From: Juergen Gross <jgross@suse.com>
To: Greg KH <greg@kroah.com>
Cc: stable@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: Re: [PATCH] xen/blkfront: fix bug in backported patch
Date: Thu, 23 Dec 2021 14:40:38 +0100 [thread overview]
Message-ID: <9823fe0a-2db4-bc4b-2d7c-6363856322ff@suse.com> (raw)
In-Reply-To: <YcRWNWtraLXt9W8v@kroah.com>
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On 23.12.21 11:57, Greg KH wrote:
> On Thu, Dec 23, 2021 at 11:53:08AM +0100, Juergen Gross wrote:
>> The backport of commit 8f5a695d99000fc ("xen/blkfront: don't take local
>> copy of a request from the ring page") to stable 4.4 kernel introduced
>> a bug when adding the needed blkif_ring_get_request() function, as
>> info->ring.req_prod_pvt was incremented twice now.
>>
>> Fix that be deleting the now superfluous increments after calling that
>> function.
>>
>> Signed-off-by: Juergen Gross <jgross@suse.com>
>> ---
>> drivers/block/xen-blkfront.c | 4 ----
>> 1 file changed, 4 deletions(-)
>
> So this is only needed in 4.4.y? No other backports were incorrect?
Yes. 4.4 only.
Juergen
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next prev parent reply other threads:[~2021-12-23 13:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-23 10:53 [PATCH] xen/blkfront: fix bug in backported patch Juergen Gross
2021-12-23 10:57 ` Greg KH
2021-12-23 13:40 ` Juergen Gross [this message]
2021-12-27 12:43 ` Greg KH
2021-12-27 13:22 ` Patch "xen/blkfront: fix bug in backported patch" has been added to the 4.4-stable tree gregkh
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