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Re: Aw: Re: Aw: Re: Setting mtime doesn't work after copying a file with mmap

In article <>,
Eduardo Horvath  <> wrote:
>On Wed, 9 Dec 2015, Carsten Kunze wrote:
>> (Christos Zoulas) wrote:
>> > How often should it be updated?
>> Only once on munmap?  If it is updated at an unpredictable time it makes
>something like utime(2) senseless (since it is changed anyway).  Always
>use msync is a performance issue for e.g. "cp -p ..." (so I think cp(1)
>doesn't use mmap for copying).
>Is the file descriptor still open at the time of the munmap?

No, it does not need to be. If it was it would be simple.


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