sparc64: Convert NGcopy_{from,to}_user to accurate exception reporting.

Report the exact number of bytes which have not been successfully copied when an exception occurs, using the running remaining length. Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Oct 25, 2016 · 7ae3aaf · 7ae3aaf
1 parent 9570770
commit 7ae3aaf
Show file tree

Hide file tree

Showing 3 changed files with 162 additions and 79 deletions.
diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S
@@ -3,11 +3,11 @@
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_LD(x)		\
+#define EX_LD(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __ret_mone_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;
 

diff --git a/arch/sparc/lib/NGcopy_to_user.S b/arch/sparc/lib/NGcopy_to_user.S
@@ -3,11 +3,11 @@
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
  */
 
-#define EX_ST(x)		\
+#define EX_ST(x,y)		\
 98:	x;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __ret_mone_asi;\
+	.word 98b, y;		\
 	.text;			\
 	.align 4;