Messages in this thread |  | | Date | Sat, 2 Sep 2000 11:42:26 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: thread rant |
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On Sat, 2 Sep 2000, Ingo Molnar wrote:
> well, Linux SysV shared memory indeed has a 'software version' of > pagetables, this way if one process faults in a new page (because all > pages are unmapped originally), then the new physical page address can be > discovered by all other subsequent faults in other process contexts. It > works just fine - the thing i dislike about SysV shared memory is not the > VM part but its 'filesystem characteristics' - i think anonymous shared > memory is the way to go.
Why? I would say that bad thing about SysV shared memory is that it's _not_ sufficiently filesystem-thing - a special API where 'create a file on ramfs and bloody mmap() it' would be sufficient. Why bother with special sets of syscalls?
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