proc: Move proc_fd() to fs/proc/fd.h

Move proc_fd() to fs/proc/fd.h.

Signed-off-by: David Howells <[e-mail]>
Signed-off-by: Al Viro <[e-mail]>

fs/proc/fd.h

···
 
 extern int proc_fd_permission(struct inode *inode, int mask);
 
+static inline int proc_fd(struct inode *inode)
+{
+	return PROC_I(inode)->fd;
+}
+
 #endif /* __PROCFS_FD_H__ */

fs/proc/internal.h

···
 	return get_pid_task(proc_pid(inode), PIDTYPE_PID);
 }
 
-static inline int proc_fd(struct inode *inode)
-{
-	return PROC_I(inode)->fd;
-}
-
 static inline int task_dumpable(struct task_struct *task)
 {
 	int dumpable = 0;