linux-kernel - [PATCH 18/36] drivers edac mod assert error check

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Date:	Sun, 3 Jun 2007 07:41:54 -0700 (PDT)
From:	Doug Thompson <norsk5@...oo.com>
To:	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: [PATCH 18/36] drivers edac mod assert error check

From:	Dave Jiang <djiang@...sta.com>

Change error check and clear variable from an atomic to an int


Signed-off-by: Dave Jiang <djiang@...sta.com>
Signed-off-by: Douglas Thompson <dougthompson@...ssion.com

---

Index: linux-2.6.21.1/drivers/edac/edac_mc.c
===================================================================
--- linux-2.6.21.1.orig/drivers/edac/edac_mc.c
+++ linux-2.6.21.1/drivers/edac/edac_mc.c
@@ -222,18 +222,15 @@ static struct mem_ctl_info *find_mci_by_
  */
 static int edac_mc_assert_error_check_and_clear(void)
 {
-	int vreg;
+	int old_state;
 
 	if(edac_op_state == EDAC_OPSTATE_POLL)
 		return 1;
 
-	vreg = atomic_read(&edac_err_assert);
-	if(vreg) {
-		atomic_set(&edac_err_assert, 0);
-		return 1;
-	}
+	old_state = edac_err_assert;
+	edac_err_assert = 0;
 
-	return 0;
+	return old_state;
 }
 
 /*
Index: linux-2.6.21.1/drivers/edac/edac_stub.c
===================================================================
--- linux-2.6.21.1.orig/drivers/edac/edac_stub.c
+++ linux-2.6.21.1/drivers/edac/edac_stub.c
@@ -20,7 +20,7 @@ EXPORT_SYMBOL(edac_op_state);
 atomic_t edac_handlers = ATOMIC_INIT(0);
 EXPORT_SYMBOL(edac_handlers);
 
-atomic_t edac_err_assert = ATOMIC_INIT(0);
+int edac_err_assert = 0;
 EXPORT_SYMBOL(edac_err_assert);
 
 inline int edac_handler_set(void)
@@ -37,6 +37,6 @@ EXPORT_SYMBOL(edac_handler_set);
  */
 inline void edac_atomic_assert_error(void)
 {
-	atomic_set(&edac_err_assert, 1);
+	edac_err_assert++;
 }
 EXPORT_SYMBOL(edac_atomic_assert_error);
Index: linux-2.6.21.1/include/linux/edac.h
===================================================================
--- linux-2.6.21.1.orig/include/linux/edac.h
+++ linux-2.6.21.1/include/linux/edac.h
@@ -20,8 +20,8 @@
 #define EDAC_OPSTATE_INT	2
 
 extern int edac_op_state;
+extern int edac_err_assert;
 extern atomic_t edac_handlers;
-extern atomic_t edac_err_assert;
 
 extern int edac_handler_set(void);
 extern void edac_atomic_assert_error(void);

-
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