X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fum%2Fkernel%2Fskas%2Fclone.c;h=47b812b3bca88b965b48563de658db9ada72fd81;hb=b1ef951e8199d1c59f14dbe0fa22974ed57a3b48;hp=4dc55f10cd182af2e6366c15d71954b1eb4e1ed3;hpb=f7f24758ac98a506770bc5910d33567610fa3403;p=powerpc.git

diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c
index 4dc55f10cd..47b812b3bc 100644
--- a/arch/um/kernel/skas/clone.c
+++ b/arch/um/kernel/skas/clone.c
@@ -9,18 +9,23 @@
 #include "stub-data.h"
 #include "uml-config.h"
 #include "sysdep/stub.h"
+#include "kern_constants.h"
 
 /* This is in a separate file because it needs to be compiled with any
  * extraneous gcc flags (-pg, -fprofile-arcs, -ftest-coverage) disabled
+ *
+ * Use UM_KERN_PAGE_SIZE instead of PAGE_SIZE because that calls getpagesize
+ * on some systems.
  */
+
 void __attribute__ ((__section__ (".__syscall_stub")))
 stub_clone_handler(void)
 {
+	struct stub_data *data = (struct stub_data *) UML_CONFIG_STUB_DATA;
 	long err;
-	struct stub_data *from = (struct stub_data *) UML_CONFIG_STUB_DATA;
 
 	err = stub_syscall2(__NR_clone, CLONE_PARENT | CLONE_FILES | SIGCHLD,
-			    UML_CONFIG_STUB_DATA + PAGE_SIZE / 2 -
+			    UML_CONFIG_STUB_DATA + UM_KERN_PAGE_SIZE / 2 -
 			    sizeof(void *));
 	if(err != 0)
 		goto out;
@@ -29,16 +34,21 @@ stub_clone_handler(void)
 	if(err)
 		goto out;
 
-	err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL,
-			    (long) &from->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, PAGE_SIZE,
-			    PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED,
-			    from->fd, from->offset);
+	remap_stack(data->fd, data->offset);
+	goto done;
+
  out:
-	/* save current result. Parent: pid; child: retcode of mmap */
-	from->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();
 }