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    SubjectRe: [PATCH repost] sched: export sched_set/getaffinity to modules

    On 07/30/2010 04:19 PM, Oleg Nesterov wrote:
    > But I must admit, I personally dislike this idea. A kernel thread which
    > is the child of the user-space process, and in fact it is not the "real"
    > kernel thread. I think this is against the common case. If you do not
    > care the signals/reparenting, why can't you fork the user-space process
    > which does all the work via ioctl's ? OK, I do not understand the problem
    > domain, probably this can't work.

    Having kernel threads which are children of user process is plain
    scary considering the many things parent/children relationship implies
    and various bugs and security vulnerabilities in the area. I can't
    pinpoint any problem but I think we really shouldn't be adding
    something like this for this specific use case. If we can get away
    with exporting a few symbols, let's go that way.



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