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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-08-03 15:39:59 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-08-06 16:04:53 +0300 |
| commit | 83f09228d068911ac8797ae8d6febef886698936 (patch) | |
| tree | c4bfc135604c56f91594c44d56dcf03632d0a3e5 /include/linux/kvm_host.h | |
| parent | 950e95097b1c6573ef5e21061ccb56964278c45b (diff) | |
| download | lwn-83f09228d068911ac8797ae8d6febef886698936.tar.gz lwn-83f09228d068911ac8797ae8d6febef886698936.zip | |
KVM: inline is_*_pfn functions
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>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index b2cf3109822e..19d91ceaf5e6 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 */ @@ -396,9 +412,6 @@ 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, |