-11-20 22:30   ` Ben Hutchings [this message]
2019-11-21 14:17     ` [Y2038] " Arnd Bergmann
2019-11-08 21:07 ` [PATCH 03/23] y2038: vdso: change timeval to __kernel_old_timeval Arnd Bergmann
2019-11-13 21:56   ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 04/23] y2038: vdso: change timespec to __kernel_old_timespec Arnd Bergmann
2019-11-08 21:07 ` [PATCH 05/23] y2038: vdso: change time_t to __kernel_old_time_t Arnd Bergmann
2019-11-13 21:57   ` Thomas Gleixner
2019-11-08 21:07 ` [PATCH 06/23] y2038: vdso: nds32: open-code timespec_add_ns() Arnd Bergmann
2019-11-08 21:07 ` [PATCH 07/23] y2038: vdso: powerpc: avoid timespec references Arnd Bergmann
2019-11-20 22:43   ` [Y2038] " Ben Hutchings
2019-11-21 14:23     ` Arnd Bergmann
2019-11-21 16:25       ` Christophe Leroy
2019-11-27 11:03         ` Arnd Bergmann
2019-12-02 12:55           ` Christophe Leroy
2019-12-02 14:03             ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 08/23] y2038: ipc: remove __kernel_time_t reference from headers Arnd Bergmann
2019-11-20 22:49   ` [Y2038] " Ben Hutchings
2019-11-21 14:28     ` Arnd Bergmann
2019-11-08 21:07 ` [PATCH 09/23] y2038: stat: avoid 'time_t' in 'struct stat' Arnd Bergmann
2019-11-08 21:12 ` [PATCH 10/23] y2038: uapi: change __kernel_time_t to __kernel_old_time_t Arnd Bergmann
2019-11-09 19:03   ` Deepa Dinamani
2019-11-11 12:38   ` Christian Brauner
2019-11-08 21:12 ` [PATCH 11/23] y2038: rusage: use __kernel_old_timeval Arnd Bergmann
2019-11-12 21:09   ` Cyrill Gorcunov
2019-11-13 10:02     ` Arnd Bergmann
2019-11-13 17:22       ` Cyrill Gorcunov
2019-11-14  0:38       ` Christian Brauner
2019-11-14 10:18         ` Arnd Bergmann
2019-11-14 10:23           ` Christian Brauner
2019-11-08 21:12 ` [PATCH 12/23] y2038: syscalls: change remaining timeval to __kernel_old_timeval Arnd Bergmann
2019-11-11 12:44   ` Christian Brauner
2019-11-13 22:39   ` Rafael J. Wysocki
2019-11-08 21:12 ` [PATCH 13/23] y2038: socket: remove timespec reference in timestamping Arnd Bergmann
2019-11-09 19:03   ` Deepa Dinamani
2019-11-11 20:24   ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 14/23] y2038: make ns_to_compat_timeval use __kernel_old_timeval Arnd Bergmann
2019-11-08 21:12 ` [PATCH 15/23] y2038: elfcore: Use __kernel_old_timeval for process times Arnd Bergmann
2019-11-08 21:12 ` [PATCH 16/23] y2038: timerfd: Use timespec64 internally Arnd Bergmann
2019-11-13 21:49   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 17/23] y2038: time: avoid timespec usage in settimeofday() Arnd Bergmann
2019-11-13 21:53   ` Thomas Gleixner
2019-11-14 11:06     ` Arnd Bergmann
2019-11-14 14:04       ` Thomas Gleixner
2019-11-14 14:35         ` Arnd Bergmann
2019-11-14 23:01   ` Abel Vesa
2019-11-15  7:58     ` Arnd Bergmann
2019-11-15 10:27       ` Rasmus Villemoes
2019-11-15 13:50         ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 18/23] y2038: itimer: compat handling to itimer.c Arnd Bergmann
2019-11-13 21:54   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 19/23] y2038: use compat_{get,set}_itimer on alpha Arnd Bergmann
2019-12-02 13:13   ` Guenter Roeck
2019-11-08 21:12 ` [PATCH 20/23] y2038: move itimer reset into itimer.c Arnd Bergmann
2019-11-09 13:43   ` Ondrej Mosnacek
2019-11-09 21:02     ` Arnd Bergmann
2019-11-09 23:07       ` Ondrej Mosnacek
2019-11-11 10:57         ` Arnd Bergmann
2019-11-14  8:51           ` Ondrej Mosnacek
2019-11-14 10:51             ` Thomas Gleixner
2019-11-13 22:03   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 21/23] y2038: itimer: change implementation to timespec64 Arnd Bergmann
2019-11-13 22:28   ` Thomas Gleixner
2019-11-14  2:06     ` Steven Rostedt
2019-11-14 10:48       ` Thomas Gleixner
2019-11-14 10:52       ` Arnd Bergmann
2019-11-14 10:51     ` Arnd Bergmann
2019-11-14 10:57       ` Thomas Gleixner
2019-11-21 16:52   ` [Y2038] " Ben Hutchings
2019-11-25 20:26     ` Arnd Bergmann
2019-11-08 21:12 ` [PATCH 22/23] [RFC] y2038: itimer: use ktime_t internally Arnd Bergmann
2019-11-13 22:30   ` Thomas Gleixner
2019-11-08 21:12 ` [PATCH 23/23] y2038: allow disabling time32 system calls Arnd Bergmann
2019-11-11 12:31   ` Christian Brauner
2019-11-13 21:40 ` [PATCH 00/23] y2038 cleanups Arnd Bergmann

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