Messages in this thread |  | | | Date | Thu, 4 Sep 2003 11:46:28 -0700 (PDT) | | From | Linus Torvalds <> | | Subject | Re: [PATCH] Alternate futex non-page-pinning and COW fix |
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On Thu, 4 Sep 2003, Jamie Lokier wrote: > > * I contend that the user-visible behaviour of a mapping should > * _not_ depend on whether the file was opened with O_RDWR or O_RDONLY.
And I violently agree. But I also add the _other_ requirement:
* I contend that user-visible behaviour of a mapping should be 100% the * same for a unwritable MAP_SHARED and a unwritten MAP_PRIVATE
Put the two together, and see what you get. You get the requirement that if MAP_SHARED works, then MAP_PRIVATE also has to work.
That's my requirement. Consistency.
Linus
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