Re: [Nbd] [PATCH 1/2] nbd: make nbd device wait for its users

From: Eric Blake
Date: Fri Jun 24 2016 - 09:40:42 EST


On 06/24/2016 03:29 AM, Markus Pargmann wrote:
> From: "Pranay Kr. Srivastava" <pranjas@xxxxxxxxx>
>
> When a timeout occurs or a recv fails, then instead of abruplty killing

s/abruplty/abruptly/

> nbd block device wait for it's users to finish.

s/it's/its/ (remember, "it's" is only usable where "it is" would also be
appropriate)

>
> This is more required when filesystem(s) like ext2 or ext3 don't expect
> their buffer heads to disappear while the filesystem is mounted.
>
> Each open is counted. The blockdevice is kept open until the last user
> closes the block device. This offers the possibility as well to open a
> new socket to be used while the filesystems are mounted.
>
> Signed-off-by: Pranay Kr. Srivastava <pranjas@xxxxxxxxx>
>
> [mpa: Keep the blockdevice open until all users left]
> Signed-off-by: Markus Pargmann <mpa@xxxxxxxxxxxxxx>



--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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