vm_kern: Avoid sign extension in the KVA_QUANTUM definition
Otherwise, on a powerpc64 NUMA system with hashed page tables, the first-level superpage reservation size is large enough that the value of the kernel KVA arena import quantum, KVA_NUMA_IMPORT_QUANTUM, is negative and gets sign-extended when passed to vmem_set_import(). This results in a boot-time hang on such platforms. Reported by: bdragon MFC after: 3 days
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@ -127,7 +127,7 @@ SYSCTL_ULONG(_vm, OID_AUTO, max_kernel_address, CTLFLAG_RD,
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/* On non-superpage architectures we want large import sizes. */
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#define KVA_QUANTUM_SHIFT (8 + PAGE_SHIFT)
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#endif
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#define KVA_QUANTUM (1 << KVA_QUANTUM_SHIFT)
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#define KVA_QUANTUM (1ul << KVA_QUANTUM_SHIFT)
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#define KVA_NUMA_IMPORT_QUANTUM (KVA_QUANTUM * 128)
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extern void uma_startup2(void);
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