In article <[email protected]>, Eduardo Horvath <[email protected]> wrote: >On Wed, 9 Dec 2015, Carsten Kunze wrote: > >> [email protected] (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. christos
