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    SubjectRe: [PATCH] Memory Resource Controller Add Boot Option
    Paul Menage wrote:
    > On Mon, Feb 25, 2008 at 7:01 PM, Li Zefan <lizf@cn.fujitsu.com> wrote:
    >> >
    >> > - foo doesn't show up in /proc/cgroups
    >>
    >> Or we can print out the disable flag, maybe this will be better?
    >> Because we can distinguish from disabled and not compiled in from
    >>
    >> /proc/cgroups.
    >
    > Certainly possible, if people felt it was useful.
    >
    >> > - foo isn't auto-mounted if you mount all cgroups in a single hierarchy
    >> > - foo isn't visible as an individually mountable subsystem
    >>
    >> You mentioned in a previous mail if we mount a disabled subsystem we
    >> will get an error. Here we just ignore the mount option. Which makes
    >> more sense ?
    >>
    >
    > No, we don't ignore the mount option - we give an error since it
    > doesn't refer to a valid subsystem. (And in the first case there is no
    > mount option).
    >

    You are write, -ENOENT will be returned in this case. I made a mistake when
    reading the prototype patch, thanks for the clarification. :)



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