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    SubjectRe: [PATCH 3/9] bio-cgroup controller
    On Thu, 16 Apr 2009 15:29:37 -0700
    Andrew Morton <akpm@linux-foundation.org> wrote:

    > On Tue, 14 Apr 2009 22:21:14 +0200
    > Andrea Righi <righi.andrea@gmail.com> wrote:
    >
    > > Subject: [PATCH 3/9] bio-cgroup controller
    >
    > Sorry, but I have to register extreme distress at the name of this.
    > The term "bio" is well-established in the kernel and here we have a new
    > definition for the same term: "block I/O".
    >
    > "bio" was a fine term for you to have chosen from the user's
    > perspective, but from the kernel developer perspective it is quite
    > horrid. The patch adds a vast number of new symbols all into the
    > existing "bio_" namespace, many of which aren't related to `struct bio'
    > at all.
    >
    > At least, I think that's what's happening. Perhaps the controller
    > really _is_ designed to track `struct bio'? If so, that's an odd thing
    > to tell userspace about.
    >
    Hmm, how about iotrack-cgroup ?

    Thanks,
    -Kame


    >
    > > The controller bio-cgroup is used by io-throttle to track writeback IO
    > > and for properly apply throttling.
    >
    > Presumably it tracks all forms of block-based I/O and not just delayed
    > writeback.
    >
    >
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