Re: [PATCH v18 21/22] ext4: Add richacl support

[Christoph Hellwig]

On Mon, Mar 14, 2016 at 02:02:33PM +0100, Andreas Gruenbacher wrote:
> On Fri, Mar 11, 2016 at 3:27 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> >> +static inline int
> >> +ext4_acl_chmod(struct inode *inode, umode_t mode)
> >> +{
> >> +     if (IS_RICHACL(inode))
> >> +             return richacl_chmod(inode, inode->i_mode);
> >> +     return posix_acl_chmod(inode, inode->i_mode);
> >> +}
> >
> > Thi isn't ext4-specific and potentially duplicated in every caller.
> > Please provide this as a common helper.
> 
> This can go in neither fs.h nor posix_acl.h nor richacl.h unless we
> turn it into a macro, and I don't think we want to add a new header
> file for such extreme trivia.

I'd expect us to grow a few more of thos helper if we get the sharing
right (either a real common base object, or wrappers for anything
dealing with the acl pointers in the inode), so a new linux/acl.h
should be fine.