[PATCH v2 05/10] KVM: inline is_*_pfn functions

Xiao Guangrong
2012-08-03T07:40:22Z

These functions are exported and can not inline, move them
to kvm_host.h to eliminate the overload of function call

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
---
include/linux/kvm_host.h | 19 ++++++++++++++++---
virt/kvm/kvm_main.c | 18 ------------------
2 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ba8b222..f604d1d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -21,6 +21,7 @@
#include <linux/slab.h>
#include <linux/rcupdate.h>
#include <linux/ratelimit.h>
+#include <linux/err.h>
#include <asm/signal.h>

#include <linux/kvm.h>
@@ -52,6 +53,21 @@
#define KVM_PFN_ERR_HWPOISON (-EHWPOISON)
#define KVM_PFN_ERR_BAD (-ENOENT)

+static inline int is_error_pfn(pfn_t pfn)
+{
+ return IS_ERR_VALUE(pfn);
+}
+
+static inline int is_noslot_pfn(pfn_t pfn)
+{
+ return pfn == -ENOENT;
+}
+
+static inline int is_invalid_pfn(pfn_t pfn)
+{
+ return !is_noslot_pfn(pfn) && is_error_pfn(pfn);
+}
+
/*
* vcpu->requests bit members
*/
@@ -397,9 +413,6 @@ id_to_memslot(struct kvm_memslots *slots, int id)
extern struct page *bad_page;

int is_error_page(struct page *page);
-int is_error_pfn(pfn_t pfn);
-int is_noslot_pfn(pfn_t pfn);
-int is_invalid_pfn(pfn_t pfn);
int kvm_is_error_hva(unsigned long addr);
int kvm_set_memory_region(struct kvm *kvm,
struct kvm_userspace_memory_region *mem,
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 75d3c76..08b600b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -937,24 +937,6 @@ int is_error_page(struct page *page)
}
EXPORT_SYMBOL_GPL(is_error_page);

-int is_error_pfn(pfn_t pfn)
-{
- return IS_ERR_VALUE(pfn);
-}
-EXPORT_SYMBOL_GPL(is_error_pfn);
-
-int is_noslot_pfn(pfn_t pfn)
-{
- return pfn == -ENOENT;
-}
-EXPORT_SYMBOL_GPL(is_noslot_pfn);
-
-int is_invalid_pfn(pfn_t pfn)
-{
- return !is_noslot_pfn(pfn) && is_error_pfn(pfn);
-}
-EXPORT_SYMBOL_GPL(is_invalid_pfn);
-
struct page *get_bad_page(void)
{
return ERR_PTR(-ENOENT);
--
1.7.7.6