From: "H. Peter Anvin" <hpa@zytor.com>
To: "Theodore Ts'o" <tytso@mit.edu>,
Chuck Lever <chuck.lever@oracle.com>,
Arnd Bergmann <arnd@arndb.de>,
Nicolas Pitre <nicolas.pitre@linaro.org>,
Dave Chinner <david@fromorbit.com>,
LKML Kernel <linux-kernel@vger.kernel.org>,
linux-arch@vger.kernel.org, joseph@codesourcery.com,
john.stultz@linaro.org, Christoph Hellwig <hch@infradead.org>,
tglx@linutronix.de, geert@linux-m68k.org, lftan@altera.com,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
xfs@oss.sgi.com,
Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: [RFC 11/32] xfs: convert to struct inode_time
Date: Mon, 02 Jun 2014 16:33:33 -0700 [thread overview]
Message-ID: <538D09CD.2080006@zytor.com> (raw)
In-Reply-To: <20140602233212.GA2060@thunk.org>
On 06/02/2014 04:32 PM, Theodore Ts'o wrote:
> On Mon, Jun 02, 2014 at 03:32:35PM -0700, H. Peter Anvin wrote:
>> On 06/02/2014 03:29 PM, Theodore Ts'o wrote:
>>>
>>> And since we are already returning (time_t) -1 in some cases, we might
>>> as well try to make things a bit more formal.
>>>
>>
>> Are we? I am not aware of *Linux* actually using that.
>
> Linux's time(2) can return (time_t) -1 and set errno to EFAULT, per
> the Posix specification:
>
> SYSCALL_DEFINE1(time, time_t __user *, tloc)
> {
> time_t i = get_seconds();
>
> if (tloc) {
> if (put_user(i,tloc))
> return -EFAULT;
> }
> force_successful_syscall_return();
> return i;
> }
>
OK, I guess I should have said... other than for -EFAULT.
I just don't know of anyone using time(2) with an argument other than NULL.
-hpa
next prev parent reply other threads:[~2014-06-02 23:36 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 20:01 [RFC 00/32] making inode time stamps y2038 ready Arnd Bergmann
2014-05-30 20:01 ` [RFC 07/32] fs/nfs: convert to struct inode_time Arnd Bergmann
2014-05-31 14:30 ` [RFC 00/32] making inode time stamps y2038 ready Vyacheslav Dubeyko
2014-06-03 12:21 ` Arnd Bergmann
2014-05-31 14:51 ` Richard Cochran
2014-05-31 15:23 ` Arnd Bergmann
2014-05-31 16:20 ` Geert Uytterhoeven
2014-05-31 18:22 ` Richard Cochran
2014-05-31 19:34 ` H. Peter Anvin
2014-06-01 4:46 ` Richard Cochran
2014-06-01 4:44 ` Richard Cochran
2014-06-02 13:52 ` Joseph S. Myers
2014-06-02 19:19 ` Arnd Bergmann
2014-06-02 19:26 ` H. Peter Anvin
2014-06-02 19:55 ` Arnd Bergmann
2014-06-02 21:57 ` H. Peter Anvin
2014-06-03 14:22 ` Arnd Bergmann
2014-06-03 14:33 ` Joseph S. Myers
2014-06-03 14:37 ` Arnd Bergmann
2014-06-03 21:38 ` Dave Chinner
2014-06-04 15:03 ` Arnd Bergmann
2014-06-04 17:30 ` Nicolas Pitre
2014-06-04 19:24 ` Arnd Bergmann
2014-06-05 0:10 ` H. Peter Anvin
2014-06-10 9:54 ` Arnd Bergmann
2014-06-02 21:02 ` Joseph S. Myers
2014-06-04 15:05 ` Arnd Bergmann
[not found] ` <8618458.1EVJCoVbkH@wuerfel>
[not found] ` <alpine.LFD.2.11.1406012121430.17310@knanqh.ubzr>
[not found] ` <4178301.j9kWdGCRLC@wuerfel>
2014-06-02 15:04 ` [RFC 11/32] xfs: convert to struct inode_time Chuck Lever
2014-06-02 15:31 ` Theodore Ts'o
2014-06-02 17:12 ` H. Peter Anvin
2014-06-02 18:50 ` Arnd Bergmann
2014-06-02 22:29 ` Theodore Ts'o
2014-06-02 22:32 ` H. Peter Anvin
2014-06-02 23:32 ` Theodore Ts'o
2014-06-02 23:33 ` H. Peter Anvin [this message]
2014-06-03 13:09 ` Roger Willcocks
2014-06-02 18:52 ` Arnd Bergmann
2014-06-02 18:58 ` Roger Willcocks
2014-06-02 19:04 ` Chuck Lever
2014-06-02 19:10 ` Arnd Bergmann
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