Messages in this thread | | | Date | Tue, 5 May 2015 10:52:33 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH] USB: usbmon: Use 64bit timestamp for mon_bin_hdr |
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On Mon, 4 May 2015, Tina Ruchandani wrote:
> > but the timestamp will also overflow. So what is the point? > > > > The 32-bit timestamp obtained using do_gettimeofday() will overflow in > year 2038. However, with 64-bit timestamps, we get practically > infinite time. mon_bin_hdr already has support for a 64-bit seconds > timestamp. This patch changes how it is populated.
Surely the real point was mentioned in the patch description:
> ... This patch is part of a larger > attempt to remove instances of struct timeval and other 32-bit timekeeping > (time_t, struct timespec) from the kernel.
The point is to get rid of 32-bit timekeeping routines. Overflow and the exact nature of the timestamps in usbmon are irrelevant.
Alan Stern
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