[Xen-devel] Re: [PATCH] hotplug: allow hardlinked files for block device images

[Olaf Hering <olaf@xxxxxxxxx>]

Ping?


On Fri, Nov 26, Olaf Hering wrote:

> tools/hotplug/Linux/block change for this losetup -a output:
> (inode 12 is listed twice due to hardlinks)
> 
> /dev/loop0: [0809]:139267 (/abuild/vdisk-sles11_2-disk0)
> /dev/loop1: [0809]:139266 (/abuild/vdisk-sles11_1-disk1)
> /dev/loop3: [0809]:139267 (/abuild/vdisk-sles11_2-disk0)
> /dev/loop5: [0809]:139273 (/abuild/vdisk-sles11_5-disk1)
> /dev/loop8: [0809]:12 (/abuild/bootiso-xenpaging-sles11_5.iso)
> /dev/loop10: [0809]:12 (/abuild/bootiso-xenpaging-sles11_4.iso)
> /dev/loop11: [0809]:139271 (/abuild/vdisk-sles11_4-disk0)
> 
> Without this change, $dev would contain /dev/loop8\n/dev/loop10
> Applies to 4.0 and 4.1
> 
> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
> 
> ---
>  tools/hotplug/Linux/block |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> --- xen-4.0.1-testing.orig/tools/hotplug/Linux/block
> +++ xen-4.0.1-testing/tools/hotplug/Linux/block
> @@ -279,8 +279,8 @@ mount it read-write in a guest domain."
>              fatal "Unable to lookup $file: dev: $dev inode: $inode"
>            fi
>  
> -          shared_list=$(losetup -a | grep ' \[0*'${dev}'\]:'${inode} |
> -                cut -d : -f 1)
> +          shared_list=$(losetup -a |
> +                sed -n -e 
> "s@^\([^:]\+\)\(:[[:blank:]]\[${dev}\]:${inode}[[:blank:]](${file})\)@\1@p" )
>            for dev in "$shared_list"
>            do
>              if [ -n "$dev" ]

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