[Devel] Re: Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id)

2008-04-23 Thread Kirill Korotaev
If the current interface is insufficient, we should first expand it in such a way that it can be used for checkpoint. That certainly won't work in all cases. fork(), for instance, doesn't take any arguments and is going to be awfully hard to expand. :) I'd love to hear some of your

[Devel] Re: [PATCH] cgroup: use read lock to guard find_existing_css_set()

2008-04-23 Thread Paul Menage
On Tue, Apr 22, 2008 at 8:04 PM, Li Zefan [EMAIL PROTECTED] wrote: The function does not modify anything (except the temporary css template), so it's sufficient to hold read lock. Signed-off-by: Li Zefan [EMAIL PROTECTED] Acked-by: Paul Menage [EMAIL PROTECTED] Thanks. ---

[Devel] Re: [PATCH] cgroup: use read lock to guard find_existing_css_set()

2008-04-23 Thread Balbir Singh
Li Zefan wrote: The function does not modify anything (except the temporary css template), so it's sufficient to hold read lock. Signed-off-by: Li Zefan [EMAIL PROTECTED] --- kernel/cgroup.c |4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/cgroup.c

[Devel] Re: [PATCH 0/4] - v2 - Object creation with a specified id

2008-04-23 Thread Pavel Machek
Hi! When restarting a process that has been previously checkpointed, that process should keep on using some of its ids (such as its process id, or sysV ipc ids). This patch provides a feature that can help ensuring this saved state reuse: it makes it possible to create an object with a

[Devel] Re: [RFC][PATCH 0/7] Clone PTS namespace

2008-04-23 Thread Serge E. Hallyn
Quoting Eric W. Biederman ([EMAIL PROTECTED]): Serge E. Hallyn [EMAIL PROTECTED] writes: I'm hoping to be able to get back at this in the week or so as things settle down from my move. My last patches should be in my proof of concept network namespace tree, if they don't show up

[Devel] Re: [RFC PATCH 5/5] Add a Signal Control Group Subsystem

2008-04-23 Thread Cedric Le Goater
Hello Matt ! Add a signal control group subsystem that allows us to send signals to all tasks in the control group by writing the desired signal(7) number to the kill file. NOTE: We don't really need per-cgroup state, but control groups doesn't support stateless subsystems yet.

[Devel] Re: [RFC PATCH 5/5] Add a Signal Control Group Subsystem

2008-04-23 Thread Paul Menage
On Wed, Apr 23, 2008 at 8:17 AM, Cedric Le Goater [EMAIL PROTECTED] wrote: Hello Matt ! Add a signal control group subsystem that allows us to send signals to all tasks in the control group by writing the desired signal(7) number to the kill file. NOTE: We don't really need

[Devel] Re: [LTP] [PATCH 0/4] Helper patches for PTY namespaces

2008-04-23 Thread H. Peter Anvin
Serge E. Hallyn wrote: Subrata, pty namespaces as such are not going to happen. We'll be pursuing full-scale device namespaces instead. Again, either that, or tie Unix98 pty's closer into devpts (which would have other advantages, in particular avoiding the double lookup) which would

[Devel] Re: [RFC][PATCH 0/7] Clone PTS namespace

2008-04-23 Thread Eric W. Biederman
Serge E. Hallyn [EMAIL PROTECTED] writes: Quoting Serge E. Hallyn ([EMAIL PROTECTED]): Quoting Eric W. Biederman ([EMAIL PROTECTED]): Serge E. Hallyn [EMAIL PROTECTED] writes: I'm hoping to be able to get back at this in the week or so as things settle down from my move. My last

[Devel] Re: Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id)

2008-04-23 Thread Oren Laadan
Kirill Korotaev wrote: If the current interface is insufficient, we should first expand it in such a way that it can be used for checkpoint. That certainly won't work in all cases. fork(), for instance, doesn't take any arguments and is going to be awfully hard to expand. :) I'd love to