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XXXX pat_sync is clever enough to check for X86FSET_PAT

*** 942,952 **** /* * We need to Sync PAT with cpu0's PAT. We have to do * this with interrupts disabled. */ - if (is_x86_feature(x86_featureset, X86FSET_PAT)) pat_sync(); /* * If we use XSAVE, we need to restore XFEATURE_ENABLE_MASK register. */ --- 942,951 ----