Safer ABI for O_TMPFILE

[linux-block.git] / include / uapi / asm-generic / fcntl.h

diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index 06632beaa6d515d80fc2a62c5ddca455c964e0a3..05ac354e124de3e4577667ebf292002f40f45579 100644 (file)
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -84,10 +84,14 @@
 #define O_PATH         010000000
 #endif
 
-#ifndef O_TMPFILE
-#define O_TMPFILE      020000000
+#ifndef __O_TMPFILE
+#define __O_TMPFILE    020000000
 #endif
 
+/* a horrid kludge trying to make sure that this will fail on old kernels */
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY | O_RDWR)
+#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT | O_ACCMODE)      
+
 #ifndef O_NDELAY
 #define O_NDELAY       O_NONBLOCK
 #endif