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    SubjectRe: [PATCH 5/7] cgroups: Make freezer subsystem bindable
    On Fri, Oct 22, 2010 at 01:57:55PM -0700, Matt Helsley wrote:
    > On Fri, Oct 22, 2010 at 04:11:41PM +0800, Li Zefan wrote:
    > > To make it bindable, we need to thaw all processes when unbinding
    > > the freezer subsystem from a cgroup hierarchy.
    > >
    > > Signed-off-by: Li Zefan <>


    > Alternately you could split the bind/unbind op function pointers
    > and get rid of the boolean argument. Then just don't fill in the
    > freezer's unbind op and refuse to unbind subsystems that lack
    > the unbind op. That seems a bit cleaner for now at least.

    Or alternately to the alternate :): add a can_unbind:1 field and keep
    the boolean bind op argument. That might be best -- avoids an extra
    function pointer and still splits the bind/unbind-ability of a

    -Matt Helsley

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