On 20.05.25 12:28, Chenyi Qiang wrote:
Modify memory_region_set_ram_discard_manager() to return -EBUSY if a
RamDiscardManager is already set in the MemoryRegion. The caller must
handle this failure, such as having virtio-mem undo its actions and fail
the realize() process. Opportunistically move the call earlier to avoid
complex error handling.
This change is beneficial when introducing a new RamDiscardManager
instance besides virtio-mem. After
ram_block_coordinated_discard_require(true) unlocks all
RamDiscardManager instances, only one instance is allowed to be set for
one MemoryRegion at present.
Suggested-by: David Hildenbrand <da...@redhat.com>
Signed-off-by: Chenyi Qiang <chenyi.qi...@intel.com>
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Reviewed-by: David Hildenbrand <da...@redhat.com>
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Cheers,
David / dhildenb
