regulator: Let drivers know when they use the stub API

[safe/jmp/linux-2.6] / include / asm-generic / fcntl.h

diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 0c3dd86..fcd268c 100644 (file)
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -3,8 +3,6 @@
 
 #include <linux/types.h>
 
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
 #define O_ACCMODE      00000003
 #define O_RDONLY       00000000
 #define O_WRONLY       00000001
@@ -27,8 +25,8 @@
 #ifndef O_NONBLOCK
 #define O_NONBLOCK     00004000
 #endif
-#ifndef O_SYNC
-#define O_SYNC         00010000
+#ifndef O_DSYNC
+#define O_DSYNC                00010000        /* used to be O_SYNC, see below */
 #endif
 #ifndef FASYNC
 #define FASYNC         00020000        /* fcntl, for BSD compatibility */
@@ -51,6 +49,25 @@
 #ifndef O_CLOEXEC
 #define O_CLOEXEC      02000000        /* set close_on_exec */
 #endif
+
+/*
+ * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag.  We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics.  It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#ifndef O_SYNC
+#define __O_SYNC       04000000
+#define O_SYNC         (__O_SYNC|O_DSYNC)
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY       O_NONBLOCK
 #endif
@@ -73,14 +90,23 @@
 #define F_SETSIG       10      /* for sockets. */
 #define F_GETSIG       11      /* for sockets. */
 #endif
+
+#ifndef CONFIG_64BIT
+#ifndef F_GETLK64
+#define F_GETLK64      12      /*  using 'struct flock64' */
+#define F_SETLK64      13
+#define F_SETLKW64     14
+#endif
+#endif
+
 #ifndef F_SETOWN_EX
-#define F_SETOWN_EX    12
-#define F_GETOWN_EX    13
+#define F_SETOWN_EX    15
+#define F_GETOWN_EX    16
 #endif
 
 #define F_OWNER_TID    0
 #define F_OWNER_PID    1
-#define F_OWNER_GID    2
+#define F_OWNER_PGRP   2
 
 struct f_owner_ex {
        int     type;
@@ -139,12 +165,6 @@ struct flock {
 
 #ifndef CONFIG_64BIT
 
-#ifndef F_GETLK64
-#define F_GETLK64      12      /*  using 'struct flock64' */
-#define F_SETLK64      13
-#define F_SETLKW64     14
-#endif
-
 #ifndef HAVE_ARCH_STRUCT_FLOCK64
 #ifndef __ARCH_FLOCK64_PAD
 #define __ARCH_FLOCK64_PAD