Messages in this thread | | | Date | Tue, 02 Nov 1999 14:40:20 -0500 | From | Richard Dynes <> | Subject | remap_page_range / zeromap_page_range |
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Hello,
I'm wrapping up the user space mapping functions in bttv.c into a single set of functions for a kernel patch, and I noticed that it uses remap_page_range, but not zeromap_page_range for creating and destroying the mmaped space.
These functions seem to be symmetric, and so I would assume that if remap_page_range is called to create the mapping, that when the file is closed zeromap_page_range should also be called. In my application it's possible that the user process calling mmap would survive the close.
Or does it not matter, ie the map will be cleaned out when the memory is freed?
-Richard
-- Richard Dynes rdynes@varcom.com
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