[PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6]

Create a new header file, fs/internal.h, for common definitions local to the
sources in the fs/ directory.

Move extern definitions that should be in header files from fs/*.c to
fs/internal.h or other main header files where they span directories.

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fs/char_dev.c b/fs/char_dev.c
index 1f3285a..a885f46 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -24,6 +24,7 @@
 #ifdef CONFIG_KMOD
 #include <linux/kmod.h>
 #endif
+#include "internal.h"
 
 /*
  * capabilities for /dev/mem, /dev/kmem and similar directly mappable character