[PATCH] mark address_space_operations const

Same as with already do with the file operations: keep them in .rodata and
prevents people from doing runtime patching.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ramfs/internal.h b/fs/ramfs/internal.h
index 3132376..c2bb58e 100644
--- a/fs/ramfs/internal.h
+++ b/fs/ramfs/internal.h
@@ -10,6 +10,6 @@
  */
 
 
-extern struct address_space_operations ramfs_aops;
+extern const struct address_space_operations ramfs_aops;
 extern const struct file_operations ramfs_file_operations;
 extern struct inode_operations ramfs_file_inode_operations;