Messages in this thread | | | Subject | Re: Non-GPL export of invalidate_mmap_range | From | "Stephen C. Tweedie" <> | Date | 19 Feb 2004 22:06:42 +0000 |
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Hi,
On Thu, 2004-02-19 at 20:56, Daniel Phillips wrote:
> OpenGFS and Sistina GFS use zap_page_range directly, essentially doing the > same as invalidate_mmap_range but skipping any vmas belonging to MAP_PRIVATE > mmaps.
Well, MAP_PRIVATE maps can contain shared pages too --- any page in a MAP_PRIVATE map that has been mapped but not yet written to is still shared, and still needs shot down on truncate().
--Stephen
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