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    SubjectRe: [PATCH 00/80] Kernel based checkpoint/restart [v18]
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    DL> If the checkpoint is done from the kernel, why the restart
    DL> wouldn't be in the kernel too ?

    I think thus far we have taken the approach of "if it can be done
    reasonably in userspace, then do it there" right? Setup of the
    network devices is easy to do in userspace, allows more flexibility
    from a policy standpoint, and ensures that all existing security
    checks are performed. Also, migration may be easier if the userspace
    bits can call custom hooks allowing for routing changes and other
    infrastructure-specific operations.

    DL> Is there any documentation about the statefile format I can use if
    DL> I want to implement myself an userspace CR solution based on this
    DL> kernel patchset ?

    See linux-cr/include/linux/checkpoint_hdr.h and user-cr/restart.c.

    --
    Dan Smith
    IBM Linux Technology Center
    email: danms@us.ibm.com


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