1 files changed, 11 insertions, 24 deletions

diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 44f0cda7e72e..f2b9a84dc2bf 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -355,6 +355,7 @@ out_of_memory:
         up_read(&mm->mmap_sem);
         if (tsk->pid == 1) {
                 yield();
+                down_read(&mm->mmap_sem);
                 goto survive;
         }
         printk("VM: killing process %s\n", tsk->comm);
@@ -423,20 +424,13 @@ int pfault_init(void)
 
         if (pfault_disable)
                 return -1;
-        __asm__ __volatile__(
-                "    diag  %1,%0,0x258\n"
-                "0:  j     2f\n"
-                "1:  la    %0,8\n"
+        asm volatile(
+                "       diag    %1,%0,0x258\n"
+                "0:     j       2f\n"
+                "1:     la      %0,8\n"
                 "2:\n"
-                ".section __ex_table,\"a\"\n"
-                "   .align 4\n"
-#ifndef CONFIG_64BIT
-                "   .long  0b,1b\n"
-#else /* CONFIG_64BIT */
-                "   .quad  0b,1b\n"
-#endif /* CONFIG_64BIT */
-                ".previous"
-                : "=d" (rc) : "a" (&refbk), "m" (refbk) : "cc" );
+                EX_TABLE(0b,1b)
+                : "=d" (rc) : "a" (&refbk), "m" (refbk) : "cc");
         __ctl_set_bit(0, 9);
         return rc;
 }
@@ -449,18 +443,11 @@ void pfault_fini(void)
         if (pfault_disable)
                 return;
         __ctl_clear_bit(0,9);
-        __asm__ __volatile__(
-                "    diag  %0,0,0x258\n"
+        asm volatile(
+                "       diag    %0,0,0x258\n"
                 "0:\n"
-                ".section __ex_table,\"a\"\n"
-                "   .align 4\n"
-#ifndef CONFIG_64BIT
-                "   .long  0b,0b\n"
-#else /* CONFIG_64BIT */
-                "   .quad  0b,0b\n"
-#endif /* CONFIG_64BIT */
-                ".previous"
-                : : "a" (&refbk), "m" (refbk) : "cc" );
+                EX_TABLE(0b,0b)
+                : : "a" (&refbk), "m" (refbk) : "cc");
 }
 
 asmlinkage void