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[PATCH] inode-diet: Move i_cdev into a union

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Move the i_cdev pointer in struct inode into a union.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Theodore Ts'o 2006-09-27 01:50:49 -07:00 committed by Linus Torvalds
parent eaf796e7ef
commit 577c4eb09d
3 changed files with 3 additions and 3 deletions
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2
fs/file_table.c
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@ -169,7 +169,7 @@ void fastcall __fput(struct file *file)
if (file->f_op && file->f_op->release)
file->f_op->release(inode, file);
security_file_free(file);
if (unlikely(inode->i_cdev != NULL))
if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL))
cdev_put(inode->i_cdev);
fops_put(file->f_op);
if (file->f_mode & FMODE_WRITE)

2
fs/inode.c
View file

@ -256,7 +256,7 @@ void clear_inode(struct inode *inode)
inode->i_sb->s_op->clear_inode(inode);
if (S_ISBLK(inode->i_mode) && inode->i_bdev)
bd_forget(inode);
if (inode->i_cdev)
if (S_ISCHR(inode->i_mode) && inode->i_cdev)
cd_forget(inode);
inode->i_state = I_CLEAR;
}

2
include/linux/fs.h
View file

@ -532,8 +532,8 @@ struct inode {
union {
struct pipe_inode_info *i_pipe;
struct block_device *i_bdev;
struct cdev *i_cdev;
};
struct cdev *i_cdev;
int i_cindex;
__u32 i_generation;