On Tue, 3 Jul 2012, James Litchfield wrote:
Agreed - msync/munmap is the only guarantee.
I don't see that the munmap definition assures that anything is
written to "disk". The system is free to buffer the data in RAM as
long as it likes without writing anything at all.
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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