[patch 3/8] inode-diet: Move i_bdev into a union

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Move the i_bdev pointer in struct inode into a union.

Signed-off-by: "Theodore Ts'o" <[email protected]>


Index: linux-2.6.17-mm5/include/linux/fs.h
===================================================================
--- linux-2.6.17-mm5.orig/include/linux/fs.h	2006-07-02 20:28:45.000000000 -0400
+++ linux-2.6.17-mm5/include/linux/fs.h	2006-07-02 20:28:55.000000000 -0400
@@ -526,8 +526,8 @@
 	struct list_head	i_devices;
 	union {
 		struct pipe_inode_info	*i_pipe;
+		struct block_device	*i_bdev;
 	};
-	struct block_device	*i_bdev;
 	struct cdev		*i_cdev;
 	int			i_cindex;
 
Index: linux-2.6.17-mm5/fs/inode.c
===================================================================
--- linux-2.6.17-mm5.orig/fs/inode.c	2006-07-02 20:27:00.000000000 -0400
+++ linux-2.6.17-mm5/fs/inode.c	2006-07-02 20:28:55.000000000 -0400
@@ -254,7 +254,7 @@
 	DQUOT_DROP(inode);
 	if (inode->i_sb && inode->i_sb->s_op->clear_inode)
 		inode->i_sb->s_op->clear_inode(inode);
-	if (inode->i_bdev)
+	if (S_ISBLK(inode->i_mode) && inode->i_bdev)
 		bd_forget(inode);
 	if (inode->i_cdev)
 		cd_forget(inode);

--
-
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