Messages in this thread | | | Date | Wed, 11 Apr 2012 10:58:24 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] nextfd(2) |
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On 04/10/2012 05:09 PM, KOSAKI Motohiro wrote: > > I know the reason. fcntl(F_NEXT) is one of a proposal of next SUS enhancement. > > http://austingroupbugs.net/view.php?id=149 > > nextfd() has a semantics of F_NEXT. > > Next, why shoundn't we implement fcntl(F_NEXT) in our kernel? I think > we have two reason. > > 1) As linus pointed out, linux specific "flags" argument may be useful. > 2) The name of F_NEXT is not fixed yet. another url of the austin says > it is FD_NEXT. > So, we can't choose right name yet. Moreover, A meanings of 3rd > argument of F_NEXT > haven't been fixed. >
But it still has the same braindamage: one system call per loop invocation, and we can do better. I would much rather see fdwalk() in SUS.
-hpa
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