From: Jamie Lokier <jamie@shareable.org>
To: Mark Mielke <mark@mark.mielke.cc>
Cc: Mark Grosberg <mark@nolab.conman.org>,
dean gaudet <dean-list-linux-kernel@arctic.org>,
linux-kernel@vger.kernel.org
Subject: Re: [RFD] Combined fork-exec syscall.
Date: Mon, 28 Apr 2003 06:16:59 +0100 [thread overview]
Message-ID: <20030428051658.GA8294@mail.jlokier.co.uk> (raw)
In-Reply-To: <20030428034415.GC32043@mark.mielke.cc>
Mark Mielke wrote:
> If the argument is that vfork(), exec()
> must scan the file descriptors to determine which ones have FD_CLOEXEC set,
> then perhaps the answer is to index the FD_CLOEXEC bits of file descriptors?
More precisely, to index the file descriptors whih do _not_ have the
FD_CLOEXEC bit set - those are the file descriptors to copy into the
new process.
A more relevant optimisation is to make searching for new file
descriptors O(1) in accept(), yet that was discussed years ago and it
was decided it wasn't worth doing.
-- Jamie
next prev parent reply other threads:[~2003-04-28 5:04 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-28 0:57 [RFD] Combined fork-exec syscall Mark Grosberg
2003-04-28 0:59 ` Larry McVoy
2003-04-28 1:16 ` Mark Grosberg
2003-04-28 1:36 ` Måns Rullgård
2003-04-28 1:45 ` Mark Grosberg
2003-04-28 1:49 ` dean gaudet
2003-04-28 1:59 ` Mark Grosberg
2003-04-28 2:27 ` Miles Bader
2003-04-28 19:07 ` dean gaudet
2003-05-01 13:14 ` Jakob Oestergaard
2003-04-28 1:17 ` Davide Libenzi
2003-04-28 1:28 ` Mark Grosberg
2003-04-29 2:01 ` Rafael Costa dos Santos
2003-04-28 1:41 ` Ulrich Drepper
2003-04-28 1:49 ` Mark Grosberg
2003-04-28 2:19 ` Ulrich Drepper
2003-04-28 6:59 ` Kai Henningsen
2003-04-28 1:35 ` dean gaudet
2003-04-28 1:43 ` Mark Grosberg
2003-04-28 3:44 ` Mark Mielke
2003-04-28 5:16 ` Jamie Lokier [this message]
2003-04-28 2:38 ` Davide Libenzi
2003-04-28 2:09 ` Richard B. Johnson
2003-04-28 2:12 ` Mark Grosberg
2003-04-28 2:42 ` Werner Almesberger
2003-04-28 6:35 ` Mark Grosberg
2003-04-29 2:47 ` Rafael Santos
2003-04-28 3:20 ` Werner Almesberger
2003-04-28 13:00 ` Richard B. Johnson
2003-04-28 13:22 ` Andreas Schwab
2003-04-28 13:57 ` Richard B. Johnson
2003-04-28 13:57 ` Andreas Schwab
2003-04-28 14:16 ` Richard B. Johnson
2003-04-28 14:38 ` Valdis.Kletnieks
2003-04-28 14:56 ` Richard B. Johnson
2003-04-28 14:42 ` Andreas Schwab
2003-04-28 16:36 ` Mark Grosberg
2003-04-28 17:19 ` Davide Libenzi
2003-04-28 18:28 ` Craig Ruff
2003-05-06 2:48 ` Miles Bader
2003-04-29 18:50 ` Timothy Miller
2003-04-28 2:32 ` Werner Almesberger
2003-04-28 7:40 ` Mirar
2003-04-28 12:45 ` Matthias Andree
2003-04-29 1:05 ` Rafael Costa dos Santos
2003-04-28 1:19 ` Mark Grosberg
2003-04-29 1:29 ` Rafael Costa dos Santos
2003-04-28 3:03 Davide Libenzi
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