From fe77ba6f4f97690baa4c756611a07f3cc033f6ae Mon Sep 17 00:00:00 2001
From: Carsten Otte <cotte@de.ibm.com>
Date: Thu, 23 Jun 2005 22:05:29 -0700
Subject: [PATCH] xip: madvice/fadvice: execute in place

Make sys_madvice/fadvice return sane with xip.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/fadvise.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'mm/fadvise.c')

diff --git a/mm/fadvise.c b/mm/fadvise.c
index 57264d74b8bf..5f19e87bc5af 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -43,6 +43,10 @@ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice)
 		goto out;
 	}
 
+	if (mapping->a_ops->get_xip_page)
+		/* no bad return value, but ignore advice */
+		goto out;
+
 	/* Careful about overflows. Len == 0 means "as much as possible" */
 	endbyte = offset + len;
 	if (!len || endbyte < len)
-- 
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