On Thu, Jun 09, David Vrabel wrote:
> Why don't you get the udev rule to read the xenstore key directly instead?
Good point. Something like this does indeed work:
c170:~ # cd -P /sys/block/xvda/device ; d=${PWD##*/} ; xenstore-read
`xenstore-read device/${d/-/\/}/backend`/dev
hda
c170:/sys/devi
On 09/06/16 17:43, Olaf Hering wrote:
> From: Jeff Mahoney
>
> This patch creates a sysfs group to export blkfront attribute via sysfs.
> For now, we just export the backend device name.
>
> This helps with migrating existing domU installation from a xenlinux
> based kernel to a pvops based kern
On Thu, Jun 09, Olaf Hering wrote:
> The value of "vdev" is cached to avoid the load caused by constant
> rereading from the sysfs file.
For some reason I sent an earlier variant of the patch without caching.
If the approach is acceptable I will resend.
Olaf
From: Jeff Mahoney
This patch creates a sysfs group to export blkfront attribute via sysfs.
For now, we just export the backend device name.
This helps with migrating existing domU installation from a xenlinux
based kernel to a pvops based kernel. The old blkfront driver did
respect the vdev=hd|
