Messages in this thread | | | Date | Mon, 27 Oct 2014 14:54:38 -0700 | Subject | Re: [PATCH RFC 01/12] time: Rename mktime() to mktime_unsafe() | From | John Stultz <> |
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On Mon, Oct 27, 2014 at 2:38 PM, Thomas Gleixner <tglx@linutronix.de> wrote: > On Mon, 27 Oct 2014, pang.xunlei wrote: > >> The kernel uses 32-bit signed value(time_t) for seconds since 1970-01-01:00:00:00, thus it >> will overflow at 2038-01-19 03:14:08 on 32-bit systems. We call this "2038 safety" issue. >> >> Currently, mktime() deals with "unsigned long" which is 2038 unsafe on 32-bit systems. >> >> As part of addressing 2038 saftey for in-kernel uses, this patch renames mktime() to >> mktime_unsafe(), and changes all its calling users correspondingly. The safe version >> of mktime() will be added in the following patch. > > This is a flag day change. We really want to avoid that. Can we please > add a new interface first, then convert all the existing users and > kill the old interface. > > If we really care we can rename it back to the old name once all that > has been done, but I personally do not care whether its mktime or > mktime64 as long as it is fixed proper.
This was my bad, as I gave him guidance here. I was hoping to avoid doing the one-by-one function renaming dance twice, just to fix the function.
But you're probably right, and someone will probably add a new usage right before this gets merged and we'll have some pain there.
-john
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