Re: Final(?) Patch : CLONE_PPID, CLONE_WAIT, CLONE_SUSPENDED

Matthew Wilcox (Matthew.Wilcox@genedata.com)
Sun, 1 Aug 1999 18:37:56 +0200


On Sat, Jul 31, 1999 at 03:41:48PM -0500, Tim Hockin wrote:
> Here is the final patch with various fixes and suggested checks included.
> Does anyone see anything else it is missing?

I still don't think we need CLONE_PPIDOK. I've been convinced that we
need PF_PPIDOK, and that flag should be cleared on exec(); but I really
don't see the process needs to explicitly allow other portions of itself
to become its siblings.

(hmm.. might it be useful to allow a process to be able to CLONE_PPID
after it has exec()ed? That's the only time I can think of when PPIDOK
makes sense. And that seems a pretty unlikely thing to want.)

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson

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