Messages in this thread | | | Date | Sat, 9 Jun 2007 15:12:54 -0700 (PDT) | From | Davide Libenzi <> | Subject | Re: [patch 7/8] fdmap v2 - implement sys_socket2 |
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On Sat, 9 Jun 2007, Matt Mackall wrote:
> On Sat, Jun 09, 2007 at 01:31:56PM -0700, Davide Libenzi wrote: > > On Sat, 9 Jun 2007, Linus Torvalds wrote: > > > > > So I think both the FD_CLOEXEC _and_ the "private fd space" are real > > > issues. I don't agree with the "random fd" approach. I'd much rather have > > > a non-random setup for the nonlinear ones (it just shouldn't be linear). > > > > That is fine for me. So what about the randomness? > > > > A) Don't do it at all > > > > B) Let userspace select it in some way globally > > > > C) Let userspace select it per-fd (this won't be an O(1) anymore though) > > It should be handled the same way that VMA layout randomness is > handled. There are multiple knobs including ELF markers and /proc > bits.
You mean a global bit controlled by /proc, eventually overridden by an ELF flag? An maybe a prctl() to give sw configurability?
- Davide
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