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SubjectRe: patent on O_ATOMICLOOKUP [Re: [PATCH] loopable tmpfs (2.4.17)]


On Sat, 25 May 2002, Oliver Xymoron wrote:
>
> I'm sure you know this route is not very useful - there's practically
> nothing that we can push across the hard RT divide anyway. We can't do
> meaningful filesystem I/O, memory allocation, networking, or VM fiddling -
> what's left?

Atomic memory allocation, for one. Potentially very useful.

> Cleaning up soft RT latencies will make the vast majority of people who
> think they want hard RT happy anyway.

I certainly personally agree with you, but the hard-liners don't.
Remember: it took the hard-RT community a long time to accept radical new
things like CPU caches, and some of them _still_ like the ability to lock
down cachelines..

Linus


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