X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Ffadvise.c;h=3c0f1e99f5e40ad90a116f62a39ca1e0ca3f5fa7;hb=135dee0cd0eb2638fab899b428e51f00e8c046a8;hp=0df4c899e979ec1101cb629a660fc04b31e1095e;hpb=40b20c257a13c5a526ac540bc5e43d0fdf29792a;p=linux-2.6-omap-h63xx.git

diff --git a/mm/fadvise.c b/mm/fadvise.c
index 0df4c899e97..3c0f1e99f5e 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -49,9 +49,21 @@ 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 */
+	if (mapping->a_ops->get_xip_page) {
+		switch (advice) {
+		case POSIX_FADV_NORMAL:
+		case POSIX_FADV_RANDOM:
+		case POSIX_FADV_SEQUENTIAL:
+		case POSIX_FADV_WILLNEED:
+		case POSIX_FADV_NOREUSE:
+		case POSIX_FADV_DONTNEED:
+			/* no bad return value, but ignore advice */
+			break;
+		default:
+			ret = -EINVAL;
+		}
 		goto out;
+	}
 
 	/* Careful about overflows. Len == 0 means "as much as possible" */
 	endbyte = offset + len;