Re: [git pull] more vfs bits

[Al Viro <viro@ZenIV.linux.org.uk>]

On Sun, Feb 22, 2015 at 02:02:07AM +0000, Al Viro wrote:
> Hmm...  ..._once() variants are trivially dropped, IMO.  dentry_inode_once()
> is so bloody special that it *SHOULD* stick out; we don't have any places
> like that, anyway.
> 
> I'm somewhat tempted to do this:
> fs_inode -> d_inode
> fs_inode_once ->d_inode_rcu (it's not quite ->d_revalidate()-only, there's
> a bit in autofs ->d_manage() as well)
> dentry_inode -> something. d_opened_inode() might do, but I'm not sure -
> still sounds a bit wrong to me.  What it's about is "the actual fs object
> behind this name, maybe from upper fs, maybe showing through from underlying
> layer".  It's not always opened; it's what we'd get if we opened it (and
> hadn't triggered any copyups, that is).  E.g. sys_getxattr() would want to
> use that, even if nobody has opened that sucker yet, etc.

*snort*

d_inode/d_inode_rcu/[d_]inode_here(), perhaps? ;-)