vfs: atomic f_pos accesses as per POSIX

[~andy/linux] / include / linux / file.h

diff --git a/include/linux/file.h b/include/linux/file.h
index cbacf4faf447a9dd2b3fd50d3dc2e4f86a120e67..f2517fa2d610524b9f887fb4fda11445220ffb1f 100644 (file)
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -28,12 +28,14 @@ static inline void fput_light(struct file *file, int fput_needed)
 
 struct fd {
        struct file *file;
-       int need_put;
+       unsigned int flags;
 };
+#define FDPUT_FPUT       1
+#define FDPUT_POS_UNLOCK 2
 
 static inline void fdput(struct fd fd)
 {
-       if (fd.need_put)
+       if (fd.flags & FDPUT_FPUT)
                fput(fd.file);
 }