linux-kernel - Re: [PATCH 0/3] xen/blkback: several fixes of resource management

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Message-ID: <bd062fe4-9d62-25ab-42f7-8d5d64c7a19b@suse.com>
Date:   Thu, 18 May 2017 17:04:18 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Roger Pau Monné <roger.pau@...rix.com>
Cc:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        konrad.wilk@...cle.com, netwiz@....id.au
Subject: Re: [PATCH 0/3] xen/blkback: several fixes of resource management

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@...rix.com>
> 
> The comment reported by Dietmar in patch #1 would be nice to fix.

Okay, I'll send V2 soon.


Juergen