Move the i_cdev pointer in struct inode into a union.
Signed-off-by: "Theodore Ts'o" <[email protected]>
Index: linux-2.6.17/include/linux/fs.h
===================================================================
--- linux-2.6.17.orig/include/linux/fs.h 2006-06-18 19:46:10.000000000 -0400
+++ linux-2.6.17/include/linux/fs.h 2006-06-18 19:50:56.000000000 -0400
@@ -512,8 +512,8 @@
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;
Index: linux-2.6.17/fs/file_table.c
===================================================================
--- linux-2.6.17.orig/fs/file_table.c 2006-06-18 19:37:14.000000000 -0400
+++ linux-2.6.17/fs/file_table.c 2006-06-18 19:50:56.000000000 -0400
@@ -170,7 +170,7 @@
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)
Index: linux-2.6.17/fs/inode.c
===================================================================
--- linux-2.6.17.orig/fs/inode.c 2006-06-18 19:46:10.000000000 -0400
+++ linux-2.6.17/fs/inode.c 2006-06-18 19:50:56.000000000 -0400
@@ -257,7 +257,7 @@
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;
}
--
-
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