linux-kernel - Re: [PATCH 00/13] cross rename v4

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Message-ID: <20140211160141.GD8204@tucsk.piliscsaba.szeredi.hu>
Date:	Tue, 11 Feb 2014 17:01:41 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	Dave Chinner <david@...morbit.com>
Cc:	viro@...IV.linux.org.uk, torvalds@...ux-foundation.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	bfields@...ldses.org, hch@...radead.org, akpm@...ux-foundation.org,
	dhowells@...hat.com, zab@...hat.com, jack@...e.cz,
	luto@...capital.net, mszeredi@...e.cz
Subject: Re: [PATCH 00/13] cross rename v4

On Mon, Feb 10, 2014 at 09:51:45PM +1100, Dave Chinner wrote:
> On Fri, Feb 07, 2014 at 05:48:58PM +0100, Miklos Szeredi wrote:
> > Changes since the last version (based on Al's review):
> > 
> >  - cross-rename: fix locking of nondirectories for NFSv4
> >  - ext4: split cross-rename and plain rename into separate functions
> >  - introduce i_op->rename2 with flags, don't touch ->rename
> >  - last (optional) patch to merge ->rename2 back into ->rename
> > 
> > The splitting of the ext4 implemetation was indeed a good idea as it uncovered a
> > memory leak and small inconsistencies with the merged implementation.
> > 
> > Splitting out rename2 will lessen the code churn, but I think is ugly.  However
> > this is a question of taste, last patch can be ommitted without loss of
> > functionality.
> > 
> > Bruce, could you please review the locking and delegation thing in patch #8
> > "vfs: add cross-rename"?
> > 
> > Git tree is here:
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git cross-rename
> 
> Miklos, can you please write an xfstest for this new API? That way
> we can verify that the behaviour is as documented, and we can ensure
> that when we implement it on other filesystems it works exactly the
> same on all filesystems?

Splendid idea.  Will do.

Thanks,
Miklos
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