Merge git://oss.sgi.com:8090/xfs/xfs-2.6

[powerpc.git] / arch / um / kernel / skas / clone.c

diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c
index cb37ce9..47b812b 100644 (file)
--- a/arch/um/kernel/skas/clone.c
+++ b/arch/um/kernel/skas/clone.c
@@ -18,11 +18,10 @@
  * on some systems.
  */
 
-#define STUB_DATA(field) (((struct stub_data *) UML_CONFIG_STUB_DATA)->field)
-
 void __attribute__ ((__section__ (".__syscall_stub")))
 stub_clone_handler(void)
 {
+       struct stub_data *data = (struct stub_data *) UML_CONFIG_STUB_DATA;
        long err;
 
        err = stub_syscall2(__NR_clone, CLONE_PARENT | CLONE_FILES | SIGCHLD,
@@ -35,17 +34,21 @@ stub_clone_handler(void)
        if(err)
                goto out;
 
-       err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL,
-                           (long) &STUB_DATA(timer), 0);
+       err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL, 
+                           (long) &data->timer, 0);
        if(err)
                goto out;
 
-       err = stub_syscall6(STUB_MMAP_NR, UML_CONFIG_STUB_DATA,
-                           UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE,
-                           MAP_FIXED | MAP_SHARED, STUB_DATA(fd),
-                           STUB_DATA(offset));
+       remap_stack(data->fd, data->offset);
+       goto done;
+
  out:
-       /* save current result. Parent: pid; child: retcode of mmap */
-       STUB_DATA(err) = err;
+       /* save current result. 
+        * Parent: pid; 
+        * child: retcode of mmap already saved and it jumps around this 
+        * assignment
+        */
+       data->err = err;
+ done:
        trap_myself();
 }