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Re: [PATCH v3] migration: clear the memory region dirty bitmap when skip


From: David Hildenbrand
Subject: Re: [PATCH v3] migration: clear the memory region dirty bitmap when skipping free pages
Date: Thu, 22 Jul 2021 11:47:41 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 22.07.21 10:30, Wei Wang wrote:
When skipping free pages to send, their corresponding dirty bits in the
memory region dirty bitmap need to be cleared. Otherwise the skipped
pages will be sent in the next round after the migration thread syncs
dirty bits from the memory region dirty bitmap.

Cc: David Hildenbrand <david@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
---
  migration/ram.c | 74 +++++++++++++++++++++++++++++++++++++------------
  1 file changed, 56 insertions(+), 18 deletions(-)


LGTM, thanks

Reviewed-by: David Hildenbrand <david@redhat.com>

--
Thanks,

David / dhildenb




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