Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] locking problem with __cpcmd.
  [S390] don't call handle_mm_fault() if in an atomic context.
  [S390] Fix vmalloc area size calculation.
  [S390] Fix cpu hotplug (missing 'online' attribute).
  [S390] cio: use barrier() in stsch_reset.
  [S390] memory detection misses 128k.

2 files changed, 5 insertions, 9 deletions

diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 1678b6c757ec..a420cd099041 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -117,7 +117,7 @@ vmcp_write(struct file *file, const char __user * buff, size_t count,
                 return -ENOMEM;
         }
         debug_text_event(vmcp_debug, 1, cmd);
-        session->resp_size = __cpcmd(cmd, session->response,
+        session->resp_size = cpcmd(cmd, session->response,
                                      session->bufsize,
                                      &session->resp_code);
         up(&session->mutex);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index b471ac4a1bf6..ae1bf231d089 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -880,19 +880,15 @@ static void cio_reset_pgm_check_handler(void)
 static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr)
 {
         int rc;
-        register struct subchannel_id reg1 asm ("1") = schid;
 
         pgm_check_occured = 0;
         s390_reset_pgm_handler = cio_reset_pgm_check_handler;
+        rc = stsch(schid, addr);
+        s390_reset_pgm_handler = NULL;
 
-        asm volatile(
-                "       stsch   0(%2)\n"
-                "       ipm     %0\n"
-                "       srl     %0,28"
-                : "=d" (rc)
-                : "d" (reg1), "a" (addr), "m" (*addr) : "memory", "cc");
+        /* The program check handler could have changed pgm_check_occured */
+        barrier();
 
-        s390_reset_pgm_handler = NULL;
         if (pgm_check_occured)
                 return -EIO;
         else