Re: [patch 2/2] ufd v1 - use unsequential O(1) fdmap

[Linus Torvalds]

On Sun, 3 Jun 2007, Davide Libenzi wrote:
> 
> Agreed, a new syscall looks less messy. I'll make sys_dup2() to allow 
> installing in the non-sequential area, only if there's an fd already 
> allocated. F_DUPFD will remain unchanged (that is, not allow 
> non-sequential fds allocations).

I actually think that a new system call is _hugely_ messy. It means that 
anybody who wants to use a new feature needs to have a new glibc. Not 
nice, not nice at all. I'd much rather see a totally transparent extension 
that doesn't require any new user space what-so-ever to be used...

		Linus
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