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    SubjectRe: [PATCH] EDAC: core EDAC support code
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    On Tue, 2006-03-07 at 02:41 -0800, Andrew Morton wrote:
    > Al Viro <viro@ftp.linux.org.uk> wrote:
    > >
    > > On Mon, Mar 06, 2006 at 01:53:44PM -0800, Greg KH wrote:
    > > > > rmmod your_turd </sys/spew/from/your_turd
    > > > > and there you go. rmmod can _NOT_ wait for sysfs references to go away.
    > > >
    > > > To be fair, the only part of the kernel that supports the above process,
    > > > is the network stack. And they implemented a special kind of lock to
    > > > handle just this kind of thing.
    > > >
    > > > That is not something that I want the rest of the kernel to have to use.
    > > > If your code blocks when doing the above thing, that's fine with me.
    > >
    > > One word: fail. With -EBUSY.
    >
    > It seems quite simple to make wait_for_zero_refcount() interruptible?
    > Something like...

    Al is correct.

    It would have been so simple to implement rmmod as blocking, but it
    seems that not what people want. They want modprobe -r to fail if the
    module is busy, without ever causing spurious failures.

    Hope that clarifies?
    Rusty.
    --
    ccontrol: http://ozlabs.org/~rusty/ccontrol

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