---

yaml --- r: 64855 b: refs/heads/master c: b868868 h: refs/heads/master i: 64853: c8d5837 64851: b16bc8c 64847: b32dbde v: v3
git-mirror · Sep 11, 2007 · cd0c61f · cd0c61f
1 parent 9754d58
commit cd0c61f
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 01e9943c79ad4edb2c0b76c99029e34d704223ce
+refs/heads/master: b868868ae0f7272228c95cc760338ffe35bb739d
diff --git a/trunk/arch/mips/mm/init.c b/trunk/arch/mips/mm/init.c
@@ -8,6 +8,7 @@
  * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
  */
+#include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/signal.h>
@@ -132,6 +133,8 @@ void *kmap_coherent(struct page *page, unsigned long addr)
 	pte_t pte;
 	int tlbidx;
 
+	BUG_ON(Page_dcache_dirty(page));
+
 	inc_preempt_count();
 	idx = (addr >> PAGE_SHIFT) & (FIX_N_COLOURS - 1);
 #ifdef CONFIG_MIPS_MT_SMTC
@@ -208,7 +211,7 @@ void copy_user_highpage(struct page *to, struct page *from,
 	void *vfrom, *vto;
 
 	vto = kmap_atomic(to, KM_USER1);
-	if (cpu_has_dc_aliases) {
+	if (cpu_has_dc_aliases && !Page_dcache_dirty(from)) {
 		vfrom = kmap_coherent(from, vaddr);
 		copy_page(vto, vfrom);
 		kunmap_coherent();