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authorDavid Hildenbrand <david@redhat.com>2020-06-26 09:22:35 +0200
committerMichael S. Tsirkin <mst@redhat.com>2020-07-02 05:54:59 -0400
commit5f1f1902f8e4020f27b4e35631a38c4e68d9be54 (patch)
treeba23f9fa54f4f49c0ac4629fdbadc1501279f9ef /dump
parentfee3f3baff12e78f544db51cc16ef028b8fe03a9 (diff)
migration/rdma: Use ram_block_discard_disable()
RDMA will pin all guest memory (as documented in docs/rdma.txt). We want to disable RAM block discards - however, to keep it simple use ram_block_discard_is_required() instead of inhibiting. Note: It is not sufficient to limit disabling to pin_all. Even when only conditionally pinning 1 MB chunks, as soon as one page within such a chunk was discarded and one page not, the discarded pages will be pinned as well. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Juan Quintela <quintela@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20200626072248.78761-9-david@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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