On Wed, Nov 24, 2021 at 04:19:55PM +0800, Muchun Song wrote: > PDE_DATA(inode) is introduced to get user private data and hide the > layout of struct proc_dir_entry. The inode->i_private is used to do > the same thing as well. Save a copy of user private data to inode-> > i_private when proc inode is allocated. This means the user also can > get their private data by inode->i_private. > > Introduce pde_data() to wrap inode->i_private so that we can remove > PDE_DATA() from fs/proc/generic.c and make PTE_DATE() as a wrapper > of pde_data(). It will be easier if we decide to remove PDE_DATE() > in the future. > > Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > --- Seems like a good idea to me. Acked-by: Christian Brauner <christian.brauner@xxxxxxxxxx>