| To: | Andi Kleen <ak@xxxxxxx> |
|---|---|
| Subject: | Re: O_DIRECT address restrictions |
| From: | "Stephen C. Tweedie" <sct@xxxxxxxxxx> |
| Date: | 19 May 2003 10:32:22 +0100 |
| Cc: | Steve Lord <lord@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxx>, Rick Smith <rgsmith72@xxxxxxxxxxx>, linux-xfs@xxxxxxxxxxx |
| In-reply-to: | <20030516140309.GA20586@xxxxxxxxxxxxx> |
| Organization: | |
| References: | <Sea2-F35IOvGqI3vMLc0000f253@xxxxxxxxxxx> <20030515183248.5cd999cb.akpm@xxxxxxxxx> <1053093503.5870.5.camel@xxxxxxxxxxxxxxxxxxxx> <20030516140309.GA20586@xxxxxxxxxxxxx> |
| Sender: | linux-xfs-bounce@xxxxxxxxxxx |
Hi, On Fri, 2003-05-16 at 15:03, Andi Kleen wrote: > > Probably a lot of work though. > > Not very. You just have to change setup.c a bit to extent the mem_map above > the physical addresses you want to copy. We have the abstractions to allow discontiguous mem_map, and can find out fairly easily where the PCI IO apertures are. --Stephen |
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