1 files changed, 4 insertions, 7 deletions

diff --git a/arch/um/sys-x86_64/unmap.c b/arch/um/sys-x86_64/unmap.c
index f4a4bffd8a18..57c9286a701b 100644
--- a/arch/um/sys-x86_64/unmap.c
+++ b/arch/um/sys-x86_64/unmap.c
@@ -5,20 +5,17 @@
 
 #include <linux/mman.h>
 #include <asm/unistd.h>
+#include <sys/syscall.h>
 
-static int errno;
-
-static inline _syscall2(int,munmap,void *,start,size_t,len)
-static inline _syscall6(void *,mmap,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
 int switcheroo(int fd, int prot, void *from, void *to, int size)
 {
-        if(munmap(to, size) < 0){
+        if (syscall(__NR_munmap, to, size) < 0){
                 return(-1);
         }
-        if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1){
+        if (syscall(__NR_mmap, to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1){
                 return(-1);
         }
-        if(munmap(from, size) < 0){
+        if (syscall(__NR_munmap, from, size) < 0){
                 return(-1);
         }
         return(0);