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    SubjectRe: [PATCH 1/5] fs: add netlink notification interface
    On Thu, Aug 18, 2011 at 02:18:22PM +0200, Lukas Czerner wrote:
    > +void fs_nl_send_warning(dev_t dev, unsigned int warntype)
    > +{

    I'm pretty sure this interface isn't going to be sufficient in the
    long run. I can imagine that people might want to pass in a struct
    inode *, or a struct file * if available, so we could pass back the
    inode number involved, or even the pathname.

    Also, I'd suggesting changing "warning" to "error", since that's what
    most of the things we are sending really are...

    > + ret = nla_put_u32(skb, FS_NL_A_WARNING, warntype);
    > + if (ret)
    > + goto attr_err_out;

    Why not make the warning type to be a string instead of an integer?
    This would make it easier to extend the protocol in the future.

    > + ret = nla_put_u64(skb, FS_NL_A_CAUSED_ID, current_uid());
    > + if (ret)
    > + goto attr_err_out;

    I'd also suggest passing back the process id that requested the I/O if
    that's known...

    - Ted


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