Re: [RFC] st_nlink after rmdir() and rename()

[Al Viro]

On Thu, Mar 03, 2011 at 01:02:50PM -0800, Linus Torvalds wrote:

> > So we have to simulate some levels. I guess you
> > are not saying we don't need to care it at all though.
> 
> I'm saying that it should just work to set i_nlink=1 and not do
> anything at all. Ever. It's a valid model for directory counts.

Sure, no problem.  Just leave that cleaning of i_nlink on victim
in unlink/rmdir/rename; we *really* rely on that in e.g. deciding
when to free the damn inode in fat_evict_inode().

We need to mark them for freeing _anyway_, right?  It doesn't depend
on what exact value do we keep for live directories - "everyone got 1
for as long as they live" is just fine, and IMO it's a win, but it's
an unrelated question.
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