From: Ulrich Drepper <drepper@gmail.com>
To: Chris Wright <chrisw@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Pollable Semaphores
Date: Fri, 21 Jan 2005 23:39:55 -0800 [thread overview]
Message-ID: <a36005b50501212339405ca4a7@mail.gmail.com> (raw)
In-Reply-To: <20050121230504.T469@build.pdx.osdl.net>
On Fri, 21 Jan 2005 23:05:04 -0800, Chris Wright <chrisw@osdl.org> wrote:
> Yeah, here it is. I refreshed it against a current kernel. It passes my
> same old test, where I select on /proc/<pid>/status fd in exceptfds.
Looks certainly attractive to me. Nice small patch. How quickly
after the death of the process is proc_pid_flush() called?
If this could go in and the futex stuff is handled, there is "only"
async I/O to handle. After that we could finally create a uniform
event mechanism at userlevel which binds all these events (I/O,
process/thread termination, sync primitives) together. Maybe support
for legacy sync primitives (SysV semaphores, msg queues) is needed as
well, don't know yet. Note that I assume that polling of POSIX
mqueues works as it did the last time I tried it.
next prev parent reply other threads:[~2005-01-22 7:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-21 21:22 Pollable Semaphores Brandon Corey
2005-01-21 21:37 ` Roland Dreier
2005-01-21 23:17 ` Brent Casavant
2005-01-22 3:43 ` Ulrich Drepper
2005-01-22 5:52 ` Chris Wright
2005-01-22 7:05 ` Chris Wright
2005-01-22 7:39 ` Ulrich Drepper [this message]
2005-01-22 18:02 ` Chris Wright
2005-01-24 20:42 ` Robert White
2005-01-22 0:07 ` Davide Libenzi
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