From 22cd25ed31bbf849acaa06ab220dc4f526153f13 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 12 Feb 2007 00:51:38 -0800
Subject: [PATCH] Add NOPFN_REFAULT result from vm_ops->nopfn()

Add a NOPFN_REFAULT return code for vm_ops->nopfn() equivalent to
NOPAGE_REFAULT for vmops->nopage() indicating that the handler requests a
re-execution of the faulting instruction

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/linux')

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 903f3b71f4a7..a0eec16eb0bd 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -637,6 +637,7 @@ static inline int page_mapped(struct page *page)
  */
 #define NOPFN_SIGBUS	((unsigned long) -1)
 #define NOPFN_OOM	((unsigned long) -2)
+#define NOPFN_REFAULT	((unsigned long) -3)
 
 /*
  * Different kinds of faults, as returned by handle_mm_fault().
-- 
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