From: Jeff Dike <jdike@addtoit.com>
To: Blaisorblade <blaisorblade@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net,
"Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [uml-devel] Re: [RFC] PATCH 0/4 - Time virtualization
Date: Fri, 28 Apr 2006 07:48:23 -0400 [thread overview]
Message-ID: <20060428114823.GA3641@ccure.user-mode-linux.org> (raw)
In-Reply-To: <200604281333.41358.blaisorblade@yahoo.it>
On Fri, Apr 28, 2006 at 01:33:40PM +0200, Blaisorblade wrote:
> > So, maybe it belongs in clone as a "backwards" flag similar to
> > CLONE_NEWNS.
>
> I must note that currently every (?) flag allowed for unshare is also allowed
> for clone, so you need to do that anyway.
Currently. We are running out of CLONE_ bits - in mainline, there are
three left, and two of them are likely to be used by CLONE_TIME and
CLONE_UTSNAME (or whatever that turns out to be called).
I'm eyeing the low eight bits (CSIGNAL) for future unshare flags, but
those would be unusable in clone().
And why should there be any overlap between clone flags and unshare
flags? Isn't
clone(CLONE_TIME);
the same as
clone();
unshare(CLONE_TIME);
?
Jeff
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WARNING: multiple messages have this Message-ID (diff)
From: Jeff Dike <jdike@addtoit.com>
To: Blaisorblade <blaisorblade@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net,
"Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [uml-devel] Re: [RFC] PATCH 0/4 - Time virtualization
Date: Fri, 28 Apr 2006 07:48:23 -0400 [thread overview]
Message-ID: <20060428114823.GA3641@ccure.user-mode-linux.org> (raw)
In-Reply-To: <200604281333.41358.blaisorblade@yahoo.it>
On Fri, Apr 28, 2006 at 01:33:40PM +0200, Blaisorblade wrote:
> > So, maybe it belongs in clone as a "backwards" flag similar to
> > CLONE_NEWNS.
>
> I must note that currently every (?) flag allowed for unshare is also allowed
> for clone, so you need to do that anyway.
Currently. We are running out of CLONE_ bits - in mainline, there are
three left, and two of them are likely to be used by CLONE_TIME and
CLONE_UTSNAME (or whatever that turns out to be called).
I'm eyeing the low eight bits (CSIGNAL) for future unshare flags, but
those would be unusable in clone().
And why should there be any overlap between clone flags and unshare
flags? Isn't
clone(CLONE_TIME);
the same as
clone();
unshare(CLONE_TIME);
?
Jeff
next prev parent reply other threads:[~2006-04-28 12:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-13 17:19 [uml-devel] [RFC] PATCH 0/4 - Time virtualization Jeff Dike
2006-04-13 17:19 ` Jeff Dike
2006-04-14 0:31 ` [uml-devel] " john stultz
2006-04-14 0:31 ` john stultz
2006-04-14 1:53 ` [uml-devel] " Jeff Dike
2006-04-14 1:53 ` Jeff Dike
2006-04-14 16:24 ` john stultz
2006-04-14 16:24 ` john stultz
2006-04-19 8:25 ` Eric W. Biederman
2006-04-19 8:25 ` Eric W. Biederman
2006-04-26 18:01 ` [uml-devel] " Jeff Dike
2006-04-26 18:01 ` Jeff Dike
2006-04-28 11:33 ` [uml-devel] " Blaisorblade
2006-04-28 11:33 ` Blaisorblade
2006-04-28 11:48 ` Jeff Dike [this message]
2006-04-28 11:48 ` Jeff Dike
2006-04-28 12:14 ` Jeff Dike
2006-04-28 12:14 ` Jeff Dike
2006-04-28 13:54 ` Blaisorblade
2006-04-28 13:54 ` Blaisorblade
2006-04-28 15:15 ` Jeff Dike
2006-04-28 15:15 ` Jeff Dike
2006-04-28 20:10 ` Blaisorblade
2006-04-28 20:10 ` Blaisorblade
2006-04-28 16:18 ` Eric W. Biederman
2006-04-28 16:18 ` Eric W. Biederman
-- strict thread matches above, loose matches on Subject: below --
2006-04-14 15:39 Brock, Anthony - NET
2006-04-14 15:33 ` Jeff Dike
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