From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman)
To: Nadia.Derbey-6ktuUTfB/bM@public.gmane.org
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [RFC PATCH 3/5] use next syscall data to predefine process ids
Date: Wed, 09 Jul 2008 17:27:09 -0700 [thread overview]
Message-ID: <m1hcayfusi.fsf@frodo.ebiederm.org> (raw)
In-Reply-To: <20080708112458.946320000-6ktuUTfB/bM@public.gmane.org> (Nadia Derbey's message of "Tue, 08 Jul 2008 13:24:25 +0200")
Nadia.Derbey-6ktuUTfB/bM@public.gmane.org writes:
> [PATCH 03/05]
>
> This patch uses the value written into the next_syscall_data proc file
> as a target upid nr for the next process to be created.
> The following syscalls have a new behavior if next_syscall_data is set:
> . fork()
> . vfork()
> . clone()
>
> In the current version, if the process belongs to nested namespaces, only
> the upper namespace level upid nr is allowed to be predefined, since there
> is not yet a way to take a snapshot of upid nrs at all namespaces levels.
>
> But this can easily be extended in the future.
This patch is unnecessary. The and a mess. The existing limits on the pid range should
be enough. We may need to export it via /proc/sys.
Eric
next prev parent reply other threads:[~2008-07-10 0:27 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-08 11:24 [RFC PATCH 0/5] Resend -v2 - Use procfs to change a syscall behavior Nadia.Derbey-6ktuUTfB/bM
2008-07-08 11:24 ` [RFC PATCH 1/5] adds the procfs facilities Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080708112457.994105000-6ktuUTfB/bM@public.gmane.org>
2008-07-08 19:32 ` Serge E. Hallyn
2008-07-08 11:24 ` [RFC PATCH 2/5] use next syscall data to predefine ipc objects ids Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080708112458.416998000-6ktuUTfB/bM@public.gmane.org>
2008-07-08 19:38 ` Serge E. Hallyn
2008-07-08 11:24 ` [RFC PATCH 3/5] use next syscall data to predefine process ids Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080708112458.946320000-6ktuUTfB/bM@public.gmane.org>
2008-07-08 19:49 ` Serge E. Hallyn
2008-07-10 0:27 ` Eric W. Biederman [this message]
[not found] ` <m1hcayfusi.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 8:32 ` Nadia Derbey
[not found] ` <4875C932.2020503-6ktuUTfB/bM@public.gmane.org>
2008-07-10 9:36 ` Eric W. Biederman
2008-07-08 11:24 ` [RFC PATCH 4/5] use next syscall data to change the behavior of IPC_SET Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080708112459.231249000-6ktuUTfB/bM@public.gmane.org>
2008-07-08 19:56 ` Serge E. Hallyn
2008-07-08 11:24 ` [RFC PATCH 5/5] use next syscall data to predefine the file descriptor value Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080708112459.632357000-6ktuUTfB/bM@public.gmane.org>
2008-07-08 20:14 ` Serge E. Hallyn
[not found] ` <20080708201452.GE22904-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-07-09 5:00 ` kathys
[not found] ` <487445E4.6060107-8fk3Idey6ehBDgjK7y7TUQ@public.gmane.org>
2008-07-10 6:12 ` Nadia Derbey
[not found] ` <4875A849.1030206-6ktuUTfB/bM@public.gmane.org>
2008-07-14 4:58 ` kathys
2008-07-10 0:32 ` Eric W. Biederman
[not found] ` <m1tzeyefz9.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 6:25 ` Nadia Derbey
[not found] ` <20080708112422.164370000-6ktuUTfB/bM@public.gmane.org>
2008-07-09 22:10 ` [Devel] [RFC PATCH 0/5] Resend -v2 - Use procfs to change a syscall behavior Alexey Dobriyan
[not found] ` <20080709221028.GA4926-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-07-10 0:43 ` Eric W. Biederman
[not found] ` <m1tzeyd0x3.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 1:39 ` Alexey Dobriyan
[not found] ` <20080710013915.GB8327-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-07-10 2:14 ` Eric W. Biederman
2008-07-15 18:18 ` Eric W. Biederman
2008-07-17 22:42 ` Oren Laadan
[not found] ` <487FCAF0.70607-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2008-07-18 1:09 ` Matt Helsley
[not found] ` <1216343365.4844.308.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2008-07-18 2:49 ` Eric W. Biederman
2008-07-18 2:40 ` Eric W. Biederman
2008-07-10 16:01 ` Dave Hansen
2008-07-10 0:36 ` Eric W. Biederman
[not found] ` <m1lk0aefs1.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 9:54 ` Nadia Derbey
-- strict thread matches above, loose matches on Subject: below --
2008-07-03 14:40 [RFC PATCH 0/5] Resend " Nadia.Derbey-6ktuUTfB/bM
2008-07-03 14:40 ` [RFC PATCH 3/5] use next syscall data to predefine process ids Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080703144225.489624000-6ktuUTfB/bM@public.gmane.org>
2008-07-07 18:54 ` Serge E. Hallyn
[not found] ` <20080707185424.GA25934-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-07-08 5:44 ` Nadia Derbey
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