linux-kernel - Re: [PATCH v2 5/6] Btrfs: unify subvol= and subvolid= mounting

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Message-ID: <20150511161004.GT23255@twin.jikos.cz>
Date:	Mon, 11 May 2015 18:10:04 +0200
From:	David Sterba <dsterba@...e.cz>
To:	Omar Sandoval <osandov@...ndov.com>
Cc:	Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
	David Sterba <dsterba@...e.cz>, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, Qu Wenruo <quwenruo@...fujitsu.com>
Subject: Re: [PATCH v2 5/6] Btrfs: unify subvol= and subvolid= mounting

On Thu, Apr 09, 2015 at 02:34:55PM -0700, Omar Sandoval wrote:
> Currently, mounting a subvolume with subvolid= takes a different code
> path than mounting with subvol=. This isn't really a big deal except for
> the fact that mounts done with subvolid= or the default subvolume don't
> have a dentry that's connected to the dentry tree like in the subvol=
> case. To unify the code paths, when given subvolid= or using the default
> subvolume ID, translate it into a subvolume name by walking
> ROOT_BACKREFs in the root tree and INODE_REFs in the filesystem trees.
> 
> Signed-off-by: Omar Sandoval <osandov@...ndov.com>

Reviewed-by: David Sterba <dsterba@...e.cz>
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