Hello, Serge.

On Thu, Nov 26, 2015 at 11:17:45PM -0600, Serge E. Hallyn wrote:

quoted

Wouldn't it be simpler to walk dentry from kernfs root than
duplicating dentry instantiation?

Sorry I don't think I'm following.  Are you suggesting walking the
kn->parent chain backward and doing d_lookup() at each point starting
with sb->s_root?

Yeah, something like that.  I wonder whether there are already code
paths doing that.  What we need is a straight path walk.  I could be
wrong but it shouldn't be that complex and if it works out we can
avoid introducing another instantiation / lookup path.

Thanks.

-- 
tejun