[Xen-devel] [PATCH] linux/blktap2: allow to build as module

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

... and also allow to interact with blkback when that's also built as
a module.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

--- head-2009-05-29.orig/arch/i386/mm/hypervisor.c      2009-05-29 
12:22:11.000000000 +0200
+++ head-2009-05-29/arch/i386/mm/hypervisor.c   2009-06-03 09:21:02.000000000 
+0200
@@ -122,6 +122,7 @@ void xen_tlb_flush_all(void)
        op.cmd = MMUEXT_TLB_FLUSH_ALL;
        BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
 }
+EXPORT_SYMBOL_GPL(xen_tlb_flush_all);
 
 void xen_tlb_flush_mask(cpumask_t *mask)
 {
@@ -132,6 +133,7 @@ void xen_tlb_flush_mask(const cpumask_t 
        set_xen_guest_handle(op.arg2.vcpumask, mask->bits);
        BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
 }
+EXPORT_SYMBOL_GPL(xen_tlb_flush_mask);
 
 void xen_invlpg_all(unsigned long ptr)
 {
--- head-2009-05-29.orig/drivers/xen/blktap2/device.c   2009-06-03 
08:58:54.000000000 +0200
+++ head-2009-05-29/drivers/xen/blktap2/device.c        2009-05-29 
12:39:04.000000000 +0200
@@ -14,7 +14,8 @@
 
 #include "blktap.h"
 
-#ifdef CONFIG_XEN_BLKDEV_BACKEND
+#if defined(CONFIG_XEN_BLKDEV_BACKEND) || \
+    (defined(CONFIG_XEN_BLKDEV_BACKEND_MODULE) && defined(MODULE))
 #include "../blkback/blkback-pagemap.h"
 #else
 struct blkback_pagemap { };




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