linux-kernel - Re: [PATCH v4 04/12] auto-fs: rename d_count field of dentry to d

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Date:	Thu, 04 Jul 2013 10:47:42 -0400
From:	Waiman Long <waiman.long@...com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Alexander Viro <viro@...iv.linux.org.uk>,
	Jeff Layton <jlayton@...hat.com>,
	Miklos Szeredi <mszeredi@...e.cz>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ian Kent <raven@...maw.net>,
	autofs mailing list <autofs@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Chandramouleeswaran, Aswin" <aswin@...com>,
	"Norton, Scott J" <scott.norton@...com>
Subject: Re: [PATCH v4 04/12] auto-fs: rename d_count field of dentry to d_refcount

On 07/03/2013 11:50 PM, Linus Torvalds wrote:
> On Wed, Jul 3, 2013 at 8:33 PM, Waiman Long<Waiman.Long@...com>  wrote:
>> Because of the d_count name change made in dcache.h, all references
>> to d_count have to be changed to d_refcount.  There is no change in
>> logic and everything should just work.
> These filesystem patches need to be just joined into the same patch
> that does the d_count ->  d_refcount change.
>
> Otherwise the kernel won't build in lots of configurations for some
> commits, which makes things like bisecting much more painful than it
> should be.
>
> So we can't do piece-meal changes that break the build for parts of the tree.
>
>                Linus

I could change patch 3 so that I keep the d_count name, but #define 
d_refcount to d_count. In that way, I can do piece-meal changes without 
breaking the build. Alternatively, I could collapse patches 3-11 into a 
single big patch which will be harder to review.

Regards,
Longman
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