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From: David Sterba <dsterba@suse.cz>
To: Brendan Hide <brendan@swiftspirit.co.za>
Cc: Chris Mason <clm@fb.com>,
	linux-btrfs@vger.kernel.org, Miao Xie <miaox@cn.fujitsu.com>,
	Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Subject: Re: [PATCH 1/2] btrfs: protect snapshots from deleting during send
Date: Wed, 16 Apr 2014 17:22:39 +0200	[thread overview]
Message-ID: <20140416152239.GB29256@suse.cz> (raw)
In-Reply-To: <534E9ABD.4060300@swiftspirit.co.za>

On Wed, Apr 16, 2014 at 04:59:09PM +0200, Brendan Hide wrote:
> On 2014/04/16 03:40 PM, Chris Mason wrote:
> >So in my example with the automated tool, the tool really shouldn't be
> >deleting a snapshot where send is in progress.  The tool should be told
> >that snapshot is busy and try to delete it again later.
> >
> >It makes more sense now, 'll queue this up for 3.16 and we can try it out
> >in -next.
> >
> >-chris
> So ... does this mean the plan is to a) have userland tool give an error; or
> b) a deletion would be "scheduled" in the background for as soon as the send
> has completed?

b) is current state, a) is the plan

with the patch, 'btrfs subvol delete' would return EPERM/EBUSY

  reply	other threads:[~2014-04-16 15:22 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-15 14:41 [PATCH 0/2] Snapshot deletion vs send (for 3.15) David Sterba
2014-04-15 14:41 ` [PATCH 1/2] btrfs: protect snapshots from deleting during send David Sterba
2014-04-15 14:52   ` Chris Mason
2014-04-15 15:44     ` David Sterba
2014-04-15 16:00       ` Chris Mason
2014-04-15 16:27         ` David Sterba
2014-04-15 17:21           ` Chris Mason
2014-04-16 13:32             ` David Sterba
2014-04-16 13:40               ` Chris Mason
2014-04-16 14:59                 ` Brendan Hide
2014-04-16 15:22                   ` David Sterba [this message]
2014-04-26 12:16                     ` Brendan Hide
2014-04-16 15:18                 ` David Sterba
2014-05-12 13:52   ` Chris Mason
2014-04-15 14:42 ` [PATCH 2/2] btrfs: assert that send is not in progres before root deletion David Sterba

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