linux-kernel - Re: linux-next: manual merge of the ceph tree with Linus' tree

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Message-ID: <20120111013127.GE23916@ZenIV.linux.org.uk>
Date:	Wed, 11 Jan 2012 01:31:27 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Sage Weil <sage@...dream.net>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, Alex Elder <elder@...amhost.com>
Subject: Re: linux-next: manual merge of the ceph tree with Linus' tree

On Wed, Jan 11, 2012 at 12:27:44PM +1100, Stephen Rothwell wrote:
> Hi Sage,
> 
> Today's linux-next merge of the ceph tree got a conflict in
> fs/ceph/super.c between commit 3c5184ef1216 ("ceph: d_alloc_root() may
> fail") from Linus' tree and commit 26d913cdd955 ("ceph: always initialize
> the dentry in open_root_dentry()") from the ceph tree.
> 
> I fixed it up (see below) and can carry the fix as necessary.

Ahem...  

>  +			root = d_obtain_alias(inode);
>  +		}
> + 		ceph_init_dentry(root);

What will happen if dentry returned by d_obtain_alias() had already existed?
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