On 04/14/2016 08:46 AM, Fam Zheng wrote:
On Thu, 04/14 08:04, Denis V. Lunev wrote:
unfortunately no. If the lock will be on the image file,
we will have get it on the target node on QEMU start
and re-acquire it in bdrv_invalidate_cache.
From my POW you should not get the lock if
BDRV_O_INACTIVE is set.
That is what I meant. :)
At source: Images are unlocked in bdrv_inactivate().
At destinition: Images are not locked if opened with BDRV_O_INACTIVE, and
are locked in bdrv_invalidate_cache() (at the INMIGRATE -> RUNNING switch).
Fam
it looks I have missed something. The above will work, but
I do not see clause where you set BDRV_O_NOLOCK when BDRV_O_INACTIVE
is set.
Do you mean that we will not reach bdrv_open_common with this flag
set?
Den
