From: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
Dave Hansen
<dave-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Subject: Re: [RFC v14-rc2][PATCH 19/29] Record 'struct file' object instead of the file name for VMAs
Date: Wed, 1 Apr 2009 16:45:09 -0500 [thread overview]
Message-ID: <20090401214509.GA27725@us.ibm.com> (raw)
In-Reply-To: <1238477349-11029-20-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Quoting Oren Laadan (orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org):
> The vma->vm_file can be an arbitrary file pointer, including one that
> is in use by a process as well and provided originally via the mmap()
> syscall.
>
> Thus, when dumping the state of a VMA, save a file object instead
> of only the file name. As with other file objects, if it's seen for
> the first time it is dumped entirely, otherwise only the 'objref' is
> saved. The restart logic updated accordingly.
>
> Changelog[v14]:
> - Introduce patch
>
> Signed-off-by: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
Acked-by: Serge Hallyn <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
(I assume this was on your todo list before Alexey pointed it
out? If not, it might be gracious to mention him)
-serge
next prev parent reply other threads:[~2009-04-01 21:45 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-31 5:28 [RFC v14-rc2][PATCH 00/29] Kernel based checkpoint/restart Oren Laadan
[not found] ` <1238477349-11029-1-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 01/29] Create syscalls: sys_checkpoint, sys_restart Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 02/29] Checkpoint/restart: initial documentation Oren Laadan
[not found] ` <1238477349-11029-3-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:22 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 03/29] Make file_pos_read/write() public Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 04/29] General infrastructure for checkpoint restart Oren Laadan
[not found] ` <1238477349-11029-5-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:24 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 05/29] x86 support for checkpoint/restart Oren Laadan
[not found] ` <1238477349-11029-6-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:25 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 06/29] Dump memory address space Oren Laadan
[not found] ` <1238477349-11029-7-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:26 ` Sukadev Bhattiprolu
[not found] ` <20090407032636.GD12316-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-07 4:57 ` Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 07/29] Restore " Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 08/29] Infrastructure for shared objects Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 09/29] Dump open file descriptors Oren Laadan
[not found] ` <1238477349-11029-10-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:28 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 10/29] actually use f_op in checkpoint code Oren Laadan
[not found] ` <1238477349-11029-11-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-03-31 18:31 ` Oren Laadan
2009-04-01 18:54 ` Serge E. Hallyn
2009-04-07 3:29 ` Sukadev Bhattiprolu
[not found] ` <20090407032912.GF12316-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-07 5:36 ` Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 11/29] add generic checkpoint f_op to ext fses Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 12/29] Restore open file descriptors Oren Laadan
[not found] ` <1238477349-11029-13-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:29 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 13/29] External checkpoint of a task other than ourself Oren Laadan
[not found] ` <1238477349-11029-14-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:30 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 14/29] Checkpoint multiple processes Oren Laadan
[not found] ` <1238477349-11029-15-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:31 ` Sukadev Bhattiprolu
[not found] ` <20090407033111.GI12316-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-07 5:12 ` Oren Laadan
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 15/29] Restart " Oren Laadan
[not found] ` <1238477349-11029-16-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 3:33 ` Sukadev Bhattiprolu
[not found] ` <20090407033315.GJ12316-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-07 5:31 ` Oren Laadan
[not found] ` <49DAE526.6010900-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-07 16:29 ` Sukadev Bhattiprolu
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 16/29] A new file type (CR_FD_OBJREF) for a file descriptor already setup Oren Laadan
[not found] ` <1238477349-11029-17-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 13:59 ` Serge E. Hallyn
[not found] ` <20090401135952.GA16973-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-01 14:13 ` Oren Laadan
2009-04-01 18:36 ` Serge E. Hallyn
2009-04-03 15:46 ` Dan Smith
[not found] ` <87y6uhyc3j.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-04-03 16:25 ` Oren Laadan
[not found] ` <49D63865.1030807-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-03 16:30 ` Dan Smith
2009-04-03 16:54 ` Dave Hansen
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 17/29] Checkpoint open pipes Oren Laadan
[not found] ` <1238477349-11029-18-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 19:47 ` Serge E. Hallyn
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 18/29] Restore " Oren Laadan
[not found] ` <1238477349-11029-19-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 20:34 ` Serge E. Hallyn
2009-03-31 5:28 ` [RFC v14-rc2][PATCH 19/29] Record 'struct file' object instead of the file name for VMAs Oren Laadan
[not found] ` <1238477349-11029-20-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 21:45 ` Serge E. Hallyn [this message]
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 20/29] Prepare to support shared memory Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 21/29] Dump anonymous- and file-mapped- " Oren Laadan
[not found] ` <1238477349-11029-22-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 23:06 ` Serge E. Hallyn
[not found] ` <20090401230657.GB27725-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-01 23:18 ` Oren Laadan
[not found] ` <49D3F636.1070303-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 23:32 ` Serge E. Hallyn
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 22/29] Restore " Oren Laadan
[not found] ` <1238477349-11029-23-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-02 16:59 ` Serge E. Hallyn
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 23/29] s390: Expose a constant for the number of words representing the CRs Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 24/29] c/r: Add CR_COPY() macro (v4) Oren Laadan
[not found] ` <1238477349-11029-25-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-04-01 23:20 ` Serge E. Hallyn
[not found] ` <20090401232013.GA31361-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-02 19:00 ` Dan Smith
[not found] ` <87vdpmnan2.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-04-02 19:06 ` Serge E. Hallyn
[not found] ` <20090402190612.GA24390-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-04-02 20:22 ` Dan Smith
[not found] ` <87r60an6us.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-04-05 20:25 ` Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 25/29] s390: define s390-specific checkpoint-restart code (v7) Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 26/29] powerpc: provide APIs for validating and updating DABR Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 27/29] powerpc: checkpoint/restart implementation Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 28/29] powerpc: wire up checkpoint and restart syscalls Oren Laadan
2009-03-31 5:29 ` [RFC v14-rc2][PATCH 29/29] powerpc: enable checkpoint support in Kconfig Oren Laadan
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