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    SubjectRe: [PATCH] ceph: use kernel DNS resolver
    On Fri, 23 Sep 2011, Noah Watkins wrote:
    > On Thu, Sep 22, 2011 at 14:29, Sage Weil <sage@newdream.net> wrote:
    > > Currently the dns resolution is handled by mount.ceph and 'rbd map/unmap'.
    > > I don't think that will go away (at the very least need to support old
    > > kernels).
    >
    > This is good to know. I never encountered the DNS lookup because I've
    > always used a non-standard installation path, avoiding mount.ceph.
    >
    > > Allowing this in the raw kernel interface would be nice, but I don't think
    > > we want make DNS_RESOLVER a strict dependency, since it's new, kind of
    > > kludgey, and a ripe target for compiling out of small or secure kernels.
    > > Can you make it build either with or without it?
    >
    > I sent out a new version of the patch that defines a libceph specific
    > configuration option to use the in-kernel dns resolver.

    So I was actually thinking we could just #ifdef off of
    CONFIG_DNS_RESOLVER, but I think your approach might be better because
    you'll see it in the config process and turn it on, vs having to dig
    through to wherever DNS_RESOLVER lives in kconfig.

    Maybe it should default y though?

    sage


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