Messages in this thread | | | Date | Wed, 5 Jun 2002 14:14:39 -0400 | From | Daniel Jacobowitz <> | Subject | Re: [rfc] "laptop mode" |
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On Wed, Jun 05, 2002 at 01:07:35PM -0400, Andrew Pimlott wrote: > On Tue, Jun 04, 2002 at 11:41:57PM -0400, Albert D. Cahalan wrote: > > Also write out everything just before stopping the disk. > > Don't let the disk stop if there is any dirty data. > > The kernel doesn't currently do spin-down at all, does it? Andrew, > are you planning to change this? I'm not a kernel programmer, but > it seems like a good idea to me: The kernel could flush writes as > usual while the disk is spun up, but still spin down after a bit if > the rate is low enough. The disk would never spin itself down in > that case. Maybe there are also cases where the kernel would delay > spin-down, if it hasn't started writing but thinks it might soon. > > I'm excited to try this. Thanks for writing it against 2.4!
At that point, you might as well be in userspace - particularly, you might as well be running/enhancing noflushd.
-- Daniel Jacobowitz Carnegie Mellon University MontaVista Software Debian GNU/Linux Developer - 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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