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Subject: Re: [PATCH 0/3] xen/blkback: several fixes of resource management
To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <roger.pau@citrix.com>
Cc: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
        konrad.wilk@oracle.com, netwiz@crc.id.au
References: <20170516062320.22008-1-jgross@suse.com>
 <20170518143831.x5ynvb6h4a7uxk4z@MacBook-Pro-de-Roger.local>
From: Juergen Gross <jgross@suse.com>
Message-ID: <bd062fe4-9d62-25ab-42f7-8d5d64c7a19b@suse.com>
Date: Thu, 18 May 2017 17:04:18 +0200
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On 18/05/17 16:38, Roger Pau Monné wrote:
> On Tue, May 16, 2017 at 08:23:17AM +0200, Juergen Gross wrote:
>> Destroying a Xen guest domain while it was doing I/Os via xen-blkback
>> leaked several resources, including references of the guest's memory
>> pages.
>>
>> This patch series addresses those leaks by correcting usage of
>> reference counts and the sequence when to free which resource.
>>
>> The series applies on top of commit 2d4456c73a487abe ("block:
>> xen-blkback: add null check to avoid null pointer dereference") in
>> Jens Axboe's tree kernel/git/axboe/linux-block.git
>>
>> Juergen Gross (3):
>>   xen/blkback: fix disconnect while I/Os in flight
>>   xen/blkback: don't free be structure too early
>>   xen/blkback: don't use xen_blkif_get() in xen-blkback kthread
> 
> All 3:
> 
> Acked-by: Roger Pau Monné <roger.pau@citrix.com>
> 
> The comment reported by Dietmar in patch #1 would be nice to fix.

Okay, I'll send V2 soon.


Juergen