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

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Message-ID: <20170518143831.x5ynvb6h4a7uxk4z@MacBook-Pro-de-Roger.local>
Date:   Thu, 18 May 2017 15:38:31 +0100
From:   Roger Pau Monné <roger.pau@...rix.com>
To:     Juergen Gross <jgross@...e.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 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.

Roger.