kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/arm64/include/asm/pgtable.h
..
..
@@ -996,8 +996,7 @@
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  */
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 static inline bool arch_faults_on_old_pte(void)
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 {
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-	/* The register read below requires a stable CPU to make any sense */
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-	cant_migrate();
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+	WARN_ON(preemptible());
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 	return !cpu_has_hw_af();
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 }