Re: How to handle non-local renames?

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On Thu, 28 Sep 2006 14:24:45 -0400 Trond Myklebust wrote:

> On Thu, 2006-09-28 at 15:20 +0100, Al Viro wrote:
> > On Thu, Sep 28, 2006 at 09:31:59AM -0400, Trond Myklebust wrote:
> > 
> > > Furthermore, it would upset a lot of people to change the current
> > > behaviour which does support remote rename, and has supported it for the
> > > past 10 years at least. I'd therefore prefer to go for a workaround that
> > > addresses the problem of the deadlocks instead of the useful
> > > functionality.
> > 
> > OK...  I'll look into your variant again when I get some sleep - I'm
> > afraid that there are remaining holes, but right now I'm not in any
> > condition to verify that (or prove that there's none)...  Later tonight...
> 
> Argh... We are going to need to hold the i_mutex of the parent of the
> alias too. If not, other processes that are in the middle of an rmdir
> will break.
> 
> Please scrap the old patch. This one should follow all the VFS locking
> rules, and error out when there is a conflict.

-/**
- * d_move - move a dentry
+/*

Why not leave this as kernel-doc?  (using "/**")

+ * d_move_locked - move a dentry
  * @dentry: entry to move
  * @target: new dentry

---
~Randy
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