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0118c2d7e8
At present, BqlRefCell checks whether BQL is locked when it blocks BQL unlock (in bql_block_unlock). But the such check should be done earlier - at the beginning of BqlRefCell borrowing. So convert BqlRefCell::borrow field from Cell<> to BqlCell<>, to guarantee BQL is locked from the beginning when someone is trying to borrow BqlRefCell. Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20251113051937.4017675-6-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>