linux-kernel - [PATCH 6/8] fs: make direct-io.c explicitly non-modular

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Date:	Thu, 17 Dec 2015 14:11:04 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	<linux-fsdevel@...r.kernel.org>
Subject: [PATCH 6/8] fs: make direct-io.c explicitly non-modular

The Makefile currently controlling compilation of this code has:

ifeq ($(CONFIG_BLOCK),y)
obj-y +=        buffer.o block_dev.o direct-io.o mpage.o

and in addition to that the Kconfig is:

block/Kconfig:menuconfig BLOCK
block/Kconfig:       bool "Enable the block layer" if EXPERT

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modularity so that when reading the
code there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering gets bumped to one level earlier when we
use the more appropriate fs_initcall here.  However we've made similar
changes before without any fallout and none is expected here either.

Cc: Alexander Viro <viro@...iv.linux.org.uk>
Cc: linux-fsdevel@...r.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 fs/direct-io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 602e8441bc0f..a7d7b466f00e 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -20,7 +20,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/types.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
@@ -1349,4 +1349,4 @@ static __init int dio_init(void)
 	dio_cache = KMEM_CACHE(dio, SLAB_PANIC);
 	return 0;
 }
-module_init(dio_init)
+fs_initcall(dio_init)
-- 
2.6.1

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