X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Ffadvise.c;h=343cfdfebd9ea0931b9ac6c4e91ed61ba0262730;hb=0b1faeef5f9243bb5fc5713a34bbf1ceab0de562;hp=0df4c899e979ec1101cb629a660fc04b31e1095e;hpb=3be11c8f4f2fa194834c2e83540f34da442b8977;p=linux-2.6

diff --git a/mm/fadvise.c b/mm/fadvise.c
index 0df4c899e9..343cfdfebd 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_mem) {
+		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;