On Mon, Jun 27, 2016 at 04:33:24PM +0800, Bob Liu wrote: > Uncompleted reqs used to be 'saved and resubmitted' in blkfront_recover() > during > migration, but that's too later after multi-queue introduced. > > After a migrate to another host (which may not have multiqueue support), the > number of rings (block hardware queues) may be changed and the ring and shadow > structure will also be reallocated. > So that blkfront_recover() can't 'save and resubmit' the real uncompleted reqs > because shadow structure has been reallocated. > > This patch fixes this issue by moving the 'save and resubmit' logic out of > blkfront_recover() to earlier place:blkfront_resume(). > > Signed-off-by: Bob Liu <bob....@oracle.com>
Ack-ed and Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> Let me run it through some tests and if no regressions found I will ask Jens to pull it.
