Re: mmap/munmap semantics

On Thu, 24 Feb 2000 kernel@kvack.org wrote:

On Thu, 24 Feb 2000, Richard Guenther wrote:

quoted

Cool, too. So for now we will stay with zeroing by reading from /dev/zero
which does vm tricks in linux already.

It does not do tricks when you are dealing with a shared mapping.

Oops, so I misread the code in drivers/char/mem.c ... well, so how can I
get the same effect as for the private mapping? Not at the moment, I
think? So memset should be faster than reading from /dev/zero?

Richard.

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