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From: Pankaj Gupta <pagupta@redhat.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: amit@kernel.org, mst@redhat.com, arnd@arndb.de,
	virtualization@lists.linux-foundation.org, jasowang@redhat.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] virtio_ring: packed ring: fix virtqueue_detach_unused_buf
Date: Thu, 8 Aug 2019 08:28:46 -0400 (EDT)	[thread overview]
Message-ID: <1512438873.7425183.1565267326035.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <20190808115630.GB2015@kroah.com>



> > This patch makes packed ring code compatible with split ring in function
> > 'virtqueue_detach_unused_buf_*'.
> 
> What does that mean?  What does this "fix"?

Patch 1 frees the buffers When a port is unplugged from the virtio
console device. It does this with the help of 'virtqueue_detach_unused_buf_split/packed'
function. For split ring case, corresponding function decrements avail ring index.
For packed ring code, this functionality is not available, so this patch adds the
required support and hence help to remove the unused buffer completely.

Thanks,
Pankaj  

> 
> thanks,
> 
> greg k-h
> 

  reply	other threads:[~2019-08-08 12:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-08 11:36 [PATCH v2 0/2] virtio_console: fix replug of virtio console port Pankaj Gupta
2019-08-08 11:36 ` [PATCH v2 1/2] virtio_console: free unused buffers with port delete Pankaj Gupta
2019-08-08 11:55   ` Greg KH
2019-08-08 12:19     ` Pankaj Gupta
2019-08-08 11:36 ` [PATCH v2 2/2] virtio_ring: packed ring: fix virtqueue_detach_unused_buf Pankaj Gupta
2019-08-08 11:56   ` Greg KH
2019-08-08 12:28     ` Pankaj Gupta [this message]
2019-08-08 12:42       ` Greg KH
2019-08-08 12:44         ` Pankaj Gupta

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