linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / arch / s390 / lib / uaccess64.S

diff --git a/arch/s390/lib/uaccess64.S b/arch/s390/lib/uaccess64.S
index 2d42c7e..7fbe363 100644 (file)
--- a/arch/s390/lib/uaccess64.S
+++ b/arch/s390/lib/uaccess64.S
@@ -98,31 +98,30 @@ __copy_to_user_asm:
         .globl __copy_in_user_asm
        # %r2 = from, %r3 = n, %r4 = to
 __copy_in_user_asm:
-       aghi    %r3,-1
-       jo      6f
        sacf    256
-       bras    %r1,4f
-0:     aghi    %r3,257
-1:     mvc     0(1,%r4),0(%r2)
+       bras    1,1f
+       mvc     0(1,%r4),0(%r2)
+0:     mvc     0(256,%r4),0(%r2)
+       la      %r2,256(%r2)
+       la      %r4,256(%r4)
+1:     aghi    %r3,-256
+       jnm     0b
+2:     ex      %r3,0(%r1)
+       sacf    0
+       slgr    %r2,%r2
+       br      14
+3:     mvc     0(1,%r4),0(%r2)
        la      %r2,1(%r2)
        la      %r4,1(%r4)
        aghi    %r3,-1
-       jnz     1b
-2:     lgr     %r2,%r3
-       br      %r14
-3:     mvc     0(256,%r4),0(%r2)
-       la      %r2,256(%r2)
-       la      %r4,256(%r4)
-4:     aghi    %r3,-256
        jnm     3b
-5:     ex      %r3,4(%r1)
+4:     lgr     %r2,%r3
        sacf    0
-6:     slgr    %r2,%r2
-       br      14
+       br      %r14
         .section __ex_table,"a"
-       .quad   1b,2b
-       .quad   3b,0b
-       .quad   5b,0b
+       .quad   0b,3b
+       .quad   2b,3b
+       .quad   3b,4b
         .previous
 
         .align 4