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

In article <>,
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).
>If the current behaviour is 4.4BSD derived it is ok, but if it's "only"
>NetBSD specific it is maybe not optimal.

Someone with uvm knowledge is better suited to answer this... perhaps
uvn_detach should update {m,a}times?


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