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    SubjectRe: export of sys_call_table
    Andi,

    On Fri, 04 Oct 2002, Andi Kleen wrote:

    > "Brian F. G. Bidulock" <bidulock@openss7.org> writes:
    >
    >
    > > void *dataptr, int band, int flags)
    > > {
    > > int ret =3D -ENOSYS;
    > > read_lock(&streams_call_lock);
    >
    > I don't think you really want to use any spinlocks this way. They would
    > make sleeping impossible and you could never legally do a copy_from/to_user
    > in your system call. And how else would you access dataptr ?
    >
    > More likely you want an atomic_inc(&modulecounter) or perhaps a rw
    > semaphore.

    read_lock and write_lock are a rw semaphores, aren't they?

    --brian

    --
    Brian F. G. Bidulock ¦ The reasonable man adapts himself to the ¦
    bidulock@openss7.org ¦ world; the unreasonable one persists in ¦
    http://www.openss7.org/ ¦ trying to adapt the world to himself. ¦
    ¦ Therefore all progress depends on the ¦
    ¦ unreasonable man. -- George Bernard Shaw ¦
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