Re: [PATCH] cp --update --preserve

[Paul Eggert]

Paolo Montrasio <address@hidden> writes:

> Failure 1)
> When a new file is created the nanosecond component of the timestamp
> cannot be set by cp. This is a quote from cp's code:
> 
> Failure 2)

> The filesystem might not have a nanosecond time resolution, so we
> have to properly identify the supported resolution and the round off
> method (down or up?)
> 
> As there are two different failures there should be two different solutions.


I don't see why.  Both failures have the same symptoms: the time stamp
is truncated.  Both failures occur at exactly the same point: the same
system call.  A single solution could therefore handle both failures.