kernfs: add kernfs_open_file->priv

Add a private data field to be used by kernfs file operations.  This
generally makes sense and will be used by cgroup.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2014-02-03 14:09:14 -05:00 committed by Greg Kroah-Hartman
parent 4d3773c4bb
commit 2536390da0

View File

@ -146,6 +146,7 @@ struct kernfs_open_file {
/* published fields */
struct kernfs_node *kn;
struct file *file;
void *priv;
/* private fields, do not use outside kernfs proper */
struct mutex mutex;