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-rw-r--r--arch/frv/mm/highmem.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
new file mode 100644
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--- /dev/null
+++ b/arch/frv/mm/highmem.c
@@ -0,0 +1,33 @@
+/* highmem.c: arch-specific highmem stuff
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/highmem.h>
+
+void *kmap(struct page *page)
+{
+ might_sleep();
+ if (!PageHighMem(page))
+ return page_address(page);
+ return kmap_high(page);
+}
+
+void kunmap(struct page *page)
+{
+ if (in_interrupt())
+ BUG();
+ if (!PageHighMem(page))
+ return;
+ kunmap_high(page);
+}
+
+struct page *kmap_atomic_to_page(void *ptr)
+{
+ return virt_to_page(ptr);
+}
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