linux-kernel - Re: [ 117/171] libceph: drop ceph_con

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Date:	Mon, 26 Nov 2012 10:55:17 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	alan@...rguk.ukuu.org.uk, Sage Weil <sage@...tank.com>,
	Alex Elder <elder@...tank.com>
Subject: Re: [ 117/171] libceph: drop ceph_con_get/put helpers and nref member

On Fri, Nov 23, 2012 at 11:41:47AM -0200, Herton Ronaldo Krzesinski wrote:
> On Wed, Nov 21, 2012 at 04:41:03PM -0800, Greg Kroah-Hartman wrote:
> > 3.4-stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Sage Weil <sage@...tank.com>
> > 
> > (cherry picked from commit d59315ca8c0de00df9b363f94a2641a30961ca1c)
> > 
> > These are no longer used.  Every ceph_connection instance is embedded in
> > another structure, and refcounts manipulated via the get/put ops.
> > 
> > Signed-off-by: Sage Weil <sage@...tank.com>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> [...]
> >  
> >  /*
> > - * generic get/put
> > - */
> > -struct ceph_connection *ceph_con_get(struct ceph_connection *con)
> > -{
> > -	int nref = __atomic_add_unless(&con->nref, 1, 0);
> > -
> > -	dout("con_get %p nref = %d -> %d\n", con, nref, nref + 1);
> > -
> > -	return nref ? con : NULL;
> > -}
> > -
> > -void ceph_con_put(struct ceph_connection *con)
> > -{
> > -	int nref = atomic_dec_return(&con->nref);
> > -
> > -	BUG_ON(nref < 0);
> > -	if (nref == 0) {
> > -		BUG_ON(con->sock);
> > -		kfree(con);
> > -	}
> > -	dout("con_put %p nref = %d -> %d\n", con, nref + 1, nref);
> > -}
> > -
> > -/*
> >   * initialize a new connection.
> 
> Although harmless in functionality not having it, may be it would be
> good to also apply with this also the following commit:
> 
> commit 261030215d970c62f799e6e508e3c68fc7ec2aa9
> Author: Alex Elder <elder@...tank.com>
> Date:   Thu Jun 21 12:49:23 2012 -0700
> 
>     libceph: drop declaration of ceph_con_get()
> 
>     For some reason the declaration of ceph_con_get() and
>     ceph_con_put() did not get deleted in this commit:
>         d59315ca libceph: drop ceph_con_get/put helpers and nref member
>     
>     Clean that up.

Ok, now added, thanks.

greg k-h
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