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Re: [Xen-devel] Re: [Xen-changelog] [linux-2.6.18-xen] Add "#ifdef ARCH_
| To: | Hollis Blanchard <hollisb@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Re: [Xen-changelog] [linux-2.6.18-xen] Add "#ifdef ARCH_HAS_DEV_MEM" to archtecture specific file_operations. |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Mon, 09 Jul 2007 20:26:36 +0100 |
| Cc: | Jun Kamada <kama@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ppc-devel <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Mon, 09 Jul 2007 12:21:22 -0700 |
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| In-reply-to: | <1184008821.26508.56.camel@basalt> |
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| Thread-topic: | [Xen-devel] Re: [Xen-changelog] [linux-2.6.18-xen] Add "#ifdef ARCH_HAS_DEV_MEM" to archtecture specific file_operations. |
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On 9/7/07 20:20, "Hollis Blanchard" <hollisb@xxxxxxxxxx> wrote: >> By the way, I wonder how PPC manages to build both drivers/char/mem.c and >> drivers/xen/char/mem.c without ARCH_HAS_DEV_MEM? The model is supposed to be >> that mem_fops defined by the Xen file is picked up by the generic file. If >> !ARCH_HAS_DEV_MEM then that doesn't happen -- so who picks up the Xen >> mem_fops? > > Hmmm, yeah. Looks like we haven't tested that... :) If you don't need to build both then there is potentially no problem with the Xen file hijacking the xlate_dev_mem() functions. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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