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xen/balloon: Fix declared-but-not-defined warning

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Fix a declared-but-not-defined warning when building with
XEN_BALLOON_MEMORY_HOTPLUG=n. This fixes a regression introduced by
commit dfd74a1edf ("xen/balloon: Fix crash when ballooning on x86 32
bit PAE").

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Ross Lagerwall 2016-05-10 10:27:54 +01:00 committed by David Vrabel
parent 33688abb28
commit 842775f150
1 changed files with 13 additions and 15 deletions
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28
drivers/xen/balloon.c
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@ -151,8 +151,6 @@ static DECLARE_WAIT_QUEUE_HEAD(balloon_wq);
static void balloon_process(struct work_struct *work);
static DECLARE_DELAYED_WORK(balloon_worker, balloon_process);
static void release_memory_resource(struct resource *resource);
/* When ballooning out (allocating memory to return to Xen) we don't really
want the kernel to try too hard since that can trigger the oom killer. */
#define GFP_BALLOON \
@ -248,6 +246,19 @@ static enum bp_state update_schedule(enum bp_state state)
}
#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
static void release_memory_resource(struct resource *resource)
{
if (!resource)
return;
/*
* No need to reset region to identity mapped since we now
* know that no I/O can be in this region
*/
release_resource(resource);
kfree(resource);
}
static struct resource *additional_memory_resource(phys_addr_t size)
{
struct resource *res;
@ -286,19 +297,6 @@ static struct resource *additional_memory_resource(phys_addr_t size)
return res;
}
static void release_memory_resource(struct resource *resource)
{
if (!resource)
return;
/*
* No need to reset region to identity mapped since we now
* know that no I/O can be in this region
*/
release_resource(resource);
kfree(resource);
}
static enum bp_state reserve_additional_memory(void)
{
long credit;