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Re: [Xen-devel] [PATCH] multi-page blkfront/blkback patch
| To: | Jan Beulich <jbeulich@xxxxxxxxxx>, Geoffrey Lefebvre <geoffrey@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] multi-page blkfront/blkback patch |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Fri, 28 Nov 2008 09:22:57 +0000 |
| Cc: | Andrew Warfield <andy@xxxxxxxxx>, Dutch Meyer <dmeyer@xxxxxxxxx>, Samvel Yuri <samvelox@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Samuel Thibault <samuel.thibault@xxxxxxxxxxxx> |
| Delivery-date: | Fri, 28 Nov 2008 01:23:10 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH] multi-page blkfront/blkback patch |
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On 28/11/08 08:41, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: >> +#ifndef CONFIG_XEN_BLKDEV_NUM_RING_PAGES >> +#error "CONFIG_XEN_BLKDEV_NUM_RING_PAGES undefined!" >> +#endif > > This won't work when building unmodified_drivers - I'm not sure what value > to default to here, though. But for compatibility it should probably be 1, > and the unmodified drivers' Kbuild could override it if desired. It should be a module parameter anyway. I don't think there's anything particularly hard about choosing ring size at run time rather than build time. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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