Messages in this thread | | | Date | Tue, 2 May 2006 14:28:45 -0700 | From | Greg KH <> | Subject | Re: [PATCH] s390: Hypervisor File System |
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On Tue, May 02, 2006 at 01:46:03PM +0200, Kay Sievers wrote: > On Mon, May 01, 2006 at 10:37:03PM -0700, Greg KH wrote: > > On Tue, May 02, 2006 at 07:23:41AM +0200, Kay Sievers wrote: > > > If the count of values handled in a transaction is not to high and it > > > makes sense to group these values logically, why not just create an > > > attribute group for every transaction, which creates dummy attributes > > > to fill the values in, and use an "action" file in that group, that > > > commits all the values at once to whatever target? That should fit into > > > the ioctl use pattern, right? > > > > That's what configfs can handle easier. I think the issue is getting > > stuff from the kernel in one atomic snapshot (all the different file > > values from the same point in time.) > > Sure, but just like an ioctl, the kernel could return the values after > writing to the "action" file in the dummy attributes. That would be > something like a snapshot, right?
Yes, but where would the buffer be to return the data to on a write? In the data that the user passed to write?
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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